Canon 6Da and Esprit 100mm f5.5 telescope and Optolong L (IR/UV cut) filter. Two separate stacks in Deepskystacker 12x30sec iso1600 and 40x120sec iso1600 using 20 darks, 31 flats and 174 biasframes. Processed in Pixinsight using DBE, HDRCombination, Histogramtransformation, HDR Multiscaletransform and Curves. No Noisereduction.

Knight Observatory, Tomar

Use F11 and L for best view.

Melbourne Australia

Skywatcher ED72 with 0.85 reducer/corrector

ASIAIR Pro controlling the Neq6 mount.

ZWO 294mc pro

90 minutes at 600 secs each

optolong L-Extreme

Astropixel processor and photoshop

Nome: NGC6164 e NGC6165

Tipo: Nebulosa bipolar de emissão

Distância: 3.700 anos-luz

Magnitude Visual da estrela central: 6.71 ~ 6.81

Constelação: Norma [5]

Esta é a nebulosa bipolar catalogada como NGC6164 e NGC6165. O objeto acima é conhecido no mundo astrofotográfico como Ovo do Dragão de Ara. Tal nome foi dado devido a sua forma ovalada e por estar próximo da nebulosa NGC6188 que possui uma estrutura que dá a ideia de dois dragões lutando. NGC6188 pertence à constelação de Ara, o Altar mas a nebulosa bipolar fotografada aqui pertence à constelação de Norma, o Esquadro. Já tive a oportunidade de fotografar NGC6188 que pode ser vista no link: www.flickr.com/photos/astrocamera/40620850792/in/photostr....

Este nebulosa bipolar sempre me despertou interesse! Não pude deixar de fotografá-la no inverno de 2018. A imagem acima é o resultado deste registro. Na astronomia este objeto tem levantado muitos questionamentos. O que estaria acontecendo com a estrela no centro da foto? O que teria formado as duas nebulosidades no seu entorno? Seria uma nebulosa planetária indicando o fim da vida desta estrela ou trata-se de uma nova que lançou parte da sua estrutura no meio interestelar? Algumas perguntas já foram respondidas pelos astrônomos enquanto outras permanecem em estudo.

A estrela central é catalogada como HD 148937. Até o momento é a única estrela na nossa galáxia catalogada como estrela magnética de tipo espectral Of?p que apresenta este tipo de nebulosidade [1]. É um tipo raro de estrela sendo que até o momento apenas 5 estrelas deste tipo espectral foram identificadas [2]. A estrela possui aproximadamente entre 50 e 60 vezes mais massa que o nosso Sol, muito quente, massiva e possui um forte campo magnético que canaliza o vento estelar na direção do eixo magnético. É uma estrela que possui variação espectral bastante peculiar com um período de 7,03 dias sendo que as demais estrelas deste tipo possuem uma variação muito maior entre 73 dias até 55 anos. A variação espectral é explicada devido ao eixo magnético ser inclinado em relação ao eixo rotacional da estrela [1].

Sobre a nebulosidade NGC6164 e NGC6165, sabe-se que se trata de uma nebulosa de emissão com aproximadamente duas massas solares, uma nebulosa ionizada por HD 148937. O formato e a estrutura desta nebulosidade sugere que a mesma foi criada devido à inclinação do eixo rotacional da estrela com o forte eixo magnético da mesma [1]. Um modelo desta estrutura pode ser visto em [3]. Duas são as teorias da origem desta nebulosa. Uma delas é de uma gigante erupção que ejetou o material estelar e este espiralou-se em direção aos pólos. A outra teoria está relacionada à fusão de duas binárias. Estudos apontam que a teoria mais válida para a formação da nebulosa seria da grande erupção mas os estudos ainda continuam [1].

Além da nebulosidade de NGC6164 e NGC6165 é possível ver nesta imagem uma outra nebulosa mais externa chamada de Esfera de Strömgren [1]. Essa nebula é uma esfera de hidrogênio ionizado que circunda estrelas jovens dos tipos espectrais O ou B [4]. Um dos objetos mais conhecidos que apresenta este tipo de estrutura é a Nebulosa da Roseta (NGC 2237).

Bom, quanto ao registro deste objeto devo dizer que até o momento foi um dos mais desafiadores tanto na captura como no processamento. Essa imagem usa a paleta bicolor, usando os filtros H-alpha e Oxigênio 3. No espaço de cor RGB, no canal vermelho R foi utilizado o filtro H-alpha, o canal verde G foi sinteticamente produzido utilizando a técnica de Steve Cannistra [6] usando a fórmula (Oxigênio + 30% de H-alpha) e no canal azul B foi utilizado o filtro Oxigênio 3. O canal de luminância foi obtido pela técnica de super luminância combinando H-alpha e Oxigênio.

A Esfera de Strömgren é discretamente vista no filtro H-alpha sendo mais pronunciada no filtro Oxigênio. Foi necessário um tempo de integração maior no filtro Oxigênio para conseguir destacá-la na imagem.

Registrei esta imagem em diferentes noites e locais em Julho e Agosto de 2018.

- Em julho foi registrado na comunidade rural Riacho do Mato - município de São Romão - Minas Gerais - Brasil. Um local com Escala de Bortle 1.

- Em agosto foi registrado na área rural de Munhoz - Minas Gerais - Brasil. Um local com Escala de Bortle 4.

Dados técnicos:

Gain: 0, Offset: 10, temperatura da câmera: -20°C, exposição total de 6h45m, darks, flats e bias aplicados.

Filtros

H-Alpha: 37 x 300s / Bin 1x1

OIII: 44 x 300s / Bin 1x1

Equipamento:

- Montagem Equatorial Orion Atlas EQ-G

- Telescópio GSO Ritchey-Chretien 8" F8 Fibra de Carbono

- Câmera ZWO ASI1600MM Cooled

- Redutor focal Astro-Physics 67 CCDT

- Auto guiagem com câmera ZWO ASI120MM em OAG

- Roda de Filtros ZWO 8 posições

- Filtro Optolong 1,25" H-Alpha 7nm

- Filtro Optolong 1,25" OIII 6.5nm

Softwares

- Captura: APT - Astro Photography Tool 3.50

- Processamento: PixInsight 1.8 e Adobe Photoshop CS5

- Guiagem: PHD2

- Controle: EQMOD e SkyTechX

[1] www.aanda.org/articles/aa/full_html/2017/03/aa29585-16/aa..., March 2017 - Evolutionary status of the Of?p star HD 148937 and of its surrounding nebula NGC 6164/5 - L. Mahy, D. Hutsemékers, Y. Nazé, P. Royer, V. Lebouteiller and C. Waelkens

[2] arxiv.org/pdf/1108.4847.pdf - The spectral variability and magnetic field characteristics of the Of?p star HD 148937, Sep 2011 - G.A. Wade, J. Grunhut, G. Graefener, I.D. Howarth, F. Martins, V. Petit, J.S. Vink, S. Bagnulo, C.P. Folsom, Y. Nazé, N.R. Walborn, R.H.D. Townsend, C.J. Evans, the MiMeS Collaboration

[3] www.aanda.org/articles/aa/full_html/2017/03/aa29585-16/F1...

[4] en.wikipedia.org/wiki/Str%C3%B6mgren_sphere

[5] simbad.u-strasbg.fr/simbad/sim-id?mescat.distance=on&...

[6] www.starrywonders.com/bicolortechniquenew.html

Ps. English version just below

A constelação da Baleia, Cetus, não só abriga Mira, a primeira estrela variável descoberta em 1596 por David Fabricius [1], como também a galáxia NGC 247 e um famoso cluster de galáxias conhecido como Cadeia de Burbidge.

A galáxia NGC 247 possui o nome popular de galáxia Buraco da Agulha. Este nome foi dado em função do formato da galáxia e de uma área mais escura localizada em um de seus lados, forma que lembra a cabeça de uma agulha. NGC 247 é uma galáxia espiral intermediária que se encontra distante de nós a 11,1 milhões de anos-luz[2], é membro do Grupo de Galáxias do Escultor e possui um diâmetro de 70000 anos-luz. Ela possui uma região vazia muito incomum em galáxias. Estudos apontam que este "vazio" contém estrelas velhas, vermelhas, mais apagadas e uma ausência de estrelas jovens azuis comuns nos braços galáticos[3]. Embora os astrônomos ainda não tenham certeza de como esse vazio se formou, estudos recentes sugerem que pode ter sido causado pelas interações gravitacionais com partes de outra galáxia [4].

A Cadeia de Burbidge, um cluster com cinco galáxias quase alinhadas, localizado acima e à direita de NGC 247 está distante de nós a cerca de 300 milhões de anos-luz[5]. Este grupo de galáxias foi descoberto em 1963 por Geoffrey Burbidge, Margaret Burbidge e Fred Hoyle e o nome foi dado em homenagem ao casal Burbidge[6]. Este trio juntamente com William Fowler publicaram em 1957 o famoso artigo de astrofísica "Synthesis of elements in stars" creditado como a origem da teoria da nucleossíntese estelar[7]. Este grupo de galáxias recebem, da direita para a esquerda na imagem, os nomes de NGC247A, NGC247B, NGC247C, NGC247D e NGC247E e possuem respectivamente magnitudes aparentes de 16.91, 13.70, 17.00, 15.01 e 13.82, segundo catálogo LEDA. Na imagem é possível visualizar no limiar entre ruído e sinal a interação gravitacional de maré entre as galáxias NGC247B e NGC247C.

Fontes:

[1] en.wikipedia.org/wiki/Mira

[2] en.wikipedia.org/wiki/NGC_247

[3] The Void in the Sculptor Group Spiral Galaxy NGC 247, Wagner-Kaiser, R.; Demaio, T.; Sarajedini, A.; Chakrabarti, S. (2014).

[4] spacetoday.com.br/o-coracao-da-galaxia-ngc-247/

[5] apod.nasa.gov/apod/ap180330.html

[6] Is the Chain of Galaxies near NGC 247 Anomalous?, Balkowski, C. & Chamaraux, P. - Astronomy and Astrophysics, Vol. 43, p. 297 (1975)

[7] en.wikipedia.org/wiki/B2FH_paper

Registrei esta imagem em 03 e 04 de agosto de 2019 na zona rural de Padre Bernardo - GO e no dia 31 de agosto de 2019 na zonal rural de Munhoz - MG. Locais com escala de Bortle 3 e 4 respectivamente.

Dados técnicos:

Gain: 139, Offset: 10, temperatura da câmera: -15°C, exposição total de 8h30m, bias, darks, flats e dark flats aplicados.

O filtro H-Alpha foi utilizado tanto para enriquecer o canal Vermelho e o canal de luminância com o objetivo de destacar possíveis nebulosas de emissão presentes na galáxia.

Filtros

Luminância: 36 x 300s / Bin 1x1

H-Alpha: 20 x 300s / Bin 1x1

Vermelho: 16 x 240s / Bin 1x1

Verde: 16 x 240s / Bin 1x1

Azul: 25 x 240s / Bin 1x1

Equipamento:

- Montagem Equatorial Orion Atlas EQ-G

- Telescópio GSO Ritchey-Chretien 8" F8 Fibra de Carbono

- Câmera ZWO ASI1600MM Cooled

- Redutor focal Astro-Physics 67 CCDT

- Auto guiagem com câmera ZWO ASI120MM em OAG

- Roda de Filtros ZWO 8 posições

- Filtros Optolong 1,25" Luminance, H-Alpha 7nm, Red, Green, Blue

Softwares

- Captura: APT - Astro Photography Tool 3.50

- Processamento: PixInsight 1.8 e Adobe Photoshop CS5

- Guiagem: PHD2

- Controle: EQMOD e SkyTechX

-----------------------------------

The whale constellation, Cetus, not only has Mira, the first variable star discovered in 1596 by David Fabricius [1], but also the NGC 247 galaxy and a famous cluster of galaxies known as the Burbidge's Chain.

The galaxy NGC 247 has the popular name of Needle's Eye galaxy. This name was given due to the shape of the galaxy and a darker area located on one of its sides, a shape that resembles the head of a needle. NGC 247 is an intermediate spiral galaxy that is 11.1 million light years away from us [2], is a member of the Sculptor Galaxies Group and has a diameter of 70000 light years. It has a very unusual void region in galaxies. Studies indicate that this "void" contains old, red, more faint stars and an absence of common blue young stars in the galactic arms [3]. Although astronomers are still unsure how this void formed, recent studies suggest that it may have been caused by gravitational interactions with parts of another galaxy [4].

The Burbidge's Chain, a cluster of five nearly aligned galaxies, located above and to the right of NGC 247 is some 300 million light years away from us [5]. This group of galaxies was discovered in 1963 by Geoffrey Burbidge, Margaret Burbidge and Fred Hoyle and the cluster's name was given in honor of the Burbidge couple [6]. This trio together with William Fowler published in 1957 the famous astrophysics article called as "Synthesis of elements in stars" credited as the origin of the theory of stellar nucleosynthesis [7]. This group of galaxies receives, from right to left in the image, the names of NGC247A, NGC247B, NGC247C, NGC247D and NGC247E and have respectively apparent magnitudes of 16.91, 13.70, 17.00, 15.01 and 13.82, according to the LEDA catalog. In the image, it is possible to visualize, at the threshold between noise and signal, the tidal gravitational interaction between the galaxies NGC247B and NGC247C.

References:

[1] en.wikipedia.org/wiki/Mira

[2] en.wikipedia.org/wiki/NGC_247

[3] The Void in the Sculptor Group Spiral Galaxy NGC 247, Wagner-Kaiser, R.; Demaio, T.; Sarajedini, A.; Chakrabarti, S. (2014).

[4] spacetoday.com.br/o-coracao-da-galaxia-ngc-247/

[5] apod.nasa.gov/apod/ap180330.html

[6] Is the Chain of Galaxies near NGC 247 Anomalous?, Balkowski, C. & Chamaraux, P. - Astronomy and Astrophysics, Vol. 43, p. 297 (1975)

[7] en.wikipedia.org/wiki/B2FH_paper

This image was captured at 3rd and 4th August 2019 in rural zone of Padre Bernardo - Goiás - Brasil and 31th August 2019 in rural zone of Munhoz - Minas Gerais - Brazil. Bortle Scale 3 and 4 respectively. The Ha filter was used to enhance Red and Luminance channel.

Technical data:

Gain 139, offset 10, Bin 1x1, sensor's temperature -15°C, total exposition of de 8h30m, bias, darks, flats and darks flats applied.

Filters:

Luminance 36 x 300s

H-Alpha 20 x 300s

Red 16 x 240s

Green 16 x 240s

Blue 25 x 240s

Equipments:

- Equatorial Mount Orion Atlas EQ-G

- GSO Ritchey-Chretien Telescope 8" F8 Carbon Fiber

- ZWO ASI1600MM Cooled

- Focal reducer Astro-Physics 67 CCDT

- Guided with ZWO ASI120MM using OAG

- ZWO Filter Wheel (8 x 1.25")

- Filter Optolong 1.25" Luminance

- Filter Optolong 1.25" H-Alpha 7nm

- Filter Optolong 1,25" Red

- Filter Optolong 1,25" Green

- Filter Optolong 1,25" Blue

Softwares:

- Capture: APT - Astro Photography Tool 3.50

- Processing: PixInsight 1.8 and Adobe Photoshop CS5

- Guiding: PHD2

- Control: EQMOD and SkyTechX

Here is a photo of the Orion Nebula and Running Man captured using a Canon EF 300mm F/4L Lens.

This prime lens is a convenient focal length for many deep sky objects including the jewel of Orion.

2 Hours, 49 Minutes total exposure

117 x 90-seconds at ISO 400

Canon EOS Rebel T3i (modified)

Canon EF 300mm F4/L USM (Non IS)

Optolong L Pro Filter (Clip in)

iOptron SkyGuider Pro Mount

See exactly how this shot was captured here: astrobackyard.com/canon-300mm-f4-astrophotography/

Imaged in a bortle 5 sky. Had to fight the weather and smoke to get this one. Four nights of imaging over two months of new moon. But it payed off. Love the way this turned out.

Image acquisition Narrowband:_______________

89 Light Frames

40 Dark Frames

40 Flat Frames

40 Offset/Bias Frames

Exposures 300 Sec

ISO-1600

Equipment:_________________

Telescope: ES ED102CF FCD-100 F7-714mm

Orion .8x focal reducer

ZWO ASIAir Plus

Mount: ZWO AM5

Camera: Nikon D7000 Stock

Optolong L-Enhance Dual Narrowband Filter

Image acquisition-Full Color image:________________

146 Light Frames

100 Dark Frames

100 Flat Frames

100 Offset/Bias Frames

Exposures 300 Sec

ISO- 800

Equipment:________________

Telescope: ES ED102CF FCD-100 F7-714mm

Orion .8x focal reducer

ZWO ASIAir Plus

Mount: ZWO AM5

Camera: Nikon D7000 Stock

Baader Moon & Sky Glow filter

Auto Guiding:__________________

ASIAir PHD guiding

Camera: ZWO ASI178MM

Guide Scope: SVBony 60mm x 240mm

Post Processing:________________

Sirilic V-1.15.2

GraXpert V-3.0.2

Siril V-1.2.4

GIMP V-2.10.38

Total Exposure Time: 20Hrs.

Messier 1 - Crab Nebula Supernova Remnant

Photographed from my home in Bortle 6 North West England

18/3/22 and 20/3/22

My first deep sky image from home for a while and I am really pleased with it!

Nearly 1000 years ago in 1054 AD, Chinese astronomers witnessed the sudden appearance of a bright "guest" star in the constellation of Taurus. The star was about 4 times brighter than Venus and was visible in daylight for 23 days.

We now know that this “guest star” was actually a supernova explosion 6,500 light-years distant, which gave rise to the Crab Nebula, an expanding six-light-year-wide remnant of this incredible event.

At the centre of the Crab Nebula is a rapidly rotating neutron star, or pulsar. The neutron star, like a lighthouse, ejects twin beams of radiation that make it appear to pulse 30 times per second as it rotates.

Equipment:

- Skywatcher EQ6-R pro

- Skywatcher 10 inch f4 Quattro

- Skywatcher Aplanatic coma corrector

- Skywatcher Evoguide 50ED + ZWO ASI 120MM-mini

- ZWO ASI 294MC pro

- ZWO EAF

- Optolong L-eXtreme

- Pegasus Powerbox advance

Acquisition:

- Lights: 55 x 240s at gain 125, offset 30, cooled to -15c

- Darks: 30

- Flats: 30 + 30

- Darkflats: 30+30

Processing:

- APP, PS, StarXterminator, Topaz

Some of the records I have done so far.

(I will seek to improve the next ones)

Objects in this image (top to bottom):

-Column on the left: Galaxy Centaurs A, Eagle Nebula and Helix Nebula ("eye of God");

- Central column: Eta Carinae Nebula, NGC 2997 Galaxy, M95 Galaxy, Solar System objects that I recorded in 2020, Sombrero Galaxy, Plato Crater (Moon);

- Column on the right: Trifid Nebula, Lagoon Nebula and Southern Pinwheel Galaxy.

Used equipments:

- Solar System Objects: Sky-Watcher 203mm F/5 EQ5 reflector with Onstep, ASI 290MC, UV/IR Cut filter, Barlow Tele Vue 3x (Planets), Thousand Oaks Solar Filter (Sun).

- Other records: Sky-Watcher 203mm F/5 EQ5 reflector with Onstep, Canon T6 (primary focus) modified, Optolong L-eNhance filter (in part of the frames). 50mm guidescope with ASI 290MC.

@LopesCosmos

www.Instagram.com/LopesCosmos

www.telescopius.com/profile/lopescosmos

La galaxie de l’Aiguille, officiellement nommée NGC 4565, est une galaxie spirale située à environ 40 millions d’années-lumière de la Terre, dans la constellation de la Chevelure de Bérénice.

Observée par la tranche depuis notre point de vue terrestre, elle présente une forme fine et allongée qui lui vaut son surnom. Elle est souvent considérée comme un exemple spectaculaire de galaxie spirale vue par la tranche, avec un bulbe central brillant et un disque sombre parcouru de poussières interstellaires.

Avec un diamètre estimé à plus de 150 000 années-lumière, elle est comparable en taille à la Voie lactée

– 236 x 300 s – ASI 2600MC Pro (gain 100, -10 °C)

– Filtre L-quad enhanced Optolong

– Monture NEQ6 Pro GoTo

– Lunette guide Askar FRA400 + ASI 120MM Mini, le tout piloté par l’ASIAIR

– Bortle 5

– Traitement : Siril / PixInsight / Photoshop

----

The Needle Galaxy, officially known as NGC 4565, is a spiral galaxy located about 40 million light-years from Earth in the constellation Coma Berenices.

Seen edge-on from our earthly perspective, it has a thin and elongated shape, which gives it its nickname. It is often regarded as a spectacular example of an edge-on spiral galaxy, with a bright central bulge and a dark disk filled with interstellar dust. With an estimated diameter of over 150,000 light-years, it is comparable in size to the Milky Way.

– 236 x 300 s – ASI 2600MC Pro (gain 100, -10 °C) – L-quad enhanced Optolong filter – NEQ6 Pro GoTo mount – Askar FRA400 guide scope + ASI 120MM Mini, all controlled by ASIAIR – Bortle 5 – Processing: Siril / PixInsight / Photoshop

Sky-watcher T250/1000 Newton F4

ZWO ASI294 MC-Cool à -10°C

AZ-EQ6 Pro Goto USB

Guidage : TS 80/328 F4,1 + ZWO ASI120 mini

Acquisition : ASIAIR+

traitement : PIXSINSIGHT

Optolong L-pro

Barlow Kepler x2.5

GPU coma-correcteur Sky-watcher

26 Mars 2025

31x300" + 101 Bias 64 Darks 16 Flats - Gain 120

Intégration: 2 h 35'

Copyright and personal information:

My name: Cornelis van Zuilen

My instagram: www.instagram.com/cvz_astrophotography/

This picture was taken by me on my balcony here in Heiloo, The Netherlands!

Equipment used:

Telescope: Askar 103apo

Main camera: ZWO ASI294MC Pro

Filters: Optolong L-eNhance 2'' & L-Pro 2"

Guidescope: SvBony Sv106 50mm

Guide camera: ZWO ASI224MC

Mount: Skywatcher EQ6-R Pro

Exposures:

Optolong L-eNhance

5hr 25min

65x 300sec

Calibration frames:

20 Darks

20 Flats

20 Dark flats

Finally done with this image after almost 2 months! Needless to say it was a struggle processing the data and ended up start over. A lot of the data collected was during various moon phases while using the Optolong L-eNhance which wasn’t the best filter for some of these conditions. It was an experiment to see what I can get away with using a 24nm filter.

While I was processing this image I had something crazy happen. I was struggling with a particular process and communicating with people on the PixInsight forums to find a resolution. Out of nowhere I had a renown astro photographer call me on my phone and help me through the process. This is someone who is well known in the astronomy community. This completely blew my mind and thought it was crazy that someone would take time out of their day to help someone who needed it. I guess all part of the journey. In all I’m happy with the results and the resolution of the image.

ccd: Moravian G3-16200 with EFW + OAG

filters: Optolong LRGB and Astrodon 5-nm Ha/O3

telescope: FSQ 106N f/5

mount: 10Micron GM2000 QCI

guider: Lodestar X2

exposure: L 31x10min + RGB 20x5min (all 1x1)

location: Les Granges, 900 m (Hautes Alpes, France)

software: TheSkyX Pro, CCD Commander, Pixinsight, PS CC

date: 16 Jan - 21 Feb 2020

The Heart Nebula, IC 1805, in Cassiopeia, from Austin, Texas on 2021-09-23 10:25 UT.. WO RedCat 250/51mm, Optolong L-eNhance NB Filter, ZWO ASI533 MC Pro cooled camera -10 C, SW AZ-EQ5 Pro mount, ZWO ASIAIR Pro controller. Four hours of exposure 83x3min. PixInsight, Noise/Blur/StarEXterminator, GHS, and Photoshop processing.

Imaging telescopes or lenses: Rokinon 135mm f/2.0

Imaging cameras: ZWO ASI 2600 MC Pro

Mounts: SkyWatcher EQM-35 Pro

Guiding telescopes or lenses: William Optics 50mm GuideScope

Guiding cameras: ZWO ASI290MM

Software: PixInsight

Accessory: ZWO Asiair Pro

Dates:Aug. 12, 2021

Frames:Optolong L-Pro 2'': 47x30" (23' 30") (gain: 100.00) -10C

Integration: 23' 30"

Darks: ~20

Flats: ~20

Bias: ~50

This is a four panel mosiac of the Region surrounding the bright star Dschubba.

One and a half hours per panel in rgb (club dark site) and one hour per panel in H alpha (Bortle 6)

10 hours of integration in total.

Stacked individual panels -RGB and Ha -separately in AstroPixel Processor; 4 panel RGB and Ha mosaics created -LNC first degree, MBB 20% in APP

Stacked mosaics processed in Pixinsight

Dynamic crop

ADBE

BlurX (correct only)

Image solve

SPCC (RGB only)

BlurX

Starnet++

NoiseX

Nebula

Generalised Hyperbolic Stretch

Curves

SetiAstro star stretch

PixelMath to add stars back to starless image

Mosaics registered in Pixinsight

Stars removed from registered Ha mosaic with Starnet++. This still left a few very bright stars.

Converted to tiff and remaining stars removed using content aware fill in Photoshop CS6

(this did a better job than clone stamp in PixInsight)

Saved in PI as XISF File.

Combined RGB and Ha using the excellent Combine Ha and RGB process in PixInsight

Equipment

Samyang 135mm/ZWOASI 533 Mc and MM/Optolong UV/IR Filter/Antlia 3nm H alpha filter/ASIAIR/AM3

Software

ASIAIR App

AstroPixelProcessor

PixInsight with RC plugins (NoiseX, Blur X) and Starnet++

Photoshop CS6

M101 est une galaxie spirale située dans la constellation de la Grande Ourse, à environ 23 millions d’années-lumière de la Terre… 🌌

Elle est environ 70 % plus grande que notre Galaxie, la Voie lactée, et même plus imposante que notre voisine M31 (la galaxie d’Andromède), avec un diamètre de 170 000 années-lumière.

Vue parfaitement de face, cette orientation met en valeur ses bras spiraux très développés, riches en détails : amas d’étoiles, nébuleuses (en rouge/violet), zones de formation stellaire, etc.

Non loin de M101 se trouve la petite galaxie NGC 5474, qui interagit gravitationnellement avec elle ; cette interaction a déformé sa structure, décalant son noyau du centre de son disque — un détail visible sur la dernière image.

.

🔭Cette photo est le résultat de 30 heures de pose (mon record perso ahah) :

– 370 x 300 s – ASI 2600MC Pro (gain 100, -10 °C)

– Filtre L-quad enhanced Optolong

– Monture NEQ6 Pro GoTo

– Lunette guide Askar FRA400 + ASI 120MM Mini, le tout piloté par l’ASIAIR

– Bortle 5

– Traitement : Siril / PixInsight / Photoshop

----

M101 is a spiral galaxy located in the constellation Ursa Major, about 23 million light-years from Earth… 🌌

It is about 70% larger than our Milky Way galaxy, and even more massive than our neighbor M31 (the Andromeda galaxy), with a diameter of 170,000 light-years.

Viewed perfectly face-on, this orientation highlights its highly developed spiral arms, rich in details: star clusters, nebulae (in red/purple), stellar formation zones, etc.

Not far from M101 is the small galaxy NGC 5474, which interacts gravitationally with it; this interaction has distorted its structure, shifting its nucleus away from the center of its disk — a detail visible in the latest image.

🔭 This photo is the result of 30 hours of exposure (my personal record haha): – 370 x 300 s – ASI 2600MC Pro (gain 100, -10 °C) – Optolong L-eNhance filter – NEQ6 Pro GoTo mount – Askar FRA400 guide scope + ASI 120MM Mini, all controlled by ASIAIR – Bortle 5 – Processing: Siril / PixInsight / Photoshop

Rho Ophiuchi "Fireworks from our Milky Way"

In my opinion it's one of the most colorful targets in our night sky, the star forming region of Rho Ophiuchi lies only about 360 light years from us in the Constellations of Ophiuchus and Scorpius.

This collection of images making up a 4 panel Mosaic was Captured over 3 nights from grandmesaobservatory.com in Colorado, using the QHY367C One Shot Color CMOS Camera on Walter Holloway's Takahashi FSQ130

Panel 1. rho Oph Nebula IC4604, and IC4605

www.flickr.com/photos/terryhancock/35707565605/in/photost...

Panel 2. Globular Clusters M4 and NGC6144

www.flickr.com/photos/terryhancock/35538862302/in/photost...

Panel 3. IC4605 and Dark Nebulae of Rho Ophiuchi

www.flickr.com/photos/terryhancock/35667959956/in/photost...

Panel 4. IC4605 and Antares www.flickr.com/photos/terryhancock/35320386870/in/photost...

Rho Ophiuchi 4 panel mosaic consisting of the above 4 panels

www.flickr.com/photos/terryhancock/35667959596/in/datepos...

Total Integration Time 8 Hours (2 hours per panel)

Technical Information

Location: Grand Mesa, Whitewater Colorado

Captured June 2017

QHY367C Full Frame One Shot Color COLDMOS cooled to -20C

Size: 7376 x 4938 pixels each panel, Mosaic is 11736x8093 pixels

Pixel Size: 4.88um x 4.88um

Total integration Time 480 minutes

Gain 2850, Offset 76

Darks and Flats no Bias

120 x 240 sec @ 1x1

Optics: Takahashi FSQ-130 @ F5.0 650mm

Optolong Luminance Filter for IR Block

Paramount ME German Equatorial Mount

Image Acquisition Maxim DL

Pre Processing Deep Sky Stacker

Post Processing Pixinsight & CS6

Please check out the new observatory at Grand Mesa Colorado

www.grandmesaobservatory.com

Barnard 174 ( LDN 1165 )è una Nebulosa Oscura in Cefeo. Queste tipo di nebulose oscure sono composte da gas e polvere che assorbono la luce delle stelle, una regione attiva di formazione stellare. Telescopio Skywatcher Newton 200/1000 @950 RID. TS, Camera Qhy294c pro guida Phd2 con ASI 224 , software di acquisizione N.I.N.A. Mont. Eq6r pro ,light 116 da 120" tot. 3h e 52 minuti, filtro Optolong Astronomy Filter L-QEF. somma DSS elab PixInsight e Photoshop

SQM 19.48

Ripresa il 24 Luglio 2024

De gauche à droite ; Japet - Rhéa - Dioné - Titan et Téthys

Les anneaux s’aplatissent lentement, le 23 Mars 2025 ils seront vus par la tranche, pourvu que le ciel soit dégagé !

Instrument de prise de vue: Skywatcher T250/1000 Newton F4

Caméra d'imagerie: Player-One Uranus-C IMX585

Monture: Skywatcher AZ-EQ6 Pro Goto USB

Instrument de guidage: sans

Caméra de guidage: sans

Logiciels acquisition: Stellarium - SharpCap

Logiciels traitement :AutoStakkert - Astrosurface - Darktable - Gimp - FastStone Images Viewer

Filtres: Optolong L-PRO

Accessoires: Focuseur ZWO EAF - Barlow Kepler x2.5

Dates: 4 Nov. 2024- 20h46 GMT

Planète: Images unitaires: SER (2197x49.5ms)

Gain: 466

Lunes: Images unitaires: Fits 103s (100x1.03s)

Gain: 498

Échantillonnage: 0.164 "/pixel

Focale résultante: 3638mm

F/D: 15

Seeing: 1.24 "Arc

Bortle: 5

Phase de la Lune (moyenne):--

* Setup:

Telescope: Refractor Orion ED80

Focal Length: 600mm

Camera: QHY163M

Mount: Veronica CEM

Filters: LRGB and L-Pro Optolong and H-Alpha Baader 7nm..

*Exposure:

L: 15 hours (subs 180s and 300s) bin1x1

Ha: 4.5 hours (subs 300s) bin1x1

R: 3.5 hours (subs 180s and 300s) bin1x1

G: 1.25 hours (subs 180s) bin1x1

B: 1.1 hours (subs 180s) bin1x1

Total: 25 hours

Around 60 million light years away, the Fornax cluster contains 58 galaxies. NGC 1365 at bottom left is famously known as the "Great Barred Spiral" galaxy.

This is an RGB integration of over 4 hours of data captured in each channel on a QHY163M camera with Optolong RGB filters. Optics were a WO FLT110 scope with WO FlatIV. Image sequencing was controlled via Sequence Generator Pro and PHD2 with a Lakeside Astro focuser to enable autofocus. The mount was a Skywatcher AZ EQ6-GT. All post-processing was done with PixInsight.

Taken from Prachinburi, Thailand

ASERO (Astronomy Society of Edinburgh Remote Observatory)

Date: 7th Aug 2023

Integration 354 x 60 second Lights Darks Flats

Filters: Optolong L-eNhance

TS-Optics 94 mm f/5.5 Triplet Apo Refractor

TS-Optics ToupTek Color Astro Camera 2600CP

JTW mount

Photographed this back in June. about 4 hours of date using a ZWO 2600mc pro camera on a 72mm telescope at 280mm focal length, with an Optolong L-extreme filter. Processed in Astro pixel processor and Photoshop.

this is a detail cutout from the entire photo.

——— STRUMENTAZIONE ———

Telescopio: Skywatcher 200/800 Wide Photo

Camera: Zwo Asi 294 mc pro

Montatura: Skywatcher AZ-EQ6

Autoguida: 60mm UltraGuide Artesky con zwo asi 224mc

Correttore di coma: aplanatico Skywatcher f4

Filtro Optolong L-pro

Software d'acquisizione Sgpro

————— FOTO ————

temp -10 con dark, flat e darkflat

60 x 180s

————— ELABORAZIONE ————

Pixinsight

Photoshop

The Small Magellanic Cloud is a dwarf galaxy that is only visible from the southern hemisphere. It is a very wild part of the sky with burst of nebulosity everywhere some of them looking like opals . This cloud of dust was used by European for navigation in the middle ages and it is the most distant object visible the naked eye. One of my favourite target for wield field photography. This is my first attempt at this target in my short 1 year of astrophotography. I hope you enjoy it as much as I do.

Acquisition: Canon EOSm100, Optolong L-Extreme, 100 x 360s

Optics: William Optics ZS 73 with field flattener

Mount: Skywatcher EQ6-R

Guiding: William Optics Uniguide with ZWO ASI 120mm mini guide camera

Automation: KStars/Ekos running on a RPI with Stellarmate OS

Processing: App, Pixinsight and Photoshop

Shooting location: Bentleigh, Victoria, Australia, Bortel 6/7

Et voila, la 3eme photo de cette session d'astro, Messier 92. Je l'ai faite sans grande prétention entre 6h30 et 8h30 du matin car il me restait un peu de nuit et que je ne voyais pas quoi cibler de lumineux (avec cette pleine lune) d'autre qu'un amas.

M92 est un amas globulaire très loin de nous ; il se trouve à 25775 années lumières. Autrement dit, les photons captés sur cette photo, voyageant à la vitesse de la lumière entre l'amas et nous, sont partis il y a plus de 25000 ans. Il y a 25000 ans, c'est la fin du dernier maximum glaciaire, l'homme taille des silex à la perfection et est déjà présent en amérique, bien avant Trump et ses acolytes.

Comme tous les amas globulaire, c'est un objet aux caractéristiques incroyables : dans une boule de 109 années lumières de diamètre, il contient environ 330000 masses solaires (ça signifie en moyenne une étoile tous les 1.18 années lumières dans toutes les directions). Il est très agé : 13.18 milliards d'années (donc preque l'age de l'univers).

Côté photo, c'est pas la plus extraordinaire que j'ai faite, d'autant que ma mise au point a probablement bougé à cause d'une très forte variation de température au petit matin (le froid s'est intensifié). Mes étoiles ne sont donc pas très ponctuelles.

Matériel : monture Skywatcher AZ-EQ5, télescope de Newton Skywatcher 150/750, correcteur de coma, filtre Optolong L-Enhance, Canon EOS 1200D défiltré partiellement, pas d'autoguidage.

Exifs : 182 poses de 30 sec (1h31 de cumul) à 1600 iso, 50/30/30 DOF, température -16°C

Traitement Siril puis Gimp.

The Rosette Nebula is located near one end of a giant molecular cloud in the constellation Monoceros. The stars of the associated open cluster NGC 2244 were formed from the nebula's matter.

This image maps SII to red, Ha to green, and OIII to blue.

Rio Rancho NM Bortle 5 zone,

December 8-12, 2022

William Optics Redcat 51

ZWO 183mm pro

ZWO 30mm f/4 mini guide scope and ZWO 120 Mini

Optolong Ha, OIII, and SII filters

ZWO ASI Air Pro

Sky-Watcher HEQ5

72 X 300s Ha

72 x 300s OIII

72 x 300s SII

Darks bias dithering

Gain 111 at -10C

Processed in DSS and PS

Omegon Pro 96 mm F5.4 Triplet APO

Nikon Z6 Modified full spectrum

Optolong L-PRO

Sh2-101 Nebulosa tulipano, questa la versione senza filtro a banda stretta, filtro che ne avrebbe migliorato i dettagli ed i colori.

Ottenuta con circa 1,5 ore di integrazione con solo filtro multibanda Optolong L-Pro.

Riprese fatte il 31 Agosto 2024 ai Monti della Luna di Cesana (TO), con telescopio Newton 18/600 e camera ASI 294 MC Pro.

Sem dúvida alguma, na minha opinião, esta é uma das regiões mais belas da nossa vizinhança celeste pois agrega aglomerados globulares, aglomerados abertos, nebulosas de reflexão e emissão, sistema estelares múltiplos, estrelas de várias classes espectrais. Esta grande nuvem multicores é conhecida como Complexo Nebular Rho Ophiuchi, ou simplesmente, Nebulosa Rho Ophiuchi. Para que você tenha noção do tamanho desta área no céu, tome como referência o tamanho do nosso satélite natural, a Lua, na fase cheia. O tamanho angular médio da Lua cheia é de 0,5°. Se colocássemos várias luas na linha diagonal desta imagem, seriam necessárias 21 luas para cruzar toda a imagem. Infelizmente nossos olhos não conseguem captar todo este esplendor pois são objetos muito tênues.

Esta nebulosa está localizada entre a constelação Ofiúco (Serpentário) e Escorpião. É de fácil localização durante as noites de inverno. Basta encontrar a belíssima estrela Antares, facilmente visível a olho nu. Aliás, nesta imagem, a estrela dourada mais brilhante é justamente Antares, a estrela Alfa de Escorpião.

Toda a coloração amarelada na nebulosa é decorrente da reflexão da radiação de Antares, uma estrela supergigante da classe espectral M. O nome da nebulosa foi dado em função da estrela mais brilhante localizada no centro da nebulosa de reflexão azul, a estrela Rho Ophiuchi. A estrela Rho Ophiuchi faz parte de um sistema quádruplo[1]. Nesta imagem conseguimos separar apenas três componentes deste sistema. A quarta estrela está muito próxima de Rho Ophiuchi. São estrelas extremamente quentes de classes espectrais A e B.

A nebulosa Rho Ophiuchi tem sido alvo de muitas pesquisas. Isto porque é uma das regiões mais próximas do sistema solar com intensa formação estelar[2]. Usando a técnica de paralaxe, a distância sugerida da nebulosa é de aproximadamente 130 parsecs (424 anos-luz)[1].

Uma das regiões mais estudadas na nebulosa é a nuvem escura L1688. Ela está localizada na imagem próximo ao centro. Essa região apresenta muitas estrelas em seu estágio inicial de evolução; protoestrelas e estrelas pré sequência principal (em inglês, YSO)[3]. Um estudo catalogou cerca de 300 objetos YSO [1].

Mas o que teria dado início a essa intensa formação estelar? Acreditava-se que o processo iniciou-se com o choque de uma concha de gás em expansão proveniente da região de Antares, desencadeada por uma supernova e que Zeta Ophiuchi era a binária companheira desta supernova. Mas estudos espectroscópicos demonstram que tanto o processo de formação de estrelas em L1688 como das estrelas no entorno de Antares foram ocasionados por uma concha em expansão advinda da região entre o Lobo (Lupus) e Centauro (Centaurus) [1].

Fontes:

[1] Star Formation in the ρ Ophiuchi Molecular Cloud, 2008 - Bruce Wilking, Marc Gagne, Lori Allen - arxiv.org/pdf/0811.0005.pdf

[2] Proper motions of molecular hydrogen outflows in the ρ Ophiuchi molecular cloud, 2013 - M. Zhang et al - arxiv.org/pdf/1304.0195.pdf

[3] Young Stellar Object - en.wikipedia.org/wiki/Young_stellar_object

Registrei esta imagem numa sessão em 15 de Julho de 2018 na comunidade rural Riacho do Mato - município de São Romão - Minas Gerais - Brasil. Um local com Escala de Bortle entre 1 e 2. A outra sessão foi feita em 20 de abril de 2019 em Campo Belo - Minas Gerais - Brasil apenas com filtro H-Alpha. Escala de Bortle 4 na lua cheia.

Dados técnicos:

1ª sessão: ISO 800, temperatura da câmera: ~28°C, exposição total de 2h 40m (32 x 300s), darks e bias aplicados.

2ª sessão: Gain 139, temperatura da câmera: -15°C, exposição total de 2h 08m (64 x 120s), darks e flats aplicados

Equipamentos:

- Montagem equatorial SmartEQ Pro+ da iOptron

- Câmera Canon DSLR T1i 500D modificada com filtro Astrodon (1ª sessão)

- Câmera ZWO ASI1600MM Cooled com filtro Optolong HII 7nm (2ª sessão)

- Lente Sigma 150mm f/2.8 EX DG APO HSM Macro fechada em F4 (1ª sessão)

- Lente Canon 70/200mm L f/4 em 130mm fechada em F5.6 (2ª sessão)

- Auto guiagem com câmera Orion StarShoot e telescópio de guiagem 50mm Orion (1ª sessão)

- Sem guiagem na 2ª sessão

Softwares

- Captura: APT - Astro Photography Tool 3.50

- Guiagem: PHD2

- Controle: iOptron Commander e SkyTechX

- Processamento: PixInsight 1.8 e Adobe Photoshop CS5

Resolução .......... 6,474 arcsec/px

Rotação ............ -91,391°

Distância focal .... 130 mm

Tamanho pixel ...... 4,70 um

Campo de visão ..... 8° 16' 40.0" x 5° 28' 1.1"

Centro da imagem ... RA: 16 26 46,800 Dec: -25 02 02,18

Fuji XT-10

Samyang 135 f2@2

14x10min

800iso

Filtre Optolong L Extreme

traitement Siril

photometrie

tilt...jeu dans la bague

Williams Optics Redcat 51

ZWO183mc pro

Optolong l-pro filter

ZWO air pro

Sky-Watcher HEQ5 Pro

10 x300s lights. Flats , darks and bias.

Gain 122 at -10C

Processed in APP and Pixinsight

25th February 2021

Horsehead Nebula or Barnard 33

Skywatcher 200p, NEQ6 mount, Optolong CLS-CCD filter, Baader MPCC M3 coma corrector, ASI294MC Pro at -20C. 41 x 3 minute exposures (2 hours 3 minutes) at Gain 121, dithering every 5 frames, Offset 30, 20 dark frames, 40 flat fields, 40 dark flat frames.

Processed in APP, Topaz de-noise and Photoshop.

23rd December 2020

Knife Edge galaxy.

Sometimes referred to as the Silver Needle galaxy. Though this can get confusing as NGC 4244 also carries this nickname. You can find NGC 5907 in the constellation of Draco, as William Herschel did way back in 1788 for the first time.

At a mere 50 million light years distance NGC 5907 is the home of the groundbreaking pulsar NGC 5907 X-1. www.esa.int/Science_Exploration/Space_Science/The_brighte...

Boring techie bit:

Skywatcher Quattro 8" Newtonian Reflector steel tube with the f4 aplanatic coma corrector, Skywatcher EQ6 R pro mount, Altair Starwave 50mm guide scope, ZWO asi120mm guide camera mini, ZWO asi533mc pro cooled to -20c gain 100, Optolong L'enhance 2" filter, ZWO asiair plus.

120s exposures.

Best 70% of 45 light frames.

Darks, Flats & Bias.

Stacked with DeepSkyStacker and processed in StarTools

Optique: TSAPO 125-975 Photoline (x0.79)

Monture: HEQ-5

Imageur: Zwo ASI-2600MC-Pro

Guidage: Zwo ASI 120 MC

Prise de vue: ASI Air

Filtre: Optolong L-extreme

150 Brutes de 120s Gain:100 60 DOF

Pré-traitement: SIRIL

Traitement: PixInsight + Darktable

M33, The Triangulum Galaxy. The most distant permanent object visible with the naked eye, 2.72 Million light years in distance.

80 min each RGB

160 min L

Skywatcher esprit 120

ASI1600mm

still working on proper color balance and exposure times for my location.

astrob.in/eqvobc/0/

This is the first record I make of the "Helm of Thor" nebula (NGC 2359). The stacked frames, captured in four nights, totaled 10 hours and 30 minutes of exposure.

"NGC 2359 is a helmet-shaped cosmic cloud with wing-like appendages popularly called Thor's Helmet. Heroically sized even for a Norse god, Thor's Helmet is about 30 light-years across. In fact, the helmet is more like an interstellar bubble, blown as a fast wind from the bright, massive star near the bubble's center inflates a region within the surrounding molecular cloud. Known as a Wolf-Rayet star, the central star is an extremely hot giant thought to be in a brief, pre-supernova stage of evolution. NGC 2359 is located about 15,000 light-years away in the constellation Canis Major". Source: NASA (science.nasa.gov/ngc-2359-thors-helmet)

Sky-Watcher Reflector Telescope 203mm F/5 EQ5 with Onstep and ZWO EAF electronic focuser, modified Canon T6 (primary focus), Optolong L-eNhance Filter (part of the frames). Angeleyes 50mm guidescope with ASI 290MC. 126 light frames (33x300" ISO 800 + L-eNhance: 93x300" ISO 1600), 80 dark frames. Processing: Sequator, PixInsight and Camera Raw.

@LopesCosmos

www.instagram.com/lopescosmos

www.telescopius.com/profile/lopescosmos

CAPTURE INFO

-------------------

Scope Centering:

- RA: '0 54 16.931'"

- Dec: '+56 44 22.56'"

Date Captured:

October 31, Home (Bortle 7)

GUIDING NOTES:

Average, averaging ~0.7 RMS

EQUIPMENT

Optics: William Optics 61ii doublet refractor @ 368mm FL

William Optics adjustable field flattener

Camera: ZWO 533mc Pro (OSC) @ gain 390

Filters:

- 2" Optolong L-Enhance using filter drawer

Mount:

- iOptron GEM 28

Guiding:

- ZWO 120mm mini (red filter)

- William Optics 32mm f/3.75 UniGuide Guidescope

- ZWO ASI Air Pro

- Used previous calibration

- Dither: 5 pixels, every 2 frames

Acquisition:

- ZWO ASI Air Pro (Plan Mode)

IMAGE CALIBRATION (PixInsight)

Weighted Batch Preprocessing

- Lights, Darks, Flat Darks, Bias

- Cosmetic Correction

- Stats

- (73) 180 second subs

- Normalize Scale Gradient Script to nomalize background

NON LINEAR PROCESSING (PixInsight)

1. Dynamic Background Extraction

2. Background Neutralization

3. Color Calibration

3. Linear Noise Reduction using MultiscaleLinearTransform

4. Another Linear Noise Reduction using MultiscaleLinearTransform

LINEAR PROCESSING (PixInsight)

1. Easy Soft Stretch script

2. SCNR on the G channel

3. Removed the stars with Starnet

4. Created Range mask to hide the nebula

5. Used HistogramTransformation to darken the star halos.

6. Ran HDRMultiscaleLinearTransform to enhance nebula

7. Ran a slight "S" curve using CurvesTransformation to darken background and enhance nebula

8. LocalHistogramEqualization @ 25 for contrast on nebula

9. LocalHistogramEqualization @ 25 to further contrast nebula

10. MultiscaleLinearTransform to sharpen detail in the nebula

11. Added back the stars with 15% reduction using PixelMath

12. Created Star Mask and inverted to protect the stars

13. Increased saturation of the stars using Curves

14. Inverting the star mask back to protect stars and increased blue in the nebula using curves

15. Made image ready for the web using ICCProfileTransformation

(Traitement HOO)

Camera Asi 071

Filtre dual-band

Apo RedCat 51 f4.9

Guidage chercheur SW et Asi 174

Monture EM-200 Temma-2Z

46x300 sec, 51 DOF (3h50)

Echelle de Bortle: 6-7

NGC 3372

HaO3 process using the 294mc Pro

Optolong L-Extreme filter

Ed72

2hours of 5 minute integration

Melbourne Australia

SVQ-100 f/5.8

ZWO1600MMC-Cool

Xagyl 2" filter wheel

Optolong L-eNhance LPF

Badder RGB

CGX

SV70T / ZWO 174 MM / PHD2 Guiding

Captured in Sequence Generator Pro

Post Processing: Image Plus 6.5

10 X 300 sec Low gain each RGB

Focus: SG-Pro every 3Rd Frame / Bahtinov Mask Pre focus

SKY:2/5 Flat was not added because of very light clouds and a bad moon rising W/ heavy dew.

From: Downtown Austin, Texas

Northfield, OH

Oct 21, 23, 2022

Equipment--

Telescope: Explore Scientific ED 80, field flattener (no reducer), 480mm focal length

Mount: Sky-Watcher EQ6R-Pro

Camera: ZWO ASI204MC-Pro

Guide scope: Williams Optics 50mm guide scope

Guide camera: ZWO ASI120MM-S

Software: NINA, PHD2

Imaging--

Lights: 46x300s

Darks, Flats, DarkFlats, Bias: assorted

Sensor temp: -10.0

Filter: Optolong L-Pro

Sky: Bortle 6 (nominal)

Post processing--

Software: PixInsight, Photoshop

IC 5068 è una nebulosa a emissione , la meno fotografata delle due più famose " compagne " nebulose Nord America e Pellicano , infatti è chiamata anche Nebulosa " Abbandonata "

Telescopio SW Newton 200/1000 PDS @950 riduttore TS, Camera Qhy294c pro guida phd2 con Asi 224, mont. Eq6r pro, light 223 da 120" tot.7 h e 26 minuti, filtro Optolong L-QEF 2" , software di acquisizione N.I.N.A. stacking DSS elab. Pixi + Photoshop.

Ripresa del 15 e 17 Giugno 2024

è un nebulosa ad emissione molto estesa che si trova nella costellazione dello Scorpione distante all'incirca 450 anni luce

Lavoro a 6 mani scattata in 3 sere a monte ceraso con Andrea Zullino e Giuliano Fiorentini usando 3 ottiche differenti Askar acl 200mm, Vixen fl55ss e evoguide 50ed spianato a 260mm con 3 Zwo 2600 mc.

——— STRUMENTAZIONE ———

Telescopio: Askar acl200 Vixen Fl55ss Evoguide 50ed flattener 260mm

Camera: Zwo Asi 2600 mc duo, zwo 2600 mc

Montatura: Zwo Am5

Filtro Optolong L-pro

Software d'acquisizione Sgpro

————— FOTO ————

temp 0 con dark, flat e darkflat

180 x 300s

————— ELABORAZIONE ———

Pixinsight

Photoshop

Scorpius has a number of globular clusters in the area between Antares and its "claws" - M 80 (NGC 6093) is pretty close to the center of that region.

Shot with LRGB filters from my backyard in Long Beach, CA.

L: 21 20 s exposures

R: 30 60 s exposures

G: 30 60 s exposures

B: 31 60 s exposures

All taken with an Atik 414-EX mono camera on a Celestron Edge HD 925 at a focal length of 1530 mm. LRGB filters are from Optolong.

Pre-processing in Nebulosity; registration, stacking, channel combination, and processing in PixInsight; final touches in Photoshop.

Waxing Gibbous Moon (72%)

5 min AVI video processed in PIPP (Planetary Imaging PreProcessor) using 25% best images; 1,767 images processed in AutoStakkert using 1000 best images; Deconvolution in Astra Image; High Pass sharpening in Photoshop, final edit and export in Lightroom Classic.

-------------------------------------------------------

Location: Montclair, California, USA (Bortle 8)

Date: January 11, 2022

Moon: Waxing Gibbous (72%)

Camera: ZWO ASI533MC Pro

Telescope: William Optics ZenithStar 61II APO f/5.9

Flattener/Reducer: William Optics FLAT61A Field Flattener

Filter: Optolong L-Pro 2”

Mount: Sky-Watcher EQ6-R Pro

Guide Camera: ZWO ASI120MM Mini

Guide Scope: William Optics UniGuide 32 f/3.75

Camera Settings: Gain 100 | f/5.9 | 5 ms

Acquisition: 5 min video

Software: ZWO ASIAIR PRO, PIPP, AutoStakkert!, Astra Image, Adobe Photoshop, Adobe Lightroom Classic

-------------------------------------------------------

Copyright © 2022 Steven K. Wu Photography. All Rights Reserved.

Open Cluster M52 and the Bubble Nebula.

"To the eye, this cosmic composition nicely balances the Bubble Nebula at the upper right with open star cluster M52. The pair would be lopsided on other scales, though. Embedded in a complex of interstellar dust and gas and blown by the winds from a single, massive O-type star, the Bubble Nebula (aka NGC 7635) is a mere 10 light-years wide. On the other hand, M52 is a rich open cluster of around a thousand stars. The cluster is about 25 light-years across. Seen toward the northern boundary of Cassiopeia, distance estimates for the Bubble Nebula and associated cloud complex are around 11,000 light-years, while star cluster M52 lies nearly 5,000 light-years away."

- apod.nasa.gov/apod/ap091030.html

#M52 #SH2-162 #NGC7635

#astrophotography #astroeverywhere #astrobackyard #losmandy #losmandygm8 #zwo #asi533mcpro

Technical Info:

Optics: SGO 6" f/4 Imaging Newtonian @ 610mm FL

Explore Scientific 2" HR Coma Corrector

Camera: ZWO ASI533MC Pro

Filter: 2" Optolong L-Pro

Mount: Losmandy GM8

Guiding: QHY Mini Guide Scope + PHD2 Software

Acquisition: Sequence Generator Pro

Exposure: Light (Gain 100) - 130 subs @ 120 Seconds

Calibration: 50 Bias, 30 Darks, 50 Flats

​Processing: Deep Sky Stacker, Adobe Photoshop, Topax Denoise AI, Astronomy Action Set plug in for PS, Astro Flat Pro plug in for PS

Canon EOS RP défiltré partiel par Photomax

www.irphotomax.com/9-apn-defiltre

Sigma 105mm F1.4 DG HSM (Art)

iOptron CEM26

Filtres

Astronomik H-alpha CCD 12nm EOS Full · Optolong L-Pro EOS-R

25 - 28 décembre 2024

Images unitaires:

Astronomik H-alpha CCD 12nm EOS Full: 69×300,″(5h 45′)

Optolong L-Pro EOS-R: 176×300,″(14h 40′)

Intégration:

20h 25′

3C 273 is a quasar located at the centre of a giant elliptical galaxy in the constellation of Virgo. It was the first quasar ever to be identified and is the visually brightest quasar in the sky as seen from Earth, with an apparent visual magnitude of 12.9. It is one of the closest with a redshift, z, of 0.158. which equates to 2.4 billion light-years.

It is one of the most luminous quasars known, with an absolute magnitude of −26.7, meaning that if it were only as distant as Pollux (~10 parsecs) it would appear nearly as bright in the sky as the Sun. Since the Sun's absolute magnitude is 4.83, it means that the quasar is over 4 trillion times more luminous than the Sun at visible wavelengths (en.wikipedia.org/wiki/3C_273)

21st April 2023

Celestron RASA 8"

ZWO183mc pro

ZWO EAF

Optolong l-Pro

ZWO air pro

Sky-Watcher HEQ5 Pro

13 X120Lights Flats , Darks and Bias.

Gain 122 at -10C

Processed in Pixinsight