NGC1333

I forgot that while imaging with my widefield telescopes, I also collected some images with my Orion ED102T CF & QHY163M for Luminance, with an Optolong UV/IR cut filter. I added the 73x180second L images to the widefield RGB color version flic.kr/p/2qr6esx. The field of view is much smaller 1.1 x1.4 degrees compared to the 3x4 degrees of the widefield

NGC1333 a blue reflection nebula in the constellation of Perseus. It is estimated to be 980-1140 light-years away in the western part of the Perseus Molecular Cloud.

I imaged this over 10 different nights from the beginning of September until November this year

QHY163M & Orion ED102T CF: 73x180sec UV/IR cut

QHY128C & AstroTech AT65EDQ: 84x300sec UV/IR cut

QHY268C & WO RedCat51: 73x300sec UV/IR cut

(16h 44m)

NGC 2403 Spiral Galaxy in the Constellation Camelopardalis

NGC 2403 (also known as Caldwell 7) is an intermediate spiral galaxy in the constellation Camelopardalis. It is an outlying member of the M81 Group, and is approximately 8 million light-years distant. It bears a similarity to M33, being about 50,000 light years in diameter and containing numerous star-forming H II regions. The northern spiral arm connects it to the star forming region NGC 2404. NGC 2403 can be observed using 10×50 binoculars. NGC 2404 is 2000 light-years in diameter, making it one of the largest known H II regions, even larger than Tarantula Nebula in Large Magellanic Cloud. This H II region represents striking similarity with NGC 604 in M33, both in size and location in galaxy.

Technical Information for Image

Telescope: William Optics Zenithstar 81 Refractor

Mount: iOptron CEM25P

Imaging Camera: ZWO ASI294MC. Gain 120. Cooled to -5C.

Filter: Optolong L-Pro

Guiding: William Optics 50mm, 200mm FL, ASI290MC camera

Exposures: 40 x 180s Bin 1x1

Capture, Guiding, Polar Alignment: ZWO ASIAIR PRO

Site: Borrego Springs, CA USA, Bortle 4

Processing: Pixinsight with Final Touchup in Photoshop CC

Messier 7 imaged from a Bortle 6 suburban backyard

One and a half hours of integration- 5 minute subs

Gain 111 offset 5

Equipment:

Redcat51/ZWO ASI 183MC/Optolong L pro/EQ6

Software

NINA/AstroPixel Processor/ Photoshop CS6/NoiseXterminator

——— STRUMENTAZIONE ———

Obiettivo: Samyang 135mm f2

Camera: Zwo Asi 294 mc color pro

Montatura: Skywatcher AZ-EQ5

Autoguida: Zwo mini guide con zwo asi 224mc

Filtro: Optolong L-extreme

Software d'acquisizione Sgpro

————— FOTO ————

temp 0 con dark, flat e darkflat

300s x 302scatti

—— ELABORAZIONE ——

Pixinsight

Photoshop

Tele Vue 85

Tele Vue 0.8x reducer/flattener

Optolong L-pro

ZWO ASI533MC Pro

Skywatcher AZ-EQ5

Guiding ZWO ASI120MC-S + William Optics UniGuide 32mm

Nebulosity4

PHD2

PixInsight

Photoshop

32x300" lights dithered

Calibrated with dark and bias frames

Moon 75% illuminated

Cairns, Australia

Bortle 5

● Object specifications:

 ► Designation: C26 | NGC 4244

 ► Object type: Galaxy

 ► Stellar coordinates:

  -Ra: 12h 17m 31.25s.

  -DEC: +37° 48′ 18″.

 ► Distance: 13M Ly.

 ► Constellation: Canes Venatici.

 ► Magnitude: 10

● Gear:

 ► Telescope: SW 200/1000 F5

 ► Mount: IOptron CEM60-ec

 ► Camera: Canon EOS 700d astrodon

 ► Autoguiding: guidescope 50mm microspeed + ZWO asi

  120mm

 ► Other optic(s): Baader mpcc mk3 coma corrector

 ► Filter(s): Optolong L-pro 2"

● Softwares:

 ► Imaging: APT ( AstroPhotography Tools )

 ► Autoguiding: PHD guiding 2

 ► Preprocessing: PixInsight

 ► Processing: PixInsight

● Data acquisition:

 ► 68 X 300 sec, total 5H34

 ► ISO 800

 ► Date(s): 05/03/2022

Reflector Takahashi FC76DCU

Mount Takahashi EM 200 Temma 2

ZWO Asi 2600MC Pro + DO + Azi 290 mini

Optolong L-Pro Filter.

DOF 10/10/10

Process RVB with SIRIL.

One single shoot 60" integration

Added few more hours to my last image, then cropped it.

Pentax K-1 & Lacerta 72/432

Optolong L-eXtreme filter

Monoceros R2 is a molecular cloud in our Milky Way about 2700 light years away. New stars are forming in the dark dust lanes.

This image is an integration of multiple 240 second exposures shot separately with Optolong R, G and B filters. Total integration time for each colour channel was over 10 hours. The camera was a QHY163M and the scope was a William Optics FLT110 with Flat4, mounted on a Skywatcher AZ EQ6 GT. Image sequencing was managed by SGP and PHD2, post-processing was carried out in PixInsight with a final run through Topaz DeNoise AI.

Observed from Prachinburi, Thailand.

Bonjour,

Je vous présente la nébuleuse de la rosette dans la constellation de la Licorne, Elle se situe à environ 5400 années lumières.

La prise de vue a été réalisée sous 3 nuits de Lune quasi pleine, le filtre L-extreme de Optolong est très efficace pour ça. Cette image est donc une composition HOO.

Au niveau matériel:

Lunette Skywatcher Equinox 80ED (80/500)

Monture Orion Atlas EQ/G

Réducteur de focale 0.8

Caméra Omegon.com Vetec533C

USB FOCus V3

Filtre optolong L-extreme

Guidage:

Chercheur 9X50

Caméra QHY 5 Lii

Logiciel d'acquisition : N.IN.A

Image:

Jour 1: 30 images de 5 minutes (Lune à 100%)

Jour 2: 31 images de 5 minutes (Lune à 97 %)

Jour 3: 32 images de 5 minutes (Lune à 93%)

Traitement images: SIRILIC+SIRIL+Photoshop

Camera: Moravian G2 8300

Filters: 31mm unmounted Optolong

Optics: RC GSO 8" f/8

Mounts: Takahashi EM200 Temma 2M

Autoguider: Magzero QHY 5L II, OAG 9mm TS, Phd guiding

Frames: L: 14x600 sec - RGB: 6x600 sec each, bin 2 -25°

Processing: Pixinsight, Photoshop

* Setup:

Telescope: Refractor Orion ED80

Focal Length: 600mm

Camera: QHY163M

Mount: SkyWatcher HEQ5 Pro

Filters: LRGB Optolong

*Exposure:

L: 3 hours (subs 300s) bin1x1

R: 0.6 hours (subs 120s) bin2x2

G: 0.6 hours (subs 120s) bin2x2

B: 0.6 hours (subs 120s) bin2x2

Total: 4.8 hours

(Processed in HOO palette, see original version flic.kr/p/2oBDNS1)

I captured the Elephant Trunk Nebula in Cepheus. This nebula is a concentration of interstellar gas and dust. The bright rim is the surface of the dark cloud being ionised by the bright blue start HD 206267.

Captured with my William Optics FLT 91 and 6AIII 0.8x reducer over a 3h30m session.

ZWO 2600MC Pro camera, Optolong L-Ultimate 2" filter.

Processed with PixInsight in HOO palette + Affinity Photo 2.

More details in astrobin: astrob.in/spvbzl/B/

The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology. The cluster contains hundreds of stars, of which only a handfull are commonly visible to the unaided eye. The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 425 light years away in the constellation of Taurus.

WO GT81

WO Flat 6AIII

ASI2600MC Pro

ASI Air Pro

ZWO EAF

HEQ 5 Pro

Optolong L-Pro filter

98 x 300s lights, 40 darks, 50 flats, 50 dark flats

Gain 100, -10DegC

Da qualche anno pensavo di cambiare il rifrattore Scopos TL805, compagno di tante avventure sotto cieli stellati; quindi dopo tanti dubbi, rinvii e prediligendo un telescopio con un rapporto focale il più basso possibile, visto che l'Inquinamento luminoso spesso mi costringe ad utilizare filtri a banda stretta, la mia scelta è caduta sul tripletto apocromatico Askar 103APO con il suo riduttore 0.6X.

E la sua prima luce nel mese di dicembre non poteva che essere la "Grande nebulosa di Orione" nota anche come "M42" . Con il rapporto focale f/4 è stato bello riuscire e scorgere anche le nubi interstellari più deboli. Mi ritengo molto soddisfatto di questo primo risultato e mi auguro il primo di una lunga serie.

Buon Natale a tutti.

___________

For some years I had been thinking about changing the Scopos TL805 refractor, companion of many adventures under starry skies; so after many doubts, postponements and preferring a telescope with a focal ratio as low as possible, given that light pollution often forces me to use narrow-band filters, my choice fell on the Askar 103APO apochromatic triplet with its 0.6X reducer.

And its first light in December could only be the "Great Orion Nebula" also known as "M42" . With the focal ratio f/4 it was nice to be able to see even the faintest interstellar clouds. I am very satisfied with this first result and I hope for the first of a long series.

Merry Christmas to everyone.

Google translator

______________

Optic: APO Refractor Askar 103APO + 0.6X

Camera: ZWO ASI533MC-Pro

Mount: Sky Watcher HEQ5 Synscan

Seeing: 3-4 (scala Antoniadi)

Filter: Narrowband Optolong L-eNhance 2"

-104x180s 121gain / 35 dark /21 flat / 18 darkflat /100 bias

-18x30s 121gain / 20 dark /100 bias

t° sensor: -10°C

Date: 10+16/12/2024

Integration: 5h 12min

Temperature: 7°C (media)

location for : Biancavilla -Catania-(Italy) 515m slm (Bortle 5-6)

Acquisition: NINA, PHDGuiding

Processing: DSS, SIRIL, PS, GraXpert.

Celestron 9.25" + Celestron f/6.3 Reducer + ZWO ASI533MC + Optolong L-Pro

AZ-EQ5

115x60" lights

Calibrated with dark and bias frames

Nebulosity4

PixInsight

Photoshop CC

Cairns, Australia

Bortle 5

Camera: QHY294C Pro

Scope: SW 200/1000 Newt modified

Mount: SW EQ6-R Pro

Filter: Optolong L-Pro 2"

Expo: 62 x 300s Light + Dark, Flat, Bias

Controlled by StellarMate

Processed in PixInsight and Photoshop LR

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 36x10min + RGB 15x5min (all 1x1)

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

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

date: 10 Mar - 8 Apr 2021

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 30x10min + RGB 20x5min (all 1x1)

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

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

date: 24 Jul - 18 Aug 2020

Gesso Valley, in North West of Italy, is one of my best places, even because I started coming here when I was a child.

Mount Argentera is the simbol of this valley: with a height of 3297m is the higher of Alpi Marittime.

Last year I checked that it was possible to have a good alignement of Milky Way Bow and Mount Argentera from Fremamorta Lakes, at the hight of 2375m, that are just in front. And fortunately there is also a nice bivouac to spend the time before and after shooting.

So at the end of June I went there with my backpack full of stuff and an hike of 2 hours.

For this panoramic picture I did 20 shots for the sky and 20 shots for the frontground.

The red light pin you'll see is from Remondino Refuge, one of the most famous refuges of the area.

It's been a year since I have done astrophotography but the last 2 days of cold and crisp weather has provided a perfect opportunity to get out and image again. This image of the Rosette Nebula (also known as Caldwell 49) was taken from the garden in Aberaeron over two successive nights. The nebula is a H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way galaxy. The open star cluster NGC 2244 (Caldwell 50) at its centre is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter. The cluster and nebula lie at a distance of 5000 light-years from Earth and measure roughly 130 light years in diameter (to put this in context, light from the sun takes just 0.000015561 light years, or 8 minutes, to reach Earth!) The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10000 solar masses.

This image comprises 88 x 3 minute images stacked and processed to generate a final image.

William Optics GT81

William Optics Flat 6AIII

ZWO ASI2600MC Pro

ZWO ASI Air Pro

Skywatcher HEQ 5 Pro

Optolong L-eXtreme filter

ZWO EAF

88 x 180s lights, 40 darks, 50 flats, 50 dark flats at gain 100 and cooled to -10C.

Stacked in DSS and processed in Pixinsight, PS and LR

Explore 08 March 2024

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: RGB 15x5min (1x1) + Ha 17x30min + O3 20x30min (2x2)

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

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

date: 3 Oct 2020 - 3 Apr 2021

camera: ZWO ASI6200MM Pro with EFW 7x2"

filters: Optolong LRGB and Chroma 3-nm Ha/O3

telescope: TEC 140 f/7

mount: 10Micron GM2000 QCI

guider: ZWO ASI120 mini on 50-mm f/4 guidescope

exposure: L 30x10min (1x1) + RGB 16x5min (2x2) + Ha 22x20min (2x2)

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

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

date: 9 - 17 Jul 2021

The Cone Nebula is located in the constellation Monoceros, the Unicorn. It's pointing towards the prominent Christmas Tree Cluster (so named because it looks like a Christmas tree when viewed). It was discovered by William Herschel on December 26, 1785.

Telescope: William Optics ZenithStar 81 Refractor

Mount: Losmandy GM811G

Imaging Camera: ZWO ASI 2600MC Pro

Filter: Optolong L-eXtreme Dual-band Filter

Site: Elk Grove, California, USA Bortle 6

Processing: DSS, siriL, Photoshop 2020, DXO PhotoLab 4

Calibration Files: None

Guiding: None

RCW-85, Centaurus, taken with Astro-Phyisics 155EDF, ZWO ASI 2600 mc, AP 1200, Optolong L-Ultimate, 40x420".

Location : Tivoli Southern Sky, Namibia.

The North America Nebula (AKA NGC 7000 and Caldwell 20) is on the left and gets its name on account of its similar shape to North America with its prominent Gulf of Mexico. The Pelican nebula is to the right, again getting its name due its pelican like appearance. They sit approximately 1600 light years from Earth in the constellation Cygnus and span a combined distance of approximately 100 light years.

Equipment:

William Optics GT81 scope, Flat 6AIII field flattener, ZWO ASI2600MC Pro camera, Optolong L-eNhance filter, Skywatcher HEQ5 Pro (guided), ASIAir pro.

Frames

88 light, 180 sec, gain 100

40 dark, 40 flat, 80 bias

Software

Stacked in Deep Sky Stacker and processed in Photoshop with final touches in Lightroom

At the end of August I went to Moncenisio lake for a Milkyway photographic session.

i really love this place and that night was absolutely cool!

The Elephant's Trunk Nebula (IC 1396) in the constellation Cepheus.

Rio Rancho NM Bortle 5 zone, A bunch of days in June, 2022

William Optics Redcat 51

ZWO 183mm pro

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

Optolong h-alpha and OIII filter

ZWO ASI Air Pro

Sky-Watcher HEQ5

72 X 300s Ha

44 X 300 OIII

60 X 300 SII

Gain 111 at -10C

Processed in DSS and PS

Messier 31 Andromeda Galaxy

Reflector Takahashi FC76DCU

Mount Takahashi EM 200 Temma 2

ZWO Asi 2600MC Pro + DO + Azi 290 mini

Optolong L-Extrem Filter.

DOF 10/10/10

Process RVB with SIRIL.

5,5h integration

Camera: QHY294C Pro

Scope: SW 200/1000 Newtonian modified

Mount: SW EQ6-R Pro

Filter: Optolong L-Pro 2"

Expo: 35 x 300s Light + Dark, Flat, Bias

Controlled by StellarMate

Processed in PixInsight and Photoshop LR

LBN 420 è una nebulosa molecolare oscura nella costellazione della Lucertola, vicina alla più conosciuta Nebulosa Gecko.La Nebulosa è scarsamente studiata, tanto da non avere un nome ufficiale e da essere priva di ricerche scientifiche, il che la rende un mistero per gli astronomi. Si stima che sia a circa 1.700 anni luce di distanza, basandosi sulla posizione del vicino complesso Lacerta OB1. In basso si può notare la NGC 7223 una galassia a spirale barrata.

Sky-Watcher Newton 200/1000@960

ToupTek Astronomy Cameras ATR2600C

Light 175*300"

Optolong L-QEF

Guida Phd2 tubo 60/240 e ASI 224

Sky-Watcher EQ6-r pro

Acquisizione N.I.N.A.

Somma DSS elab. Pixinsight Photoshop

Ripresa il 21/22 Settembre 2025

Sannicola ( LE ) Italy

SQM 19.48

3x5x40 s sky 3 single shot pano 20 s foreground Nikon D800 full spectrum mod. Sigma Art 28 mm f/1,8 ISO 1600 Optolong L-Pro clip in filter

10 hours RGB plus 3 hours dual band data over 3 nights 4-6th April 2021

Skywatcher 200pds

Altair Astro 294c

Optolong L-eXtreme dual band filter

Stacked in Astropixelprocessor

Processed in PixInsight and Photoshop

DATOS DE CAPTURA

TELESCOPIO: TS DOBLETE APO FPL 53 60/290

MONTURA HEQ5 SW

CAMARA :ASI 183 MM PRO

FILTROS: OPTOLONG LRGB 1.25

RUEDA DE FILTROS MINI 1.25

OAG: ZWO

CAMARA DE GUIADO QHY5/II MC

MINI PC

ESCRITORIO REMOTO CON IPAD

70 LIGHT 120sg LUM BIN 1X1 TEMP -10

30 LIGHT 180sg RGB BIN 1X1 TEMP -10

25 TOMAS CALIBRACION DARK, FLATS, DARKFLATS

Messier 78 Reflection Nebula in the Constellation Orion

Messier 78 or M 78, also known as NGC 2068, is a reflection nebula in the constellation Orion. It was discovered by Pierre Méchain in 1780 and included by Charles Messier in his catalog of comet-like objects that same year.

M78 is the brightest diffuse reflection nebula of a group of nebulae that includes NGC 2064, NGC 2067 and NGC 2071. This group belongs to the Orion B molecular cloud complex and is about 1,350 light-years distant from Earth. M78 is easily found in small telescopes as a hazy patch and involves two stars of 10th and 11th magnitude. These two B-type stars, HD 38563 A and HD 38563 B, are responsible for making the cloud of dust in M78 visible by reflecting their light.

(Wikipedia.org)

Technical Information for Image

Telescope: William Optics Zenithstar 81 Refractor

Mount: iOptron CEM25P

Imaging Camera: ZWO ASI294MC. Gain 120. Cooled to -5C.

Filter: Optolong L-Pro

Guiding: William Optics 50mm, 200mm FL, ASI290MC camera

Exposures: 6 x 240s Bin 2x2

Capture: APT

Guiding: PHD2

Polar Alignment: SharpCap Pro

Site: Borrego Springs, CA USA, Bortle 4

Processing: Pixinsight with Final Touchup in Photoshop CC

M45 Pleaides. First image of 2019! Scope: TSAPO65Q + TeleVue NPR-1073 0.8X Reducer. Camera: ZWO ASI294MC Pro + Optolong L-Pro Filter. Mount: StellarDrive 6R. 30 x 4 Mins. Processed in Astro Pixel Processor. Finished in Adobe CC.

Barnard 228 is part of the Lupus molecular dark cloud. Lying in the constellation of Lupus B228 is one of the nearest star-forming regions along with Ophiuchus, Taurus-Auriga, Corona Australis, and Chamaeleonearns. The distance ranges from 326 to 978 ly away.

Luminance: CCD Moravian G2 8300 - 135mm Samyang lens f/2 @f/3.5

Frames: L: 10X600sec Bin1 -25°

Filters: 31mm unmounted Optolong

Colors: Canon 600D - 135mm Canon lens f/2,8 @f/3.2

Frames: 32X180 sec. ISO 800

Mount: Celestron CGE PRO

Autoguider: ZWO ASI290MM mini on ZWO 30 F/4, Phd guiding

Processing: Pixinsight, PS

APT automation

SQM: 21.88

IC410, NGC2244 and NGC2264 with the ES 80mm ED triplet refractor and Zwo ASI294MC Pro cooled color camera

Was trying out the focuser from Zwo EAF, Works flawless with SharpCap Pro

Had high thin clouds, tracking soo soo, better on NGC2244

Optolong L eNhance 2' filter

#SharpCap Pro, PoleMaster

Ioptron i45 Pro EQ mount, PHD2 guiding

Orion 60mm guidescope SSAG

220 Gain offset 10, -10c cooling,

IC410 was 90 minutes, 1 minute exposure each

NGC2244 was 90 minutes, 1 minute each

NGC2264 was 15 minutes, 1 minute each

50 darks 50 flats and 50 bias frames

For NGC2264 was 8 darks, 8 flats and 8 bias frames

Astro Pixel Processor and PS

Axeitos Dolmen, 4000 BC

5x60s ISO 1600 for the sky & 6x30s ISO 3200 for the foreground

Nikkor D600 full spectrum Optolong L-Pro clip filter, Nikkor AI 28mm @f/5,6, Softon filter

In this image the major areas of nebulosity of the constellation Sagittarius can be seen, the Lagoon Nebula (M8) the bright reddish one in the center, the Trifid Nebula (M20) the red and blue one towards the upper left, and last but not least NGC 6559 which is the red/blue somewhat dimmer area of nebulosity below the Lagoon Nebula.

Another prominent feature('s) is the dust-lanes and yellow clouds of the central bulge of the Milky Way towards the right. There are also a couple Globular Clusters, NGC 6544 just below and to the right of the Lagoon Nebula, and NGC 6553 which is further to the bottom right appearing in this image as a fuzzy bright spot in the clouds of the Milky Way. Finally there is the open cluster M21 down and a little to the left of the Trifid Nebula.

Here's some links with info on the objects in this image.

Lagoon Nebula (M8): en.wikipedia.org/wiki/Lagoon_Nebula

Trifid Nebula (M20): en.wikipedia.org/wiki/Trifid_Nebula

NGC 6559: en.wikipedia.org/wiki/NGC_6559

NGC 6544: gclusters.altervista.org/cluster_4.php?ggc=NGC+6544

NGC 6553: gclusters.altervista.org/cluster_4.php?ggc=NGC+6553

M21: en.wikipedia.org/wiki/Messier_21

Technical Info:

8/6-7/2016 (wide-field)

No Filter: 12x300" Light @800ISO

Optolong L-Pro Filter: 12x300" @800ISO

20x Dark20x Bias

Camera: Canon 6D Hutech Mod UV/IR Cutoff Mod no cooling

Scope: William Optics Star 71 Astrograph

Location: Los Padres National Forest, CA

Trifid Nebula Detail:

6/7/2014

15x 280" @640ISO Lights

10x Darks 15x Bias 15x Flats

Camera: Canon 6D (unmodified)

Scope: Celestron Edge HD 8

Focal Reducer: .7x Edge HD 8 FR

Location: Charlton Flats, CA

Lagoon Nebula Detail:

8/2/2014

7x Lights 600" @640ISO

10x Darks, Bias, Flats

Camera: Canon 6D (unmodified)

Filter: Hutech IDAS LPS

Scope: Celestron Edge HD 8

Focal Reducer: .7x Edge HD 8 FR

Location: Lockwood Valley, CA

Capture/Processing for all:

Capture/Guiding Software: Backyard EOS PHD/PHD2

Stacking: Deep Sky Stacker

Processing: Photoshop CC, Registar, Straton

IC 1805 ,nota anche come Nebulosa Cuore o con la sigla W4, è una nebulosa diffusa in associazione ad un ammasso aperto, visibile nella costellazione di Cassiopea, verso il confine con la Giraffa.

E' visibile circa 6 gradi a sud-est della stella ε Cassiopeiae, ma si può individuare anche partendo dall’Ammasso Doppio di Perseo e spostandosi di circa 4-5 gradi in direzione nord-nord-est; Per poterla individuare occorre un telescopio con un grande diametro, non tanto per le dimensioni, dato che la nebulosa è abbastanza estesa, quanto per la sua debolezza. L’intero complesso di nebulose visibili in quest’area si presenta circumpolare dalla gran parte delle regioni dell’emisfero boreale.

Si tratta di una regione HII molto estesa, la cui distanza è stimata sui 7500 anni luce da noi; la sua caratteristica principale è la presenza di due grosse aree apparentemente vuote, di diverse dimensioni, che rendono la nebulosa simile ad un “cuore”. Al suo interno si trova un sistema di piccoli ammassi aperti poco concentrati, responsabili della ionizzazione della nebulosa. Il più notevole di questi è Melotte 15, che contiene alcune stelle circa 50 volte più massicce del Sole, più altre più piccole ed un microquasar espulso milioni di anni fa.( Melotte 15 visibile al centro della foto).

Questa e la vicina IC 1848 formano un grande complesso nebuloso noto come complesso W3/W4/W5 o “Cuore e Anima”; il “cuore” è IC 1805 in foto , mentre l'”anima” è rappresentata da IC 1848, prossime riprese !!

W4 ha una struttura a guscio ed è la più grande fra le tre nebulose principali del complesso; al suo centro si trova l’ammasso aperto IC 1805, designazione con cui talvolta viene indicata anche l’intera nebulosa ad esso associata. Di fatto IC 1805 costituisce la parte centrale della grande associazione Cassiopeia OB6; le stelle più brillanti dell’ammasso sono delle nane blu, 24 delle quali possiedono una massa superiore a 10 M☉, con un’età compresa fra 1 e 3 milioni di anni. Fra queste stelle blu ve ne sono 9 di classe spettrale O, racchiuse entro un raggio di circa 10 pc, mentre il raggio totale dell’ammasso aperto è di circa 18 pc. Di queste stelle di classe O, si è scoperto tramite studi sulla velocità radiale e della curva di Gauss che 6 sono stelle doppie; fra queste ve n’è una, HD 15558, che pare essere una stella tripla.

Nei pressi della nebulosa sono attivi degli episodi multipli di formazione stellare; tramite le immagini ottenute nell’H-α è stata scoperta una superbolla in espansione formata da idrogeno ionizzato dell’estensione di 1200 pc ed emergente dal piano galattico, la cui età, di circa 10-20 milioni di anni, è un’indicatrice del fatto che si sia originata a seguito dell’azione del vento stellare di una prima generazione di stelle massicce. Da questa regione emergono oltre 30 nubi molecolari e globuli dispersi nello spazio circostante, come visto sopra, la cui presenza suggerisce che una volta nella regione si trovava una nube molecolare gigante in seguito dissoltasi a causa di un primo intenso episodio di formazione stellare.

Dati di scatto :

light 48x300 "

dark 19

flat 29

dark flat 7 bias 29

Strumentazione :

Celestron C11 , Hyperstar Starizona V3 , cam Zwo Asi 2600 Mc , filtro optolong l-enhance , montatura equatoriale Eq6 R Pro , guida SVbony 60/240 , Asi 120 mm mini .. Asi Air pro , Pixinsignt , Lightroom ..

Nébuleuse de l'Hippocampe

155 poses de 300s/gain100/-10°

asi 2600mc pro

EDPH 94/414

ioptron CEM26

asiair pro

optolong L prp

siril,pixinsight,photoshop.

132x300s @800ISO

Canon Eos 600D

Optolong L-eNhance

Vixen R200SS

GPU coma corrector

Takahashi EM200

Primalucelab Eagle

Nébuleuse du Voile Est ou Grande Dentelle du Cygne dans la constellation du Cygne.

Mosaïque de 2 panneaux.

Matériel :

Newton sw 150/750 pds

Heq5 pro

Asi533mc pro

Correcteur/réducteur 0.95x

Filtre Optolong L-extreme

Guidage diviseur optique + asi290mm mini

Focuseur Eaf v2

Asiair pro

Exifs :

Panneau de gauche : Lights 49 x 300s, gain 200, 0°C

Panneau de droite : Lights 31 x 300s, gain 200, 0°C

Darks 100

DarksFlats 400

Flats 15

Prétraitement/traitement : Pixinsight

Post : Photoshop

Seeing varied between 4 and 4.5 out of 5 this night, and transparency was decent. Jupiter was at an altitude of 39° and a distance of 601 million km.

Separate R, G, and B SER files were captured between 0626 and 0647 UTC. Each SER was 30 s in length. This produced 7 usable stacks for R images, 7 for G images, and 6 for B images. Each stack was 175 frames for R, 200 frames for G, and 230 for B. The images for each color band were de-rotated in WinJUPOS, and the resulting single R, G, and B images were compositied and derotated in WinJUPOS.

Telescope: Celestron Edge HD 925

Camera: ZWO ASI120MM

Filter wheel: ZWO EFW

Filters: Optolong RGB set for CCD/deep sky

Captured with FireCapture

Processed in AutoStakkert and PixInsight

CM longitudes:

CM I: 342.5° CM II: 133.1° CM III: 317.2°

Among the astrophotographs I made, this is, at the moment, the one with the longest total exposure time, totaling 19 hours and 35 minutes (captured in four nights).

"The beautiful spiral galaxy Messier 83 is located in the constellation Hydra and is also known as NGC 5236 and as the Southern Pinwheel galaxy. Its distance is about 15 million light-years, being about twice as small as the Milky Way". Source: eso.org

Sky-Watcher 203mm F/5 EQ5 reflector with Onstep and electronic focuser ZWO EAF, Canon T6 (primary focus) modified, Optolong L-eNhance filter (in part of the frames). 50mm guidescope with ASI 290MC. 235 light frames (116x300 "ISO 800 + L-eNhance: 119x300" ISO 1600), 40 dark frames, 64 flat frames. Processing: DeepSkyStacker and PixInsight.

@LopesCosmos

www.instagram.com/lopescosmos

telescopius.com/profile/lopescosmos

Redcat51

AZ-EQ5

ZWO ASI533MC

Optolong L-pro

43x180"

Calibrated with darks and bias frames

Nebulosity4

PHD2

PixInsight

Photoshop CC

NGC 7822 is a young star forming complex located 2,935 ly from earth, and NGC 7762 is an open cluster about 2,400 ly away. Both are in the constellation Cepheus.

Rio Rancho NM Bortle 5 zone

April 28, 2022

William Optics Redcat 51

ZWO 183mc pro

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

Optolong L-eNhance filter

ZWO ASI Air Pro

Sky-Watcher HEQ5

40 X 300s lights ; with darks bias dithering

Gain 111 at -10C

Processed in DSS and PS

L'Amas NGC 1502 et l'astérisme de la cascade de Kemble (Kemble 1) sont situés dans la constellation de la Girafe. L'astérisme est formé par l'alignement d'une vingtaine d'étoiles comprises entre la cinquième et la dixième magnitude, et qui s'étale dans le ciel sur un diamètre apparent équivalent à cinq pleines lunes (wikipedia).

Kemble's Cascade is an asterism located in the constellation Camelopardalis, next to the star cluster NGC 1502.

Acquisition:

Nikon D5300 + Zenithstar 73

iOptron CEM26 + iPolar

Filtre Optolong L-Pro

ZWO ASI224MC + WO Uniguide 120mm

Astro Photography Tool (APT) & PHD2

Best 35 de 42 x 3min -- ISO400

Traitement/processing :

Siril & Gimp

AstroM1

(rsi1.2)

M42 Orion Nebula - very short quick session! . Scope: Altair 102ED-R + Lightwave 0.8X Reducer. Camera: ZWO ASI294MC Pro + Optolong L-Pro Filter. Mount: StellarDrive 6R. 3 x 60 Seconds. Processed in Astro Pixel Processor. Finished in Adobe CC.