The Rosette Nebula (also known as Caldwell 49) is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) 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 5,000 light-years from Earth and measure roughly 130 light years in diameter. 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 10,000 solar masses.

William Optics GT81

William Optics Flat 6AIII

ZWO ASI2600MC Pro

ZWO ASI Air Pro

Skywatcher HEQ 5 Pro

Optolong L-eNhance filter

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

Stacked in DSS and processed in PS and LR

Explore 26 December 2020

Reprocess of previous image

2 Cameras, 2 Telescopes

6/24/20

Setup#1

Camera: QHY163M

Telescope: 11" Celestron Edge HD w/V4 Hyperstar

Mount: Orion HDX-110

Optolong LUM filter: 45x30sec

Setup#2

Camera:QHY128C

Telescope: Astrotech AT65EDQ

Mount: Piggybacked on Setup#1

9x300sec

Telescope: Takahashi Mewlon 210 mm

Barlow: APM 2" coma correcting 1.6X Komakorr

Equivalent Focal lenght: 3.864 mm

CMOS: ZWO ASI 174 Color Cool

Filter: Optolong Red 50,8 mm

Mount: iOptron CEM60

Date: Novembre 5, 2022 Hours: 22:06 Local Time

Pose: 346 sommate su 2.308 riprese a 53 fotogrammi al secondo

Seeing 4 Antoniadi, transparency of the sky 8, turbulence

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 35x10min + RGB 20x5min (all 1x1)

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

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

date: 29 Dec 2019 - 1 Jan 2020

M13 Great Globular Cluster in Hercules

Had a few cloudless hours to grab an easy target. It is the first DSO I have imaged since November. Either my sky conditions have really deteriorated since November or there were some high thin clouds. Either way it was good to give the gear a run.

I tried something different and shot 200 Luminance filter subframes only 5 seconds each. I combined this with some RGB I shot in 2013 from my QHY23M and AT65. The large number of subframes really seemed to produce a much cleaner image. In a few months when it is clear again I will give 100+ subs a try again

Telescope:11" Celestron EdgeHD w/Hyperstar(F2)

Camera:QHY163M

Mount: Orion HDX-110

Optolong LUM filter

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

EQ6-R Pro

36x180" lights

No calibration frames

Nebulosity4 for Mac

PixInsight

Photoshop CC

Cairns, Australia

Bortle 6

Also known as Sharpless 290, this object is a large but faint planetary nebula, estimated to be about 2000 light years distant.

This image is a combination of data captured using Antlia narrowband Hα and Oiii filters and Optolong RGB filters for the stars. I used a William Optics FLT110 telescope and QHY163M camera. Post-processing was carried out in PixInsight.

The Rosette Nebula, is an H II region located in the constellation of Monoceros. The open cluster NGC 2244 is closely associated with the nebulosity, the stars of the cluster having been formed from the matter within the nebula. It lies around 5,200 light years distant.

EQ6-R-PRO

Esprit 150mm APO

QHY294C Gain 2900 Offset 60 -20C

Optolong L-eNhance narrowband filter

2 x 600sec

12 x 900sec subs

Processed in Pixinsight and Photoshop 6

Telescopio: Celestron C8 Edge HD

Lunghezza focale: 2032 mm

Montatura: iOptron CEM60

Filtri: Optolong Blue CCD 50,8 mm

Data: 24 Aprile 2021 Ore: 21:04 Tempo Locale

Pose: 204 sommate su 2.038 riprese a 164 fotogrammi al secondo

Seeing: 3 Trasparenza: 8

Seeing 3 Antoniadi, trasparenza del cielo 8

Mare Crisium (Sea of Crises) is one of the Moon's great "seas", a vast impact basin that later filled with lava. It formed from a collision between the Moon and an asteroid between 4.55 and 3.66 billion years ago. Its diameter is 345 miles, roughly the distance between Bridgeport and Dauphin Island.

Mare Crisium is visible to the human eye in near the Northeastern edge of the Moon. It is prominent in photographs. In this image, it is soon to be engulfed in the lunar night.

Mare Crisium will soon be visited by small unmanned landers as part of NASA's CLPS (Commercial Lunar Payload Services) program. A contract has been awarded to Firefly Aerospace for a 2023 landing.

Best 20% of 9810 video frames used. Video was captured at 163 fps. Seeing was above average, 4/5.

Pre-processing in PIPP. Stacking with Auto Stakkert!3. Wavelets and histogram adjustments with Registax 6. Final toning and resizing with Camera RAW and Photoshop CC 2021.

Celestron Edge HD8 telescope

ZWO ASI 290MM camera

Optolong IR Pass (685nm) Filter - 1.25"

Celestron Advanced VX Mount

M42

Skywatcher Heq5pro

WO Redcat 51apo

ZWO ASI 183MC pro

Optolong L-Enhance

97x180sek

Gain 100

Data - 28/06/2021

Hora - 20:25 ~ 21:54 local (-3 UTC)

Lat - 7,13S

Log - 34,83W

Local - João Pessoa, PB - Brasil

Bortle - Class 8

Telescopio - Sky Watcher 150mm F8

Montagem - EQ5

Motorização - On Step

Guider - SW 9x50 + SVbony 105

Câmera - Canon T3i modificada

Filtro CLS-CCD Clip Optolong

ISO - 1600

Light - 66 x 90s (66 min)

Flat - 15 x 1/1600s

Dark Flat - 15 x 1/1600s

Dark - 15 x 90s

Bias - 15 x 1/4000s

Temperatura do sensor ~ 27°C (Home made cooler)

Software Captura - APT/PHD2

Softwares Processamento - SiriL/PIX/PS

#astfotbr

In the constellation of Canes Venatici but quite close to Ursa Major’s star Alkaid lies the Whirlpool Galaxy, a beautiful interacting grand-design spiral galaxy. It is located at about 31 million light years from us and can be seen during Spring even with binoculars if the sky is dark enough.

Very prominently, this galaxy is interacting with a smaller one - NGC 5195 - the yellowish one on the right. As a result, large tidal tails are formed - those are the faint yellow structures around both galaxies.

Looking closer to M51, dark lanes in the spiral arms can be seen; what are these? They are compressed gas and dust clouds - the raw material for stars. And these new stars being formed are what makes the blue patches seen nearby.

One of amateurs astrophotographers preferred targets, the Whirlpool galaxy is, for sure, an amazing view. I hope you enjoy.

Shot at Santa Susana, Portugal on the 29th and 30th of April, 2022.

IG: @the.cosmic.arena

Technical details:

LUM: 172 x 180s (8h60), BIN1

RGB: 3 x 40 x 180s (6h00), BIN2

Telescope: TS Optics Triplet APO 800/115

Camera: QHYCCD 268M

Mount: Skywatcher AZ EQ5-GT

Filters: Optolong LRGB

Reducer: TSOptics TSFLAT 3’ 0.79x

Acquisition: N.I.N.A.

Processing: Pixinsight, Photoshop

Camera: QHY268M

Telescope: 11" Celestron Edge HD with Hyperstar V4.0

Optolong LUM-62x120sec

Camera: QHY128C

Telescope: Astrotech AT65EDQ

Optolong LUM-9x480sec

Optolong LUM-17x300sec

9 panel mosaic flic.kr/p/2pmW5ns

The Jellyfish Nebula (IC 443, Sharpless 248) is a supernova remnant located in the constellation Gemini. It lies approximately 5000 light years from Earth and can be found between the stars Mu and Eta Geminorum, at the foot of one of the celestial Twins.

The Jellyfish Nebula is a remnant of a supernova that occurred in the Milky Way between 3000 and 30000 years ago. The supernova event produced the nebula and a neutron star. The presence of the neutron star and the nebula’s location in a star forming region indicate that the remnant was created by a Type II supernova, one triggered by a rapid collapse and violent explosion of a star with a mass at least 8 times that of the Sun. The neutron star is moving away from the site at about 800000 km/h.

Photographed in my back yard.

William Optics GT81

William Optics Flat 6AIII

ZWO ASI2600MC Pro

ZWO ASI Air Pro

ZWO EAF

Skywatcher HEQ 5 Pro

Optolong L-eXtreme filter

I'm not sure what the file structure was as I deleted them leaving only the final stacked image which I didn't process for some months,

Stacked in DSS and processed in PixInsight, PS and LR

William Optics GT81

William Optics Flat 6AIII

ZWO ASI2600MC Pro

ZWO ASI Air Pro

Skywatcher HEQ 5 Pro

Optolong L-eXtreme filter

97 x 180s lights, 40 darks, 50 flats and 50 flat darks at gain 101 and -10C.

Stacked and processed in PixInsight with final touches in PS and LR.

Telescope: WO ZenithStar 81 Refractor

Mount: Losmandy GM811G

Imaging Camera: ZWO ASI 2600MC Pro

Filter: Optolong L-Extreme Filter

Site: Elk Grove, California, USA

Calibration Files: None

Guiding: ZWO ASI 174mm mini/Orion 60mm Guidescope/PHD2

No of Frames: 120

Sub Exposure Time: 240sec

Bortle Zone: Class 6

Date Taken: Nov 3 & 4, 2021

sh2-263 and vdB-38 are both nebulae located in the constellation of Orion. Sh2-263 is the red emission nebula and vdB is the blue reflection nebula. Both are located at the northern part of Orion, near the star Bellatrix

I haven't imaged a thing since early Nov 2020, nothing but clouds. March 2021 has given me a few clear nights. I'm surprised that everything still worked!

Camera: QHY163M

Telescope: 11" Celestron Edge HD w/Hyperstar V4

Mount: Orion HDX-110

3/6/21, 3/7/21, 3/13/21

LUM- 107x30sec

RED-55x30sec

GREEN-63x30sec

BLUE-43x30sec

annotated version: flic.kr/p/2kN1o5q

#Celestron

#Optolong

#QHYCCD

#Lovemyhyperstar

First look at the New Prima Luce Lab Esatto Focuser, not a cheap option but a far better option the the Skywatcher and ZWO.

104 shot 10 min each over two night

ZWO ASI071MC Pro @ -10c

Prima Luce Essato Focus ,

Optolong LeNhance filter,

Skywatcher Black DiamondED80 OTA

Skywatcher EQM35Goto

Guided PHD2, SGP

DSS, Pixinsight, Ps.

Telescopio: Takahashi Mewlon 210 mm

Barlow: Televue Powermate 2X 50,8 mm

Lunghezza focale: 4830 mm

Camera di ripresa: ZWO ASI 174 mono Cooled

Montatura: iOptron CEM60

Filter: Optolong Red CCD 50,8 mm

Focuser Primalucelab Esatto 2"

Data: 12 Febbraio 2022 Ore: 18:37 Local Time

Pose: 345 sommate su 1.500 riprese a 147 fotogrammi al secondo

Seeing: 3 Antoniadi Trasparenza del cielo: 10

The Pinwheel Galaxy (also known as Messier 101) is a face-on spiral galaxy 21 million light-years away from Earth in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781. M101 is a large galaxy, with a diameter of 170,000 light-years. By comparison, the Milky Way has a diameter of between 100,000 and 120,000 light-years.

Optic: RC GSO 8" - Astro Physics telecompressor 0.67X

Mount: Ioptron CEM60 HP

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

Camera: Moravian G2 8300 Filters: 31mm unmounted Optolong

Frames: L 15X420sec - Ha 7nm 18X600sec Bin1 -30°

Camera: QSI 583wsg Filters: 31mm unmounted Astrodon gen. 2

Frames: L 6X600sec Bin1 - RGB 5X600sec each Bin2 -30°

Processing: Pixinsight, Photoshop

APT automation

www.astrobin.com/y3jzyf/

The heart of the Heart nebula revisited using the "natural palette" with special attention to the dark nebulas there.

It a complete rework of a previous image made on SHOrgb.

A total of 57 hours of integration and a lot of intermediate version on the process.

Still I think that I could obtain more details, but this will be next year (maybe :P ).

Technical card

Imaging telescopes or lenses:Teleskop Service TS Photoline 107mm f/6.5 Super-Apo , Altair Astro RC250-TT 10" RC Truss Tube

Imaging cameras:ZWO ASI183MM-Cool , ZWO ASI1600MM-Cool

Mounts:Skywatcher EQ6R Pro , Mesu 200 Mk2

Guiding telescopes or lenses:Celestron OAG Deluxe , Teleskop Service TSOAG9 Off-Axis Guider

Guiding cameras:ZWO ASI290 Mini , ZWO ASI174 Mini

Focal reducers:Riccardi Reducer/Flattener 0.75x , Telescope-Service TS 2" Flattener

Software:Pleiades Astrophoto PixInsight , Seqence Generator Pro

Filters:Astrodon O-III 36mm - 5nm , Astrodon S-II 36mm - 5nm , Astrodon R Gen.2 E-series 36mm , Astrodon G Gen.2 E-series 36mm , Astrodon B Gen.2 E-series 36mm , Astrodon HA 36mm - 5nm , Optolong SII 6.5nm 36mm , Optolong OIII 6.5nm 36mm

Accessory:ZWO EFW , MoonLite NiteCrawler WR30 , MoonLite CSL 2.5" Focuser with High Res Stepper Motor

Dates:Nov. 29, 2019

Frames:

Astrodon B Gen.2 E-series 36mm: 90x30" (gain: 75.00) -20C bin 1x1

Astrodon G Gen.2 E-series 36mm: 90x30" (gain: 75.00) -20C bin 1x1

Astrodon HA 36mm - 5nm: 166x600" (gain: 200.00) -20C bin 1x1

Optolong OIII 6.5nm 36mm: 80x600" (gain: 183.00) -15C bin 1x1

Astrodon R Gen.2 E-series 36mm: 90x30" (gain: -75.00) -15C bin 1x1

Optolong SII 6.5nm 36mm: 80x600" (gain: 183.00) -15C bin 1x1

Integration: 56.6 hours

Avg. Moon age: 2.95 days

Avg. Moon phase: 9.53%

Astrometry.net job: 3907933

RA center: 2h 34' 16"

DEC center: +61° 21' 18"

Pixel scale: 1.007 arcsec/pixel

Orientation: 359.646 degrees

Field radius: 0.408 degrees

Resolution: 1760x2328

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility

From Wikipedia: “NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.”

This is a 2 hour and 35 minute combined exposure and processed in PixInsight in the Hubble palette.

Observation data:J2000 epoch

Right ascension: 23h 20m 48.3s

Declination: +61° 12′ 06″

Distance: 7100 to 11000 ly

Apparent magnitude (V): ~10

Apparent dimensions (V): 15′ × 8′

Constellation: Cassiopeia

Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at 0C, Sky-Watcher EQ6R-Pro mount, Optolong L-eXtreme filter (2”), 31 x 300 second exposures, guided using a ZWO 30mm f/4 mini guide scope and ZWO 120 Mini, focus with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using PixInsight and DSS. Image Date: August 31, 2022. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).

Tele Vue 85

Tele Vue 0.8x reducer/flattener

Optolong L-eXtreme

ZWO ASI533MC Pro

Skywatcher AZ-EQ5

Guiding ZWO ASI120MC-S + William Optics UniGuide 32mm

Nebulosity4

PHD2

PixInsight

Photoshop

Only 3 300" lights dithered

Calibrated with dark and bias frames

Cairns, Australia

Bortle 5

Telescope: Triplet 115/800

Camera: ZWO ASI 183MMPRO

Flattener 2"

Filter Wheel: ZWO ASI 1,25 x 8

OAG

Filters: OPTOLONG

Luminance: 40x180

RGB: 10x180 (each channel)

Total: 3:30 hours

DSS + PixInsight + PS6

Squid Nebula, Cepheus, taken with ASKAR 500 and ZWO ASI 2600MC, L-Ultimate & L-Synergy Optolong filters, 60x420" from Aosta Valley Western Alps.

48x200s

WO71-II, Optolong L-Extreme, ASI071MC, AVX

Hello folks here NGC300

Telescope: SharpStar 150 f2,8

Guide Scope:Evoguide

Mount : Skywatcher HEQ5

Imaging camera: ZWO 2600MC

Guiding camera: ZWO 290 MC

Filters: Lpro Optolong

Plate solving: SGpro

Imaging software: Sgpro

Guiding software: PHD2

Processing software: Pixinsight

Frames36X600s exposure@100 Gain

Integration: 6 hrs

The Veil Nebula in Cygnus, with its intricate structures, is one of my preferred nebulas in the night sky and is the result of a supernova which happened some 10,000 or 20,000 years ago.

This image is the re-processing of data taken in 2021, whose first version was published here astrob.in/93bsj3/C/ and I may say that this time I was able to achieve what I envisioned to this photo.

I hope you enjoy.

Shot at Barcarena on August 2021.

Technical details:

NB: 111 x 600’’

BB: 20 x 120’’

TS Optics Triplet APO 800/115 | TS Optics TSFLAT2 0.79x | QHYCCD 268C | Omegon IV/IR Cut 2'' | Optolong L-Extreme

Acquisition: N.I.N.A. | Processing: Pixinsight

More properly known as Sharpless 308, this emission nebula was created by the very hot Wolf-Rayet star EZ Canis Majoris near the centre of the frame when it cast off its outer layers of gas.

The image is an HOO narrowband integration of 22 hours O data and 23 hours of H captured with a QHY163M camera, WO FLT110 telescope and Optolong filters. Imaging was managed via SGP and PHD2. All post-processing was carried out in PixInsight.

Observed from Prachinburi, Thailand

Camera: QHY294C Pro

Scope: SW 200/1000 Newtonian modified

Mount: SW EQ6-R Pro

Filter RGB: Optolong L-Pro 2"

Filter Ha & OIII: Antlia ALP-T 2"

Expo RGB: 85 x 300s Light + Dark, Flat, Bias

Expo Ha & OIII: 24 x 600s Light + Dark, Flat, Bias

Controlled by StellarMate

Processed in PixInsight and Photoshop LR

Está es mi primera foto de campo profundo, esta realizada con:

Telescopio SW ED 80 Black Diamond sin guiado sobre montura Celestron AVX

Canon 1100D modificada

Filtro optolong L-Pro

40 Light ISO 3200 40s

40 Dark

30 Bias

El procesado está realizado con PixInsight con la ayuda de mi buen amigo Kike Rodríguez de la Asociación Astronómica Cruz del Norte

Sharpless 115 is a large emission nebula located in the constellation of Cygnus, close to the bright star Deneb. The small round shape upper centre is Sharpless 116, a small emission nebula. The region lies around 7,500 light years distant.

Imaged over 2 nights, 25th and 28th of September 2025.

HEQ5 PRO

RedCat51 WIFD

QHY183C Gain 21 -20C

Optolong L-eNhance filter

900sec x 30subs

Processed using Pixinsight and Photoshop 6.

Equipo Principal: ZWO ASI 1600 mm-pro + SW Explorer 250pds + SW Coma Corrector 0.9x + EQ6-R-Pro + ZWO EAF + ZWO 7x2" EFW

Equipo guía: starguider 60/240 mm, ZWO ASI 120mm mini

*Gain 139, -25 º C, Ha 7nm 2" Optolong, 85x180"

*Gain 139, -25 º C, Oiii-CCD 6.5 nm 2" Optolong, 80x180"

*Gain 139, -25 º C, Sii-CCD 6.5 nm 2" Optolong, 80x180"

100 Darks

100 Flats por filtro

Polar Align: SharpCap 3.2

Adquisición: SGP 3.1

Procesado: Pixinsight 1.8.8, PS

Fish Head Nebula, IC 1795, Cassiopea, taken with ARTEC200E and ZWO ASI2600MC, 60x420", Optolong L-Ultimate, with full Moon, from Aosta Valley Western Alps.

Part of the Large Magellanic Cloud but off to the side first time I have seen so much dust in the background.. Looks like an area that has a lot to offer.

QHY183C -10c 90 shot 10 min

MeLE Mini PC

Prima Luce Essato Focus

Optolong LeNhance filter,

Skywatcher Black DiamondED80 OTA

Skywatcher NEQ 6 Pro

SVbony 50MM Guide scope

QHY QHY5L-II-M Guide camera

Guided PHD2, Nina

Pixinsight, Ps.

Cone to Rosette Nebula.

Started a mosaic on 2/26/17. This is the first 14 panels I collected and put together in a semi-rough draft

Optolong HA filter

11" Celestron EdgeHD+Hyperstar(F/2)

QHY163M- Gain 17 Offset 77

Each panel is 10x60 seconds (2 hours 20 minutes total)

The Soul Nebula (Westerhout 5) is an emission nebula located in the constellation Cassiopeia. It forms a famous pair known as the Heart and Soul with the neighbouring Heart Nebula (IC 1805). The Soul Nebula is sometimes also known as the Embryo Nebula or IC 1848, which is a designation used for the open star cluster embedded within the nebula.

The Heart and Soul Nebulae complex spans an area about 300 light years across and is a vast star-forming region illuminated by the light of the young stars surrounded by star-forming clouds of dust and gas. The two large clouds are separated by only 2.5 degrees and physically connected by a bridge of gas. The stars in the region are less than a few million years old and are only beginning their life. For comparison, our Sun has been around for almost 5 billion years.

First light using the Optolong L-eNhance Filter on the Canon 6d Baader Mod C-11 @ F/2 -30 subs 90 sec iso 1600 - NO dark's added DSS 4.2.2

Avevo già fotografato 10 anni fa (flic.kr/p/oW1HnY) la grande nebulosa associata all'ammasso aperto "IC1396" con lo stesso telescopio e la Canon 550D (T2i) ottenendo un discreto risultato con meno di 4h di integrazione.

Era giusto provare nuovamente con la nuova camera ASI533MC-P e in Banda Stretta (fotografando da zona con Inquinamento Luminoso) anche se il FOV inquadrato è relativamente più piccolo e ritrae la nebulosa oscura "VdB142" o Collinder439, denominata per la sua forma "Proboscide di Elefante".

Per avere un buon segnale mi sono dovuto spingere a quasi 10 ore di integrazione ottenendo questo risultato che non mi dispiace affatto.

Non nascondo che integrare molte ore in più sessioni fotografiche richiede a volte molti giorni/mesi a causa delle condizioni meteo e qualità del cielo. A questo si aggiungono difficoltà tecnico-logistiche per chi è costretto a dover montare e smontare il setup ogni volta; fortunatamente non nel mio caso.

______

I had already photographed 10 years ago (flic.kr/p/oW1HnY) the large nebula associated with the open cluster "IC1396" with the same telescope and the Canon 550D (T2i) obtaining a decent result with less than 4h of integration.

It was right to try again with the new ASI533MC-P camera and in Narrow Band (photographing from an area with Light Pollution) even if the framed FOV is relatively smaller and portrays the dark nebula "VdB142" or Collinder439, named for its shape "Elephant's Trunk".

To get a good signal I had to push myself to almost 10 hours of integration obtaining this result that I do not mind at all.

I do not deny that integrating many hours in multiple photographic sessions sometimes requires many days / months due to weather conditions and sky quality. Added to this are technical-logistical difficulties for those who are forced to assemble and disassemble the setup each time; fortunately not in my case.

(translated by Google)

________________

Optic: APO Rifractor Scopos TL805 80mm/f7 + WO 0.8X

Camera: ZWO ASI533MC-Pro

Mount: Sky Watcher HEQ5 Synscan

Seeing: 4 (scala Antoniadi inversa)

filter: Narrowband Optolong L-eNhance 2"

BS 119x300s 121gain / 26 dark /21 flat / 18 darkflat /100 bias

t° sensor: -10°C

Date: 6+11+13/10/2024

Integration: 9h 55min

Temperature: 17°C (media)

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

Acquisition: NINA, PHDGuiding

Processing: DSS, SIRIL, PS.

Teleskop: OMEGON pro Apo 94ED

Reducer: 0,8x

Kamera: Nikon D780a

Nachführung: CEM26

Filter: Optolong L-Pro

Constelación en que se encuentra: Lyra

Distancia: 2.300 años luz

De SkySafari:

#M57, se conoce como la Nebulosa del Anillo. Es una nebulosa planetaria, que son restos de estrellas similares al sol que han expulsado sus capas externas, dejando estrellas enanas blancas del tamaño de planetas en sus centros.

Fue descubierta en 1779 por el astrónomo francés Antoine Darquier en 1779. Charles Messier la incluyó en su famoso catálogo unos meses después. William Herschel, quien descubrió el planeta Urano, fue quien denominó este tipo de objetos como nebulosas planetarias al creer que se relacionaban con planetas. Herschel la describió como una nebulosa perforada, o un anillo de estrellas; también identificó algunas de las estrellas superpuestas e identificó correctamente que no pertenecían a la nebulosa.

En 1800 se descubrió la estrella central y en 1864 se analizó el espectro, encontrando que este tipo de nebulosas no está compuesto por estrellas, al encontrar que las líneas de emisión coincidían con gases ionizados brillantes: oxígeno en la parte central (azulado) e hidrógeno y nitrógeno en la parte externa (rojizo).

Se estima que el diámetro de M57 es de 0.8 años luz y el de la aureola alrededor es de 2.4 años luz. Su edad se estima entre 6000 y 8000 años (cuando se desarrollaron las civilizaciones de los sumerios, el Antiguo Egipto y el Valle del Indo).

Las nebulosas planetarias se forman después de que estrellas de masa mediana o baja, como el Sol, agotan el combustible de hidrógeno en sus núcleos. En este punto, las capas exteriores de las estrellas se expanden, y se convierten en gigantes rojas. La parte externa gaseosa en expansión forma la nebulosa planetaria, mientras que el núcleo estelar colapsa para convertirse en una enana blanca, iluminando la nebulosa con energía ultravioleta de su superficie extremadamente caliente.

La estrella central que ilumina M 57 contiene aproximadamente 1,2 masas solares. Esta enana blanca del tamaño de un planeta similar a la tierra, es más tenue que el Sol.

Datos de la imagen:

Exposure: 3hr 35min SHO 3nm (15 x 5min Ha, 12 x 5 min OIII, 16 x 5 min SII)

Telescope: #Celestron #EdgeHD #C925

Camera: #PlayerOne #Poseidon-M

Focal ratio: f10

Focal length: 2350 mm

Capturing software: NINA

Filter: #Optolong L, Optolong R, Optolong G, Optolong B

Mount: #iOptron #CEM60

Guiding: PlayerOne #Xena with PlayerOne #OAG Max and #PHD2

Dithering: Yes

Calibration: 30 darks, 10 flat darks, 10 flats (per filter)

Processing: #PixInsight

Date: 7-jul-2025

Location: #Bogotá, #Colombia

Data - 19/02/2021-20/02/2021

Hora - 23:39 ~ 00:02 local (-3 UTC)

Data - 02/03/2021-20/02/2021

Hora - 21:59 ~ 23:20 local (-3 UTC)

Lat - 7,13S

Log - 34,83W

Local - João Pessoa, PB - Brasil

Bortle - Class 8~9

Câmera - Canon T3 modificada (Full spectrum)

Lente - Canon 200mm F2.8 LII USM @F4 (320mm APS-c)

Filtro CLS-CCD Clip Optolong

ISO - 800

Montagem - EQ5

Motorização - On Step

Guider - SW 8x50 + SVbony 105

Ligth - 53 x 30s (26,5 min)

Flat - 15 x 1/1250s

Dark Flats - 15 x 1/1250s

Dark - 15 x 30s

Bias - 15 x 1/4000s

Software Captura - APT/PHD2

Softwares Processamento - DSS/PIX/PS

#astfotbr

Stacking of 31 photos (manually chosen on +130 pictures), made with a Newton Skywatcher Newton 200/1000 telescope (on a Neq6 mount) and Canon eos 1100d Mod full spectrum, and Cls Optolong filter. 1/80 sec at 200 iso

NGC 7635 (nota talvolta come Nebulosa Bolla o C 11) è una nebulosa diffusa visibile nella costellazione di Cassiopea, verso il confine con Cefeo.

ScopritoreWilliam Herschel

Data1787

Ascensione retta23ʰ 20ᵐ 45.5ˢ

Declinazione+61° 12′ 45″

Coordinate galattiche112°; 0°

Distanza11000 a.l. · (3372 pc)

Magnitudine apparente (V)11 (b)

Riprese effettuate dal Giardino di Casa il 18 06 2022

Celetron C11 ridotto x 0,63 , Asi 2600 MC , Eq6R pro , guida 60/240 , Asi 120mini mm ,filtro optolong Lpro .. 60 Lignt x 180 29 Dark 29 Flat

I wanted an easy Target for my first night on my own using the ZWO CMOS camera and getting Fits files. 33 Files 10 min files Shot With ZWO ASI071MC Pro @ -10c and ZWO AEF, Optolong LeNhance filter, Guided PHD2, Stacked DSS. Processed PixinSight (stil learning), PS and Lr.

I would like to try for the larger stars 5 min shots rather than 10min.

A supernova remnant from a star the exploded between ten to twenty thousand years ago. It is ca 2400ly distant.

H-alpha / O-III narrowband filters / Celestron RASA 11" / 10 Micron GM1000 HPS / SIGMA fp L (monochrome)

Stars: TS94EDPH (0.8 reducer) / Optolong L-Pro Filter / SIGMA fp L (uncalibrated)

Calibration/Registration/Integration in AstroPixelProcessor, all further processing to taste in Photoshop.

100% view: markjamesford.prodibi.com/a/g66rrwd4xmx27m1/i/kv8exgvkwwe...

NGC6188

Efix: Takahashi FS60CB + ASI 1600MM pro + NEQ6pro (Rowan Mod) + Optolong 7nm filters - 72 x 5 min Ha, 46 x 5min OIII, 52 x 5min SII - Gain200 - Edit: PIX and PS

This was my final two nights in Perth Before getting on the plane to NZ. The Antares area or Rho Ophiuchi two nights. I was doing the Milky way panorama so this could rise up. The camera was rotated to get the dark rivers in the full photo A far cry from the original photo I took in may 2019.

ZWOASI071MC -10 57 shots per the 2 nights

600 sec rotated 105.5 degrees.

Nikon 105 mm f2.8 G Lens

Optolong LeNhance filter

Skywatcher NEQ 6 Pro Hypertuned

Guided PHD2, SGP

Pixinsight, Ps Lr.

NGC 891 (or Caldwell 23) is an edge-on spiral galaxy in the constellation Andromeda. It is about 32 million light years away. It is larger and has a higher star formation rate than our Milky Way Galaxy.

This was a long project from my backyard in Long Beach, CA. I took data in both January and December 2022 with a Celestron Edge HD 925 with 0.63x focal reducer for a focal length of 1530 mm. The camera was an Atik 414-EX with Optolong LGRB CCD filters. Preprocessing in Nebulosity; registration, stacking, channel combination, and initial processing in PixInsight; final touches in Photoshop (no Topaz Labs).

Exposures used from each filter are as follows.

L: 74 x 2 min

R: 36 x 3 min

G: 23 x 3 min

B: 31 x 3 min

M74 (The Phantom Galaxy) was one of the first targets of JWST. This image is from my backyard in Long Beach, CA using a Celestron Edge HD 925 at focal length 535 mm with Hyperstar. I used Optolong LRGB filters with an Atik 414-EX camera to get the following stacks:

L channel: 178 25 s exposures

R channel: 65 75 s exposures

G channel: 59 75 s exposures

B channel: 60 75 s exposures

Preprocessing in Nebulosity with dark, bias, and flat frames. Registration, stacking, channel combination, and initial processing in PixInsight. Photoshop and Topaz Labs for final processing and noise removal.