Fujifilm X-T10, Samyang 135mm f/2.0 @ f2.0, ISO 1600, 40 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing in GIMP, taken July 31 under Bortle 3/4 skies. Conditions seemed about perfect, Sadr was nearly directly overhead, and my focus was dead-on, making processing simple.

Notable nebulae contained in this extent are the Gamma Cygni Nebula around Sadr and the Crescent Nebula near the center.

Taken on my third consecutive night of astrophotography - I'm not going out tonight despite the likely clear skies - I need a break.

Aug. 2 update: A re-edit, this time without a luminance layer - makes the reds less pink.

I combined a stack of 10 with DeepSkyStacker to deal with the noise, and I had a heck of a time doing it, too! :) Maybe because I accidentally shot in jpeg...

Equipment

Imaging Telescopes Or Lenses

GSO 8" f/5 Imaging Newtonian

Imaging Cameras

ZWO ASI 183 MM PRO

Mounts

Sky-Watcher NEQ6-Pro

Filters

Baader B 1.25'' CCD Filter · Baader G 1.25'' CCD Filter · Baader R 1.25'' CCD Filter

Accessories

TSOptics TS Off Axis Guider - 9mm · Pal Gyulai GPU Aplanatic Koma Korrector 4-element

Software

Luc Coiffier DeepSkyStacker (DSS) · PHD2 Guiding · PhotoShop CS5 · FitsWork 4 · CCDCiel

Guiding Telescopes Or Lenses

GSO 8" f/5 Imaging Newtonian

Guiding Cameras

Astrolumina Alccd5L-IIc

Acquisition details

Dates:

Sept. 15, 2020

Frames:

Baader B 1.25'' CCD Filter: 20x300" (1h 40') (gain: 53.00) -20°C bin 1x1

Baader G 1.25'' CCD Filter: 20x300" (1h 40') (gain: 53.00) -20°C bin 1x1

Baader R 1.25'' CCD Filter: 20x300" (1h 40') (gain: 53.00) -20°C bin 1x1

Integration:

5h

Pinwheel- Galaxie

Mizar and Alco, Alkaid, Deichsel vom Sternbild Großer Wagen (Bär)

60s ? f 2.8 / ISO500 / EF100mm

DSS - 3 Pic Stack

Pic taken 2019-05-13 / just 3 pic's usable (cloudy)

First try at NGC7000, from the back yard. 9/24/2022

20 x 240 secs.

Canon EOS-R

William Optics GT81

iOptron CEM40

DeepSkyStacker

DxO PhotoLab 5

Bortle 7+

382mm

ISO 1600

f/4.7

Plejaden (M45)

auch 7 Schwestern genannt

Stacked with Deep Sky Stacker

48 Lights / 31 Darks / 40 Bias

Single Frame

30sec / f 7.1 / ISO 200 / 500mm

Canon 80D / Sigma 150-600c

Star Adventurer unguided

The 'W' of Cassiopeia has always been one of my favorite constellations - maybe because I could always spot it as a kid.

This extent contains the middle three stars of the 'W' - Ruchbah (blue, bottom), Navi (blue, upper left), and Shedar (yellow, upper right). The center star of the 'W', Navi, illuminates the Gamma Cassiopeiae Nebulae (IC 59 and IC 63) a combination of red emission and blue reflection nebulae. The red/pink emission nebula below Shedar is the Pacman Nebula (IC 11 or NGC 281). And to the right of Ruchbah is the Owl or E.T. Cluster (NGC 457); the owl or E.T. is upside down here.

Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 35 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken on Oct. 23, 2019 under Bortle 3/4 skies and thin cloud cover.

Thin cloud cover was present most of the time that I imaged and acted as a diffusion filter for the larger stars. I kind of like this effect that emphasizes big stars, especially for this extent where the nebulae are fairly small for a focal length of 135mm, although I'd always prefer clear skies to a natural diffusion filter. Even though my tracking was spot-on (good balance, polar alignment, and a charged SkyTracker), I wasn't able to use about half of my subs because of clouds.

Reprocess

Last night I added some time to a session I did in February for a total of just over four hours of 3 minute subs. Struggled to beat the first version I did of this 2 years ago, and that was only 28 minutes for heavens sake! Got there in the end though :)

That star was gagging for some spikes :)

SW ED80/EQ5

Nikon D70 modded, Baader Neodymium filter

84 x 180sec subs, iso 800, for a total of 4 hours 10 minutes

Guiding (RA only): Quickcam Pro4000/9x50 finderscope, PHD

Stacked in DSS and processed in CS5. Spikes by StarSpikes Pro

Not the first image I've posted on Flickr of this subject, but the first time I've imaged it with the 12" 'scope.

Manually, off-axis guided for 12 x 4-minute exposures at ISO 1600, f/4.

Modified EOS 600D & Revelation 12" Newtonian reflector telescope.

Registered and stacked using DeepSkyStacker; initial curves adjusted in Canon Photo Professional; final curves & colour-balance adjusted using Paint Shop Pro; final noise reduction using CyberLink PhotoDirector.

Shot with the EOS-M and 22mm f/2 @ 2.8, ISO 400. 20 minutes exposition (5x 4-minute), stacked in DeepSkyStacker and processed in Canon DPP.

I never get tired of the Cygnus region.

More commonly known as The Dumbell Nebula. Sometimes as the Apple core or egg timer as well.

M27 is a planetary nebula over 1,200 light years away in the constellation of Vulpecula. Discovered by Charles Messier in 1764 it's thought to be the first planetary nebula discovered.

They were given the title planetary nebulae by William Herschel, who thought that these kind of objects looked small and round like a planet.

Boring techie bit:

Celestron Nexstar 8SE telescope, Skywatcher EQ6 R pro mount, RVO 32mm mini guide scope, ZWO asi120mm mini guide camera, ZWO asi533mc pro cooled to -10c gain 0, ZWO asiair plus.

Darks, Flats & Bias.

Stacked with DeepSkyStacker and processed in Affinity Photo.

Photo credit myself & Stuart Keane.

Data captured at www.astronomycentre.org.uk

A number of photos were taken with a Sony A7 III camera, attached to a 102 mm f/7 refractor, on a Losmandy G11 equatorial mount, stacked in DeepSkyStacker, and further processed with Nebulosity

I managed to add 3 hours to my previous version of this on Saturday night, but that has little to do with the above result. This is my first attempt at collaboration with my good friend Dave Williams (whom I have never met, as he lives in the frozen northern wastelands known as Manchester). Dave works in NB, and provided Ha, which I added as a luminance layer (after trying a few other techniques without success), and this is the result. Now I'm fully aware that what you can see above is predominantly luminance, with a bit of RGB thrown in to provide character, so Dave very much deserves most of the credit for this image. However, as he's not on Flickr, I'm happy to accept it :)

This is also my first attempt at combining Ha with RGB (albeit as luminance), and It makes my previous version look a bit sick :)

RGB:

SW ED80/EQ5

Nikon D70 modded, Baader Neodymium filter

45 x 180secs iso 800, 60 x 180secs iso 640 (5 hours 15 minutes)

Guiding (RA only): Quickcam Pro4000/9x50 finderscope, PHD

Stacked in DSS and processed in CS5

Ha:

15 x 600secs (2 hours 30 minutes)

Used Hasselblad 250mm f4 lens at f4 (cropped - quite a bit!)

Moravian G2 8300

Astrodon 5nm Ha filter

Takahashi EM200 mount

Guiding: DMK through an old 100mm M42 lens

(Added Ha signal)

Between 5000 and 8000 years ago a supernova exploded in the center of this region in the constellation Cygnus. Today we see the Veil or Cirrus nebula complex with the Eastern veil (NGC6995 left), Pickerings triangle (top right) and Western veil (NGC6960 right). Photographed with Canon 6Da / Esprit 100 APO refractor with Optolong L (IR/UV cut) filter. 39x240 seconds + 9x900 sec with 12nm Optolong Ha filter iso1600. Stacked with DeepSkyStacker using 48 dark frames, 30 Flat frames and 174 Bias frames. Processed in Pixinsight. DBE, HistogramTransformations, NBRGBCombination script, Curves adjustment, Morphologicaltransformation for star reduction . No noisereduction was used.

Knight Observatory, Tomar

The Andromeda Galaxy or M31 as captured in a stack of fifty-four images that were exposed for 25 seconds each using a hand-driven, barn-door type tracking mount (two boards, a hinge, and a screw you turn by hand). This photo also shows Andromeda's two satellite galaxies, M32 and M110 (see image notes for the locations, M110 is the small elliptical galaxy slightly below center).

This photo was taken using a 50mm Nikkor AF-D lens on a Nikon D5100 DSLR and it is best viewed in the Flickr light box (press the "L" key to toggle the light box and optionally click on the "View all sizes" menu item to see the image at its largest size).

With the aid of the Cartes du Ciel star charting software (highly recommended free download) and with an examination of the area surrounding M110 I've determined that the limiting magnitude in this photo is around 14.5 (stars nearing the 14th magnitude are clearly shown, fainter than that are more difficult). There is also a definite halo around the small satellite galaxy M32, a detail which was not that apparent in my earlier post.

The brightest star in this photo (above center) is Nu Andromeda at magnitude 4.5 and it is located just over one degree from the center of the Andromeda Galaxy. One degree is just about twice the apparent size of the full moon, so you can see that the Andromeda Galaxy (as recorded in this photo) is several times the size of the full moon.

Captured on September 28 and 29 between 11:34PM and 12:28AM PDT with a Nikon D5100 DSLR (ISO 4000, 25 second exposure x 54) and a 50mm AF-D Nikkor lens set to aperture f/2.8. Image stack created with DeepSkyStacker using 54 image frames combined with 27 dark frames (no flats or bias).

All rights reserved.

IC 2177 is a region of nebulosity that lies along the border between the constellations Monoceros and Canis Major. The region is often referred to as the Seagull Nebula, and includes a larger nebulous region as well and open clusters NGC 2335 and NGC 2343 and a small reflection nebula named NGC 2327 (in the wing of the Seagull). The open cluster Messier 50 (M50 or NGC 2323) can be seen in the upper left corner.

Tech Specs: Williams Optics Redcat 51 Telescope, ZWO ASI071MC camera running at -10F, total capture 2 hours and 10 minutes using 300-second exposures, Optolong L-eXtreme 2” filter, Sky-Watcher EQ6R-Pro mount, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: February 4, 2024. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).

♪ ♫

The Triangulum Galaxy is a spiral galaxy approximately 3 million light years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598, and s the third-largest member of the Local Group of galaxies, which includes the Milky Way, the Andromeda Galaxy and about 44 other smaller galaxies.

With a diameter of about 50,000 light years, the Triangulum galaxy is the third largest member of the Local Group of galaxies. It may be a gravitationally bound companion of the Andromeda Galaxy Triangulum may be home to 40 billion stars, compared to 400 billion for the Milky Way, and 1 trillion (1000 billion) stars for Andromeda. from wiki

...

autori: xamad e Valentina Saltarelli (stoica amazzone alla sua prima impresa astrofotografica al gelo ♥)

Telescopio: APO Triplet 130/910 mm

Camere di acquisizione: Canon / CentralDS EOS Astro 50D

Montature: Sky-Watcher EQ6 Pro

Telescopio guida: 80/600

Camere di guida: lacerta mgen2

Riduttori di focale: Flattener 2"

Software: DeepSkyStacker, Adobe Lightroom 3, Silicon Fields StarTools 1.3, Noel Carboni's Astro Tools for PhotoShop

Filtri: Orion SkyGlow 2" Imaging Filter

Date: 25 novembre 2013

Pose:

Orion SkyGlow 2" Imaging Filter: 10x480" ISO1000 -16C bin 1x1

Orion SkyGlow 2" Imaging Filter: 5x180" ISO2500 -16C bin 1x1

Orion SkyGlow 2" Imaging Filter: 10x360" ISO2500 -16C bin 1x1

Integrazione: 2.6 ore

Dark: ~20

Flat: ~20

Fase lunare media: 57.79%

Scala del Cielo Scuro Bortle: 3.00

Reprocessed here

Three clear nights on the bounce - whatever next?! :)

Took advantage of the weather to give this a really good crack, something I've been waiting to do since the arrival of the ED80. This is full frame, so the focal length is ideal. As near as dammit 8 hours total exposure, made up of various sub lengths and iso settings. The variation in iso seems to improve the overall noise in the final tif, so I was able to stretch this a little further (some would say too far!). Not sure if it's a little too contrasty - all a matter of personal taste I suppose. Overall, I'm very pleased with this :)

SW ED80/EQ5, cropped

Nikon D70 modded, Baader Neodymium filter

18 x 4 mins iso 1600

30 x 6 mins iso 1250

22 x 10 mins iso 800

Guiding: Quickcam Pro4000/9x50 finderscope, PHD

Stacked in DSS and processed in CS5

Equipment

Imaging Telescopes Or Lenses

TS-Optics 6" f/4 UNC Newtonian Telescope - Carbon

Imaging Cameras

ZWO ASI 183 MM PRO

Mounts

Sky-Watcher NEQ6-Pro

Filters

Baader Ha 1.25" 7nm · Baader Planetarium SII 1.25" 8nm · Baader Planetarium O3 1.25" 8.5nm

Accessories

ZWO EAF Electronic Auto Focuser · TSOptics TS Off Axis Guider - 9mm · Pal Gyulai GPU Aplanatic Koma Korrector 4-element

Software

Luc Coiffier DeepSkyStacker (DSS) · PHD2 Guiding · PhotoShop CS5 · FitsWork 4 · CCDCiel

Guiding Telescopes Or Lenses

TS-Optics 6" f/4 UNC Newtonian Telescope - Carbon

Guiding Cameras

Astrolumina Alccd5L-IIc

Acquisition details

Dates:

Nov. 5, 2020 · Nov. 6, 2020

Frames:

Baader Ha 1.25" 7nm: 96x300" (8h) (gain: 200.00) -20°C bin 1x1

Baader Planetarium O3 1.25" 8.5nm: 45x300" (3h 45') (gain: 200.00) -20°C

Baader Planetarium SII 1.25" 8nm: 58x300" (4h 50') (gain: 200.00) -20°C bin 1x1

Integration:

16h 35'

Last night was the first clear Moonless night for a while, so I drove an hour Southwest of Brisbane and took some test shots of some of the larger deep sky objects to see how my 100mm macro lens performs for astrophotography.

The Pleiades (also known as the Seven Sisters) is a galactic star cluster approximately 135 light years from Earth. It contains many young, hot blue stars, and the light from these stars can be seen reflecting off dust in the region.

This image is 30 x 30 second exposures in a Star Adventurer Mini tracker, with the lens at f/4 and 3200 iso. Processed using DeepSkyStacker and Lightroom 5.

M-27 Dumbbell Nebula

C-11 @ F/2 Hyperstar CGEM-DX on Pier

16 subs 60 sec iso1600 unguided

0 flats, 0 darks, 0 bias

Total integration 0 hours 16 minutes.

Canon 6D Baader Mod – by Hap Griffin.

Filter - LPS2

seeing - average

many times on target.

Stacked in Deepskystacker

Manually, off-axis guided for 11 x 5-minute exposures at ISO 1600, f/4.

Modified EOS 600D & Revelation 12" Newtonian reflector telescope.

Registered and stacked using DeepSkyStacker; initial curves adjusted in Canon Photo Professional; final curves & colour-balance adjusted using Paint Shop Pro; final noise reduction using CyberLink PhotoDirector.

Secondo ritratto della Galassia di Andromeda con le altre due galassie ellittiche vicine, M32 e M110.

Rispetto alla prima foto ho cercato più pulizia e fedeltà cromatica.

Scattata in condizioni abbastanza favorevoli come inquinamento luminoso, ma con la galassia sempre abbastanza lontana dallo zenit, prima della nuova Luna piena riproverò.

Critiche, commenti e consigli graditissimi.

Nei commenti ulteriori dettagli.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

Data e luogo:

-Massa, 44° 2'31.08"N 10° 7'9.22"E

-27 Settembre 2011 ore 23 circa.

Number 35 in the Messier catalogue, number 2168 in the New General Catalogue.

A quite beautiful open star cluster in the constellation of gemini. At 2,700 light years away it is filled with young hot blue stars, leading to estimates at the age of the cluster to be around 150 million years. Over 500 massive stars spread out amongst 2,500 stars, stretching over just 24 light years.

In stark contrast is the open star cluster NGC 2158 in the lower right corner. Much further away at over 14,000 light years, it appears much more condensed. The lack of any large hot blue stars gives away the fact that it is also much older at an estimated 2 billion years.

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 -10c, ZWO asiair plus.

300 seconds at 0 gain.

Stacked with DeepSkyStacker and processed in StarTools.

This is the Eastern part of the Veil Nebula complex in Cygnus. It's the remnant of a supernova that exploded 5-8000 years ago. The gas ejected from the explosion is still expanding outwards, colliding with other interstellar material at up to 30,000 km/s (one tenth the speed of light) -- the shock of the impact ionizes the gases, causing them to glow like this.

I've created a "bi-colour" image here -- a combination of just two channels -- with one channel in hydrogen-alpha (Ha) and one in Oxygen-III (OIII).

The image includes roughly 2.5 hours of exposure in Ha and 4 hours in OIII, through the QHY9 mono camera and William Optics FLT110 at f5.6. Stacked in DeepSkyStacker and aligned/processed in Photoshop.

Ha is mapped to Red, the Green channel is a 75-25 blend of OIII-Ha, and the Blue channel is a 90-10 blend of OIII-Ha.

Shot over two nights from my back yard in downtown Toronto, Canada.

This is the galaxy designated NGC 5961 located in the constellation Corona Borealis. Inside the galaxy is the supernova 2025ngs that I imaged on July 4, 2025. My magnitude estimate based on 60 minutes of collected data is V16.1.

Tech Specs: Meade 12” LX-90 SCT Telescope, Antares Focal Reducer, ZWO ASI2600MC camera running at 0F, 60 x 60 seconds, Celestron CGX-L pier mounted, ZWO EAF and ASIAir Pro, processed in Tycho Tracker and PixInsight. Image Date: July 4, 2025. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).

A re-process of some of my data using DeepSkyStacker, Graxpert & PixInsight.

This planetary nebula is located right on the border of Taurus and Perseus. It is cataloged as NGC 1514 and is also known as the Crystal Ball Nebula. The magnitude, depending on the source, is listed at 10.9.

Observation data: J2000 epoch

Right ascension: 04h 09m 16.98573s

Declination: +30° 46′ 33.4699″

Distance: 1520 ly

Apparent magnitude (V): 9.27

Apparent dimensions (V): 2.2′

Constellation: Taurus

Tech Specs: Orion 8” RC Telescope, ZWO ASI2600MC camera running at -10F, 68 x 60 seconds, Celestron CGEM-DX pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: January 2, 2024. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).

Finally got imaging working again with my new laptop. It's taken a while!

M106 in Canes Venatici plus a few other galaxies, From top to bottom they are NGC 4220, NGC 4248, NGC 4217 and NGC 4346.

This was a quick test image stacked in DeepSkyStacker so there's a couple of satellite trails that could be processed out.

Taken from the Starshed Enterprise on 26th March 2020.

A stack of 9x300s exposures using a QHY22 camera on a TS Imaging Star71 - 71mm f/4.9 Imaging APO telescope. Autoguided using OAG. Flats, darks and bias applied.

Calibration and stacking done in DeepSkyStacker and post-processing in PixInsight.

Ambas feitas com 8 lights + 8 darks e 8 bias, empilhados no Deep Sky Stacker. Utilizei a t3i e a 24mm, com ISO 1600, f/ 2.8 e exp de 15 e 20seg.

_________________________________________

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OTA: Celestron C8N, 8" newtonian reflector

Starizona Nexus 0.75x coma corrector (for f/3.75)

Camera: ZWO ASI1600MM

Filters: Baader CMOS-Optimized Ultra-Narrowband

Exposure: Ha 12x10min, Oiii 7x10min, Sii 7x10min

Mount: CEM70G

Captured with SGP

Registered and stacked with DeepSkyStacker

Photographed from Round Rock TX (light pollution zone: red)

Skywatcher 100 Esprit APO refractor + Canon 6D full spectrum mod with Optolong-L filter. Exposure time: 6hr30min (99x240sec) august 18-19 2015 ISO1600. Stacked in Deepskystacker with 21 flat frames and 65 bias frames. Processed with Pixinsight. Mount: Skywatcher AZ-EQ5-GT. Capture software: Backyard EOS. Guided with PHD2 and Orion Starshoot autoguider on 50 mm guidescope.

Press L (followed by F11) for the best view.

Northfield, OH

DeepSkyStacker, ImagesPlus, rnc-color-stretch

30 exposures @1.6 sec ISO 3200

Pentax K5-II

Super Takumar 200mm F4

iOptron SkyGuider Pro

f/5.6@ISO 800

67x210s stacked using DeepSkyStacker

Processed in PixInsight and Photoshop

One of the last chances this season. Rosette was very low on the horizon.

About 80, 30 second images

D800

70-200 @ 200mm

iso 3200

F2.8

Eq3 unguided

UHC-e filter

Bortle 5

Summer MilkyWay and its treasures

A project I was working on the past couple of days...4 nebulas depicting their locations within the MilkyWay.The MilkyWay and the Lagoon Nebula were both captured in Judique,Nova Scotia and the Eagle,Swan and Trifid nebulas were caught in my observatory in rural Ottawa,On.

---MilkyWay... ISO 800

18mm-f3.5 @ 360sec

---Swan Nebula...ISO 800:

42 x 30sec

ISO 1600:

22 x 60sec

12 x 300sec

14 x 600sec

12 x 900sec..22 Flats

---Eagle Nebula...ISO 1600

16 x 90sec

10 x 180sec

2 x 300sec

11 x 600sec

16 x 900sec

1 x 1200sec..22 x Flats

---Lagoon Nebula...ISO 1250

11 x 150sec

1 x 300sec..22 x Flats

---Trifid Nebula...ISO 1600

26 x 30sec

7 x 900sec

4 x 1200sec..20 Flats

-Celestron AVX Mount

-150mm SkyWatcher Reflector

-Orion autoguider package

-Nikon D5100 (unmodified)

-AC adapter

-- Capture --

PHD 2.4.1

BackyardNIKON

--Processing --

DeepSkyStacker

PhotoshopElements12

Photoshop CS2

Annie's Astro Actions

Canon 5dmkii f/2 C-11 /CGEM-DX / Hyperstar. 25 lights, no Darks, no Bias, no Flats, stacked in Deepskystacker.

The Pleiades or Seven Sisters (Messier 45 or M45), is an open star cluster containing middle-aged hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. The celestial entity has several meanings in different cultures and traditions.

The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years. Dust that forms a faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster (hence the alternative name Maia Nebula after the star Maia), but is now known to be an unrelated dust cloud in the interstellar medium, through which the stars are currently passing. Computer simulations have shown that the Pleiades was probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.

en.wikipedia.org/wiki/Pleiades

An open star cluster also called the Foxhead cluster, though like most of these names, I don't see it. Quite a number of red giant stars hide in this cluster.

NGC 6819 lies 7,200 light years from us in the constellation of Cygnus the Swan.

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 101, Optolong L'enhance 2" filter, ZWO filter drawer, ZWO asiair plus.

60s exposures.

Best 80% of 120 light frames.

Darks, Flats & Bias.

Stacked with DeepSkyStacker and processed in StarTools & Affinity Photo.

Target:SH2-132 Lion nebula, a very faint emission nebula in the constellation of Cepheus at about 11000 light years from Earth.

Location:30/12/2020 and 01/01/2021 from St Helens UK, Bortle 8. Over 90% Moon.

Aquisition:38x 180s Ha, 36x 180s (OIII), 19x 180s (SII). Total integration 279 min.

Equipment:Imaging: Skywatcher Esprit 100ED, HEQ5 Pro, ZWO ASI1600MM Pro with EFWmini and Baader planetarium narrowband filters.

Guiding: Skywatcher 9x50 finder with ZWO ASI120MM.

Software:Capture: NINA, PHD2

Processing: DeepSkyStacker, Siril, Photoshop, Starnet++.

Memories:Fog descended on first evening so target resumed a couple of days later on a clearer night.

Nikon d5100

22mm

f3.8

ISO 1600

20 second exposures

20 images stacked

I applied a heavy noise reduction filter to this to try and get that smooth Hubble look :)

M65, M66 and NGC 3628; 30 million light years from home.

I was going to crop this tighter around the galaxies, but then I noticed a telltale streak on the left side of the image. After consulting Cartes du Ciel I discovered it was asteroid 128 Nemesis, which - despite its ominous name - doesn't come anywhere near the earth. (It's currently at a very safe distance of 2 Astronomical Units.)

Total exposure time: 85 mins

Telescope: Tele Vue-60 APO refractor

Mount: Vixen Super Polaris

Here's a crop of a photo of Comet Lulin shot with the Nikkor 200mm f/4 AI telephoto lens. I had the IDAS light pollution filter on the lens to help bring down the sky fog. There's still a bit of vignetting even though it's cropped. You can clearly see the dust tail (anti-tail) to the left of the comet. The proper tail is not that distinguished as it is projecting away from us. The bloated stars and Saturn were caused by me not using a smaller aperture.

Mars und Pleiades

Canon 80D / 70-200

2 sec / f 2.8 / Iso5000 / 200mm

DeepSkyStacker

Stack 20 Lightframes / 15 darks

Milky Way from Lake St. John Airport

Larger

Equipment

Imaging Telescopes Or Lenses

TS-Optics 6" f/4 UNC Newtonian Telescope - Carbon

Imaging Cameras

ZWO ASI 183 MM PRO

Mounts

Sky-Watcher NEQ6-Pro

Filters

Baader B 1.25'' CCD Filter · Baader Ha 1.25" 7nm · Baader G 1.25'' CCD Filter · Baader R 1.25'' CCD Filter · Baader Planetarium O3 1.25" 8.5nm · Baader L 1.25'' Filter

Accessories

ZWO EAF Electronic Auto Focuser · TSOptics TS Off Axis Guider - 9mm · Pal Gyulai GPU Aplanatic Koma Korrector 4-element

Software

Luc Coiffier DeepSkyStacker (DSS) · PHD2 Guiding · PhotoShop CS5 · FitsWork 4 · CCDCiel

Guiding Telescopes Or Lenses

TS-Optics 6" f/4 UNC Newtonian Telescope - Carbon

Guiding Cameras

Astrolumina Alccd5L-IIc

Acquisition details

Dates:

Aug. 6, 2020 · Aug. 7, 2020 · Aug. 8, 2020 · Aug. 20, 2020

Frames:

Baader B 1.25'' CCD Filter: 11x240" (44') (gain: 53.00) -20°C bin 1x1

Baader G 1.25'' CCD Filter: 12x240" (48') (gain: 53.00) -20°C

Baader Ha 1.25" 7nm: 75x300" (6h 15') (gain: 200.00) -20°C bin 1x1

Baader L 1.25'' Filter: 24x240" (1h 36') (gain: 53.00) -20°C

Baader Planetarium O3 1.25" 8.5nm: 39x300" (3h 15') (gain: 200.00) -20°C bin 1x1

Baader R 1.25'' CCD Filter: 12x240" (48') (gain: 53.00) -20°C bin 1x1

Integration:

13h 26'

The open star cluster M39 in the constellation Cygnus. An unguided image taken last night over Monticello, NY through a Canon 400mm f/5.6 L lens using a Canon 7D MKII dslr camera on a Celestron AVX mount. Thirty 30 second images, eight dark frames, and fifteen bias frames were stacked using DeepSkyStacker, then enhanced with Adobe Lightroom and Photoshop Elements.

Comet Lovejoy looking spectacular for Xmas now with a nice bright tail.

I was surprised to see the small horizontal fuzzy blur under the comet a distant Dwarf Galaxy NGC2188 32.5 Million Light Years away and very dim at Magnitude 12. Making it the dimmest most distant object I have ever photographed!

Olympus OMD-EM1 Camera with Zuiko Digital 150mm 2.0 Telephoto Lens tracked on Ioptron Skytracker. 10X1 minute exposures @ iso 1600 stacked in Deepskystacker

Photographing the Milky Way is my Muse. I keep going back to it seeing if I can approach it from another perspective. It's intensely beautiful. If you've never seen it, then you owe yourself an opportunity to go away from the city or town and out to a rural area. Even a 20 minute drive outside of the city limits will take you to a dark enough sky to see the general shape of the bright Cygnus region. This was taken the morning of August 12 during the recent Perseid meteor shower.