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All part of the Veil Nebula in Cygnus - aka the Cygnus Loop - this is the Western Veil and Pickering's Triangle (the triangular looking bit). It's the remnants of a supernova in the distant past.
There's lots of it missing, but I doubt I'll be able to pick up much more with a DSLR and my skies. Had to throw every weapon in my processing armoury at it to get this much! Having said that, I may have another crack next year :)
This is 38 x 5 minute subs (just over three hours) with the usual kit.
This was a tricky one for me. This is a stack of 12 x 3 minute exposures, tracked on an iOptron Sky Tracker. I originally tried stacking this both in DeepSkyStacker and Photoshop, but the results were blurry and not very good. That was because there was a lot of thin, wispy cloud blowing through as I was shooting this.
I tried stacking this one again tonight removing all the worse frames where clouds had obstructing too much of the frame. What started as 90 minutes worth of exposure was thereby whittled down to 36 mins. There were still clouds in the other pics, as can be witnessed by the halos around the brighter stars, but overall the amount of cloud was manageable so that median stacking would eliminate most of their effect. Then, rather than my usual method of processing Milky Way images, I used a workflow I'd normally use for deep sky objects. Due to the level of detail captured.
And this is the end result. It's not as perfect as I'd like it to be, but overall I'm pretty happy with the final result.
Nikon D750
Nikkor 24-70 f/2.8 @ 35mm
iOptron SkyTracker
12 x 3 minute exposures @ ISO 400
NGC 7635 The Bubble Nebula.
The open star cluster to the upper left is M52 the Salt & Pepper cluster.
Discovered by William Herschel in 1787, the Bubble Nebula lies within the boundaries of the constellation of Cassiopeia at a distance of 7,100 light years away. The bubble itself spans some 7 light years across. For perspective the nearest star to our Sun is only 4 light years.
The bubble is expanding at a phenomenal rate. There is a super massive star that is creating the 'stellar winds' causing the bubble to expand. It can be seen in the image to the upper centre within the bubble. These 'stellar winds' are moving at upwards of 4 million miles per hour!
The star is estimated at 4 million years old, so it's just a baby really. Though because it's so massive, it will burn through it's fuel much more quickly. NASA estimate just 10 - 20 million years before it goes BANG as a supernova.
The open star cluster M52, contains over 100 stars and is a little closer to us than the Bubble Nebula. Discovered by Charles Messier in 1774 it's distance is estimated to be somewhere around 4000-5000 light years away.
Image captured on Saturday 24th of September 2022 at The Astronomy Centre, Todmorden, UK.
Boring techie bit.
Skywatcher quattro 8" S & f4 aplanatic coma corrector
EQ6 R pro mount guided with an Altair 50mm & GPcam setup
Canon 450D astro modded with Astronomik CLS CCD EOS APS-C clip filter. Intervalometer used to control the exposures.
35 light frames 5 minutes each at ISO 800
Stacked with darks, flats, dark flats & bias in DeepSkyStacker.
All processing done with StarTools.
Project 366-1 2009 September 15 258/365
Another clear and clean night sky. Another beautiful view of the Milky Way.
Technical note: I used ISO 1600 and took 4 minutes of light frames and 12 minutes of dark frames. The low amount of digital noise with a 3:1 dark:light ratio is pretty worth the effort.
The sky-gods surprised me last night with 3 semi-clear hours. I quickly set up the RedCat 51 and Canon EOS Ra for some wide-field deep-sky images in Auriga.
Here is 50 x 3-minutes at ISO 1600 on the Flaming Star Nebula and Tadpole Nebula at a true 250mm focal length.
You can also see the "Spider and the Fly" in there.
This was a fantastic test of the Ha sensitivity of the Ra using a dual bandpass filter (Optolong L-eNhance).
Canon EOS Ra
Optolong L-eNhance Filter
William Optics RedCat 51
William Optics Uniguide 50mm
ZWO ASI290mm Mini
Sky-Watcher EQ6-R Pro
Astro Photography Tool
PHD2 Guiding
DeepSkyStacker
Photoshop 2020
M33 Triangulum galaxy
I've always struggled with this target. I use an old Canon 1100D unmodified camera and really struggle to get the fainter parts of the spiral arms.
This image was done with a Skywatcher 8" quattro with f4 aplanatic coma corrector on a HEQ5 pro mount.
Guiding was with an Altair 50mm guide scope and an Altair GPcam1 AR0130c
I used an unmodded Canon 1100D with an Astronomik clip in ccd filter and a Neewer intervalometer.
Software used was DeepSkyStacker, StarTools & Gimp.
Messier 36 (M36 or NGC 1960) lies at a distance of about 4,100 light years away from Earth in the constellation Auriga and is about 14 light years across. There are at least sixty members in the cluster. The cluster is very similar to the Pleiades cluster (M45), and if it were the same distance from Earth it would be of similar brightness.
Distance: 4,340 light year.
Radius: 7 light year
Right ascension: 05h 36m 18.0s
Declination: +34° 08′ 24″
Apparent Magnitude: 6.3
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at -10C, Celestron CGEM-DX mount, 54 x 60 second guided exposures, focused with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using PixInsight and DeepSkyStacker. Image Date: November 22, 2022. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Fifty 25sec exposures combined via Deep Sky Stacker. OM-1 with Olympus 300mm f4 Pro lens on a Star Adventurer tracker.
C/2020 F3 NEOWISE
Fecha: 18/07/2020, de 22h23m a 22h36m U.T.
Lugar: Algora, Guadalajara
Temperatura ambiente: +22.0ºC
Cámara: ZWO ASI071MC Pro
Óptica: Teleobjetivo Canon EF 100-400L IS f/4.5-5.6, a 100mm de focal y f/4.5
Montura: Skywatcher EQ6 Pro Synscan v.3.25
Guiado: Automático con QHY-5 mono y PHD Guiding v.1.14.0, utilizando un telescopio refractor Orion 80mm de diámetro a f/5.
Filtros: B+W F-PRO.
Exposiciones:
7 imágenes de 120s cada una, a +05ºC y 100 de ganancia
en total, 14min.
Software: APT Astro Photographic Tool v.3.82
DeepSkyStacker v.4.2.0
PixInsight LE 1.0
Adobe Photoshop CC 2019
Astronomy Tools v.1.6
Target:Comet C/2021 A1 Leonard with NGC 4656 Crowbar galaxy and NGC 4631 Whale galaxy in Canes Venatici.
Location:05:30 AM GMT 25-11-21 St Helens, UK, Bortle 7, 75% Moon.
Acquisition:15x 180s CLS, G139, OS21, Tsensor -15c, 40x darks, 30x flats, 30 dark-flats. Total Integration 45 min.
Equipment:Skywatcher Esprit 100ED, x1 Flattener, EQ6RPro, ZWO ASI1600MM Pro, EFWmini with Skytech CLS-CCD,
Guiding:Skywatcher 9x50 finder with ZWO ASI120MM.
Software:NINA, PHD2, EQMOD.
Processing:DeepSkyStacker, Affinity Photo, Siril, Starnet ++.
Memories:Noticed this chance alignment was available whilst already capturing a narrowband imaging run on the Fish Head nebula. With no RGB filters in my filter wheel decided to try and capture a bonus greyscale image of the comet via CLS-CCD at the end of my run.
Shotdates: 14-15-17/2/2015
Camera: Nikon D4s
Optics: NIKKOR 105mm @ f4
Exposure: 300 seconds 12, 24 and 22 frames (4 hour 50 minutes)
ISO-speed: ISO 1600
Stacked in DeepSkyStacker and post-processing in PixInsight.
Also known as The Crescent Nebula.
When you see some of the amazing widefield views of this nebula shot with triplet & quad refractors and narrowband filters it almost looks like a brain in space!
Found in the constellation of Cygnus the Swan, the Crescent Nebula is approx 25 light years across.
Around some of the edges you can just make out some faint bluish hue, these are oxygen atoms, these look really awesome in good narrowband images. One day I may have the money to go down that path.
Data gathered at The Astronomy Centre, Todmorden, UK.
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 110, Optolong L'enhance 2" filter, ZWO asiair plus.
Darks, Flats & Bias.
Stacked with DeepSkyStacker and processed in StarTools
Target:SH2-101 Tulip Nebula, emission nebula, Cygnus, 6000 light years away.
Location:1 & 3 June 2022, St Helens, UK, Bortle 7. 17% Moon, windy.
Acquisition:38x 240s Ha, 36x 240s (OIII) calibrated with Darks, DarkFlats, and Flats. Total Integration 4.9 hours.
Equipment:Skywatcher 200P Newtonian, EQ6Rpro. ZWO EFW. Altair H183Mpro. Baader MPCCMkIII coma corrector, 6.5nm filters.
Guiding:Skywatcher Evoguide 50ED. Altair GPCAMAR0130M.
Software:NINA, PHD2, EQMOD.
Processing:DeepSkyStacker, Siril, Affinity Photo, StarXTerminator, Topaz DeNoiseAI.
Notes:Imaged over 2 nights and processed as HOO. The first night was Moonless, calm but very humid with high passing cloud whilst the second had 17% moon and was very windy resulting in a number of lost subs. No true darkness so imaged during nautical twilight with the (OIII) sandwiched between shorter Ha runs so the (OIII) was taken during the darkest part of the session.
A flying Space Bat pounces in Cygnus!
Target:East Veil Nebula, NGC 6995, supernova remnant, Cygnus, HOO.
Location:6-8-2022, St Helens, UK, Bortle 7, no Moon, high cloud.
Equipment:Skywatcher 200P Newtonian & EQ6-R Pro. Altair H183Mpro, ZWO EFWmini & EAF. Baader MPCMkIII coma corrector & 6.5nm filters.
Guiding:Skywatcher Evoguide 50ED with Altair GPCAMAR0130M.
Software:NINA, PHD2, EQMOD.
Processing:DeepSkyStacker, Siril, Affinity Photo with Topaz DeNoiseAI, StarXTerminator and HLVG plug-ins.
Here is a triplet of galaxies often referred to as the Draco Trio, NGC 5985, NGC 5982 and NGC 5981. The grouping includes the edge-on barred spiral galaxy, NGC 5981, on the right. The elliptical galaxy NGC 5982 in the center. The last, NGC 5985 is a beautiful face on barred spiral galaxy, on the left. These galaxies are about 100 million light years away. Tech Specs: This image is composed of 60 x 15 second images at ISO 3200 with additional dark and bias frames. Equipment included a Meade LX90 12” telescope, Antares Focal Reducer, and Canon 6D camera. Imaging was done on September 1, 2016.
M74
Newton Sky-Watcher 200/1000 HEQ5 Pro GOTO - Correcteur de coma SW0264 - Nikon D600 au foyer
Map "Carte du ciel" - pointage EQMOD,
Empilement - calibration : DeepSkyStacker
Développement : Lightroom 5
20 x 30s = 10 mn de pose
10 darks, 10 flats et 10 offsets.
Another quick test of my new Skywatcher Star Adventurer Mini tracking mount, this time shooting the Milky Way. It was cold and very windy, my polar alignment was not very accurate and I didn't frame the shot as well as I could have, but for a test shot I'm fairly happy with the result.
This is 5 x 2 minute exposures with my 6D and the old 35mm f/2 lens at f/3.5 and 1600 iso. Stacked using DeepSkyStacker and processed with LR5.
- www.kevin-palmer.com - I'm still sorting through pictures from the Geminid meteor shower, but I wanted to post this picture from early this morning. Comet 46P/Wirtanen flew by the Pleiades in the constellation Taurus. Also known as the Seven Sisters, this star cluster is one of the closest to Earth at a distance of about 444 light years away. The extra hot and luminous stars cast their light on the nearby reflection nebula, which gives it the blue color. Comet 46P/Wirtanen was at it's closest approach just 7.2 million miles (11.5 million km) away from Earth. This makes it one of the top 10 closest comet encounters of the Space Age. While they look the same size in this image, the comet is quite a bit fainter, just barely detectable to the naked eye. The nucleus of the comet is less than 1 mile wide, but it's diffuse coma (cometary atmosphere) is larger than the planet Jupiter.
This image was shot with a Nikon 180mm f2.8 lens on a Nikon D750. It is a stack of 8 2.5 minute exposures, along with 4 dark and bias frames. An iOptron Skytracker was used to track the stars. I'm going to need a new tracker soon though. After shooting images for 1 hour, I had to delete 2/3 of them due to tracking errors.
Ermita de Sta María de Melque
This small church is located in a zone relatively isolated from Madrid. I find it an interesting location for night photography because light pollution is not very high. The only negative I find about this place, IMHO, is the fence around the church, as it affects the charm of the place a little.
This is my first serious attempt at long exposures of the sky with a star tracker (Skywatcher star adventurer). The sky is a stack from 11 exposures of 60 seconds at ISO 800, stacked with DeepSkyStacker.
The foreground was shot with a Nikon D850 and Samyang 24 1.4 at F2- 20 seconds at ISO 4000
This is NGC 7380 The Wizard Nebula in Cepheus, and I imaged this on Christmas Eve and Christmas Day as it was clear and I'm a sad bugger. :)
Quite small for my setup, and very difficult to process, this is 67 x 300 second subs for just over 5 and a half hours. Looks much better in the Hubble Palette, but I can't do that! :)
Happy New Year guys :)
First night with my new mount (HEQ5) and it was almost perfect clear sky with no moon!
Also it's the first time I've managed to make the guiding work properly, made all the lights 300sec long and only rejected the ones with clouds :D
As you can see, I'm really rusted with processing the images. It's the 3rd image I've processed since February! Noise got out of control, colors could take a better aproach, not happy with the stars....so many things poorly done but I know I will process it again at some point.
Horsehead Nebula - IC434 -B33
Light: 47x300" (3h55')
Dark: 12x300"
Bias: 30
Flats: no
Nikon D500 (non-modified)
Skywatcher 72 ED APO (with x0,85 reducer)
Skywatcher HEQ5
ZWO 120mm Mini + ZWO Mini Guide Scope
ASIAIR Plus
Processed in DeepSkyStacker and Photoshop
Total exposure of 2 hours 24 minutes, including 23 x 2-minute, ISO 3200 frames, taken 24 March 2020 (the other frames were from 2 sessions in 2017 and 2015).
I've had to crop the image more than I'd like because the camera orientation happened to be very different over the 3 the sessions, so the edges were very uneven.
Modified EOS 600D & Revelation 12" Newtonian f/4 reflector telescope.
Frames registered and stacked in DeepSkyStacker software; curves adjusted in Canon Photo Professional; noise reduction in CyberLink PhotoDirector.
An image of the Dumbbell Nebula (M27) taken with a ZWO183MC Pro camera on a Celestron 130mm f/5 reflecting telescope. 60 thirty second light images and 60 dark images were combined using DeepSkyStacker and processed in Adobe Lightroom to create the picture.
Captured the milky way in a very clear summer night whilst sitting on my balcony!
This image consists of 5 single images (and some darkframes) which have been stacked together in post procession.
The bright light pollution in the bottom of the image is coming from freiburg/fribourg.
An unguided image of the Leo Triplet Galaxies (M65, M66, and NGC3628) taken with a Canon 400mm f/5.6 L lens on a ZWOASI183 MC Pro camera. The final image was created from 50 30 second images combined together with Deepskystacker and enhanced with Gimp and Adobe Lightroom.
This is my second attempt at a guided shot of the Pleiades. I doubled the exposure time and took bias frames for the first time.
Taken with a TMB92L, Canon T3i DSLR, Orion SSAG autoguider and 50mm guidescope, and Celestron AVX mount. Consists of 42 240-second light frames and 30 240-second dark frames, all at ISO 800, as well as 15 flat and 30 bias frames. Captured with BackyardEOS, stacked in DeepSkyStacker, and processed in Photoshop.
We had another good astronomy session at Wivenhoe Hill west of Brisbane last night. I spent most of the time doing visual observing with my brother-in-law's 14" Dobsonian telescope, but I also had time for a couple of Milky Way panoramas.
This one is a panorama of the central section of the Milky Way galaxy, taken with a 35mm lens and the Star Adventurer Mini tracking mount. Each panel consisted of 5 x 120 second exposures at f/3.5 and 1600 iso, stacked using DeepSkyStacker. Panorama stitching was done using Microsoft ICE.
Equipo: Star Adventurer - Canon 6D - Sigma 100/400mm f/5-6,3
27 x 120s @f/5 100mm ISO 3200
Procesado: Deepskystacker - Photoshop - Lightroom
Febrero 2022 - Punta Indio - Bortle 3
Oh my... I really love this one. The Flame Nebula (NGC 2024) is the central orange component in the image and the bright star is Alnitak, the leftmost star in Orion's belt. And the craziest part (to me) is that this is just an RGB image... this is what's actually there with a normal exposure, colors and all! I used about 3 hours of Red, Green, and Blue data... from individual 3-minute exposures stacked in DeepSkyStacker and combined in PixInsight.
I shot this on Monday morning for the hours after midnight when Orion was higher in the sky and above the neighbor's trees. In addition to the Flame Nebula, the red trailing off at the bottom is part of the Horsehead Nebula and there are a few small other nebulae that you can see around the frame. We're wrapping up a tiny sequence of clearer nights right now, so I hope to have some more brand new telescope-shots to share with you soon!
The Hyades star cluster is the head of the bull in the Taurus constellation; Aldebaran, the brightest yellow star, is the eye. Quite a few dark nebulae are also present in this extent, as well as star cluster NGC 1647 in the upper left.
I normally wouldn't have astrophotographed on a night forecast to have only a small window of clear skies, but it had been a couple months since I had been able to image, so I went for it. I only managed 20 minutes of data without high, thin cloud cover despite shooting for well over an hour, but you have to take what you can get during winter in north Idaho. I'm going to shoot this one again sometime.
Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 20 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken on Jan. 21, 2020 under Bortle 3 skies.
-Setup:
Camera: Canon EOS 6D Astrodon mod.
Lens: EF100mm f/2.8 @f/4.5
Mount: Skywatcher H-EQ5 Pro (No guiding, just tracking)
Processing Software: DeepSkyStacker / PixInsight 1.8
-Imaging Data:
25.06.17 - 21x600" ISO200
03h 30min(3.50h)
second try
Canon 700D modifed
William Optics Redcat 51
Star Adventurer 2i Wifi
110x30sec
Software: deepskystacker, LR
Bortle: Class 4
My humble attempt at capturing our neighbour galaxy Andromeda, using a Canon 200D and a cheap Canon 55-250mm zoomlens. :)
Sadly, I live in a Bortle 7/8 scale. :(
I don't use any filters, so I did lose some quality and detail...
I added Vibrance and Saturation to get the colors.
Used Gear:
Canon 200D
Canon 55-250mm IS STM
Star Adventurer Pro (tracker)
Orion 50mm Deluxe (Guide Scope)
ASI 120MC-S (Guide Camera)
Intervalometer
EXIF:
35 x 120s Lights
15 x 120x Dark Frames
20 Flat Frames
I used PHD2 for Guiding en Polar Alignment.
I stacked about an hour worth of data in DeepSkyStacker and edited the TIFF in Photoshop 2020 and Adobe Camera RAW. :) (y)
Now this is a bit of a hotchpotch of data: Some very old data from the D70 back in the day (for the core), some data from the Canon/ED80/EQ5 and some recent data from the new setup. And some Ha data from my buddy Dave Williams for the outer faint bits.
All thrown into the pot and shaken (not stirred) until, as if by magic, this came out the other end. Good fun....:)
Hi all,
This is my longest astrophotography project to date.
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.
It constitutes the visible portions of the Cygnus Loop, a many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun, which exploded around 8,000 years ago. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, or 36 times the area, of the full Moon). The distance to the nebula is not precisely known, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light years.
Integration:
15 hours, 50 minutes of total exposure time
ISO 200
No Darks (Dithered)
200 Bias Frames
25 Flats Per Session
Equipment:
Telescope: William Optics Zenithstar 73
Mount: Sky-Watcher HEQ5 Pro Rowan Belt Mod
Autoguiding Scope: Starwave 50mm Guidescope
Autoguiding Camera: ZWO ASI 120MM Mini
Camera: Canon 80D (unmodified)
Software:
PHD2 Guiding
Astrophotography Tool
Deepskystacker
Adobe Photoshop
Adobe Lightroom
Some of the faint outer region of the galaxy, better visible in much deeper exposures, is just visible to the right.
A mixture of old and new data: 19 x 4-minute manually-guided exposures at ISO 1600 (taken 18 April 2018 and 28 December 2014) and 31 x 1-minute unguided exposures at ISO 6400 (taken 18 Mar 2021). Modified EOS 600D & Revelation 12" f/4 Newtonian reflector telescope.
Frames registered and stacked in DeepSkyStacker software; curves adjusted in Canon Photo Professional; noise reduction in CyberLink PhotoDirector.
An attempt to catch the night sky in Old Headington.
Lots of processing going on here, including stacking of 10 lights with 5 darks in DeepSkyStacker, with further adjustments in Lightroom. Each exposure 20s / F2.8 / ISO1600
Sadly I forgot to switch off SteadyShot and so some blurring of the foreground occurs!
Inspired by Erik's recent image, and being bored after being clouded out for what seems like decades, I thought I'd faff about :)
A starless version of my recent collaboration with Dave Williams. I've left IC 431 and 434 in there because they are nebulae after all. I've also left in Alnitak and his buddy as I'm not good enough to take them out :)
I won't submit this to astrometry, as it may struggle :)
After my first test shot with little exposure time under rather unfavourable conditions already hinted at the famous Horsehead nebula, I tried this again, this time for real. A wonderfully clear night, no moon, and only one target...
I was able to acquire 2 h 8 min in 256 useful subs before my camera's batteries ran out and I got cold...
But I was amply rewarded! This image taken at 300 mm focal length with the TAIR-3S just exactly fits all the famous objects, from the Flame nebula (bottom left) to Orion's bright belt star Alnitak, and of course the Horsehead nebula, to the Running Man nebula and the Great Orion nebula M42 on the top right. I also like the soft but numerous spikes from the slightly stopped-down lens on the brighter stars.
Maybe I'll find some time to compose a HDR image some time, where the core of M42 isn't burnt out and the Trapezium stars are visible, but seeing has to be quite good for this and M42 season is nearing its end here...
EXIF:
Lens: TAIR-3S (300 mm f/4.5) @ f/5.6
Camera: Samsung NX30, mirrorless APS-C, unmodified
Acquisition: 256x 30 s @ISO3200; total 2 h 8 min
Mount: Skywatcher Star Adventurer, unguided, manual dithering
Stacking: Deep Sky Stacker
Processing: fitswork, ImageJ, Aurora HDR 2018
2x2 binning was performed during processing, and a pseudo-luminance channel was created by summing up all three colour channels.
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Phone/iPad app for accurate polar alignment (itunes.apple.com/us/app/ioptron-polar-scope/id564078961?mt=8) or Android phone polar finder app (play.google.com/store/apps/details?id=com.techhead.polarf...)
Stacking Software
Deep Sky Stacker (PC): deepskystacker.free.fr/english/index.html
Sequator (PC): sites.google.com/site/sequatorglobal/download
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30 one minute exposures, ISO 800.
Must try this again when there is no moonlight.
Regular Canon 550D, Skywatcher Quattro 8CF, Skywatcher HEQ5-Pro.
Extras: Baader Coma Corrector, Skywatcher LPF, DeepSkyStacker x2 drizzle.
In the center of this image is an overexposed planet Saturn surrounded by six of the brighter moons including: Iapetus, Titan, Rhea, Dione, Enceladus and Hyperion.
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO ASI2600MC camera running at 0F, 15x60 seconds guided exposures, Sky-Watcher EQ6R-Pro pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: July 23, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Messier 109 is a barred spiral galaxy located in the constellation Ursa Major, it is about 84 million light-years away it has a magnitude of 10.6.
Tech Specs: This image is composed of 50 x 60 second images at ISO 3,200 with 5 x 60 second darks and 5 x 1/4000 second bias frames using a using a Meade LX90 12” telescope and Canon 6D camera mounted on a Celestron CGEM-DX mount (ASI290MC and Canon 400mm lens for guiding). Imaging was done on March 23, 2017 from Weatherly, Pennsylvania.
Aur IC410 NGC1893
Fecha: 08-10-2021, de 22h21m a 00h51m U.T.
Lugar: Las Inviernas, Guadalajara
Temperatura ambiente: de +07.5ºC a +04.0ºC
Cámara: ZWO ASI071MC Pro
Óptica: Telescopio refractor Skywatcher ED120, de 120 mm de diámetro y 900 mm de distancia focal (f/7.5)
Montura: Skywatcher EQ6 Pro Synscan v.3.25
Guiado: Automático con QHY-5 mono y PHD Guiding v.1.14.0, utilizando un telescopio refractor Orion 80mm de diámetro a f/5.
Filtros: Omegon Light Pollution Filter.
Exposiciones:
30 imágenes de 300s cada una, a -05ºC y 100 de ganancia
en total, 2h30min.
30 darks de 300s, a 0ºC y 100 de ganancia
30 bias de 0.001s, a 0ºC y 100 de ganancia
Software: DeepSkyStacker v.4.2.0
PixInsight LE 1.0
Adobe Photoshop CC 2019
Astronomy Tools v.1.6
StarNet++ v.1.1
An emission nebula in the constellation of Cygnus, lying about 5,600 light years away.
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 110, Optolong L'enhance 2" filter, ZWO filter drawer, ZWO asiair plus.
180s exposures.
Best 90% of 50 light frames.
Darks, Flats, Dark Flats & Bias.
Stacked with DeepSkyStacker and processed in PixInsight & Affinity Photo.
First astro session of 2021, and a fairly predictable subject at this time of year! Having said that, I've not imaged M42 with the 12" Newtonian 'scope for several years.
I didn't take many sub-exposures, but instead a small number each at settings between 5-seconds and 2-minutes, ISO 3200, to preserve detail in the bright inner and faint outer regions of the nebula. I stacked each set in DeepSkyStacker software and then combined them as layers.
Additional post-processing: minor curves adjustment in Canon Photo Professional; noise reduction and colour gradient correction in CyberLink PhotoDirector.
Astro-modified EOS 600D & Revelation 12" f/4 Newtonian reflector telescope.
I’ll be honest, I really never viewed Polaris under any magnification before. I’ve always used it as a guidepost to align a telescope or other piece of astronomical equipment. While recently setting up my pier and Meade telescope for the first trial runs, I focused the scope on Polaris to begin alignment, and snapped a few quick pictures. That is when I noticed a little companion star right next to it! Low and behold, Polaris is a multiple star system with an 8.7 magnitude companion (see image in the two o’clock position). Polaris actually has another, closer star, designated Polaris Ab that amatuer scopes can’t resolve. You can see a Hubble view of this star at:
www.spacetelescope.org/images/opo0602d/
Tech Specs: Meade 12” LX90, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 3200, 10 second single exposure using Backyard EOS, no darks or bias frames. Image Date: August 25, 2017. Location: The Dark Side Observatory in Weatherly, PA.
Additional information:
EarthSky (earthsky.org/brightest-stars/polaris-the-present-day-nort...)
Wikipedia (en.wikipedia.org/wiki/Polaris)
HubbleSite (hubblesite.org/image/1847/news/68-multiple-star-systems)