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Took the opportunity to go back to M31 now that restrictions have gone.
en.wikipedia.org/wiki/Andromeda_Galaxy
Stellar -
Secession Studios
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The Andromeda Galaxy (Messier 31) is the nearest large galaxy to our own Milky Way and one of the most magnificent objects in the night sky. Visible as a faint small smudge from a dark site on a moonless night, M31 is a gigantic aggregation of hundreds of billions of stars at a distance of about 2.5 million light years.
Once thought to be a nebula inside our own Galaxy, its true nature was discovered by Edwin Hubble in 1925, which measured the distance of this "island universe" by studying a special class of pulsating stars known as Cepheids.
M31 is classified as a spiral galaxy with its galactic plane inclined about 13 degrees to our line of sight, and it is therefore seen nearly edge-on. It has, as our own Galaxy, a number of smaller satellite galaxies, the most prominent of which are M32 (the bright, star-like concentration at bottom right at the edge of the spiral arm) and M110, the more extended bright patch at upper left. Astronomers have found evidence of a massive black hole at the center of this galaxy (as is the case for our own Milky Way).
They have also calculated that we are in a collision course with our grand neighbor in space: approaching each other at a speed of about 100 Km/sec, the two galaxies will collide in about 4 billion years and maybe merge into a giant elliptical galaxy.
Image Details:
Telescope: Orion EON ED 80/500 refractor
Mount: Modified Vixen Sphinx (NexSXW)
Camera: Canon EOS 20Da
Light frames: 19 x 3 mins (total: 57 mins), ISO 1600, Daylight WB, no filter
Guiding: Skywatcher 80/400 refractor, Skywatcher Synguider autoguider
Processing: DSS 3.3.4, Adobe Photoshop CS6
A river I came across on my recent trip to M31 which is only 2.5 million light years away from Earth, so it didn't take long to get there.
The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a spiral galaxy approximately 780 kiloparsecs from Earth, and the nearest major galaxy to the Milky Way. The galaxy's name stems from the area of the Earth's sky in which it appears, the constellation of Andromeda.
Wikipedia
Stellardrone - To The Great Beyond
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Die Andromeda Galaxy M31 vom 19.09.2020. Eigentlich war die Aufnahme nur ein Setup- und Autoguiding Test. Jetzt habe ich die Aufnahme dafür benutzt um in Pixinsight und Photoshop etwas zu üben. Mit dem Ergebnis bin ich trotz der kurzen Belichtungszeit eigentlich recht zufrieden.
Ts 80/480mm Triplet-APO
Ts Red379 Reducer
Skywatcher AZ-EQ5-GT
Zwo Asi 183Mc Pro
22x120sek
10 Darkframes
15 Flatframes
M31
Caméra 2600mm zwo
ROUE EWF zwo
filtres
Astrodon H 5mm
chroma lrgb 3mm
Camé guide 120mc-s zwo
Lunette guide évoguide skywatcher 242mm
focuser EAF zwo
Asiair pro
Monture AZEQ6 skywatcher
Lunette FSQ85 TAKAHASHI
B 13X300S
R 31X300S
H 78X300S
R 23X300S
L 19X300S
SOIT 13H40 d'intégration
La grande galaxie d'Andromède.
34 poses de 180s à la lunette de 80ED Esprit et ASI 1600MC + IrCut. Traitement SIRIL et Photoshop. Ciel voilé en fin de session.
M31 is a spiral galaxy in the Andromeda constellation, around 2 million light years from earth.
Image acquisition details:
65x120" Luminance
50x120" Red
50x120" Green
50x120" Blue
A nice evening under the stars with a moonless and cloudless sky in East Tennessee.
Nikon 500mm f/4P ED IF AI-S
Nikon 1.4 teleconverter
@ f8 30 sec 3200 ISO
51 x light frames
11 x dark frames
Stacked in Deep Sky Stacker.
La Galassia di Andromeda ... Rielaborazione con utilizzo del nuovo Tool di Pixinsight Spcc -
Distante poco più di due milioni e mezzo di anni luce dalla terra , visibile in direzione della costellazione di Andromeda , si stima che ospiti circa mille miliardi di stelle ..
150 luce x 120" , 30 Flat , 39 dark flat , 30 dark del 18/19 settembre 2022 , rifrattore takahashi FS60cb F6.2.. cam Asi2600 mc , guida con 60/240 Asi290mm , montatura ZWO AM5..Giardino di casa Mogoro (OR)
Elaborazioni con Pixinsign
migliore risoluzione qui:
M31 Galaxy
William Optics 73 leveled
William optics 50/200 guide with Omegon 224
Ioptron Cem120 mount
Moravian G2 8300 mark II camera with internal filter wheel
Astronomik filters
Cls CCD, R, G, B, Ha 6nm,
CLS 180x25 -5 °
CLS 300x25 -5 °
It has 900x30 -5 °
R 240x21 -5 °
G 240x21 -5 °
B 240x21 -5 °
Acquisition software Nina, Phd2, Ioptron commander and Vnc
Processing software
Pixinsight, Photoshop and star spikes
ASI 294 MC PRO.
72 ED Skywatcher con reductor/aplanador 0.85.
Star Adventurer.
Guiado Asi 120mm Mini.
Ganancia 123/ 30 offset/ -10ºc
304x120s
L-Pro
Bortle 8.
PixInsight,
My first attempt at deep sky imagery.
M31 Andromeda Galaxy had to be my first, as I've seen it for years in my wide field and astro-landscape images. There's a big difference in seeing it with my 14-24mm vs 500mm. While I won't be able to replicate some of the incredible images produced from telescopes and CCDs this was enough to convince me it would be worth attempting a stacked image here to bring out more detail.
Galaxie ANDROMÈDE
Pose : 8h (10 min) 1600 ISO Fuji XT10 - Filtre L-Extreme Optolon
SW200/800 NEQ6 Pro Goto
Vernegues (terrasse)
Date : 4 et 5 Nov 2021
SIRIL et GIMP
This is my second try!
I was able to get more data - 63 x 300second subs
William Optics GT81, ZWO533 MC Pro, ASIAIR
Pro
Processed in Pixinsight
One of my first attempt shooting this fabulous galaxy.
This was shot with a 30mm lens in a light polluted city and obviously heavily cropped. Unfortunately my focus was off but nevertheless this is a huge improvement compared to my first shots.
Diesel-hydraulic shunting locomotive, built by Ganz-MÁVAG, Budapest in 1959, constr. no. 270, located in the steam workshop and depot "Istvántelki Főműhely".
Canon EOS 200D+EF 28-200 USM+EQ3-2, 200mm, ISO 3200, f/5.6, 15x30sec lights, 16 darks, 16 offsets, 12 flats. DSS, FitsWork, Photoshop
my third try, the second with my telescope and the first picture i processed with APP (astro pixel processor).
everything was awesome this night - no clouds, perfect seeing, no wind, no moon. i personally would say that this is one of my best astro images so far, but still there's much to learn :)
camera: Canon 5DIII (not modified)
telescope: Skywatcher Esprit ED80
mount: Skywatcher HEQ5Pro
guiding: 50/180 scope with ToupTek224 guiding cam and PHD2
20x180sec ISO800
15x240sec ISO800
35x240sec ISO1250
all calibrated with darks and flats
total exposure time 4h20min
processed with APP and Lightroom
shot under a bortle 5+ sky at 10% waning moon
Diese Aufnahme von unserer Nachbargalaxie M31fotografierte ich von meinen Dach aus in Hamburg mit den Seastar S50.
Die Belichtungszeit 173 Minuten mit 1038 Einzelaufnahmen.
the first time i used more darks and flats than lighs :) too many clouds and too much fog led to only 48min RGB exposure (and i used frames i would skip easy normally), but hey - M31 will be around next time so more details may be revealed :D
Camera: Canon 5DIII stock
Mount: Skywatcher HEQ5pro
Telescope: Skywatcher Esprit ED80
Guiding: 180mm with ToupTek RGB
16x3min RGB ISO800
15 darks
15 flats
bortle 5+ sky at 53% waning moon
Reworked Image from 14.10.17
I made a Luminance-Channel with the RGB data.
Processing with Fitswork and PixInsight.
Galaxy : M31 + M32 + M110
From Paris
Strong light pollution all around
Sony A7S in EFCS mode
Tamron 150-600 at 600mm F6.3
Star adventurer mount
Shutter speed : 20s
ISO : 3200
161 photos stacked with SIRIL
PP : Lightroom and GIMP
(M31-2017-SIRIL-1gmp-2bl-2+coul+BL+cnt+cor-2-w1600L)
The Andromeda galaxy, 2.5 million lightyears distant, the furthest object in the sky that can be seen with the naked eye. Contains more than 400 billion stars, the bright yellow core has most of the mass, consisting of the oldest yellow stars. The blue regions around the galaxy consist of younger hotter stars. The darker areas consist of dust and gas lanes tracing out the spiral arms of the galaxy. The galaxy is edge on with a slight tilt to our line of site, the warp in the galaxy stands out clearly, this is possibly due to gravitational interactions with the satellite galaxies, or nearby galaxies like M33 in Triangulum. Note the warp is in the outer regions of the galaxy, where the gravity is less strong. The two smaller satellite galaxies are gravitationally tied to Andromeda and interact with it.
Bortle class 6/7 skies.
Exposure time, 2hrs 42m 41s, 233 frames @ ISO 6400, 3200, 1600. Capture and processing time etc approx. 30hrs, several dozen subs were deleted due to slight tracking errors and light pollution, haze, fogging etc.
80mm F6 refractor
Fornax Lightrack mount unguided
Canon 760D, no filters were used.
Post processing in Lightroom and Canon DDP.
Subs collected over several nights in all conditions, ie dodging clouds and haze, moon present and only 3 clears nights with excellent seeing, but I could not dedicate all the time to M31, read on.
Due to the type of mount I use, I cannot track across the Zenith as my 500mm refractor hits against the Fornax drive, I would have to wait for 1 to 2 hours for the sky to move to the west allowing my scope to be set up on the other side of the mount. I would look at objects rising in the east until I could get back to M31 a while later.
1st proper process with Pixinsight, stacked and processed with PI
*Shot details*
24 x 10 min subs @ ISO800
39 darks matched to light temps
82 flats
800 bias
*equipment*
SW 130-pds
HEQ5
Baader LP filter
SW Coma corrector
Canon 7D
Pixinsight
Mein erster Testversuch mit der Asi 183MC am Samyang 135mm.
Dabei rausgekommen sind immerhin 57min verwertbare Belichtungszeit der Andromeda Galaxie.
ZWO Asi 183MC Pro
ZWO AM5N
Samyang 135mm @f4
20x60sek
8x120sek
7x180sek
The Andromeda galaxy, is the nearest neighbouring galaxy, to the milky way. Consisting of one trillion stars and 2.5 million light years distant, its immense gravity has the milky way locked in an irresistible pull toward its final destination, crashing into the Andromeda galaxy and being completely merged into the much bigger galaxy. M31 45 stack 20 sec iso 6400.
I went through and watched the videos about Astro Pixel Processor, I needed to s l o w down and pay attention, especially what sliders can do for your picture......I LOVE the features that APP offers, Like the light pollution removal tool, background calibration and color correction to name a few....I have posted the crappy one earlier, its a few pictures that way>>>>>>
Diesel-hydraulic shunting locomotive, built by Ganz-MÁVAG, Budapest, in 1959, constr. no. 270, located in the steam workshop and depot "Istvántelki Főműhely".
Andromeda Galaxy (M31)
The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged as Messier 31, M31, and NGC 224. Andromeda has a D25 isophotal diameter of about 46.56 kiloparsecs (152,000 light-years)[8] and is approximately 765 kpc (2.5 million light-years) from Earth. The galaxy's name stems from the area of Earth's sky in which it appears, the constellation of Andromeda, which itself is named after the princess who was the wife of Perseus in Greek mythology. (Wikipedia)
Taken over 7 nights.
Details:
Device: Dwarf III Smart Telescope
Filter: Astro
Focus: AF
Tracking: EQ Mode
912 x 30 sec frames
Gain: 60
Darks: 20 frames
Bortle 5/6
Programs: Siril, PixInsight, BlurX, NoiseX, StarX, Photoshop
The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a barred spiral galaxy approximately 2.5 million light-years from Earth and the nearest major galaxy to the Milky Way.
Taken 23-24 Nov 22 under Bortle 4 skies near Oracle, Arizona, elevation 3500 feet.
Used Fujifilm X-T3, Nikkor 180mm on Orion Sirius EQ Mount. Processed using PixInsight. I rejected about 20% of my subs because of temporary turbulence. Skies were exceptionally steady overall.
Tech Specs: (2.9 hr integrated time)
19x120s, f/5.6, iso 3200
42x60s, f/5.6, iso 3200
25x120s, f/2.8, iso 800
45x60s, f/2.8, iso 800
Picture of the Day
ASI 294 MC PRO.
72 ED Skywatcher con reductor/aplanador 0.85.
Star Adventurer 2i.
Guiado Asi 120mm Mini.
Ganancia 123/ 30 offset/ -10ºc
367x120s
L-Pro
Bortle 8.
PixInsight,
DESCRIPTION: My second attempt at photo of M31 Andromeda Galaxy with limited data and limited Photoshop skills :-) …. I looking forward your comments and tips. I would very appreciate your advise how to do better.
OBJECT: M31, Andromeda Galaxy, Constelation Andromeda, apparent magnitude 3,4, apparent dimension 3,2 x 1 arcdeg, FOV 4,1 x 2,7 arcdeg,
GEAR: Nikon Z7 Kolari Full Spectrum + Nikkor 500/5,6 PF, no filter, pixel scale 1,79 arcsec/px, tracking mount iOptron CEM60EC - 3 star alignment, no auto guiding, dew heater.
ACQUISITION: August 20, 2020, Struz, CZ, Exposure 300s, f 5,6, ISO 400, Interval 15 s, Lights 25x, Darks 24x, Bias 24x, Flats 30x. Total exposure time 125 min. Night, no clouds, breeze, 17 C, no Moon, light pollution - Bortle 5.
STACKING AND POST PROCESSING: AstroPixelProcessor (stacking, background neutralization, light pollution removal, calibrate background.), Adobe Photoshop CC 2020 (stretching, black and white point settings, dim stars, enhance DSO, space noise reduction, contrast setting and sharpening). No cropped image, image size 3840 x 2560 px.
Our galactic neighbor, about 2.5 million light years away.
After so much rain and cloudy nights we had a string of clear skies.
I took advantage and pointed my camera to the Andromeda galaxy. Sounds so easy but it took about 35 minutes to get it into the frame.
Why so long you ask? Because even though I knew the general area where it sits in the night sky and could easily find it in wide field binoculars, it does not mean I was seeing it in the narrow field of view of a 450 mm lens. I tried using my dot finder, but that didn't help because the object is too dim for my aging eyes.
So I resorted to switching to a 50mm lens and once I had it somewhere in its wider field of view I did my best to get it centered, all the while taking test shots to see how I had to move because the object is too dim to see in live view. So it is harder than you think if you just have a ball head on the tracker. There are no fine adjustments, just loosening the knobs and hoping that the camera won't slip, which it did frequently. But it eventually worked and I then swapped back to the 450mm and finally had it in view. Not quite centered but that was good enough for me at that point.
These are some of the challenges my particular set of gear presents me with.
Sony A6400
Vintage Nikkor 300mm f 4.5 at f5.6 (acting like a 450mm lens due to the 1.5x crop factor)
62 light frames at 1 minute each
Darks, bias and flats as calibration frames, 30 frames each
IOptron star tracker pro (probably a little over taxed with that heavy lens)
Processed in Siril, Starnet++, Photoshop and finished in Lightroom