Image enregistrée avec les ajustements inclus.

Working on the assumption that I'm unlikely to add to this in 2012, these are my efforts for the last 12 months :)

2012 was not a good year weather wise, even by UK standards. I struggled to find 12 images to go in this, but that could be down to the fact that I tend to spend more time on each image these days. Anyway, thanks for all your kind comments and faves over the last year, and I wish you all a peaceful Christmas, and a multitude of clear skies in 2013 :)

Andromeda galaxy shot from my driveway on a dark autumn evening. This is the only benefit I see from changing the clocks back... earlier night sky viewing. 5 images (300mm - 30 seconds each) on an iOptron SkyTracker stacked in DeepSkyStacker to reduce noise.

Manually guided for 7 x 7-minute exposures at ISO 1600, f/6.25. Modified EOS 600D & Sky-Watcher ED80 refractor, piggybacked on a Celestron C8 telescope for guiding.

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

Another collaboration with my northern buddy, Dave Williams, who once again kindly provided the Ha, which was used as luminance. I also layered in the M42 I did earlier this year to improve the colour. This again demonstrates just how much the ED80 leaves the 200p in its wake :)

RGB :

SW ED80/EQ5

Nikon D70 modded, Baader Neodymium filter

31 x 240secs iso 800, 30 x 8 secs iso 800 for the core (2 hours 8 minutes)

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

Stacked in DSS and processed in CS5

Ha (Dave Williams):

10 x 600 secs (I hour 40 minutes)

250mm Hasselblad lens at f4

Moravian G2 8300

5nm filter

Messier 12 (M12 or NGC 6218 in the New General Catalog) is a globular cluster in the constellation Ophiuchus. It is also referred to as the “Gumball Globular”. It was discovered in 1764 by the French astronomer Charles Messier who described it as a “nebula without stars”. M12 is approximately 15,700 light-years distant. You will definitely need binoculars or a small telescope to see this cluster. This cluster contains about 200,000 stars, the brightest of them are about 12th magnitude.

Observation data (J2000 epoch)

Class: IX

Constellation: Ophiuchus

Right ascension: 16h 47m 14.18s

Declination: –01° 56′ 54.7″

Distance: 16.44 ± 0.16 kly

Apparent magnitude (V): 6.7

Apparent dimensions (V): 16′.0

Tech Specs: Meade 12” LX-90 SCT Telescope, Antares Focal Reducer, ZWO ASI2600MC camera running at 0F, 40 x 60 seconds, Celestron CGX-L pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: July 23, 2025. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).

Here is an image I took on the evening of December 27, 2016 of this large, but faint galaxy called the Sculptor Galaxy (also known as NGC 253, Silver Coin or Silver Dollar Galaxy). This was my first time imaging this galaxy and I couldn’t believe how large it was, nearly filling the camera view (I’ve been imaging planetary nebula, so left the focal reducer off). With the high winds and clouds rolling in, this is what I ended up with.

Tech Specs: This image is composed of 68 x 15 second images at ISO 5,000 with 5 x 15 second darks and 5 x 1/4000 second bias frames using a Meade LX90 12” telescope and Canon 6D camera mounted on a Celestron CGEM-DX mount. Imaging was done on December 27, 2016 from Weatherly, Pennsylvania.

Online references:

Wikipedia (en.wikipedia.org/wiki/Sculptor_Galaxy)

APOD (apod.nasa.gov/apod/ap111220.html)

Skyhound (observing.skyhound.com/archives/oct/NGC_253.html)

Hi,

Here is one of my first astrophotograph of the deepsky I took at prime focus of my newtonian telescope with my canon T3i camera (unmodded)

It is a 10-image-stacked picture of 30 seconds each.

Both staking and processing were made by a friend using PixInsight sofware. Thanks to him :)

It is actually an update of my previous version inwhich I had used Deep Sky Stacker freeware and lightroom. Click here.

So, how to find the difference between PixInsight and DSS/Lightroom ?

We clearly see the powerful process of PixInsight !

Thanks for reading ;)

Technical Cards :

10 x 30 secs

ISO 1600

800 mm

f/4

Canon T3i

+ 10 darks

Nikon d610(stock), iso800

TS-Optics 72mmf6

total of 30 minutes with 240sec subs

guiding:

ZWO asi120mcs

TS 50mm/f3.6 guidescope

Tracking: Skywatcher Star Adventurer

software:

guiding: phd2

Stacking: Deepskystacker 4.2.2

Processing: Adobe Photoshop, GradientXterminator, Nik software, HLVG, Adobe Raw

T: WO GTF81

C: ZWO ASI1600MC-Cool

M: iOptron iEQ45-Pro

G: No guiding

Gain: 139

Lights: 100 x 2s

Darks: No

Flats: No

Bias: No

Capture: Sharpcap

Processing: DSS; PS.

Compilation de 12 images (2 darks) de la galaxie d'Andromède, M31. Programmes: Deepskystacker et Photoshop CS4. D4+Nikkor 200-400 F/4+ TC-14E II+ Déclencheur souple MC-30+ Monture motorisée. Expositions entre 30 et 130s.Total de 1351 secondes.

Stack of 12 images (and 2 darks) of the galaxy Andromeda (M31). Softwares: Deepskystacker and Photoshop CS4

D4+Nikkor 200-400 F/4+ TC-14E II+ Remote trigger MC-30+ Motor mount. Exposures between 30 and 130s.Total of 1351 seconds.

Comet Leonard is the astronomical event of the year, discovered in January 2021 is located at 35 million kilometers from our planet. As an example, the moon is at 384.400 km.

In its elliptical path with our Sun, it is estimated that it visits us every 40.000 years and to observe it you have to get up early, at 4am. It is not visible to the naked eye, but it can be seen with binoculars at its closest to the earth, which is estimated for December 12.

The photos are taken with an equatorial tracking mount, similar to those found in observatories, to increase the exposure time and prevent stars from looking like traces. Different shots of 30s, 50s and 60s are shot with different ISOs which are then stacked to bring out the tail and details.

El cometa Leonard es el evento astronómico del año, descubierto en enero de 2021 se encuentra a 35 millones de kilómetros de nuestro planeta. Como ejemplo, la luna se encuentra a 384.400 km.

En su trayectoria elíptica con nuestro Sol, se calcula que nos visita cada 40.000 años y para observarlo hay que madrugar, levantase a las 4am. No es visible a simple vista, pero si se apreciara con unos prismáticos en su máximo acercamiento a la tierra, que se estima para el 12 de diciembre.

Las fotos están obtenidas con una montura de seguimiento ecuatorial, similar a las que tienen los observatorios, para aumentar el tiempo de exposición y evitar que las estrellas se vean como trazos. Se lanzan diferentes tomas de 30s, 50s y 60s con diferentes ISO que luego se apilan para resaltar la estela y los detalles.

Date: 07/12/2021

Location: Culla - Castellón (40°18'58.9"N,0°09'39.4"W,828m)

Tracker: Sky-Watcher AZ-GTi

Single shoot with camera Sony ILC3-A7M3 APS-C Mode

Lens Sony FE 100-400mm F4.5-5.6 GM OSS

ISO 10000, 20seg, f5,6

©2021 All rights reserved. MSB.photography

Thank all for your visit and awards.

My attempt at capturing comet C/2023 A3 (Tsuchinshan-ATLAS), with the anti-tail also visible. (y)

10 x 25s exposures, stacked in DeepSkyStacker (Comet Stacking) and edited in Photoshop 2025

Canon EOS 200D + Tamron 100-400mm f/4.5-6.3 Di VC USD + Sky-watcher Star Adventurer Pro

⚙️ 25s; f/8; ISO-800; 208mm

M92 Globular Star Cluster

Ancora rumorosetta... sgrunt! purtroppo poca integrazione, la luna stava sorgendo, ma è pur sempre un inizio

Still a little noisy, sgrunt! unfortunately not a lot of integration time, the moon was rising, but it's a beginning

:)

♫

The Horsehead Nebula is approximately 1500 light years from Earth. Also known as Barnard 33 in emission nebula IC 434, also called as 'the Flame', is a dark nebula in the constellation Orion. The nebula is located just to the south of the star Alnitak, which is farthest east on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. (from from wiki).

dettagli dello stack:

Telescopi di acquisizione: APO Triplet 130/910 mm, TecnoSky 102ED

Camere di acquisizione: Canon EOS 50D, Canon / CentralDS EOS Astro 50D

Montature: Sky-Watcher EQ6 Pro, Sky-Watcher HEQ5

Telescopi guida: 80/600

Camere guida: lacerta mgen2, LVI Smartguider 2

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, Hutech IDAS LPS-V4

Date: 25 febbraio 2012, 25 novembre 2013

Pose:

Hutech IDAS LPS-V4: 6x550" ISO800 bin 1x1

Orion SkyGlow 2" Imaging Filter: 6x400" ISO1600 -18C bin 1x1

Orion SkyGlow 2" Imaging Filter: 2x150" ISO2500 -18C bin 1x1

Integrazione: 1.7 ore

Dark: ~21

Flat: ~22

Temperatura: -3.00

Orion's belt,flame nebula,horsehead nebula

Total exposure: 13 min 30 sec

Light frames : 27 x 30",No Dark,flat frames

ISO: 800

Camera: Nikon D7500

Lens: Samyang 135mm @f2.8

Equatorial Mount: Ioptron Skyguider pro

Bortle class: 4

Stacked and processed using Deepsky stacker, Siril,Images Plus and PS

Image processing : Background extraction,Arcsinh/hyperbolic sine stretch,

and Green noise removal,low pass filtering

First Attempt

10 x 30 secs (5 minutes) , ISO 1600, F/4, 800 mm

+

10 darks

Canon T3i + 200/800 mm reflector telescope

***************************************************************************

Photographed at Algonquin Provincial Park, Ontario, Canada

(285 km by road north of Toronto)

between 23.45 and 00.01 EDT

* Altitude of the cluster at time of exposures: 40°

* Temperature 21° C.

* Total exposure time: 10 minutes

* 660 mm focal length telescope

___________________________________________

Description:

This large, pretty and bright open cluster of stars - which happens to lie in our line of sight in front of one of the bright and star-dense arms of our Milky Way galaxy - is a favourite observational target of northern hemisphere astronomers on summer evenings.

From Wikipedia:

"The Wild Duck Cluster is one of the richest and most compact of the known open clusters, containing about 2900 stars. Its age has been estimated to about 250 million years. Its name derives from the brighter stars forming a triangle which could resemble a flying flock of ducks (or, from other angles, one swimming duck)."

For a wider angle view of Scutum and M11, made with a 540 mm focal length telescope in September 2016, click here:

www.flickr.com/photos/97587627@N06/30487082573

For a version of this photo WITH LABELS, click on your screen to the RIGHT of the photo, or click here:

www.flickr.com/photos/97587627@N06/54730082448

___________________________________________

Technical information:

Nikon D810a camera body on Tele Vue 127is (127 mm - 5" - diameter) apochromatic refracting telescope, mounted on a Sky-Watcher EQ6-R PRO SynScan mount

Ten stacked frames; each frame:

660 mm focal length

ISO 3200; 1 minute exposure at f/5.2; unguided

With long exposure noise reduction

Subframes registered and stacked in DeepSkyStacker;

Processed in Photoshop CS6 (highlights / shadows, levels, brightness / contrast, colour balance)

***************************************************************************

There's a few galaxies in this. Apart from all the chunky ones, there are loads of little fuzzy ones as well. Cool. Not quite Hubble Ultra Deep Field, but not bad from my back garden :)

This is part of the Virgo Supercluster of galaxies, which comprises as many as 2000 galaxies. Our Local Group, which includes us (the Milky Way) and Andromeda, is in the suburbs of the Virgo Supercluster.

This is just over 7 hours of ten minute subs for luminance and 2.5 hours of 5 minute subs for the RGB, what there is of it!

ED80 with 0.85 focal reducer

HEQ5 Pro, belt driven

Cooled mono Canon 450D, CLS CCD filter for Luminance

Modded Canon 500D for RGB

APT, PHD, CDC, EQMOD

Stacked in DSS, processed in CS5

NGC 7293

Imaging cameras: zwo optical ASI6200mm pro

Mounts: SkyWatcher EQ8

Focal reducers: Teleskop-Service 0.79X

Software: DeepSkyStacker x64 by Luc Coiffier, Tony Cook, David C. Partridge DeepSkyStacker x64 · Photoshop

Filters: Baader 2" 8,5nm OIII · Baader 2" 7nm Ha

Dates:Sept. 1, 2021

Frames: 30x180" (1h 30')

Integration: 1h 30'

Follow me on Facebook: NJE Photography

A first attempt at photographing the Orion nebula. Using a focal length of 135mm, I was able to also capture the Horsehead and Flame nebulae in the frame. You can just make them out towards the bottom right of the image. Still lots to learn!

Canon 5D MkII; Canon 135mm f/2L; iOptron Skytracker

- 5 x 30" @ f/2.8 + 5 x 30" dark frames

- 10 x 30" @ f/4 + 10 x 30" dark frames

- Stacked in DeepSkyStacker and edited in Photoshop and Lightroom

Also known as the Beehive cluster. M44 lies at 577 light years from Earth in the constellation of Cancer and spans about 15 light years across. In total there is estimated to be over 1,000 stars associated with this cluster. At around 600 million years old this cluster is quite young, when compared to our Sun's 4.5 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, Optolong L'enhance 2" filter, ZWO asiair plus.

Stacked with DeepSkyStacker and processed in StarTools.

Yet another collaboration between Dave Williams (Ha) and myself (RGB). After a month without a single usable clear sky, we finally got one, so I quickly read all the user manuals for my kit again and got out there. Freezing cold, but I suffered in silence (as there was no-one else there) and soldiered on. Managed 2 hours of 3 minute subs and combined Dave's Ha as luminance, as before.

I may add more RGB as and when the opportunity arises (hopefully this side of Christmas) but for the time being I'm quite pleased with this effort.

RGB (Me) :

SW ED80/EQ5

Nikon D70 modded, Baader Neodymium filter

39 x 180secs iso 800 (1 hour 57 minutes)

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

Ha (Dave Williams):

10 x 600 secs (I hour 40 minutes)

Nikon 180mm lens @ f2.8 (heavily cropped)

Moravian G2 8300

Astrodon 5nm Ha filter

Stacked in DSS and processed in CS5

This comet is in a hurry. The star trails show how much it moved during the time I was shooting.

Total exposure time: 18 mins

Telescope: Tele Vue-60 APO refractor

Mount: Vixen Super Polaris

More details (including a finder chart) at:

www.skyandtelescope.com/astronomy-news/comet-46p-wirtanen...

I've always been fascinated how the Andromeda Galaxy M31 and the Triangulum Galaxy M33 form an almost straight line with the bright star Mirach (beta Andromedae), which also lies nearly symmetrically in the middle between these galaxies of our local group.

I choose this motif to try out my newly acquired (though used...) Canon 50 mm f/1.4 - something I didn't have in my lens collection so far. I'm quite happy about both the brightness of the image, and about the good star rendering until about 80% radius from the image center. Outside, there's some coma, but not too bad, and stopping down a little to f/2.2 helped a lot (and is still rather fast!).

I was surprised how much detail of the galaxies is already rendered by a 50 mm lens. If you look carefully, you can even spot the dwarf galaxy Mirach's Ghost (NGC 404) next to a diffraction spike of Mirach approximately at the 4 o'clock position.

Image information:

Lens: Canon 50 mm f/1.4 USM @ f/2.2

Camera: Canon M50 Mk. II (APS-C, with adapter to Canon EF)

Filter: none

Mount: Skywatcher Star Adventurer

Acquisition: 72x 90 s (+ a few images with accidentally longer exposure) total ~1h 55 min, @ ISO 100

Correction: darks, flats

Stacking: Deep Sky Stacker

Processing: SiRiL, fitswork, Aurora HDR 2018

Taken with a TMB92L, Hutech-modified Canon T3i DSLR, Orion SSAG autoguider and 50mm guidescope, and Celestron AVX mount. Consists of 42 240-second light frames and 45 240-second dark frames, all at ISO 800, as well as 60 flat and 100 bias frames. Captured with BackyardEOS, stacked in DeepSkyStacker, and processed in Photoshop.

Skywatcher 150PDS

Celestron CG5

Nikon D90

80 x 30 s @ ISO1600

Total exp.: 40 min

DeepSkyStacker

GIMP 2.10

Telescopi o obiettivi di acquisizione: Orion Mini Guidescope

Camere di acquisizione: SVBONY SV305

Montature: Celestron SLT

Software: DeepSkyStacker · ASTROSURFACE · PixInsight 1.8 Ripley Pisinsight 1.8 · photoshop

Date:12 Febbraio 2021

Pose: 64x60"

Integrazione: 1.1 ore

Giorno lunare medio: 0.71 giorni

Fase lunare media: 0.57%

Stacking della galassia di Andromeda.

51 light, 19 dark, 22 bias.

Montatura equatoriale con Minitrack LX, ma puntamento approssimativo causa polare non in vista, quindi tempi del singolo scatto relativamente brevi.

Circa 8000 stelle visibili nel campo inquadrato (galassia esclusa...)

***************************************************************************

Photographed at 05.01 EDT from the football pitch at Northern Secondary School in mid-town Toronto, Ontario, Canada

THIS PHOTO WAS JUST FOR FUN, to see what this well-known star cluster would look like from a terrible astrophotography location!

Sun 13.5° below the horizon

Altitude of M45 at time of exposures: 54.6°

______________________________________________

Description:

This most famous of all open star clusters is readily visible to the unaided eye even in the middle of a light-polluted city. Morning twilight was starting to creep into the eastern sky when I grabbed the subframes to make this image, so the sky was starting to turn a little blue.

Even though the subframes from which this stacked images were made were only 10 seconds in length, at ISO 200, stars to 14th magnitude can be seen if you look carefully.

For a version of this photo WITH STAR LABELS, click on your screen to the RIGHT of the photo, or click here:

www.flickr.com/photos/97587627@N06/54788514023

_____________________________________________

Technical information:

Nikon D810a camera body on Tele Vue 127is (127 mm - 5" - diameter) apochromatic refracting telescope, mounted on a Sky-Watcher EQ6-R PRO SynScan mount

Eleven stacked frames; each frame:

660 mm focal length

ISO 200; 10 sec. at f/5.2; unguided

(with LENR - long exposure noise reduction)

Subframes registered in DeepSkyStacker;

Processed in Photoshop CS6

***************************************************************************

15 x 2-minute manually-guided exposures, ISO 3200, f/4. Modified EOS 600D & Revelation 12" Newtonian reflector telescope.

Frames registered and stacked in DeepSkyStacker software; curves adjusted in Canon Photo Professional; noise reduction in CyberLink PhotoDirector.

This is part of the area designated IC 1396 in Cepheus, which includes The Elephant's Trunk Nebula, at the bottom, looking a tiny bit like an elephant's trunk :)

Long time since I did a collaboration with my frozen northern buddy Dave Williams. This is 5 hours of 300 second subs @iso 800 for the RGB (mainly R!) and Ha kindly provided by Dave and used as luminance.

A little noisy in places - the DSLR RGB input provides that, so not a lot I can do about it until the next kit upgrade on 12th Never. :)

Messier 41 (also known as M41 or NGC 2287) is an open cluster in the constellation Canis Major, sometimes referred to as The Little Beehive Cluster. The cluster covers an area about the size of the full Moon. It contains about 100 stars, including several red giants the brightest of which has spectral type K3, apparent magnitude 6.3 and is near the center, and some white dwarfs.

Observation data (J2000 epoch)

Right ascension: 06h 46.0m

Declination: −20° 46′

Distance: 2,300 ly

Apparent magnitude (V): 4.5

Apparent dimensions (V): 38 arcmin

Estimated age190 million yrs

Tech Specs: Williams Optics Redcat51 Telescope, ZWO ASI071MC camera running at -10F, 43 x 60 seconds, Sky-Watcher EQ6R-Pro pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: February 6, 2024. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).

Not sure this is my best image of this subject, but I was amazed to get this result from just 3 x 3-minute light frames! I couldn't get any more, as the Earth rotated the nebula behind an obstruction.

Some star-bloating towards the right again, but not as bad as the Veil image.

Manually, off-axis guided for 3 x 3-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; noise reduction via CyberLink PhotoDirector.

ohne Teleskop! Aus dem stark lichtverschmutzten Ruhrgebiet;

Orionnebel mit D850+Sigma 2,8/150-300, hier 300 mm,

Belichtung 15 sec. bei ISO 500 digital vergrößert um Faktor 4 (lange Seite); Nachführung mit Celestron AVX

30 Einzelaufnahmen stacking mit DeepSkyStacker; Nachbearbeitung nur in Lightroom

Without Teleskop! From a high light pollution area (Ruhrgebiet)

Orion Nebula with D850+Sigma 2.8/150-300, here 300 mm,

exposure 15 sec. at ISO 500, digitally enlarged by factor 4 (long side); tracking with Celestron AVX

30 single exposures stacked with DeepSkyStacker; post-processing only in Lightroom

View M31 - Andromeda Galaxy from Sultan Basin on Black

View M31 - Andromeda Galaxy from Sultan Basin Map/EXIF

Nikon D7100 + 400mm f/2.8 @ 400 mm - 300.0 sec at f/4.0, ISO 800

Manual mode @ 0 EV E.C - Pattern metering - no flash

Subject Distance: unknown

Mount: Losmandy G-11

Autoguider: None

Lens: Nikon 400mm 2.8 @ 400mm

Camera: NIkon D7100

Limiting Magnitude: 6.2

Processing: PixInsight, Lightroom 5

47°55'20" N 121°45'14" W, 797.2 ft

Sultan Basin Road

Sultan, Washington, United States

Taken on 09.08.2013, uploaded on 09.09.2013.

©2013 Adam James Steenwyk. Please contact me at ajamess [at] gmail [dot] com if you would like to use this photo. Blog: www.f128.info

The Pisces Cloud, also known as Arp 331, is a small chain of elliptical galaxies in the constellation Pisces between the Andromeda Galaxy and the Triangulum Galaxy that are roughly around magnitude 13.0 and lower. This group is actually part of the Perseus-Pisces Supercluster. The photo contains many more galaxies than are shown, I have identified just easily identifiable galaxies.

This image is composed of 100 x 15 second images at ISO 3200 with additional dark and bias frames. Tech Info: Meade LX90 12” telescope, Antares Focal Reducer, and Canon 6D camera. Imaging was done on September 1, 2016.

Sources for additional information:

SpaceBanter.com (www.spacebanter.com/showthread.php?t=144276)

Astronomy-Mall (www.astronomy-mall.com/Adventures.In.Deep.Space/peculaut.htm)

Taken with a TMB92L, Canon T3i DSLR, Orion SSAG autoguider and 50mm guidescope, and Celestron AVX mount. Consists of 30 180-second light frames and 18 180-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.

Messier 81, spiral galaxy in the constellation Ursa Major.

Stacked with DeepSkyStacker. 60 lightframes of 1 minute.

Die Milchstraße, auch Galaxis, ist die Galaxie, in der sich unser Sonnensystem mit der Erde befindet. Entsprechend ihrer Form als flache Scheibe, die aus Milliarden von Sternen besteht, ist die Milchstraße von der Erde aus als bandförmige Aufhellung am Nachthimmel sichtbar, die sich über 360° erstreckt.

Crescent nebula is an ionized gas nebula about 5000 light years from Earth.

⏱️ 6h (93 x 4min ISO 800 frames)

Kaunas, Lithuania (Bortle 8 skies)

📅 September, 2021

Setup:

📷 Canon EOSR unmodified

🔭 Skywatcher Explorer 150PDS

️ Baader MPCC and IDAS LPS-D2 filter

⚙️ Skywatcher HEQ5 Pro

↖️ Guiding with ZWO ASI 120MM Mini + ZWO 30mm Mini Guide Scope + PHD2

💻 Stacked and edited with DeepSkyStacker and PixInsight

An image of the Double Cluster in Perseus taken this evening with a ZWOASI183MC Pro camera attached to a Celestron C6-N reflecting telescope. 36 thirty second images were stacked with DeepSkyStacker and processed with Adobe Lightroom.

Here's Comet C/2013 US10 (Catalina) above Alpha Centauri at about 8pm last night. At the moment it is gliding through the Milky Way starfields in the southern constellation Circinus. This untracked image is a 22 x 4 sec exposures taken with a Canon 6D and 70-200mm lens at f/4 and 21800 iso, stacked using DeepSkyStacker and processed in Lightroom 5.

Processed on a laptop... so it may need some adjustments!

==================================================

The Andromeda Galaxy (M31). This is almost the full frame of the Canon 5D Mark II using a William Optics Flourostar 110 telescope (it's 770 mm and effectively f/7),.iOptron ZEQ25 Mount; Canon 5D Mk II @ 6400 ISO, 30 seconds x 50 photos; Bahtinov mask for focusing.

[20131205_DARC_II]

GSO 10" f/4 Newtonian on CEM60,SX Trius pro 694,filterwheel and OAG with Baader MPCC coma corrector.

4x900sec Ha,4x900sec OIII

both sets stacked in Deepskystacker,BiColour (Ha,OIII,OIII) assembled and processed in Photoshop using Annie's action tools.

Taken early hours 21/07/16

Following comments made by Jean Jacquinot on my last iteration of this thing, a committee meeting was convened, and the man from the frozen north agreed that some detail had been lost. It was decided that a reprocess was in order, and this has now been actioned. Above is the result :)

Does Flickr sharpen images when you upload them? It certainly seems to. Anyway, a full reprocess, colour tweaked in places, etc. etc. Better I think. Thanks to Jean for pointing out my previous oversight :)

Last iteration here, for comparison.

I now regard the horsey in the same light as Andromeda, so I'll say goodbye to it until next year :)

RGB (Moi):

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 (Dave Williams):

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

Sadr Region or Gamma Cygni.

Camera: Canon 4Ti modified.

Telescope: Orion 80mm ED

Exposure time: approx 1hr 30 mins

Each 7 minutes exposure, stacked using DeepSkyStacker. Final processing on PhotoShop CS.

Nikon d90(mod)

Nikkor 80-200mm f2.8

settings: 125mm, f4, iso400

2 panels of 4hrs each, 300 seconds subs

guiding:

ZWO asi120mcs

TS 50mm guidescope

Tracking: Skywatcher Star Adventurer

software:

guiding: phd2

Stacking: Deepskystacker 4.2.2

Processing: Adobe Photoshop, GradientXterminator, Nik software, HLVG

The Pleiades and the Vulture Head Nebula

H-alpha modified Canon EOS R with William Optics RedCat 51 on iOptron Skyguider Pro; 60 images, 90s each, stacked in DeepSkyStacker (darks, flats and bias frames, unguided).

Right, I'm officially sick to death of Andromeda! This is now 16 hours of varying sub-lengths and ISO settings, and I've reached the point where my skies are going to yield no more. Quite depressing to think that 16 hours here produces the same result as perhaps an hour under dark skies - so this is my final attempt ;) (Wrong!). Better processing than the last shocking effort I think - a little more subtle, and some fainter detail evident (and some detail less evident as the contrast has been turned down a bit!)

Having spent a fortnight thinking about very little else, I can now get on with my life :)

SW ED80/EQ5

Nikon D70 modded, Baader Neodymium filter

16 hours of 4 - 12 minute subs @ ISO 640 - 1600

Guiding: Quickcam Pro4000/9x50 finderscope, PHD

Stacked in DSS and processed in CS5