Finally got some decent flats for #siril to use during stacking. These were used for processing on Sharpless 115/116 emission nebulas that I targeted earlier this week with the 5 inch refractor, ASI2400MC camera, and the dual band filter.
Sh2-116 is the small round nebula.
#astrophotography

Took these images of the Dumbell Nebula and Iris Nebula last night between the clouds. 10 minutes of 30s color exposures through a 8-inch Cassegrain. Processed in #siril. I was checking out my new config that enables me to point North with a fork mount, without smashing the camera into the scope. Seems to be working 🤷🏾‍♀️

#astrophotography

This is another test photo I took the other night with the dual band filter, NGC 6888 the Crescent Nebula. For this shot I used #siril to separate out and put emphasis on the H-alpha data coming through the filter. Again, satisfactory results for only 30 minutes of exposures.
#astrophotography

I was wondering if one could stack Moon photos in #siril, and yep it works. Here is the Moon on 7/23 taken at f/10 with the Celestron C11. I focused on the craters Catharina, Cyrillus and Theophilus and took 7 exposures and stacked them.

Finally got some clear skies and did about 2.5 hours of M82, the Cigar Galaxy earlier this week! I also solely used SiriL for the post processing and liked it quite a bit, though I feel like the gradient extraction wasn't quite as good as other applications. I'm wanting to find a work flow that integrates it with Photoshop as well when I make the move over to Monochrome imaging. #astrophotography #siril

#Photographie de la #Conjonction #Mars-#M44 d'hier soir.

La #photo à été prise au Canon 700D avec un objectif catadioptrique de 500mm ouvert à f/6.3 (image recadré), accumulation de 119 poses de 0.8s, ISO 3200. Traitement #Siril et #Gimp.

L'aspect oblong de Mars est dû à son déplacement assez rapide sur son orbite. Mars c'est en effet décalée de 22,5" d'arc par rapport aux étoiles durant les 15 minutes qu'a duré l'observation.

#astronomie #ciel :boost_ok:

@j258853 Yes, I use #siril to stack and clean the image of background noise, then Pixelmator to fine-tune contrast and color.

Composite image of the Milky Way over Norfolk Bay

20 photos of the sky at iso2500 stacked in siril, merged onto the lower section - a single photo taken at iso320, 4 minutes. Not as good as I would have liked.

📷 Samyang 2/12mm

#composite #siril #AstroPhoto #MilkyWay #samyang

Created a tutorial on how to use Sirilic to preprocess and Siril to post-process. Saves a ton of time. I'll be doing another to cover multi-session stacking as well.

https://www.youtube.com/watch?v=rLGLcuwCBfw

#Astronomy #astrophotography #space #youTube @Siril_Official #Siril #Astrodon

Gilles, avec l'aide de Matthieu, proposent le Triplet du lion #M65 #M66 #NGC3628
65 x180s soit 3h15
Newton 200/1000
Eq6r pro
Correcteur de coma
APN Eos 6d
Autoguidage lunette 60x240 + ASI 224mc
Acquisition NINA + PHD2
#Siril photoshop + lightroom + faststone
#astrophtography #astronomy #astrodon

I use an unmodified DSLR for my #astrophotography so I miss a lot of red. Here’s the #galaxy NGC 5033 using 120x120s exposures at ISO 200. After stacking I split the RGB channels in #Siril and processed each separately before recombining them to push the red a bit more.

Nach Monaten endlich mal wieder ein klarer Nachthimmel (und das bei akzeptabler Aussentemperatur). Ich habe weitere Belichtungszeit am Irisnebel gesammelt. Bin jetzt bei etwa 4,5h. Leider habe ich nicht gemerkt, dass ich die Kamera um 90° hätte drehen müssen, daher passten alte und neue Belichtungen nicht zusammen und ich musste leider croppen. Egal, endlich mal wieder mit dem Teleskop draußen... 🙂 Techdata: 8"RC@1090mm (cropped), #siril, #startnet++, #gimp.

M31 von gestern Abend. Passt leider nicht ganz aufs Bild :blobcatgiggle:

Skywatcher 200P, EQ-5 GoTo
ZWO ASI 294MC Pro
N.I.N.A., Phd2, #Siril

#Astrofotografie

Check out the documentation on a regular basis, I feed it with questions/feedback we have since the release of 1.2.0-beta1

#Siril #freeastro #opensource #Astrophotography
@nebulaphotos

I'm testing out the live-stacking feature in the latest beta version of @Siril_Official tonight!

@alex and I are photographing the Horsehead and Flame Nebulae from our NYC fire escape.

#SIRIL #astrophotography #Barnard33 #HorseheadNebula

Thor's Helmet - The sky only partly complied with my request to be clear and transparent.

Astro-Tech AT130EDT @f5.6
Optolong L-eNhance
Astro-modified Canon T6i

Lights - 31 300s ISO1600
Flats - 75
Bias - 75
no darks

Processed in Siril 1.1 using star removal and full synthesis before returning them.

#astrophotography #canonphotography #canont6i #amateurphotography #deepsky #backyardastronomy #utahastrophotography #uvacastrophotography #siril #astrotech #at130edt

Tonight’s astrophotography challenge was to target the Orion Nebula and Pleiades star cluster untracked with my Canon SL1, 55-250mm EF-S kit lens (fully zoomed to 250mm, f5.6), ISO 800. These are 150 x 1s photos stacked with #siril and processed with #gimp. I am still learning, and these photos are still noisy - but I am surprised what you can capture with a basic DSLR and #foss software.

Last night was the clearest night we’ve had since I started doing #astrophotography in August. This was my first attempt at using “Generalised Hyperbolic Stretch Transformations” in the latest Dev version in #SiriL. M81 & M82. I got as much of the “starburst” feature in M82 as I could with my unmodified Nikon D750.

Der Orion-Nebel von gestern Abend. 😊

Equipment: Skywatcher 200P 1000/200, Skywatcher EQ5 Pro Synscan, ZWO Asi294MC Pro
Software: N.I.N.A, Phd2, #Siril, Lightroom

100 Lights je 120s

#Astrofotografie

Here's the Monkey Head from last night.

Astro-Tech AT130EDT & AT130 .8x flattener/reducer for F5.6

Optolong L-eNhance filter
Astro-modified Canon T6i
Processed in #Siril 1.6 using pseudo-HOO and the following pixel math:

R: Ha
G:((OIII*Ha)^~(OIII*Ha))*Ha + ~((OIII*Ha)^~(OIII*Ha))*OIII
B: OIII

Some minor final adjustments in Gimp to remove a dust bunny that the flats didn't get.

28 lights - 360s ISO1600
60 flats
60 bias
no darks

#astro-tech #optolong #lenhance #astrophotography #canon #t6i