Ma dernière session d'astrophoto de samedi soir. Un amas de galaxies (Abell 2151) dans la constellation d'Hercule. Plein de jolies petites tachounettes. Mais va falloir que je me résolve à nettoyer le capteur de ma caméra, il y a un gros pâté que je n'arrive pas à éliminer complètement pendant le traitement photo... 😱
Bon faut pas trop grossir non plus, les étoiles ne sont pas très rondes, je reprendrai le traitement + tard au calme... #astrodon#astronomie#astronomy#galaxies#siril#ekos
Je n'avais pas fait d'astrophoto depuis ... longtemps! Je m'y suis remis la nuit dernière, profitant des conditions météo enfin idéales. J'ai pas mal pataugé avant de pouvoir prendre une série d'images de l'amas globulaire Messier 5 dans la tête du Serpent. Les logiciels d'acquisition et de traitement ont beaucoup progressé en 18 mois... Le weekend n'est pas fini, encore des nuits blanches à venir ! #astrodon#astronomy#astronomie#DeepSky#astrophotography#stars#Ekos#Siril#StarClusters
I spent this weekend working with our images of the Orion Nebula. While this image is a work in progress, it notably marks my first attempt at employing the HDR technique to enhance the details in the nebula's luminous core. It also demonstrates how much progress we have made over the past year.
Imaging by @alex NYC - Bortle 9 / 640 x 180s subs and 125 x 15s subs / Sony a6300 (ISO 400) / Z61 (f5.9, 360 mm) /AM5 /ZWO asi120mm mini
The following shot of the #Orion#nebula is 2.5 hours of integration using the Celestron C11 at f/10 and using a dual band Ha/OIII filter. Then stretched in #Siril to try to balance the Ha (orange) and OIII (blue) bands. This was taken on the 11/5. In other words I’ve spent the last 5 days fussing over it. #astrophotography#Astrodon
Here is the final result of our other long-term October project: The Andromeda Galaxy. Like our revisitation of the Pleiades star cluster, this image demonstrates the progress we have made over the past year.
Imaging by @alex NYC - Bortle 9 / 220 x 180s subs, Sony a6300 (ISO 400) / Z61 (f5.9, 360 mm) /AM5 /ZWO asi120mm mini
I’ve tried to use #ASTAP previously for stacking but was never satisfied with the results. Several updates were made last month that improved it giving tighter stars and a cleaner image to my eyes. I plan on using it for stacking going forward. I will continue to use #siril for stretching. Here’s Messier 33 that uses that process. #astrophotography#Astrodon
I was talking to my son on the phone yesterday and I told him I suck at stretching my #astrophotography images, and he encouragingly said that I’d figure it out. Motivated, I spent time today working in #siril and stretching a month’s old shot of M42. I think I made progress. #Astrodon
Took this Wednesday night, NGC 7023, Iris Nebula. Apparent mag 6.8. Telescope = 8” SCT with a cooled color cmos camera. I stacked 60, 2-minute subs using #Siril. All I can say is it sucks less than my previous work. Last time I did the Iris Nebula it came out looking like a bag of black sand. 🦧#astrophotography
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
OK so it's not the greatest version of M31 ever, but I was caught out by surprise clear skies last night, so flung the Dwarf.ii scope up in a matter of minutes and left it overnight.
It shot 511 frames from which I've been able to make this :)
(Also: wow, @Siril_Official is coming along leaps & bounds these days... :) )
Here is our latest project after several weeks of terrible astrophotography weather. With a new AM5 mount, we were able to capture two- and three-minute subs. For comparison's sake, we chose to re-image the Lagoon and Trifid Nebulae.
Imaging by @alex#NYC#Bortle 9 / 110 x 120 and 180s subs, Sony a6300 (ISO 400) / Z61 (f5.9, 360 mm) /AM5 /ZWO asi120mm mini
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