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#snapseed

2 posts2 participants0 posts today

Over the last three nights - a break in the weather for us here in #Boorloo ( #PerthWA ) - I've been targeting the same target after midnight and through to astronomical twilight. It is another target that is familiar to me - #C63 or #HelixNebula sometimes known as the Eye of Sauron Nebula or the Eye of God Nebula.

This is the largest planetary nebula visible to us, only about 200 parsecs away, and is about 2.8 light years across, making it about 22 arcminutes across for the main body, and is about 6500 years old.

So back to the making of this image. Each night I got about five hours of shooting in with my #Dwarf3 , for about fifteen hours total. I had to ditch a bunch of frames as they had dodgy data (atmospheric distortions, musktrails, and, in one case, a passing jet), which brought me down to thirteen hours and thirty-six minutes (816x60s@80). These I restacked using the "Megastack" function of the #DwarfLab app (about 3 hours - executed entirely within the telescope), and then passed the result to the #StellarStudio part of the app (running in the cloud) to optimize the FITS file and run a star removal.

I then exported a PNG of each version, and started post-processing. This consisted of passing the starless image into #Snapseed and boosting the saturation, darkening shadows and so on. Then I took the optimized version and took the shadows to maximum darkness, and reduced the overall brightness somewhat, leaving me with a reduced star version, with almost no nebula visible. Lastly, in Snapseed again, I used the double exposure tool to stack the two parts together.

And here is the result.

Last night one of my targets was an old favourite - C77, the Hamburger Galaxy or Centaurus A.

This galaxy has an incredibly strong radio source at it's core, and this stunning dust cloud in front of it.

Dwarf3, 245x60s@80. Postprocessing in Stellar Studio and Snapseed.

Been experimenting with my Pixel's cameras, and I'll guess you could say that this is the second official photo that is taken with my pixel :3
(Photo is edited with #snapseed)

The "first official photo" is a pet photo, so I can't share that here :/

Do note that my work is licensed under CC BY-NC 4.0, tho feel free to boost :boosts_ok_gay: this post! :neobun_heart:

Jahrelang hat sich nach der Übernahme vom #FotoEditor #Snapseed durch #Google nichts getan, bis auf gelegentliche Mini-Updates mit „Fehlerkorrekturen und Verbesserungen“ gab es keine Neuigkeiten. Es war davon auszugehen, dass Google das Projekt Snapseed aufs Abstellgleis gestellt hat. Nun meldet man sich aber sehr überrasched mit einem großen #Update für Snapseed im deutschen #AppStore zurück.

Mehr zum Thema: appgefahren.de/?p=380906

A couple of days ago I posted about the new #Dwarf3 astro mosaic mode.

That night I tried it out again, this time on the Carinae Nebulae region. This time I got 160 minutes of data across the four quadrants, made up of 30s subframes.

I then identified a bunch of dud frames, stripped them out, and reprocessed them using the inbuilt Stellar Studio service. One pass of this was to de-star the image, and the other to generate a clean mosaic, which I then upped the contrast and darkened the shadows on.

Finally I combined those two images to create a reduced star version.