Driveway Astronomy

IC410 The Tadpoles

Only one hour of Ha while waiting for another target to clear my house in the east. Should have spent the night on it! Lots of playing in PixInsight to bring out the mass of nebulosity and also get the tadpoles to stand out. Stumbled upon Exponential Transforms to bring out the nebula, then applied HDRWavelets to emphasize structure. Using HDRWavelets alone tends to deminish the overall nebulosity on images like these. But on some monitors it was still too stark so I added both versions, then did a slight curves to the low end of the highlights for more nebulosity. I used the clone stamp tool in PixInsight on my hot pixel trails as either median or sigma combine left too much noise.

Two bottom images added using Maximum Sample Operator in PixInsight Pixel Math:

 

Two bottom images below added together in Pixinsight:

With HDRWavelets:

Here it is with just some simple histogram transforms, no other processing. Possibly a smoother and more "natural" look but seems to have less definition. Could definitely use much more data to play with!

Camera: MX716

Telescope: ZS66SD

12x300seconds withSchuler 10nm Ha filter

Average combined in AstroArt 3, all other processing in PixInsight

Comet 17P/Holmes

Addtional non-linear stretch for additional coma, otherwise same info as below

Nov. 3, 2007

LRGB 20/10/10/10 in 30 second subs

Camera: MX716

Telescope: WO ZenithStar 66 SD

Astronomik Type II filters, IDAS LPS filter

Acquired, sigma combined, color combined AstroArt3

Luminance Histogram and HDRWavelets in PixInsight

Background subtraction in PixInsight