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Contains:  NGC 457, The star φCas
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Owl Cluster - NGC 457, 





    
        

            ScottyP5947
Owl Cluster - NGC 457

Owl Cluster - NGC 457

Technical card

Resolution: 1374x1099

Astrometry.net job: 1925855

RA center: 19.919 degrees

DEC center: 58.297 degrees

Pixel scale: 2.182 arcsec/pixel

Orientation: 257.931 degrees

Field radius: 0.533 degrees

Description

Here is a quick first light with my Explore Scientific N208CF imaging newt with my Atik 460. (Cooled to -20) This is RGB only - 10 subs of each color, 2 min each, binned 2x2. 1 hour total integration.That gives me an image scale of around 2.34"/pixel - what I learned here is that I'd need to do some Lum at 1x1 to really look good. When I zoom in on these stars, I find that they look a little blocky. Looks like I got the spacing with the Explore Scientific coma corrector correct, stars at the edge look OK. My guiding was AWFUL last night, so I'm amazed the stars aren't egg shaped. Combined in Pixinsight, bias frames only, needed to apply Morphological transformation to reduce the number of background stars. For a quickie experiment - I'm happy with it, but still lots to learn and fix here.

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ScottyP5947
ScottyP5947
License: None (All rights reserved)
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Owl Cluster - NGC 457, 





    
        

            ScottyP5947