Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Blue Snowball  ·  NGC 7662
NGC7662 - Blue Snowball Nebula, 



    
        

            Bob
NGC7662 - Blue Snowball Nebula
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NGC7662 - Blue Snowball Nebula

NGC7662 - Blue Snowball Nebula, 



    
        

            Bob
NGC7662 - Blue Snowball Nebula
Powered byPixInsight

NGC7662 - Blue Snowball Nebula

Acquisition details

Dates:
Sept. 18, 2016
Frames:
Astronomik Blue: 8×300(40′) -20°C bin 1×1
Astronomik Green: 8×300(40′) -20°C bin 1×1
Astronomik Luminance: 120×30(1h) -20°C bin 1×1
Astronomik Red: 8×300(40′) -20°C bin 1×1
Integration:
3h
Darks:
30
Flats:
30
Bias:
100
Avg. Moon age:
16.70 days
Avg. Moon phase:
95.81%
Bortle Dark-Sky Scale:
7.00
Temperature:
28.00

Basic astrometry details

Astrometry.net job: 1246344

RA center: 23h25m54s.5

DEC center: +42°3158

Pixel scale: 0.400 arcsec/pixel

Orientation: 91.292 degrees

Field radius: 0.232 degrees

Resolution: 3326x2504

File size: 4.8 MB

Locations: Backyard, Space Coast, Florida, United States

Description

This was one of the first objects my son and I observed when we got our CGEM / 8" scope a few years ago, and I have always wanted to try to image it. It is a difficult nebula to get detail on because it is so small (37"), and a full moon doesn't help. Also, the ring in the middle is bright, which requires short exposures. This was shot at 2800 mm because of size and I did 300 x 30 second luminous frames, but used less than half of them. This was combined with 40 minutes each of R, G and B. All binned 1x1. The inset is an enlargement of the nebula at the center of the image. The second inset, to the right, is a Hubble image of the same object. To get as much detail as possible, I performed a combination of up-sampling and deconvolution in PixInsight. Other than the full moon, the sky was good and calm. Guiding ran between 0.35" and 0.45" RMS the whole night.

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NGC7662 - Blue Snowball Nebula, 



    
        

            Bob

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Nebula