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Sharpless 2-178 in Cassiopia, 


            Valts Treibergs
Sharpless 2-178 in Cassiopia

Sharpless 2-178 in Cassiopia

Technical card

Resolution: 2572x2116

Dates:Sept. 27, 2017

Astronomik Ha-CCD 12nm 2": 23x300" -30C bin 1x1
Astronomik Hb-CCD 12nm 2": 20x181" -30C bin 1x1
Astronomik O3-CCD 12nm 2": 20x180" -30C bin 1x1
Astronomik S2-CCD 12nm 2": 20x180" -30C bin 1x1

Integration: 4.9 hours

Flats: ~15

Bias: ~15

Avg. Moon age: 6.83 days

Avg. Moon phase: 44.15%

Bortle Dark-Sky Scale: 5.00

Temperature: 10.50 job: 1756108

RA center: 0h 30' 52"

DEC center: +57° 19' 4"

Pixel scale: 1.748 arcsec/pixel

Orientation: 135.529 degrees

Field radius: 0.809

Locations: White Bear Twp, MN, White Bear Township, MN, United States

Data source: Backyard


Here is a ridiculously faint planetary nebula in Cassiopia - Sh2-176 (15+ mag) . Almost 5 hours exposure with the E160 and QHY22 in narrow-band - imaged from White Bear Township.

I combined S2, O3, and Hb data (20x180s subs) for RGB stars. Only Ha (23x300s subs) had nebulosity in it and was blended into the red channel.



Valts Treibergs
License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot


Sharpless 2-178 in Cassiopia, 


            Valts Treibergs