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Contains:  NGC 7023
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NGC 7023 Iris Nebula #4, 


            Molly Wakeling
NGC 7023 Iris Nebula #4

NGC 7023 Iris Nebula #4

Technical card

Resolution: 3780x2902

Dates:July 23, 2019

Astronomik Blue 2-inch Type 2c: 5x90" (gain: 139.00) -25C bin 1x1
Astronomik Green 2-inch Type 2c: 10x90" (gain: 139.00) -25C bin 1x1
Astronomik Luminance 2-inch Type 2c: 29x90" (gain: 139.00) -25C bin 1x1
Astronomik Red 2-inch Type 2c: 9x90" (gain: 139.00) -25C bin 1x1

Integration: 1.3 hours

Darks: ~20

Bias: ~30

Avg. Moon age: 20.73 days

Avg. Moon phase: 64.90%

Bortle Dark-Sky Scale: 5.00 job: 2818659

RA center: 315.302 degrees

DEC center: 68.178 degrees

Pixel scale: 0.851 arcsec/pixel

Orientation: 0.144 degrees

Field radius: 0.563 degrees

Data source: Backyard


First night out with a new (to me!) scope, a generous gift from a fellow astro club member!
The Vixen MyStar G-R 200S is an 8-inch, f/4 Newtonian. It went nicely onto my Celestron AVX, which since I have pushed the gears closer together to take up the backlash, has been performing phenomenally. I forgot my guidescope at home that night, but was able to achieve 90s exposures, and a good majority of the images didn't have periodic error. Unfortunately, some clouds rolled in before I got enough blue frames, so the noise and gradients are a little funny. But a good first night with it!



Molly Wakeling
License: None (All rights reserved)

Sky plot

Sky plot


NGC 7023 Iris Nebula #4, 


            Molly Wakeling

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Women Astrophotographers