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Contains:  NGC 7023
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Iris Nebula, NGC 7023, 


            Patrick Hsieh
Iris Nebula, NGC 7023

Iris Nebula, NGC 7023

Technical card

Resolution: 2318x1750

Dates:July 4, 2019

Frames: 66x180"

Integration: 3.3 hours

Avg. Moon age: 1.91 days

Avg. Moon phase: 4.06% job: 2782941

RA center: 21h 1' 35"

DEC center: +68° 10' 8"

Pixel scale: 0.842 arcsec/pixel

Orientation: 90.792 degrees

Field radius: 0.340

Locations: Las Vegas, Las Vegas, NV, United States

Data source: Backyard


Trying a different data collection approach as suggested by Jon Rista on CloudyNights - limited RGB subs (12 ea here) and as many Lum as possible; only able to take 30 Lum so far due to time constraints, he suggests 50 to 100. From my locations at least (generally 20.8 mag/arcsec^2 or better) this seems to work OK. Lum frames were 120 s, RGB 280 s, WO FLT132 with 2x PowerMate. Some corner star elongation, I think the spacing with the ONAG is too much for the PowerMate. 50% reduction. Comments welcome!



Patrick Hsieh
License: None (All rights reserved)

Sky plot

Sky plot


Iris Nebula, NGC 7023, 


            Patrick Hsieh