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Contains:  NGC 2683
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NGC 2683, the UFO galaxy, 


NGC 2683, the UFO galaxy
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NGC 2683, the UFO galaxy

Technical card

Dates:Feb. 21, 2020

ZWO 31mm Lumance ZWO Lum: 30x60" (gain: 76.00) -15C bin 1x1
ZWO 31mm Red ZWO Red 31mm: 15x120" (gain: 76.00) -15C bin 2x2
ZWO 31mm Blue Zwo Blue: 15x120" (gain: 76.00) -15C bin 2x2
ZWO 31mm Green Zwo Green: 15x120" (gain: 76.00) -15C bin 2x2

Integration: 2.0 hours

Avg. Moon age: 27.57 days

Avg. Moon phase: 4.28%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 20.10

Temperature: 1.00

Basic astrometry details job: 3265578

RA center: 8h 52' 41"

DEC center: +33° 25' 48"

Pixel scale: 0.431 arcsec/pixel

Orientation: 273.475 degrees

Field radius: 0.257 degrees

Resolution: 3621x2308

Locations: Garland Mountain, Canton, Georgia, United States

Data source: Traveller


NGC 2683 is fairly close to us as galaxies go, between 16 and 24 million light years depending on the source. It is also fairly bright at magnitude 9.7, yet it doesn't seem to be imaged very often which surprises me as I find it a pretty target with nice details.

My session did not go to plan, seeing was on the poor side and the transparency was quite variable. Worse, the corrector plate on the C11 frosting over in-spite of the dew strap. I did managed to capture 30min each in RGB before the dew set in. However I only got 30 minutes of a planed 90 in Luminance and that was shot with the inner 1/3 of the corrector covered in dew, leading to a FWHM of 7 for the Lum frames vs. 3 for the RGB. Still the image came out OK, certainly better than I expected when I packed up.



License: Attribution-NonCommercial Creative Commons

Sky plot

Sky plot


NGC 2683, the UFO galaxy,