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Contains:  12 Mon, NGC 2239, NGC 2244, NGC2237, NGC2238, NGC2239, NGC2244, NGC2246, Rosette nebula, Sh2-275, The star 12Mon
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NGC 2238: The Rosette Nebula, 


            Glenn Diekmann
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NGC 2238: The Rosette Nebula

Technical card

Dates:Nov. 2, 2018Nov. 3, 2018

Astrodon Blue Tru-Balance E-Series Gen 2: 25x120" (gain: 76.00) -10C bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 23x120" (gain: 76.00) -10C bin 1x1
Astrodon Luminance E-Series Gen 2: 74x60" (gain: 76.00) -10C bin 1x1
Astrodon Red Tru-Balance E-Series Gen 2: 26x120" (gain: 76.00) -10C bin 1x1

Integration: 3.7 hours

Darks: ~50

Flats: ~16

Bias: ~200

Avg. Moon age: 24.62 days

Avg. Moon phase: 25.04%

Bortle Dark-Sky Scale: 3.00 job: 3248721

RA center: 6h 31' 53"

DEC center: +4° 57' 52"

Pixel scale: 1.097 arcsec/pixel

Orientation: -176.465 degrees

Field radius: 0.827 degrees

Resolution: 4376x3216

Locations: Nightfall Star Party, Borrego Springs, California, United States

Data source: Traveller


This image represents first light for both my SV102T and Mach1. Data was acquired on 2 November, 2018, during the Nightfall event at Borrego Springs, CA, sponsored by the Riverside Astronomical Society.



Glenn Diekmann
License: None (All rights reserved)

Sky plot

Sky plot


NGC 2238: The Rosette Nebula, 


            Glenn Diekmann