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NGC 1990   LRGB

NGC 1990 is a faint reflection nebula illuminated by Alnilam (Epsilon Orionis), the center star in Orion’s Belt. There’s a lot of uncertainty surrounding this object. The only image that seems to show anything around the star is the Wikipedia image. To me, that image’s nebulosity looks like an odd halo from filters. All other images show nothing around the star. Some guides show the nebula to be the area just to the right of the star. This is another object in the Astro League’s Bright Nebula Program.

The small, bright nebula at the top center is IC 423.

Luminance – 12x600s – 120 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2

240 minutes total exposure – 4 hours

Imaged January 29th, 2014 at the Danville Conservation Area (New Florence, Missouri) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.

LRGB - http://www.flickr.co...724423/sizes/l/

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