NGC 2232 - Open Cluster in Monoceros

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    12" RC - LRGB      
    Size: 1600 px      
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© Velimir Popov & Emil Ivanov 2013

NGC 2232 is bright, very large, not compressed and not rich. It is a scattered group of 22 stars including HD 45546 (10 Mon).You can find this sparsely populated, large open cluster to the North from the star beta Mon in Monoceros. In its center shines the star HD 45546, which is a mag 5 star - therefore it is visible with the naked eye even from moderately dark places. The cluster has many members brighter than 10m. To the West of the HD 45546 is a double star with a blue and an orange component.

Object details

Right Ascension 06:28:01 (h:m:s)
Declination -04:50:51 (deg:m:s)
Distance - (kly)
Apparent Dimension 29 (arc min)

Image details


Center of field RA 06:28:00.645 (h:m:s)
Center of field DE -04:50:52.470 (deg:m:s)
Size 27.8 x 27.8 (arcmin)
Pixel scale: 1.04 (arcsec/pixel)
Orientation: North is up
Charts and image details obtained from

RC 12"

Optic(s): RC 12" with Astro-Physics corrector @ f/5 (RC)
Mount: ASA DDM85 Premium
Camera: ATIK 4000 M
Filters: Astronomik II: Lum, Red, Green, Blue
Dates/Times: 19.11.2012
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L: 5x3 min; R: 5x3 min; G: 5x3 min; B: 5x3 min;
  Bin 1, Total Exposure Time - 60 min (1:00 hours)
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013. All Rights Reserved
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