Astral Imaging at Dogwood Ridge Observatory

Latitude: 3748'51.0" N"
Scottsville, Virginia 24590


(click on thumbnails to go to that image's page)






Image Information

Quoted from SEDS:

Right Ascension 7 : 36.9 (h:m)
Declination +65 : 36 (deg:m)
Distance 12000.0 (kly)
Visual Brightness 8.4 (mag)
Apparent Dimension 17.8 x 11.0 (arc min)

Discovered by William Herschel in 1788.

This beautiful spiral galaxy is an outlying member of the M81 group of galaxies, and thus about 12 million light years distant.

NGC 2403 is among the more conspicuous Northern objects which Charles Messier missed when compiling his catalog. Thus its discovery was left to William Herschel.













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This image consists of 19 luminance, 17 red, 16 green, and 17 blue 15 minute exposures for a total of 17-1/4 hours. The rgb images are binned 2x2 while the luminance images are binned 1x1. All taken at -30C. All data was acquired using MaxImDl/CCD version 5.24 using ACP7.1.  Pix Insight version was used for processing. Dithered guiding was on.

Equipment and Location Information

Date Jan. 28 - Feb. 19, 2015
Location Dogwood Ridge Observatory
Optics Optical Guidance Systems 12.5" RC @f/9
Mount Astro Physics AP1200GTO
Camera SBIG STL-11002M/CW8
Filters Baader LRGB Ha 7nm,SII 8nm, OIII 8.5nm - 50.8mm Unmounted Filters
Conditions Temperature low to mid 20s - 30s with moderate to good  seeing. Transparency good.

  Last Modified :10/02/12 01:10 PM