NGC 2438 is a planetary nebula associated with the star cluster M46. The planetary nebula is located about 3,000 light-years away. The central star in NGC 2438 is one of the hottest stars known. It is a white dwarf that has a surface temperature of about 75,000 degrees K. The planetary nebula is not actually located in the M46 star cluster, but instead appears to be merely a chance alignment with the star cluster.
This is an RGB color composite CCD image taken with an Explore Scientific ED152CF 6-inch refractor using an SBIG STL-11000M CCD.
RA:07h 41m 50.6s Dec:-14d 44' 05" (J2000)
November 3, 2013
Image by Sid Leach
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