Click here for a higher resolution image (2000 x 2000) of M 46 and NGC 2438

 

 

The Details
Object
M 46 and NGC 2438 in Puppis
Optics
Astro-Physics 12" Mak-Cass f/8
Platform
Astro-Physics 1600 Mount with absolute encoders
Camera
FLI 16803 Proline CCD
Filters
Tru-Balance LRGB filter set
Date
31 December 2013
Location
Las Campanas Observatory, Chile
Exposure
L 16 ea x 60 sec 1x1 bin; RGB 10 ea x 60 sec 1x1 bin (Total exposure time 46 mimutes - all frames taken unguided)
Software
ACP, Maxim DL/CCD, , CCDStack 2, Photoshop CS5
Orientation
Field of view: 52' x 52' centered on RA 07h41m47s
DEC-14°49'02" (2000). North angle 0.19°; east 90° CCW from north
Notes
M 46, a 300 million year old open cluster in the constellation Puppis, lies about 5000 light years from Earth and spans about 30 light years in dimension.  Juxtaposed against the cluster in the foreground is the small but beautiful planetary nebula NGC 2438, itself lying at a distance of about 3000 light years and not in any way physically linked with the star cluster.

 

 

 

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