M46 and M47
Image information:
Date: | 02/05/2011 |
Equipment: | QSI583ws with internal filter wheel and Astronomik type 2c LRGB filter set through AT65EDQ telescope on Losmandy GM8 mount. |
Image type: | LRGB |
Exposure time: | 9X6min Luminance binned 1X1, RG&B 8X4min each binned 2X2 |
Comment: |
Object information:
Object designations: |
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Object type: |
Open clusters |
Object size: |
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Constellation: | Puppis |
Comment: |
M46 is a rich open cluster containing several hundred stars within its diameter of about 30ly. M46 is around 300 million years old and it is some 5000ly distant from us. NGC2438 is a planetary nebula visible within M46 boundaries, but it is not a true member of the cluster. M47 is not as rich as M46, it is a loose cluster containing some 50 stars in diameter of 12ly. Its age is only about 78 million years, and it is 1600ly distant. NGC 2423 is a less prominent cluster located just north of M47, which contains about 40 stars. |
Related images:
List of related images: |
None |