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Contains:  M 46, NGC 2437, NGC 2423, M 47, NGC 2422, NGC 2414
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M47 Wide Field, 


M47 Wide Field

M47 Wide Field

Technical card

Resolution: 1336x2004

Dates:Nov. 12, 2017

Frames: 3x360"

Integration: 0.3 hours

Avg. Moon age: 23.82 days

Avg. Moon phase: 32.63% job: 1813864

RA center: 114.149 degrees

DEC center: -14.483 degrees

Pixel scale: 7.005 arcsec/pixel

Orientation: 2.626 degrees

Field radius: 2.343 degrees


Messier 47 (Messier Object 47, M47, or NGC 2422) is an open cluster in the constellation Puppis. It was discovered by Giovanni Batista Hodierna before 1654 and independently discovered by Charles Messier on February 19, 1771. It was later independently discovered again, under the current name NGC 2422.

There is actually no cluster in the position indicated by Messier, which he expressed in terms of its right ascension and declination with respect to the star 2 Puppis. However, if the signs of Messier's coordinate differences are changed, the position matches that of NGC 2422. Until the equivalency of M47 with NGC2422 was found, M47 was considered a lost Messier Object. The discovery that M47 and NGC2422 were the same cluster only came in 1959 with a realization by Canadian astronomer T. F. Morris.

M47 is at a distance of about 1,600 light-years from Earth with an estimated age of about 78 million years. There are about 50 stars in this cluster, the brightest one being of magnitude +5.7. M47 is located relatively close in the sky to Messier 46, which is much older and much further away.

Messier47 - Wikipedia
Messier47 -
Messier47 - SEDS

This is image #25 in long term project to photograph the complete Messier catalog. 360 seconds each RGB (not see advantage of L). I happy with this one, colours seem nice and stars sharp.

Again this is clearly not most spectacular deep sky object but can see many stars and much colour variation so all in all pretty cool I think. If I would have been more thoughtful I could have imaged M46 and M47 in one go which might make for more interesting picture so maybe that one will try in future.



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Sky plot

Sky plot


M47 Wide Field,