Celestial hemisphere:  Southern  ·  Constellation: Puppis (Pup)  ·  Contains:  M 46  ·  NGC 2437
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M46, Roberto Marinoni
M46
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M46

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M46, Roberto Marinoni
M46
Powered byPixInsight

M46

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Description

M46 is a rich open star cluster in Puppis constellation.

Inside the cluster it is visible a small planetary nebula, NGC 2438: but in reality this is only for a perspective effect, because M46 has a distance of 5400 light years, while NGC 2438 has a distance of 2900 light years.

On the image it is visible also another very faint planetary nebula, PK231+4.1, with magnitude 14.4: you can see it at about the half distance between NGC 2438 and the right side of the image.

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M46, Roberto Marinoni

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Astrofili Dalai Lama
Imagers of Italy