Messier 46 is a relatively bright, large cluster containing about 500 stars, and NGC2438 ~ this Planetary Nebula is located well within the apparent borders of open star cluster M46 in the constellation of Puppies (The Stern).
Guides to the night sky
Deep Sky Object:
– M46 (open cluster)
– NGC2438 (planetary nebula)
Constellation:
– Puppies (The Stern)
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