M41 (天体)
1. Messier 41Messier 41 (also known as M41 or NGC 2287) is an open cluster in the Canis Major constellation. It was discovered by Giovanni Batista Hodierna before 1654 and was perhaps known to Aristotle about 325 BC. M41 lies about four degrees almost exactly south of Sirius. It contains about 100 stars including several red giants, the brightest being a spectral type K3 giant near the cluster's center. The cluster is estimated to be moving away from us at 23.3 km/s.
Read “Messier 41” on English Wikipedia
Read “M41 (天体)” on Japanese Wikipedia
Read “Messier 41” on DBpedia
Read “Messier 41” on English Wikipedia
Read “M41 (天体)” on Japanese Wikipedia
Read “Messier 41” on DBpedia
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