NGC 2423
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| AladinLite | |
| Constellation | Aft deck of the ship |
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Position equinox : J2000.0 |
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|---|---|
| Right ascension | 07 h 37 m 06.7 s |
| declination | -13 ° 52 ′ 17 ″ |
| Appearance
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| classification | IV2m |
| Brightness (visual) | 6.7 likes |
| Brightness (B-band) | 7.15 likes |
| Angular expansion | 12 |
| Number of stars | 50-60 |
| Physical data
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| Affiliation | Milky Way |
| Redshift | 0.000072 |
| Radial velocity | 21.67 km / s |
| distance | 2500 ly (776 pc ) |
| Absolute brightness | 0.097 mag |
| diameter | 15 years |
| Age | 500 million years |
| Metallicity [Fe / H] | +0.14 |
| history | |
| Discovered by | William Herschel |
| Discovery time | March 19, 1786 |
| Catalog names | |
| NGC 2423 • C 0734-137 • OCl 592 • Mel 70 • Cr 153 • Lund 359 • GC 1552 • H VII 28 • h 3090 • | |
NGC 2423 is an open cluster of Trumpler type IV2m in the constellation of Puppis (back deck of the ship) to the southern sky . From the color-brightness diagram , NGC 2423 has an age of about 720 million years, a distance of 2500 light years and an extension of 14 light years.
Its immediate (optical) neighbors are the two star clusters Messier 46 and Messier 47 .
The object was discovered on March 19, 1786 by William Herschel .
Web links
Amateur photo: [1]
![[1]](http://www.spektrum.de/fm/1027/4%20STERNHAUFEN%20who%20is%20who.jpg){kind=link}