NGC 6603
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| NGC 6603 (bottom right) in Messier 24 | |
| AladinLite | |
| Constellation | Sagittarius |
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Position equinox : J2000.0 |
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|---|---|
| Right ascension | 18 h 18 m 27.0 s |
| declination | -18 ° 24 ′ 22 ″ |
| Appearance
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| classification | I2r |
| Brightness (visual) | 11.1 mag |
| Angular expansion | 4 ' |
| Physical data
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| Affiliation | Milky Way |
| Redshift | 0.000071 |
| Radial velocity | 21.3 km / s |
| distance | 11400 ly (3495 pc ) |
| history | |
| Discovered by | John Herschel |
| Discovery time | July 15, 1830 |
| Catalog names | |
| NGC 6603 • C 1815-184 • OCl 36 • Mel 197 • Cr 374 • ESO 590-SC17 • GC 4397 • Raab 129 | |
NGC 6603 is an open cluster of Trumpler type I1r in the constellation Sagittarius on the ecliptic . It lies within the small Sagittarius cloud (Messier 24) and is about 11,000 light years away from the solar system.
The object was discovered on July 15, 1830 by John Herschel .
Web links
Individual evidence
- ↑ NASA / IPAC EXTRAGALACTIC DATABASE
- ↑ a b c SEDS: NGC 6603
- ↑ AL Tadross: A catalog of 120 NGC open star cluster . In: Journal of the Korean Astronomical Society , 44, 2011, pp. 1-11. doi: 10.5303 / JKAS.2011.44.1.1 .
- ↑ Seligman