NGC 6603

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NGC 6603
NGC 6603 (bottom right) in Messier 24
Observation data (J2000.0 epoch)
Right ascension	18^h 18.4^m
Declination	−18° 25′
Distance	10 kly
Apparent magnitude (V)	11.4
Apparent dimensions (V)	5′
Physical characteristics

NGC 6603 is an open cluster discovered by John Herschel around 1825-33.

Situated within the brightest part of star cloud M24, it is classified by Shapley as type "g". This cluster consists of about 30 stars in a field of about 5 arc minutes in diameter, and is about 9400 light years remote. Thus its linear diameter should be about 14 light years. The hottest stars are about B9 (pointing to an intermediate age of several 100 million years, an estimate of which is not known to the present author), and the brightest of photographic mag 14.

External links

NGC 6603 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Coordinates: 18^h 18.4^m 00^s, +18° 25′ 00″

Astronomical catalogs

NGC	NGC 6598 NGC 6599 NGC 6600 NGC 6601 NGC 6602 NGC 6603 NGC 6604 NGC 6605 NGC 6606 NGC 6607 NGC 6608

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