NGC 6304
| NGC 6304 | |
|---|---|
 Credit: 2MASS | |
| Observation data | |
| Class | VI |
| Constellation | Ophiuchus |
| Right ascension | 17h 14m 32.25s |
| Declination | −29° 27′ 43.3″ |
| Apparent magnitude (V) | 8.3 |
| Physical characteristics | |
| Metallicity | = -0.75 dex |
| Other designations | C 1711-294, Cl VDBH 216, ESO 454-2, GCl 56, Bennett 90, I 147, h 3670, GC 4275 |
![{\displaystyle {\begin{smallmatrix}\left[{\ce {Fe}}/{\ce {H}}\right]\end{smallmatrix}}}](https://wikimedia.org/enwiki/api/rest_v1/media/math/render/svg/4c0821bd80891e071c08e7c7ee8e022baedf522c)
NGC 6304 is a globular cluster in the constellation Ophiuchus. William Herschel discovered this star cluster using an 18.5-inch (47 cm) f/13 speculum reflector telescope in 1786.[1] It is about 19,000 light-years away, near the Milky Way's central bulge.[2]
References
- ^ "NGC 6304". Deep Sky Observer's Companion on-line database. Retrieved 2012-08-17.
- ^ Crossen, Craig; Rhemann, Gerald (2004), Sky Vistas: Astronomy for Binoculars and Richest-Field Telescopes (1 ed.), New York, NY: Springer-Verlag, p. 254, ISBN 3211008519
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