| NGC 6355 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Ophiuchus |
| Right ascension | 17h 23m 58.6s[1][2] |
| Declination | −26° 21′ 12″[1] |
| Distance | 8.54 ± 0.19 kpc (27.85 ± 0.62 kly)[3] |
| Apparent magnitude (V) | 8.6[4] |
| Apparent dimensions (V) | 4.20[4] |
| Physical characteristics | |
| Absolute magnitude | -8.07 |
| Metallicity | = −1.39 ± 0.08[3] dex |
| Estimated age | 13.2 ± 1.1 Gyr[3] |
| Other designations | Cr 330, GCL 63 and ESO 519-SC15 |
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NGC 6355 is a globular cluster located in the constellation Ophiuchus.[5] It is at a distance of 28,000 light years away from Earth, and is currently part of the Galactic bulge.[3]
NGC was discovered by the German-born British astronomer William Herschel on 24 May 1784.[6] It was initially thought to be an open cluster, but its true nature as a globular cluster was later confirmed. It is a core-collapse cluster.[3]
- ^ a b "Object No. 1 - NGC 6355". NASA/IPAC extragalactic database. NASA/IPAC. Retrieved 14 October 2015.
- ^ "Revised NGC Data for NGC 6355". Seds. Retrieved 14 October 2015.
- ^ a b c d e Souza, S. O.; Ernandes, H.; Valentini, M.; Barbuy, B.; Chiappini, C.; Pérez-Villegas, A.; Ortolani, S.; Friaça, A. C. S.; Queiroz, A. B. A.; Bica, E. (2023). "Chrono-chemodynamical analysis of the globular cluster NGC 6355: Looking for the fundamental bricks of the Bulge". Astronomy & Astrophysics. 671: A45. arXiv:2301.05227. Bibcode:2023A&A...671A..45S. doi:10.1051/0004-6361/202245286.
- ^ a b "NGC 6355". Seds. Retrieved 14 October 2015.
- ^ "The globular cluster NGC 6355". In-the-sky. Retrieved 31 October 2016.
- ^ "NGC 6355 (= GCL 63)". cseligman. Retrieved 14 October 2015.