NGC 6355

NGC 6355
NGC 6355 seen by Hubble's ACS and WFC3.
Observation data (J2000 epoch)
Constellation	Ophiuchus
Right ascension	17^h 23^m 58.6^s[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	${\displaystyle {\begin{smallmatrix}\left[{\ce {Fe}}/{\ce {H}}\right]\end{smallmatrix}}}$ = −1.39 ± 0.08[3] dex
Estimated age	13.2 ± 1.1 Gyr[3]
Other designations	Cr 330, GCL 63 and ESO 519-SC15

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]

See also

• List of NGC objects (6001–7000)
• List of NGC objects

References

1. "Object No. 1 - NGC 6355". NASA/IPAC extragalactic database. NASA/IPAC. Retrieved 14 October 2015.
2. "Revised NGC Data for NGC 6355". Seds. Retrieved 14 October 2015.
3. 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.
4. "NGC 6355". Seds. Retrieved 14 October 2015.
5. "The globular cluster NGC 6355". In-the-sky. Retrieved 31 October 2016.
6. "NGC 6355 (= GCL 63)". cseligman. Retrieved 14 October 2015.

External links

• Media related to NGC 6355 at Wikimedia Commons