NGC 6384

NGC 6384
Hubble Space Telescope image of NGC 6384
Observation data (J2000 epoch)
Constellation	Ophiuchus
Right ascension	17^h 32^m 24.302^s^[1]
Declination	+07° 03′ 36.97″^[1]
Helio radial velocity	1,665 km/s^[2]
Distance	60.3 Mly (18.5 Mpc)^[2]
Type	SAB(r)bc^[3]
Mass	1.05 × 10¹¹^[3] M_☉
Apparent dimensions (V)	9′.9 × 9′.9^[4]
Other designations
UGC 10891

NGC 6384 is a barred spiral galaxy located about 60 million light-years away in the northern part of the constellation Ophiuchus. It has a morphological classification of SAB(r)bc,^[3] indicating that it is a weakly barred galaxy (SAB) with an inner ring structure (r) orbiting the bar, and moderate to loosely wound spiral arms (bc).^[5] The galaxy is inclined by an angle of 47° to the line of sight, along a position angle of 40°.^[6] The estimated mass of the stars in this galaxy is 105 billion times the mass of the Sun.^[3]

At one time NGC 6384 was considered a normal galaxy with no activity in the nucleus. However, it is now classified as a transition object (T2), which is thought to be a LINER-type galaxy whose emission-line spectra is contaminated by H II regions in the nucleus.^[7]

On 24 June 1971, a type Ia supernova event was discovered in this galaxy at 27″ east and 20″ north of the nucleus. It reached a peak visual magnitude of 12.85 around the end of June.^[8] Designated SN 1971L, it was situated along a spiral arm, suggesting that the progenitor was not a member of the older, more evolved stellar population of the galaxy.^[6]

References

1 2 Skrutskie, M. F.; et al. (February 2006), "The Two Micron All Sky Survey (2MASS)", Astrophysical Journal 131 (2): 1163–1183, Bibcode:2006AJ....131.1163S, doi:10.1086/498708.
1 2 Cappellari, Michele; et al. (May 2011), "The ATLAS^3D project - I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria", Monthly Notices of the Royal Astronomical Society 413 (2): 813–836, arXiv:1012.1551, Bibcode:2011MNRAS.413..813C, doi:10.1111/j.1365-2966.2010.18174.x.
1 2 3 4 Weinzirl, Tim; et al. (May 2009), "Bulge n and B/T in High-Mass Galaxies: Constraints on the Origin of Bulges in Hierarchical Models", The Astrophysical Journal 696 (1): 411–447, arXiv:0807.0040, Bibcode:2009ApJ...696..411W, doi:10.1088/0004-637X/696/1/411.
↑ Buta et al (2007), p. 211.
↑ Buta, Ronald J.; et al. (2007), Atlas of Galaxies, Cambridge University Press, pp. 13–17, ISBN 0521820480.
1 2 Hakobyan, A. A.; et al. (October 2007), "Study of the HII regions in the spiral galaxy NGC6384", Astrophysics 50 (4): 426–439, arXiv:0803.4502, Bibcode:2007Ap.....50..426H, doi:10.1007/s10511-007-0040-8.
↑ Sánchez-Portal, Miguel; Díaz, Ángeles I.; Terlevich, Elena; Terlevich, Roberto (May 2004), "Structural parameters of nearby emission-line galaxies", Monthly Notices of the Royal Astronomical Society 350 (3): 1087–1106, arXiv:astro-ph/0403403, Bibcode:2004MNRAS.350.1087S, doi:10.1111/j.1365-2966.2004.07720.x.
↑ Barbon, R.; et al. (1973), "Observations of five supernovae 1970-71", Memorie della Società Astronomia Italiana 44: 65–85, Bibcode:1973MmSAI..44...65B.

External links

Wikimedia Commons has media related to NGC 6384.

NGC 6384 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Nemiroff, Robert; Bonnell, Jerry (July 6, 2013), "NGC 6384: Spiral Beyond the Stars", Astronomy Picture of the Day (NASA), retrieved 2013-06-06.

Coordinates: 17^h 32^m 24.302^s, +07° 03′ 36.97″

New General Catalogue 6000 to 6499

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Astronomical catalog List of NGC objects

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