NGC 6028 | |
---|---|
![]() NGC 6028 (SDSS DR14) | |
Observation data (J2000epoch) | |
Constellation | Hercules |
Right ascension | 16h 01m 28.9s[1] |
Declination | 19° 21′ 36″[1] |
Redshift | 0.014927[1] |
Heliocentric radial velocity | 4475 km/s[1] |
Distance | 62.3 Mpc (203 Mly)[2] |
Apparent magnitude (V) | 14.35[1] |
Characteristics | |
Type | (R)SA0+?[1] |
Size | ~110,000 ly (35 kpc) (estimated)[1] |
Apparent size (V) | 1.3 x 1.2[1] |
Notable features | Structure similar to that ofHoag's Object |
Other designations | |
NGC 6046, 1ZW 133, CGCG 108-63, MCG 3-41-43, PGC 56716, PRC C-49, UGC 10135[1] |
NGC 6028 is abarred[3]lenticular galaxy[4] and aring galaxy[3] located about 200 millionlight-years away[4] in the constellationHercules.[5] Ring galaxies such as NGC 6028 are also known as Hoag-type galaxies as they may have a resemblance to the prototype,Hoag's Object.[3] NGC 6028 was discovered by astronomerWilliam Herschel on March 14, 1784. It was then rediscovered by astronomerGuillaume Bigourdan on May 4, 1886.[6]
NGC 6028 consists of a luminous core that is surrounded by a fainter outer ring. UnlikeHoag's Object, NGC 6028's core is elongated indicating the presence of a weak bar embedded in a lens-like structure. The outer ring of the galaxy appears asymmetric in structure and may be made up of tightly wound spiral arms. The observed asymmetry could be the result of one arm being richer inH II regions than the other arm.[3]
NGC 6028 appears to lie near theHercules cluster in the sky. However, NGC 6028 is not a member of that cluster but instead belongs to a foreground group of galaxies known as G47.[3]