NGC 6142

NGC 6142 is a large spiral galaxy in the constellation of Corona Borealis. Its velocity with respect to the cosmic microwave background is 10,180±4 km/s, which corresponds to a Hubble distance of 489.7 ± 34.3 Mly (150.15 ± 10.51 Mpc).^[1] It was discovered by German-British astronomer William Herschel on 30 May 1791.^[2][3]

ConstellationCorona Borealis

Right ascension16^h 23^m 21.0702^s[1]

Declination+37° 15′ 30.466″^[1]

Redshift0.033843±0.0000113^[1]

Quick facts Observation data (J2000 epoch), Constellation ...

NGC 6142
NGC 6142 imaged by SDSS
Observation data (J2000 epoch)
Constellation	Corona Borealis
Right ascension	16h 23m 21.0702s[1]
Declination	+37° 15′ 30.466″[1]
Redshift	0.033843±0.0000113[1]
Heliocentric radial velocity	10,146±3 km/s[1]
Distance	489.7 ± 34.3 Mly (150.15 ± 10.51 Mpc)[1]
Group or cluster	Abell 2199
Apparent magnitude (V)	14.3g[1]
Characteristics
Type	Sb[1]
Size	~295,700 ly (90.66 kpc) (estimated)[1]
Apparent size (V)	1.75′ × 0.59′[1]
Other designations
2MASX J16232109+3715305, UGC 10366, MCG +06-36-041, PGC 57984, CGCG 196-056[1]

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