NGC 4619

From Wikipedia, the free encyclopedia

Right ascension12h 41m 44.5498s[1]
Declination+35° 03 45.776[1]
Redshift0.023093±0.00000667[1]
NGC 4619
NGC 4619 imaged by SDSS. The foreground star in the lower left is catalogued as HD 110438.
Observation data (J2000 epoch)
ConstellationCanes Venatici
Right ascension12h 41m 44.5498s[1]
Declination+35° 03 45.776[1]
Redshift0.023093±0.00000667[1]
Heliocentric radial velocity6,923±2 km/s[1]
Distance331.74 ± 12.34 Mly (101.713 ± 3.783 Mpc)[1]
Apparent magnitude (V)13.5g[1]
Characteristics
TypeSB(r)b pec[1]
Size~149,200 ly (45.76 kpc) (estimated)[1]
Apparent size (V)1.25′ × 1.06′[1]
Other designations
IRAS 12393+3520, 2MASX J12414453+3503463, UGC 7856, MCG +06-28-018, PGC 42594, CGCG 188-014[1]

NGC 4619 is a barred spiral galaxy in the constellation of Canes Venatici. Its velocity with respect to the cosmic microwave background is 7,176±18 km/s, which corresponds to a Hubble distance of 345.2 ± 24.2 Mly (105.84 ± 7.41 Mpc).[1] However, 15 non-redshift measurements give a closer mean distance of 331.74 ± 12.34 Mly (101.713 ± 3.783 Mpc).[2] It was discovered by German-British astronomer William Herschel on 1 May 1785.[3]

NGC 4619 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4][5]

One supernova has been observed in NGC 4619:

See also

References

Related Articles

Wikiwand AI