NGC 424

NGC 424 is a spiral galaxy in the constellation of Sculptor. Its velocity with respect to the cosmic microwave background is 3,303±18 km/s, which corresponds to a Hubble distance of 158.9 ± 11.2 Mly (48.72 ± 3.42 Mpc).^[1] Also, two non-redshift measurements give a similar mean distance of 165.36 ± 24.14 Mly (50.700 ± 7.400 Mpc).^[3] It was discovered by British astronomer John Herschel on November 30, 1837.^[2][4]

ConstellationSculptor

Right ascension01^h 11^m 27.6390^s[1]

Declination−38° 05′ 00.452″^[1]

Redshift0.011764^[1]

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

NGC 424
NGC 424 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Sculptor
Right ascension	01h 11m 27.6390s[1]
Declination	−38° 05′ 00.452″[1]
Redshift	0.011764[1]
Heliocentric radial velocity	3,527 km/s[1]
Distance	165.36 ± 24.14 Mly (50.700 ± 7.400 Mpc)[1]
Apparent magnitude (V)	12.9[2]
Characteristics
Type	Sa[2]
Size	~134,600 ly (41.26 kpc) (estimated)[1]
Apparent size (V)	2.3′ × 0.8′[2]
Other designations
ESO 296- G 004, IRAS 01091-3820, MCG -06-03-026, PGC 4274[1]

Close

NGC 424 is a Seyfert I 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.^[5]