NGC 3905

ConstellationCrater

Right ascension11^h 49^m 04.9143^s[1]

Declination−09° 43′ 47.784″^[1]

Redshift0.019227±0.0000210^[1]

NGC 3905
NGC 3905 imaged by Pan-STARRS
Observation data (J2000 epoch)
Constellation	Crater
Right ascension	11h 49m 04.9143s[1]
Declination	−09° 43′ 47.784″[1]
Redshift	0.019227±0.0000210[1]
Heliocentric radial velocity	5,764±6 km/s[1]
Distance	238.64 ± 20.80 Mly (73.167 ± 6.376 Mpc)[1]
Group or cluster	LDC 824 group
Apparent magnitude (V)	12.9B[1]
Characteristics
Type	SB(rs)c[1]
Size	~155,400 ly (47.64 kpc) (estimated)[1]
Apparent size (V)	1.9′ × 1.4′[1]
Other designations
IRAS 11465-0927, MCG -01-30-035, PGC 36909[1]

NGC 3905 is a barred spiral galaxy in the constellation of Crater. Its velocity with respect to the cosmic microwave background is 6,130±26 km/s, which corresponds to a Hubble distance of 294.9 ± 20.7 Mly (90.41 ± 6.34 Mpc).^[1] However, six non-redshift measurements give a closer mean distance of 238.64 ± 20.80 Mly (73.167 ± 6.376 Mpc).^[2] It was discovered by English astronomer Andrew Ainslie Common in 1880.^[3]

NGC 3905 is 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]