NGC 3947

NGC 3947
The barred spiral galaxy NGC 3947
Observation data (J2000 epoch)
ConstellationLeo
Right ascension11h 53m 20.3208s[1]
Declination+20° 45′ 06.184″[1]
Redshift0.020698 [1]
Heliocentric radial velocity6205 ± 2 km/s[1]
Distance314.0 ± 22.0 Mly (96.28 ± 6.75 Mpc)[1]
Group or clusterNGC 3947 Group, Leo Cluster
Apparent magnitude (V)13.2[1]
Characteristics
Type(R)SB(rs)b[1]
Size~153,100 ly (46.93 kpc) (estimated)[1]
Apparent size (V)1.4' x 1.2'[1]
Other designations
IRAS 11507+2101, 2MASX J11532031+2045055, UGC 6863, MCG +04-28-088, PGC 37264, CGCG 127-095[1]

NGC 3947 is a barred spiral galaxy in the constellation of Leo. Its velocity with respect to the cosmic microwave background is 6528 ± 23 km/s, which corresponds to a Hubble distance of 314.0 ± 22.0 Mly (96.28 ± 6.75 Mpc).[1] In addition, three non redshift measurements give a distance of 284.67 ± 12.90 Mly (87.28 ± 3.956 Mpc).[2] It was discovered by German-British astronomer William Herschel on 26 April 1785.[3]

  1. ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 3947. Retrieved 22 August 2024.
  2. ^ "Distance Results for NGC 3947". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 22 August 2024.
  3. ^ Seligman, Courtney. "NGC 3947". Celestial Atlas. Retrieved 22 August 2024.