NGC 391
Sign in to saveelliptical galaxy in the constellation Cetus
Astronomical data · SIMBAD
- Object type
- GiG
- Redshift
- z = 0.01783
- Coordinates
- RA 16.8441° · Dec 0.9260°
View on SIMBAD →
via SIMBAD · CDS Strasbourg
Key facts
- Constellation
- Cetus
- Right ascension
- 01 07 22.5865
- Declination
- +00 ° 55 ′ 33.403 ″
- Redshift
- 0.017 829 ± 0.000 006 67
- Heliocentric radial velocity
- 5,345 ± 2 km/s
- Distance
- 241.6 ± 17.0 Mly (74.07 ± 5.20 Mpc )
- Apparent magnitude v
- 14.1g
- Type
- (R')SA0 :
- Size
- ~94,800 ly (29.08 kpc ) (estimated)
- Apparent size v
- 0.89′ × 0.75′
via Wikipedia infobox
~1 min read
Encyclopedic overview
NGC 391 is an unbarred lenticular galaxy located in the constellation Cetus. Its velocity with respect to the cosmic microwave background is 5,022±23 km/s, which corresponds to a Hubble distance of 241.6 ± 17.0 Mly (74.07 ± 5.20 Mpc). Additionally, one non-redshift measurement gives a farther distance of 272 Mly (83.3 Mpc). It was discovered by American astronomer George Bond on January 8, 1853. It was described by Dreyer as "faint, small, mottled but not resolved (Auwers 9)."
Supernova
Excerpted from Wikipedia’s “NGC 391” article, available under the CC BY-SA 4.0 licence.