File:NGC477_-_SDSS_DR14.jpg · Wikimedia Commons · See Wikimedia Commons
Key facts
- Constellation
- Andromeda
- Right ascension
- 01 21 20.39
- Declination
- +40 ° 29 ′ 17.6 ″
- Redshift
- 0.019560 ± 0.000033
- Heliocentric radial velocity
- 5807 ± 10 km/s
- Distance
- 250 Mly
- Type
- SAB(s)c
- Apparent size v
- 1,6′ × 1,1′
via Wikipedia infobox
~1 min read
Encyclopedic overview
NGC 477 is a spiral galaxy in the constellation Andromeda. It is located approximately 250 million light-years from Earth and was discovered on October 18, 1786 by astronomer William Herschel.
One supernova has been observed in NGC 477: SN 2002jy (type Ia, mag. 16.3).
Excerpted from Wikipedia’s “NGC 477” article, available under the CC BY-SA 4.0 licence.