Galaxy
NGC 891
Also Caldwell 23 · Silver Sliver Galaxy
An edge-on spiral galaxy thought to look much like the Milky Way would from outside.
Measured
- Distance
- 29.8 million light-years
- Size
- about 106,000 light-years across (approximate)
- Constellation
- Andromeda
- Position (J2000)
- RA 2h 22m 33s, Dec +42.35°
How far, from the Sun
29.8 million light-years. To cross it:
- Light29.8 million years
- Voyager 1's speed529 billion years
- Driving at 100 km/h321 trillion years
Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
Facts
- Filaments of dust rise far above and below its disc.
- It is moving away from us at about 530 km/s (NASA/IPAC NED).
Where this comes from
- Cosmicflows-3, Tully, Courtois & Sorce 2016, AJ 152, 50 (9.12 Mpc)
- This research has made use of the SIMBAD database, CDS, Strasbourg, France (Wenger et al. 2000, A&AS 143, 9).
- This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France (DOI: 10.26093/cds/vizier).
Every catalogue Ouranos draws is credited on the credits page.