Andromeda
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Galaxy

NGC 660

Also PGC 6318

Open in OuranosCompare its size

A spiral galaxy, tilted about 72° from face-on.

Measured

Distance
about 29.4 million light-years (published estimates 29.4 million–41.1 million)
Size
about 39,000 light-years across (approximate)
Constellation
Pisces
Position (J2000)
RA 1h 43m 02s, Dec +13.65°

How far, from the Sun

About 29.4 million light-years. To cross it:

  • Light29.4 million years
  • Voyager 1's speed522 billion years
  • Driving at 100 km/h317 trillion years

Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.

Facts

  • About 29 million light years away; catalogues put it between 29 million and 41 million.
  • About 39,000 light years across, at the distance above.

Where this comes from

  • Distance from z0MGS (Leroy et al. 2019, ApJS 244, 24); range with HyperLEDA's best distance modulus; size from HyperLEDA's D25 at that distance
  • 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.