Andromeda
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Andromeda's satellite galaxy

Andromeda XXI

Open in Ouranos

Andromeda XXI goes round Andromeda, about 430,000 light-years from its centre.

Measured

Distance
about 2.64 million light-years

How far, from the Sun

About 2.64 million light-years. To cross it:

  • Light2.64 million years
  • Voyager 1's speed47 billion years
  • Driving at 100 km/h28.5 trillion years

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

Facts

  • Shines like about 370,000 Suns.
  • Placed at its measured distance.

Where this comes from

  • McConnachie et al. 2018, ApJ 868, 55, Table 3 (CDS J/ApJ/868/55)

Every catalogue Ouranos draws is credited on the credits page.