Andromeda
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Open star cluster

NGC 752

Also Caldwell 28

Open in OuranosCompare its size

An old, scattered open cluster in Andromeda, more than twice the width of the full Moon on the sky.

Measured

Distance
1,414 light-years
Size
about 19.6 light-years across (approximate)
Constellation
Andromeda
Position (J2000)
RA 1h 56m 38s, Dec +37.79°

How far, from the Sun

1,410 light-years. To cross it:

  • Light1,410 years
  • Voyager 1's speed25.1 million years
  • Driving at 100 km/h15.3 billion years

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

Facts

  • It is a moderately old open cluster, about 1.3 to 1.6 billion years old.
  • Gaia picks out about 442 member stars (Hunt & Reffert 2023).

Where this comes from

  • Hunt & Reffert 2023, A&A 673, A114: Gaia DR3 cluster distance 433.6 pc (16th–84th percentile 433.3–434 pc)
  • 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.