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Star with planets

51 Eridani

Also 51 Eri

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A young star with a directly imaged young Jupiter-like planet, 51 Eridani b.

Measured

Distance
98 light-years
Constellation
Eridanus
Position (J2000)
RA 4h 37m 36s, Dec −2.47°

How far, from the Sun

97.5 light-years. To cross it:

  • Light97.5 years
  • Voyager 1's speed1.73 million years
  • Driving at 100 km/h1.05 billion years

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

Facts

  • Its distance comes from a Gaia parallax: the tiny yearly shift in its position as the Earth circles the Sun.

How it was found

  • Its planet was announced in 2015: the Gemini Planet Imager photographed it directly.

Where this comes from

  • Gaia DR3 parallax 33.4390 ± 0.0777 mas, Gaia DR3 3205095125321700480 (Gaia Collaboration 2023, A&A 674, A1)
  • 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.