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Star with planets

HD 189733

Also V452 Vulpeculae

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An orange star with a hot Jupiter, HD 189733 b — one of the most studied planets outside the Solar System.

Measured

Distance
65 light-years
Constellation
Vulpecula
Position (J2000)
RA 20h 00m 44s, Dec +22.71°

How far, from the Sun

64.5 light-years. To cross it:

  • Light64.5 years
  • Voyager 1's speed1.15 million years
  • Driving at 100 km/h696 million years

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

Facts

  • Hubble measurements reported in 2013 showed the planet's colour: a deep blue.
  • Its distance comes from a Gaia parallax: the tiny yearly shift in its position as the Earth circles the Sun.

Where this comes from

  • Gaia DR3 parallax 50.5668 ± 0.0162 mas, Gaia DR3 1827242816201846144 (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.