Andromeda
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Nearby star

70 Ophiuchi

Also GJ 702 · HD 165341

Open in Ouranos

A pair of orange dwarf stars that orbit each other every 88 years, visible to the naked eye.

Measured

Distance
17 light-years
Constellation
Ophiuchus
Position (J2000)
RA 18h 05m 27s, Dec +2.50°

How far, from the Sun

16.7 light-years. To cross it:

  • Light16.7 years
  • Voyager 1's speed296,000 years
  • Driving at 100 km/h180 million years

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

Facts

  • William Herschel found it to be double in 1779.
  • Spectral type K0V + K4V (SIMBAD).

Where this comes from

  • Gaia DR3 parallax 195.5674 ± 0.1964 mas, Gaia DR3 4468557611984384512 (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.