Star with planets

Kepler-444

Also KOI-3158

An ancient star with five small planets, each between Mercury and Venus in size, formed when the Universe was under 20% of its present age.

Measured

Distance
119 light-years
Constellation
Lyra
Position (J2000)
RA 19h 19m 00s, Dec +41.63°

How far, from the Sun

119 light-years. To cross it:

  • Light119 years
  • Voyager 1's speed2.12 million years
  • Driving at 100 km/h1.29 billion years

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

Facts

  • The star is about 11 billion years old, more than twice the Sun's age.
  • 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 27.3578 ± 0.0125 mas, Gaia DR3 2101486923385239808 (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.