Artist's impression, not a photograph.Artist's impression of Kepler-186f. Credit: NASA/Ames/SETI Institute/JPL-Caltech. Licence: Public domain (NASA). Source
A red dwarf with five known planets, including the first Earth-sized planet found in a habitable zone.
Measured
Distance
579 light-years
Constellation
Cygnus
Position (J2000)
RA 19h 54m 37s, Dec +43.95°
How far, from the Sun
579 light-years. To cross it:
Light579 years
Voyager 1's speed10.3 million years
Driving at 100 km/h6.25 billion years
Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
Facts
Kepler-186f is about 1.17 times Earth's radius and orbits every 130 days.
Its star is a red dwarf with about 54% of the Sun's mass.
How it was found
Kepler-186f, announced in 2014, was the first Earth-sized planet found in another star's habitable zone.