Star with a known planet
CHXR 73
CHXR 73, an M3.5 star, has one confirmed planet.
Measured
- Distance
- about 621 light-years
- Star's spectral type
- M3.5
- Confirmed planets
- 1
How far, from the Sun
About 621 light-years. To cross it:
- Light621 years
- Voyager 1's speed11 million years
- Driving at 100 km/h6.7 billion years
Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
How it was found
- First planet found in 2006, by imaging (NASA Exoplanet Archive).
Its planets
- CHXR 73 b — 12 times Earth's width (estimated from its mass, not measured), a giant, Jupiter-sized or more; found in 2006 by imaging.
The NASA Exoplanet Archive's page
Where this comes from
- NASA Exoplanet Archive, Planetary Systems Composite Parameters (fetched 2026-11-02). Composite values: where a planet's size or mass was not measured, the archive estimates it from the other.
- This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.
Every catalogue Ouranos draws is credited on the credits page.