CoRoT-8
CoRoT-8 is a star in the constellation Aquila at a distance of about 1239 light-years from us. At least one planet revolves around the star.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 26m 21.26s |
| Declination | +01° 25′ 34.67″ |
| Characteristics | |
| Evolutionary stage | main sequence star |
| Spectral type | K3V |
| Variable type | planetary transit |
| Astrometry | |
| Proper motion (μ) | RA: 13.5768 ± 0.0475751 mas/yr Dec.: -32.7832 ± 0.0418883 mas/yr |
| Parallax (π) | 3.07662 ± 0.0259729 mas |
| Details | |
| Mass | 0.88 M☉ |
| Radius | 0.77 R☉ |
| Temperature | 5143 K |
| Metallicity [Fe/H] | -0.22 ± 0.11 Fe dex |
| Age | 1.7 Gyr |
CoRoT-8 is an orange dwarf which has 0.88 solar masses and 0.77 solar radius. By astronomical standards, this is already a rather young star compared to the Sun: its age is about 3 billion years. It got its name in honor of the CoRoT space telescope, with the help of which its planetary companion was discovered.
In 2010, a group of astronomers working within the CoRoT program announced the discovery of the planet CoRoT-8b in this system. It is a hot gas giant, similar in mass and size to Saturn. The planet orbits at a distance of about 0.06 AU. e. from the parent star, while making a complete revolution in 6.21 days.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.218 ± 0.034 MJ | 0.0636 ± 0.0014 | 6.212445 ± 0.000007 | 0.19 | — | — |