This page summarises the information held within TEPCat for the transiting planetary system CoRoT-21. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2012A+A...545A...6P | |
| Date of discovery paper | 2012 / 8 / 31 | y / m / d |
| Data/telescope used for discovery | CoRoT | |
| Right ascension | 06 44 12.59 | h m s |
| Declination | −00 17 56.9 | d m s |
| Right ascension (decimal) | 101.05246 | degrees |
| Declination (decimal) | -0.29914 | degrees |
| V-band apparent magnitude | 16.00 | mag |
| K-band apparent magnitude | 13.81 | mag |
| Transit duration | 0.198 ( 4.75 ) | day hour |
| Transit depth | 0.5 | % |
| Time of mid-transit | 2454399.0282 ± 0.0009 | HJD or BJD |
| Orbital period | 2.72474 ± 0.00014 | days |
| Reference for orbital ephemeris | 2012A+A...545A...6P |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6200 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.0 ± 0.1 | dex |
| Stellar mass | 1.39 ± 0.09 | Msun |
| Stellar radius | 1.95 ± 0.21 | Rsun |
| Stellar logarithmic surface gravity | 3.7 ± 0.1 | c.g.s. |
| Stellar mean density | 0.181 ± 0.060 ( 0.255 ± 0.085 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0417 ± 0.0011 | AU |
| Planetary mass | 2.26 ± 0.33 ( 718 ± 104 ) | Mjup Mearth |
| Planetary radius | 1.27 ± 0.14 ( 14.2 ± 1.6 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 1.03 ± 0.36 ( 1.37 ± 0.48 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2012A+A...545A...6P |
CoRoT-21 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/01/01 John Southworth (Keele University, UK)