This page summarises the information held within TEPCat for the transiting planetary system CoRoT-18. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2011A+A...533A.130H | |
| Date of discovery paper | 2011 / 7 / 12 | y / m / d |
| Data/telescope used for discovery | CoRoT | |
| Right ascension | 06 32 41.36 | h m s |
| Declination | −00 01 53.7 | d m s |
| Right ascension (decimal) | 98.17233 | degrees |
| Declination (decimal) | -0.03158 | degrees |
| V-band apparent magnitude | 15.00 | mag |
| K-band apparent magnitude | 13.01 | mag |
| Transit duration | 0.0995 ( 2.388 ) | day hour |
| Transit depth | 2.0 | % |
| Time of mid-transit | 2455321.72565 ± 0.00024 | HJD or BJD |
| Orbital period | 1.9000900 ± 0.0000005 | days |
| Reference for orbital ephemeris | 2019MNRAS.483..824R |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5440 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.1 ± 0.1 | dex |
| Stellar mass | 0.88 ± 0.07 | Msun |
| Stellar radius | 0.883 +0.025 −0.031 | Rsun |
| Stellar logarithmic surface gravity | 4.491 +0.015 −0.023 | c.g.s. |
| Stellar mean density | 1.28 +0.04 −0.09 ( 1.806 +0.056 −0.127 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0288 ± 0.0008 | AU |
| Planetary mass | 3.30 ± 0.19 ( 1049 ± 60 ) | Mjup Mearth |
| Planetary radius | 1.146 +0.039 −0.048 ( 12.85 + 0.44 − 0.54 ) | Rjup Rearth |
| Planetary surface gravity | 61.7 +3.1 −4.2 3.79 +0.02 −0.03 | m/s2 log(cgs) |
| Planetary mean density | 2.06 +0.24 −0.29 ( 2.73 +0.32 −0.38 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1487 ± 19 | K |
| Reference of detailed study | 2019MNRAS.483..824R |
| Reference | λ (degrees) |
|---|---|
| Hébrard et al. (2011) | −10 ± 20 |
Page generated on 2024/09/10 John Southworth (Keele University, UK)