This page summarises the information held within TEPCat for the transiting planetary system WASP-12. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2009ApJ...693.1920H | |
| Date of discovery paper | 2008 / 12 / 17 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 06 30 32.79 | h m s |
| Declination | +29 40 20.4 | d m s |
| Right ascension (decimal) | 97.63663 | degrees |
| Declination (decimal) | 29.67233 | degrees |
| V-band apparent magnitude | 11.69 | mag |
| K-band apparent magnitude | 10.19 | mag |
| Transit duration | 0.12483 ( 2.9959 ) | day hour |
| Transit depth | 1.6 | % |
| Time of mid-transit | 2454508.978942 ± 0.000047 | HJD or BJD |
| Orbital period | 1.091419487 ± 0.000000020 | days |
| Reference for orbital ephemeris | 2022AJ....164..220H |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6265 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.12 ± 0.07 | dex |
| Stellar mass | 1.325 +0.026 −0.018 | Msun |
| Stellar radius | 1.690 +0.019 −0.018 | Rsun |
| Stellar logarithmic surface gravity | 4.11 ± 0.11 | c.g.s. |
| Stellar mean density | 0.274 ± 0.010 ( 0.387 ± 0.014 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.053 −0.0 | |
| Orbital semimajor axis | 0.0234 ± 0.0010 | AU |
| Planetary mass | 1.470 +0.076 −0.069 ( 467 +24 −21 ) | Mjup Mearth |
| Planetary radius | 1.965 +0.088 −0.087 ( 22.03 + 0.99 − 0.98 ) | Rjup Rearth |
| Planetary surface gravity | 10.09 +0.35 −0.34 3.00 +0.01 −0.01 | m/s2 log(cgs) |
| Planetary mean density | 0.201 ± 0.011 ( 0.267 ± 0.015 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 2580 +58 −62 | K |
| Reference of detailed study | arXiv:2402.12120 |
| Reference | λ (degrees) |
|---|---|
| Albrecht et al. (2012) | 59 + 15 - 20 |
Page generated on 2025/03/12 John Southworth (Keele University, UK)