This page summarises the information held within TEPCat for the transiting planetary system WASP-22. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2010AJ....140.2007M | |
| Date of discovery paper | 2010 / 4 / 9 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 03 31 16.32 | h m s |
| Declination | −23 49 10.9 | d m s |
| Right ascension (decimal) | 52.81800 | degrees |
| Declination (decimal) | -23.81969 | degrees |
| V-band apparent magnitude | 11.71 | mag |
| K-band apparent magnitude | 10.32 | mag |
| Transit duration | 0.1450 ( 3.480 ) | day hour |
| Transit depth | 1.2 | % |
| Time of mid-transit | 2455532.72776 ± 0.00022 | HJD or BJD |
| Orbital period | 3.53273064 ± 0.00000070 | days |
| Reference for orbital ephemeris | 2016MNRAS.457.4205S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6153 ± 46 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.26 ± 0.03 | dex |
| Stellar mass | 1.249 +0.075 −0.033 | Msun |
| Stellar radius | 1.255 ± 0.030 | Rsun |
| Stellar logarithmic surface gravity | 4.338 +0.027 −0.020 | c.g.s. |
| Stellar mean density | 0.632 +0.043 −0.041 ( 0.892 +0.061 −0.058 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.063 −0.0 | |
| Orbital semimajor axis | 0.0489 ± 0.0010 | AU |
| Planetary mass | 0.617 +0.028 −0.018 ( 196.14 +8.90 −5.72 ) | Mjup Mearth |
| Planetary radius | 1.199 +0.046 −0.027 ( 13.44 + 0.52 − 0.30 ) | Rjup Rearth |
| Planetary surface gravity | 10.63 +0.53 −0.71 3.03 +0.02 −0.03 | m/s2 log(cgs) |
| Planetary mean density | 0.334 +0.024 −0.033 ( 0.443 +0.032 −0.044 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1502 ± 20 | K |
| Reference of detailed study | 2016MNRAS.457.4205S |
| Reference | λ (degrees) |
|---|---|
| Anderson et al. (2011) | 22 ± 16 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)