This page summarises the information held within TEPCat for the transiting planetary system WASP-166. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019MNRAS.488.3067H | |
| Date of discovery paper | 2018 / 11 / 14 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 09 39 30.09 | h m s |
| Declination | −20 58 56.9 | d m s |
| Right ascension (decimal) | 144.87538 | degrees |
| Declination (decimal) | -20.98247 | degrees |
| V-band apparent magnitude | 9.36 | mag |
| K-band apparent magnitude | 8.03 | mag |
| Transit duration | 0.1503 ( 3.607 ) | day hour |
| Transit depth | 0.3 | % |
| Time of mid-transit | 2458524.40869 ± 0.00030 | HJD or BJD |
| Orbital period | 5.4435422 ± 0.0000030 | days |
| Reference for orbital ephemeris | 2022MNRAS.516..298D |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6050 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.19 ± 0.05 | dex |
| Stellar mass | 1.19 ± 0.06 | Msun |
| Stellar radius | 1.22 ± 0.06 | Rsun |
| Stellar logarithmic surface gravity | 4.34 ± 0.04 | c.g.s. |
| Stellar mean density | 0.616 ± 0.031 ( 0.869 ± 0.044 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.07 −0.0 | |
| Orbital semimajor axis | 0.0642 ± 0.0001 | AU |
| Planetary mass | 0.102 ± 0.004 ( 32.4 ± 1.3 ) | Mjup Mearth |
| Planetary radius | 0.63 ± 0.03 ( 7.06 ± 0.34 ) | Rjup Rearth |
| Planetary surface gravity | 5.75 +0.56 −0.51 2.76 +0.04 −0.04 | m/s2 log(cgs) |
| Planetary mean density | 0.40 ± 0.05 ( 0.531 ± 0.066 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1270 ± 20 | K |
| Reference of detailed study | 2022MNRAS.516..298D |
| Reference | λ (degrees) |
|---|---|
| Hellier et al. (2018) | −3 ± 5 |
| Doyle et al. (2022) | −15.5 + 2.9 - 2.8 |
| Bourrier et al. (2023) | −0.7 ± 0.6 |
Page generated on 2023/09/01 John Southworth (Keele University, UK)