This page summarises the information held within TEPCat for the transiting planetary system WASP-139. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2017MNRAS.465.3693H | |
| Date of discovery paper | 2016 / 4 / 15 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 03 18 14.91 | h m s |
| Declination | −41 18 07.4 | d m s |
| Right ascension (decimal) | 49.56212 | degrees |
| Declination (decimal) | -41.30206 | degrees |
| V-band apparent magnitude | 12.39 | mag |
| K-band apparent magnitude | 10.47 | mag |
| Transit duration | 0.118 ( 2.83 ) | day hour |
| Transit depth | 1.3 | % |
| Time of mid-transit | 2456870.9582 ± 0.0002 | HJD or BJD |
| Orbital period | 5.9242705 ± 0.0000008 | days |
| Reference for orbital ephemeris | 2024AJ....168..185E |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5233 ± 60 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.20 ± 0.09 | dex |
| Stellar mass | 0.84 ± 0.03 | Msun |
| Stellar radius | 0.810 ± 0.008 | Rsun |
| Stellar logarithmic surface gravity | 4.56 ± 0.02 | c.g.s. |
| Stellar mean density | 1.6 ± 0.1 ( 2.26 ± 0.14 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.103 +0.050 −0.041 | |
| Orbital semimajor axis | 0.061 ± 0.001 | AU |
| Planetary mass | 0.118 ± 0.017 ( 37.5 ± 5.4 ) | Mjup Mearth |
| Planetary radius | 0.79 ± 0.01 ( 8.86 ± 0.11 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.23 ± 0.04 ( 0.305 ± 0.053 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 910 ± 30 | K |
| Reference of detailed study | 2024AJ....168..185E |
| Reference | λ (degrees) |
|---|---|
| Espinoza-Retamal et al. (2024) | −85.6 + 7.7 - 4.2 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)