This page summarises the information held within TEPCat for the transiting planetary system WASP-39. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2011A+A...531A..40F | |
| Date of discovery paper | 2011 / 2 / 8 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 14 29 18.42 | h m s |
| Declination | −03 26 40.1 | d m s |
| Right ascension (decimal) | 217.32675 | degrees |
| Declination (decimal) | -3.44447 | degrees |
| V-band apparent magnitude | 12.10 | mag |
| K-band apparent magnitude | 10.20 | mag |
| Transit duration | 0.1168 ( 2.803 ) | day hour |
| Transit depth | 2.5 | % |
| Time of mid-transit | 2455342.9696 ± 0.00014 | HJD or BJD |
| Orbital period | 4.05528047 ± 0.0000007 | days |
| Reference for orbital ephemeris | 2016ApJ...827...19F |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5485 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.01 ± 0.09 | dex |
| Stellar mass | 0.913 ± 0.046 | Msun |
| Stellar radius | 0.939 ± 0.022 | Rsun |
| Stellar logarithmic surface gravity | 4.453 ± 0.018 | c.g.s. |
| Stellar mean density | 1.103 ± 0.057 ( 1.556 ± 0.080 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.04828 ± 0.00081 | AU |
| Planetary mass | 0.281 ± 0.032 ( 89 ± 10 ) | Mjup Mearth |
| Planetary radius | 1.279 ± 0.040 ( 14.34 ± 0.45 ) | Rjup Rearth |
| Planetary surface gravity | 4.26 ± 0.50 2.63 ± 0.05 | m/s2 log(cgs) |
| Planetary mean density | 0.126 ± 0.017 ( 0.167 ± 0.023 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1166 ± 14 | K |
| Reference of detailed study | 2018A+A...613A..41M |
| Reference | λ (degrees) |
|---|---|
| Mancini et al. (2018) | 0 ± 11 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)