This page summarises the information held within TEPCat for the transiting planetary system WASP-87. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:1410.3449 | |
| Date of discovery paper | 2014 / 10 / 14 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 12 21 17.92 | h m s |
| Declination | −52 50 27.0 | d m s |
| Right ascension (decimal) | 185.32467 | degrees |
| Declination (decimal) | -52.84083 | degrees |
| V-band apparent magnitude | 10.74 | mag |
| K-band apparent magnitude | 9.60 | mag |
| Transit duration | 0.12436 ( 2.9846 ) | day hour |
| Transit depth | 0.7 | % |
| Time of mid-transit | 2456361.84030 ± 0.00021 | HJD or BJD |
| Orbital period | 1.6827950 ± 0.0000019 | days |
| Reference for orbital ephemeris | arXiv:1410.3449 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6450 ± 120 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.41 ± 0.10 | dex |
| Stellar mass | 1.204 ± 0.093 | Msun |
| Stellar radius | 1.627 ± 0.062 | Rsun |
| Stellar logarithmic surface gravity | 4.096 ± 0.023 | c.g.s. |
| Stellar mean density | 0.280 ± 0.021 ( 0.395 ± 0.030 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.099 −0.0 | |
| Orbital semimajor axis | 0.02946 ± 0.00075 | AU |
| Planetary mass | 2.18 ± 0.15 ( 693 ± 47 ) | Mjup Mearth |
| Planetary radius | 1.385 ± 0.060 ( 15.52 ± 0.67 ) | Rjup Rearth |
| Planetary surface gravity | 26.1 ± 1.9 3.42 ± 0.03 | m/s2 log(cgs) |
| Planetary mean density | 0.823 ± 0.088 ( 1.09 ± 0.12 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 2322 ± 50 | K |
| Reference of detailed study | arXiv:1410.3449 |
| Reference | λ (degrees) |
|---|---|
| Addison et al. (2016) | −8 ± 11 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)