This page summarises the information held within TEPCat for the transiting planetary system K2-287. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019AJ....157..100J | |
| Date of discovery paper | 2018 / 9 / 25 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 15 32 17.84 | h m s |
| Declination | −22 21 29.7 | d m s |
| Right ascension (decimal) | 233.07433 | degrees |
| Declination (decimal) | -22.35825 | degrees |
| V-band apparent magnitude | 11.41 | mag |
| K-band apparent magnitude | 9.19 | mag |
| Transit duration | 0.17 ( 4.1 ) | day hour |
| Transit depth | 0.7 | % |
| Time of mid-transit | 2458001.72138 ± 0.00016 | HJD or BJD |
| Orbital period | 14.893291 ± 0.000025 | days |
| Reference for orbital ephemeris | 2019AJ....157..100J |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5625 ± 64 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.27 ± 0.04 | dex |
| Stellar mass | 1.03 ± 0.04 | Msun |
| Stellar radius | 1.10 ± 0.01 | Rsun |
| Stellar logarithmic surface gravity | 4.32 ± 0.11 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.478 +0.025 −0.026 | |
| Orbital semimajor axis | 0.1204 +0.0008 −0.0011 | AU |
| Planetary mass | 0.31 ± 0.03 ( 98.5 ± 9.5 ) | Mjup Mearth |
| Planetary radius | 0.88 ± 0.01 ( 9.86 ± 0.11 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 808 +7 −9 | K |
| Reference of detailed study | 2021MNRAS.506.3810B |
K2-287 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/12 John Southworth (Keele University, UK)