This page summarises the information held within TEPCat for the transiting system K2-259b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018AJ....156...78L | |
| Date of discovery paper | 2018 / 7 / 2 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 12 27 12.64 | h m s |
| Declination | +01 34 00.6 | d m s |
| Right ascension (decimal) | 186.80267 | degrees |
| Declination (decimal) | 1.56683 | degrees |
| V-band apparent magnitude | 12.40 | mag |
| K-band apparent magnitude | 11.12 | mag |
| Transit duration | 0.2038 ( 4.891 ) | day hour |
| Transit depth | 0.04 | % |
| Time of mid-transit | 2457585.70940 ± 0.01000 | HJD or BJD |
| Orbital period | 15.4804300 ± 0.0033200 | days |
| Reference for orbital ephemeris | 2018AJ....156...78L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6059 +62 −76 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.16 ± 0.04 | dex |
| Stellar mass | 1.140 ± 0.030 | Msun |
| Stellar radius | 1.130 +0.030 −0.020 | Rsun |
| Stellar logarithmic surface gravity | 4.390 +0.020 −0.030 | c.g.s. |
| Stellar mean density | 1.500 ± 0.800 ( 2.1 ± 1.1 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.12710 +0.00100 −0.00110 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.207 +0.018 −0.015 ( 2.32 +0.20 −0.17 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 795 ± 13 | K |
| Reference of detailed study | 2018AJ....156...78L |
K2-259b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)