This page summarises the information held within TEPCat for the transiting system K2-249b. 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 13 28.00 | h m s |
| Declination | −08 59 42.4 | d m s |
| Right ascension (decimal) | 183.36667 | degrees |
| Declination (decimal) | -8.99511 | degrees |
| V-band apparent magnitude | 12.30 | mag |
| K-band apparent magnitude | 10.88 | mag |
| Transit duration | 0.2506 ( 6.014 ) | day hour |
| Transit depth | 0.03 | % |
| Time of mid-transit | 2457583.04570 ± 0.01060 | HJD or BJD |
| Orbital period | 12.4090000 ± 0.0033700 | days |
| Reference for orbital ephemeris | 2018AJ....156...78L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6504 +329 −419 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.04 +0.14 −0.16 | dex |
| Stellar mass | 1.320 +0.090 −0.120 | Msun |
| Stellar radius | 1.570 ± 0.060 | Rsun |
| Stellar logarithmic surface gravity | 4.160 +0.050 −0.060 | c.g.s. |
| Stellar mean density | 0.300 +0.100 −0.200 ( 0.42 +0.14 −0.28 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.11510 +0.00300 −0.00310 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.249 +0.024 −0.020 ( 2.79 +0.27 −0.22 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1061 ± 66 | K |
| Reference of detailed study | 2018AJ....156...78L |
K2-249b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)