This page summarises the information held within TEPCat for the transiting system K2-268b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018AJ....156..277L | |
| Date of discovery paper | 2018 / 10 / 10 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 08 54 50.29 | h m s |
| Declination | +11 50 53.7 | d m s |
| Right ascension (decimal) | 133.70954 | degrees |
| Declination (decimal) | 11.84825 | degrees |
| V-band apparent magnitude | 13.38 | mag |
| K-band apparent magnitude | 11.64 | mag |
| Transit duration | 0.0807 ( 1.937 ) | day hour |
| Transit depth | 0.03 | % |
| Time of mid-transit | 2457143.65197 ± 0.00754 | HJD or BJD |
| Orbital period | 2.1518940 ± 0.0003930 | days |
| Reference for orbital ephemeris | 2018AJ....156..277L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5068 ± 51 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.03 ± 0.06 | dex |
| Stellar mass | 0.840 ± 0.020 | Msun |
| Stellar radius | 0.780 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.590 ± 0.010 | c.g.s. |
| Stellar mean density | 1.462 +1.299 −0.814 ( 2.1 +1.8 −1.1 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.03080 ± 0.00020 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.126 ± 0.012 ( 1.41 ± 0.13 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1121 ± 14 | K |
| Reference of detailed study | 2018AJ....156..277L |
K2-268b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)