This page summarises the information held within TEPCat for the transiting system K2-277b. 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 | 13 28 03.99 | h m s |
| Declination | −15 56 16.1 | d m s |
| Right ascension (decimal) | 202.01663 | degrees |
| Declination (decimal) | -15.93781 | degrees |
| V-band apparent magnitude | 10.00 | mag |
| K-band apparent magnitude | 8.69 | mag |
| Transit duration | 0.1346 ( 3.230 ) | day hour |
| Transit depth | 0.04 | % |
| Time of mid-transit | 2457221.22958 ± 0.00221 | HJD or BJD |
| Orbital period | 6.326768 ± 0.000014 | days |
| Reference for orbital ephemeris | arXiv:2301.01306 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5741 ± 65 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.11 ± 0.05 | dex |
| Stellar mass | 1.020 ± 0.030 | Msun |
| Stellar radius | 0.970 ± 0.020 | Rsun |
| Stellar logarithmic surface gravity | 4.480 ± 0.020 | c.g.s. |
| Stellar mean density | 4.920 +2.709 −1.999 ( 6.9 +3.8 −2.8 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.06750 ± 0.00060 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.185 ± 0.011 ( 2.07 ± 0.12 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 958 ± 14 | K |
| Reference of detailed study | 2018AJ....156..277L |
K2-277b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)