This page summarises the information held within TEPCat for the transiting planetary system K2-77. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2017MNRAS.464..850G | |
| Date of discovery paper | 2016 / 6 / 21 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 03 40 54.82 | h m s |
| Declination | +12 34 21.4 | d m s |
| Right ascension (decimal) | 55.22842 | degrees |
| Declination (decimal) | 12.57261 | degrees |
| V-band apparent magnitude | 12.16 | mag |
| K-band apparent magnitude | 9.80 | mag |
| Transit duration | 0.109 ( 2.62 ) | day hour |
| Transit depth | 0.1 | % |
| Time of mid-transit | 2457316.80766 ± 0.00098 | HJD or BJD |
| Orbital period | 8.2000844 ± 0.00080 | days |
| Reference for orbital ephemeris | 2023AJ....165..155T |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4970 ± 45 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.29 ± 0.06 | dex |
| Stellar mass | 0.80 ± 0.12 | Msun |
| Stellar radius | 0.76 ± 0.03 | Rsun |
| Stellar logarithmic surface gravity | 4.47 ± 0.13 | c.g.s. |
| Stellar mean density | 1.8 ± 0.3 ( 2.54 ± 0.42 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.14 +0.22 −0.09 | |
| Orbital semimajor axis | AU | |
| Planetary mass | 0.0 +1.9 −0.0 ( 0 +603 −0 ) | Mjup Mearth |
| Planetary radius | 0.205 ± 0.014 ( 2.30 ± 0.16 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2017MNRAS.464..850G |
K2-77 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/10 John Southworth (Keele University, UK)