This page summarises the information held within TEPCat for the transiting planetary system Kepler-117b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2014ApJ...784...45R | |
| Date of discovery paper | 2014 / 3 / 20 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 15 10.33 | h m s |
| Declination | +48 02 24.8 | d m s |
| Right ascension (decimal) | 288.79304 | degrees |
| Declination (decimal) | 48.04022 | degrees |
| V-band apparent magnitude | 14.48 | mag |
| K-band apparent magnitude | 13.01 | mag |
| Transit duration | 0.3024 ( 7.258 ) | day hour |
| Transit depth | 0.24 | % |
| Time of mid-transit | 2454978.82204 ± 0.00035 | HJD or BJD |
| Orbital period | 18.7959228 ± 0.0000075 | days |
| Reference for orbital ephemeris | 2015A+A...573A.124B |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6150 ± 110 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.04 ± 0.10 | dex |
| Stellar mass | 1.129 +0.013 −0.023 | Msun |
| Stellar radius | 1.606 ± 0.049 | Rsun |
| Stellar logarithmic surface gravity | 4.102 ± 0.029 | c.g.s. |
| Stellar mean density | 0.291 +0.010 −0.018 ( 0.411 +0.014 −0.025 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0493 ± 0.0062 | |
| Orbital semimajor axis | 0.1445 +0.0047 −0.0014 | AU |
| Planetary mass | 0.094 ± 0.033 ( 29 ± 10 ) | Mjup Mearth |
| Planetary radius | 0.719 ± 0.024 ( 8.06 ± 0.27 ) | Rjup Rearth |
| Planetary surface gravity | 4.7 +1.2 −1.5 2.67 +0.10 −0.17 | m/s2 log(cgs) |
| Planetary mean density | 0.23 ± 0.08 ( 0.31 ± 0.11 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 984 ± 18 | K |
| Reference of detailed study | 2015A+A...573A.124B |
Kepler-117b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/10 John Southworth (Keele University, UK)