This page summarises the information held within TEPCat for the transiting planetary system Kepler-31d. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2014ApJ...784...45R | |
| Date of discovery paper | 2012 / 1 / 27 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 36 05.52 | h m s |
| Declination | +45 51 11.1 | d m s |
| Right ascension (decimal) | 294.02300 | degrees |
| Declination (decimal) | 45.85308 | degrees |
| V-band apparent magnitude | 15.35 | mag |
| K-band apparent magnitude | 13.87 | mag |
| Transit duration | 0.3665 ( 8.796 ) | day hour |
| Transit depth | 0.11 | % |
| Time of mid-transit | 2454967.93828 ± 0.00468 | HJD or BJD |
| Orbital period | 87.648901 ± 0.000801 | days |
| Reference for orbital ephemeris | 2014ApJ...784...45R |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6091 +64 −65 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.08 ± 0.05 | dex |
| Stellar mass | 1.12 ± 0.06 | Msun |
| Stellar radius | 1.42 +0.23 −0.19 | Rsun |
| Stellar logarithmic surface gravity | 4.18 ± 0.11 | c.g.s. |
| Stellar mean density | 0.645 ± 0.406 ( 0.91 ± 0.57 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | AU | |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.443 ± 0.067 ( 4.97 ± 0.75 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 506 ± 39 | K |
| Reference of detailed study | 2017AJ....154..108J |
Kepler-31d does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)