This page summarises the information held within TEPCat for the transiting planetary system Kepler-391c. 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 22 29.24 | h m s |
| Declination | +51 03 26.3 | d m s |
| Right ascension (decimal) | 290.62183 | degrees |
| Declination (decimal) | 51.05731 | degrees |
| V-band apparent magnitude | 13.23 | mag |
| K-band apparent magnitude | 10.97 | mag |
| Transit duration | 0.4325 ( 10.380 ) | day hour |
| Transit depth | 0.01 | % |
| Time of mid-transit | 2454979.92391 ± 0.01078 | HJD or BJD |
| Orbital period | 20.485435 ± 0.000393 | days |
| Reference for orbital ephemeris | 2020A+A...634A..29J |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5038 ± 57 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.04 ± 0.02 | dex |
| Stellar mass | 1.270 ± 0.081 | Msun |
| Stellar radius | 2.88 ± 0.32 | Rsun |
| Stellar logarithmic surface gravity | 3.62 ± 0.05 | c.g.s. |
| Stellar mean density | 0.052 ± 0.094 ( 0.073 ± 0.133 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.23 −0.0 | |
| Orbital semimajor axis | 0.164 +0.026 −0.022 | AU |
| Planetary mass | 0.0 +1.4 −0.0 ( 0 +445 −0 ) | Mjup Mearth |
| Planetary radius | 0.257 ± 0.029 ( 2.88 ± 0.33 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.0 +300 −0.0 ( 0 +** − 0 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 662 +89 −97 | K |
| Reference of detailed study | 2020A+A...634A..29J |
Kepler-391c does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/01/01 John Southworth (Keele University, UK)