This page summarises the information held within TEPCat for the transiting system Kepler-857b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2016ApJ...822...86M | |
| Date of discovery paper | 2016 / 5 / 10 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 38 31.77 | h m s |
| Declination | +43 24 01.7 | d m s |
| Right ascension (decimal) | 294.63238 | degrees |
| Declination (decimal) | 43.40047 | degrees |
| V-band apparent magnitude | 15.25 | mag |
| K-band apparent magnitude | 13.40 | mag |
| Transit duration | 0.2813 ( 6.751 ) | day hour |
| Transit depth | 0.47 | % |
| Time of mid-transit | 2454994.00761 ± 0.00094 | HJD or BJD |
| Orbital period | 85.3514875 ± 0.0001029 | days |
| Reference for orbital ephemeris | 2016ApJ...822...86M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5773 +125 −174 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.02 +0.12 −0.17 | dex |
| Stellar mass | 0.990 +0.080 −0.050 | Msun |
| Stellar radius | 0.990 +0.250 −0.100 | Rsun |
| Stellar logarithmic surface gravity | 4.450 +0.070 −0.170 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | AU | |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.563 +0.077 −0.032 ( 6.31 +0.86 −0.36 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 390 | K |
| Reference of detailed study | 2016ApJ...822...86M |
Kepler-857b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)