This page summarises the information held within TEPCat for the transiting system Kepler-639b. 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 28 44.85 | h m s |
| Declination | +41 43 37.3 | d m s |
| Right ascension (decimal) | 292.18687 | degrees |
| Declination (decimal) | 41.72703 | degrees |
| V-band apparent magnitude | 13.45 | mag |
| K-band apparent magnitude | 11.89 | mag |
| Transit duration | 0.2425 ( 5.820 ) | day hour |
| Transit depth | 0.03 | % |
| Time of mid-transit | 2455003.70466 ± 0.00100 | HJD or BJD |
| Orbital period | 10.2141879 ± 0.0000201 | days |
| Reference for orbital ephemeris | 2016ApJ...822...86M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5896 +77 −60 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.23 +0.08 −0.07 | dex |
| Stellar mass | 1.140 +0.080 −0.170 | Msun |
| Stellar radius | 1.290 +0.260 −0.180 | Rsun |
| Stellar logarithmic surface gravity | 4.270 +0.120 −0.130 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | AU | |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.204 +0.034 −0.033 ( 2.29 +0.38 −0.37 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 957 | K |
| Reference of detailed study | 2016ApJ...822...86M |
Kepler-639b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)