This page summarises the information held within TEPCat for the transiting system Kepler-638b. 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 | 18 59 40.66 | h m s |
| Declination | +41 37 01.8 | d m s |
| Right ascension (decimal) | 284.91942 | degrees |
| Declination (decimal) | 41.61717 | degrees |
| V-band apparent magnitude | 13.74 | mag |
| K-band apparent magnitude | 11.68 | mag |
| Transit duration | 0.2968 ( 7.123 ) | day hour |
| Transit depth | 0.03 | % |
| Time of mid-transit | 2455003.58389 ± 0.00200 | HJD or BJD |
| Orbital period | 6.0797202 ± 0.0000140 | days |
| Reference for orbital ephemeris | 2016ApJ...822...86M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5382 +50 −59 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.04 +0.11 −0.12 | dex |
| Stellar mass | 0.880 +0.040 −0.140 | Msun |
| Stellar radius | 0.930 +0.290 −0.090 | Rsun |
| Stellar logarithmic surface gravity | 4.430 +0.110 −0.200 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | AU | |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.207 +0.037 −0.049 ( 2.32 +0.41 −0.55 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1111 | K |
| Reference of detailed study | 2016ApJ...822...86M |
Kepler-638b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)