This page summarises the information held within TEPCat for the transiting planetary system Kepler-438b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2015ApJ...800...99T | |
| Date of discovery paper | 2015 / 1 / 7 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 18 46 34.99 | h m s |
| Declination | +41 57 03.9 | d m s |
| Right ascension (decimal) | 281.64579 | degrees |
| Declination (decimal) | 41.95108 | degrees |
| V-band apparent magnitude | 15.16 | mag |
| K-band apparent magnitude | 11.20 | mag |
| Transit duration | 0.145 ( 3.48 ) | day hour |
| Transit depth | 0.04 | % |
| Time of mid-transit | 2455673.0307 ± 0.0044 | HJD or BJD |
| Orbital period | 35.23319 ± 0.00025 | days |
| Reference for orbital ephemeris | 2015ApJ...800...99T |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3748 ± 112 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.16 ± 0.14 | dex |
| Stellar mass | 0.544 +0.041 −0.061 | Msun |
| Stellar radius | 0.520 +0.038 −0.061 | Rsun |
| Stellar logarithmic surface gravity | 4.740 +0.059 −0.029 | c.g.s. |
| Stellar mean density | 3.91 +1.08 −0.55 ( 5.52 +1.52 −0.78 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.03 +0.10 −0.03 | |
| Orbital semimajor axis | 0.166 +0.051 −0.042 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.100 +0.014 −0.015 ( 1.12 +0.16 −0.17 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2015ApJ...800...99T |
Kepler-438b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/04 John Southworth (Keele University, UK)