This page summarises the information held within TEPCat for the transiting system Kepler-644b. 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 41 54.17 | h m s |
| Declination | +43 29 35.3 | d m s |
| Right ascension (decimal) | 295.47571 | degrees |
| Declination (decimal) | 43.49314 | degrees |
| V-band apparent magnitude | 14.09 | mag |
| K-band apparent magnitude | 12.57 | mag |
| Transit duration | 0.1503 ( 3.607 ) | day hour |
| Transit depth | 0.03 | % |
| Time of mid-transit | 2455003.92525 ± 0.00100 | HJD or BJD |
| Orbital period | 3.1739140 ± 0.0000044 | days |
| Reference for orbital ephemeris | 2016ApJ...822...86M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6747 +156 −239 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.08 +0.14 −0.15 | dex |
| Stellar mass | 1.490 +0.220 −0.130 | Msun |
| Stellar radius | 1.810 +0.670 −0.350 | Rsun |
| Stellar logarithmic surface gravity | 4.090 +0.150 −0.210 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | AU | |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.274 +0.092 −0.068 ( 3.07 +1.03 −0.76 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1655 | K |
| Reference of detailed study | 2016ApJ...822...86M |
Kepler-644b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)