This page summarises the information held within TEPCat for the transiting planetary system Kepler-442b. 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 | 19 01 27.98 | h m s |
| Declination | +39 16 48.3 | d m s |
| Right ascension (decimal) | 285.36658 | degrees |
| Declination (decimal) | 39.28008 | degrees |
| V-band apparent magnitude | 15.33 | mag |
| K-band apparent magnitude | 12.49 | mag |
| Transit duration | 0.234 ( 5.62 ) | day hour |
| Transit depth | 0.06 | % |
| Time of mid-transit | 2455849.5578 ± 0.0067 | HJD or BJD |
| Orbital period | 112.3053 ± 0.0024 | days |
| Reference for orbital ephemeris | 2015ApJ...800...99T |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4402 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.37 ± 0.10 | dex |
| Stellar mass | 0.609 +0.030 −0.026 | Msun |
| Stellar radius | 0.598 +0.023 −0.024 | Rsun |
| Stellar logarithmic surface gravity | 4.673 +0.018 −0.021 | c.g.s. |
| Stellar mean density | 2.84 +0.26 −0.21 ( 4.01 +0.37 −0.30 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.04 +0.08 −0.04 | |
| Orbital semimajor axis | 0.409 +0.209 −0.060 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.120 +0.010 −0.016 ( 1.35 +0.11 −0.18 ) | 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-442b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)