This page summarises the information held within TEPCat for the transiting planetary system Kepler-42d. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2012ApJ...747..144M | |
| Date of discovery paper | 2012 / 1 / 11 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 28 52.57 | h m s |
| Declination | +44 37 09.0 | d m s |
| Right ascension (decimal) | 292.21904 | degrees |
| Declination (decimal) | 44.61917 | degrees |
| V-band apparent magnitude | 16.12 | mag |
| K-band apparent magnitude | 11.46 | mag |
| Transit duration | 0.017 ( 0.41 ) | day hour |
| Transit depth | 0.12 | % |
| Time of mid-transit | 2454964.92800 ± 0.00040 | HJD or BJD |
| Orbital period | 1.86511236 ± 0.00000073 | days |
| Reference for orbital ephemeris | 2017AJ....153..267M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3258 ± 21 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.50 ± 0.09 | dex |
| Stellar mass | 0.144 +0.007 −0.006 | Msun |
| Stellar radius | 0.141 ± 0.008 | Rsun |
| Stellar logarithmic surface gravity | c.g.s. | |
| Stellar mean density | 26.8 +1.8 −1.7 ( 37.8 + 2.5 − 2.4 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.24 −0.0 | |
| Orbital semimajor axis | AU | |
| Planetary mass | 0.0 +0.0028 −0.0 ( 0.00 +0.89 −0.00 ) | Mjup Mearth |
| Planetary radius | 0.060 +0.004 −0.003 ( 0.673 +0.045 −0.034 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2017AJ....153..267M |
Kepler-42d does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/01/29 John Southworth (Keele University, UK)