This page summarises the information held within TEPCat for the transiting planetary system Kepler-428. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2014A+A...572A..93H | |
| Date of discovery paper | 2014 / 10 / 1 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 22 19.61 | h m s |
| Declination | +40 34 38.6 | d m s |
| Right ascension (decimal) | 290.58171 | degrees |
| Declination (decimal) | 40.57739 | degrees |
| V-band apparent magnitude | 15.47 | mag |
| K-band apparent magnitude | 13.23 | mag |
| Transit duration | 0.1089 ( 2.614 ) | day hour |
| Transit depth | 2.4 | % |
| Time of mid-transit | 2455003.048008 ± 0.000032 | HJD or BJD |
| Orbital period | 3.52563254 ± 0.00000015 | days |
| Reference for orbital ephemeris | 2014A+A...572A..93H |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5150 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.09 ± 0.17 | dex |
| Stellar mass | 0.87 ± 0.05 | Msun |
| Stellar radius | 0.80 ± 0.02 | Rsun |
| Stellar logarithmic surface gravity | 4.571 ± 0.011 | c.g.s. |
| Stellar mean density | 1.208 ± 0.029 ( 1.704 ± 0.041 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.22 −0.0 | |
| Orbital semimajor axis | 0.0433 ± 0.0009 | AU |
| Planetary mass | 1.27 ± 0.19 ( 403 ± 60 ) | Mjup Mearth |
| Planetary radius | 1.08 ± 0.03 ( 12.11 ± 0.34 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.77 ± 0.11 ( 1.02 ± 0.15 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1070 ± 25 | K |
| Reference of detailed study | 2014A+A...572A..93H |
Kepler-428 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/01/29 John Southworth (Keele University, UK)