This page summarises the information held within TEPCat for the transiting planetary system Kepler-57b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2013ApJS..208...22X | |
| Date of discovery paper | 2012 / 8 / 17 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 34 33.91 | h m s |
| Declination | +44 39 25.3 | d m s |
| Right ascension (decimal) | 293.64129 | degrees |
| Declination (decimal) | 44.65703 | degrees |
| V-band apparent magnitude | 15.01 | mag |
| K-band apparent magnitude | 12.89 | mag |
| Transit duration | 0.0440 ( 1.056 ) | day hour |
| Transit depth | 0.09 | % |
| Time of mid-transit | 2454971.55826 ± 0.00077 | HJD or BJD |
| Orbital period | 5.729329 ± 0.000007 | days |
| Reference for orbital ephemeris | 2014ApJ...784...45R |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5188 ± 91 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.04 ± 0.50 | dex |
| Stellar mass | 0.859 ± 0.049 | Msun |
| Stellar radius | 0.826 ± 0.019 | Rsun |
| Stellar logarithmic surface gravity | 4.60 ± 0.30 | c.g.s. |
| Stellar mean density | 1.51 ± 0.15 ( 2.13 ± 0.21 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0162 +0.0024 −0.0021 | |
| Orbital semimajor axis | AU | |
| Planetary mass | 0.079 +0.016 −0.015 ( 25.1 +5.1 −4.8 ) | Mjup Mearth |
| Planetary radius | 0.2797 +0.0080 −0.0079 ( 3.135 +0.090 −0.089 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2023A+A...669A.117L |
Kepler-57b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/12 John Southworth (Keele University, UK)