This page summarises the information held within TEPCat for the transiting planetary system Kepler-1657. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019A+A...623A.104H | |
| Date of discovery paper | 2018 / 11 / 26 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 33 07.58 | h m s |
| Declination | +45 18 34.8 | d m s |
| Right ascension (decimal) | 293.28158 | degrees |
| Declination (decimal) | 45.30967 | degrees |
| V-band apparent magnitude | 14.67 | mag |
| K-band apparent magnitude | 13.10 | mag |
| Transit duration | 0.2807 ( 6.737 ) | day hour |
| Transit depth | 1.4 | % |
| Time of mid-transit | 2455936.65434 ± 0.00018 | HJD or BJD |
| Orbital period | 141.241671 ± 0.000086 | days |
| Reference for orbital ephemeris | 2019A+A...623A.104H |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5830 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.16 ± 0.07 | dex |
| Stellar mass | 1.01 +0.07 −0.16 | Msun |
| Stellar radius | 0.96 +0.05 −0.06 | Rsun |
| Stellar logarithmic surface gravity | 4.473 +0.027 −0.034 | c.g.s. |
| Stellar mean density | 1.33 +0.28 −0.24 ( 1.88 +0.40 −0.34 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.496 ± 0.031 | |
| Orbital semimajor axis | 0.534 +0.012 −0.030 | AU |
| Planetary mass | 1.93 +0.19 −0.21 ( 613 +60 −66 ) | Mjup Mearth |
| Planetary radius | 0.99 +0.06 −0.07 ( 11.10 + 0.67 − 0.78 ) | Rjup Rearth |
| Planetary surface gravity | 49.0 +6.0 −5.3 3.69 +0.05 −0.05 | m/s2 log(cgs) |
| Planetary mean density | 1.85 +0.32 −0.27 ( 2.45 +0.42 −0.36 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 347 ± 12 | K |
| Reference of detailed study | 2019A+A...623A.104H |
Kepler-1657 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/10 John Southworth (Keele University, UK)