This page summarises the information held within TEPCat for the transiting planetary system K2-56. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2016ApJ...830...43E | |
| Date of discovery paper | 2016 / 1 / 29 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 03 34 36.23 | h m s |
| Declination | +20 35 57.2 | d m s |
| Right ascension (decimal) | 53.65096 | degrees |
| Declination (decimal) | 20.59922 | degrees |
| V-band apparent magnitude | 11.04 | mag |
| K-band apparent magnitude | 9.37 | mag |
| Transit duration | 0.236 ( 5.66 ) | day hour |
| Transit depth | 0.06 | % |
| Time of mid-transit | 2457151.9021 ± 0.0045 | HJD or BJD |
| Orbital period | 41.6855 ± 0.0031 | days |
| Reference for orbital ephemeris | 2016ApJ...830...43E |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5766 ± 99 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.15 ± 0.05 | dex |
| Stellar mass | 0.961 +0.032 −0.029 | Msun |
| Stellar radius | 0.928 +0.055 −0.044 | Rsun |
| Stellar logarithmic surface gravity | 4.5 ± 0.08 | c.g.s. |
| Stellar mean density | 1.20 +0.14 −0.18 ( 1.69 +0.20 −0.25 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.36 −0.0 | |
| Orbital semimajor axis | 0.241 +0.019 −0.017 | AU |
| Planetary mass | 0.051 ± 0.019 ( 16.2 ± 6.0 ) | Mjup Mearth |
| Planetary radius | 0.199 +0.013 −0.010 ( 2.23 +0.15 −0.11 ) | Rjup Rearth |
| Planetary surface gravity | 32 ± 12 3.5 ± 0.1 | m/s2 log(cgs) |
| Planetary mean density | 5.9 +2.6 −2.3 ( 7.8 +3.4 −3.1 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 546 +19 −18 | K |
| Reference of detailed study | 2016ApJ...830...43E |
K2-56 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/01/01 John Southworth (Keele University, UK)