This page summarises the information held within TEPCat for the transiting system K2-8b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2015ApJ...809...25M | |
| Date of discovery paper | 2015 / 8 / 13 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 11 19 10.48 | h m s |
| Declination | −00 17 03.8 | d m s |
| Right ascension (decimal) | 169.79367 | degrees |
| Declination (decimal) | -0.28439 | degrees |
| V-band apparent magnitude | 14.29 | mag |
| K-band apparent magnitude | 12.24 | mag |
| Transit duration | 0.140 ( 3.36 ) | day hour |
| Transit depth | 0.07 | % |
| Time of mid-transit | 2456813.6119 ± 0.0053 | HJD or BJD |
| Orbital period | 10.35176 ± 0.00133 | days |
| Reference for orbital ephemeris | 2015ApJ...809...25M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4890 +38 −58 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.01 +0.11 −0.13 | dex |
| Stellar mass | 0.79 +0.03 −0.04 | Msun |
| Stellar radius | 0.74 +0.02 −0.03 | Rsun |
| Stellar logarithmic surface gravity | c.g.s. | |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0856 ± 0.0012 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.265 ± 0.045 ( 2.97 ± 0.50 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 691 ± 14 | K |
| Reference of detailed study | 2015ApJ...809...25M |
K2-8b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)