This page summarises the information held within TEPCat for the transiting planetary system K2-99. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2017MNRAS.464.2708S | |
| Date of discovery paper | 2016 / 9 / 2 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 13 55 05.70 | h m s |
| Declination | −05 26 32.9 | d m s |
| Right ascension (decimal) | 208.77375 | degrees |
| Declination (decimal) | -5.44247 | degrees |
| V-band apparent magnitude | 11.15 | mag |
| K-band apparent magnitude | 9.72 | mag |
| Transit duration | 0.462 ( 11.09 ) | day hour |
| Transit depth | 0.2 | % |
| Time of mid-transit | 2458182.7133 ± 0.0005 | HJD or BJD |
| Orbital period | 18.24783 ± 0.00003 | days |
| Reference for orbital ephemeris | 2022MNRAS.510.5035S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6069 ± 92 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.20 ± 0.07 | dex |
| Stellar mass | 1.44 ± 0.03 | Msun |
| Stellar radius | 2.55 ± 0.02 | Rsun |
| Stellar logarithmic surface gravity | 3.738 ± 0.004 | c.g.s. |
| Stellar mean density | 0.055 ± 0.002 ( 0.0776 ± 0.0028 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.22 ± 0.01 | |
| Orbital semimajor axis | 0.153 ± 0.001 | AU |
| Planetary mass | 0.87 ± 0.02 ( 276.56 ± 6.36 ) | Mjup Mearth |
| Planetary radius | 1.06 ± 0.01 ( 11.88 ± 0.11 ) | Rjup Rearth |
| Planetary surface gravity | 19.5 ± 0.9 3.29 ± 0.02 | m/s2 log(cgs) |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1184 ± 19 | K |
| Reference of detailed study | 2022MNRAS.510.5035S |
K2-99 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/11/22 John Southworth (Keele University, UK)