This page summarises the information held within TEPCat for the transiting system K2-181b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018AJ....156..277L | |
| Date of discovery paper | 2018 / 10 / 10 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 08 30 12.96 | h m s |
| Declination | +10 54 37.0 | d m s |
| Right ascension (decimal) | 127.55400 | degrees |
| Declination (decimal) | 10.91028 | degrees |
| V-band apparent magnitude | 12.46 | mag |
| K-band apparent magnitude | 11.03 | mag |
| Transit duration | 0.1547 ( 3.713 ) | day hour |
| Transit depth | 0.06 | % |
| Time of mid-transit | 2457143.79263 ± 0.00402 | HJD or BJD |
| Orbital period | 6.8942560 ± 0.0007040 | days |
| Reference for orbital ephemeris | 2018AJ....156..277L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5608 ± 91 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.23 ± 0.06 | dex |
| Stellar mass | 0.990 ± 0.040 | Msun |
| Stellar radius | 1.070 ± 0.020 | Rsun |
| Stellar logarithmic surface gravity | 4.380 ± 0.030 | c.g.s. |
| Stellar mean density | 1.872 +1.144 −0.811 ( 2.6 +1.6 −1.1 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.07060 ± 0.00100 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.253 ± 0.018 ( 2.84 ± 0.20 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 962 ± 20 | K |
| Reference of detailed study | 2018AJ....156..277L |
K2-181b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)