This page summarises the information held within TEPCat for the transiting system K2-166b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018AJ....156...78L | |
| Date of discovery paper | 2018 / 7 / 2 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 12 20 45.18 | h m s |
| Declination | +02 16 56.7 | d m s |
| Right ascension (decimal) | 185.18825 | degrees |
| Declination (decimal) | 2.28242 | degrees |
| V-band apparent magnitude | 11.87 | mag |
| K-band apparent magnitude | 10.64 | mag |
| Transit duration | 0.2369 ( 5.686 ) | day hour |
| Transit depth | 0.02 | % |
| Time of mid-transit | 2457586.76350 ± 0.01650 | HJD or BJD |
| Orbital period | 8.5269500 ± 0.0036200 | days |
| Reference for orbital ephemeris | 2018AJ....156...78L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5960 +52 −53 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.09 ± 0.06 | dex |
| Stellar mass | 1.160 +0.050 −0.030 | Msun |
| Stellar radius | 1.610 ± 0.040 | Rsun |
| Stellar logarithmic surface gravity | 4.090 ± 0.020 | c.g.s. |
| Stellar mean density | 0.300 ± 0.100 ( 0.42 ± 0.14 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.08580 +0.00100 −0.00090 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.195 +0.018 −0.017 ( 2.19 +0.20 −0.19 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1140 +17 −18 | K |
| Reference of detailed study | 2018AJ....156...78L |
K2-166b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)