This page summarises the information held within TEPCat for the transiting system K2-226b. 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 14 34.97 | h m s |
| Declination | −09 33 45.5 | d m s |
| Right ascension (decimal) | 183.64571 | degrees |
| Declination (decimal) | -9.56264 | degrees |
| V-band apparent magnitude | 11.85 | mag |
| K-band apparent magnitude | 10.22 | mag |
| Transit duration | 0.1067 ( 2.561 ) | day hour |
| Transit depth | 0.02 | % |
| Time of mid-transit | 2457584.02470 ± 0.00620 | HJD or BJD |
| Orbital period | 3.2710800 ± 0.0004900 | days |
| Reference for orbital ephemeris | 2018AJ....156...78L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5424 +48 −46 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.03 ± 0.07 | dex |
| Stellar mass | 0.880 ± 0.030 | Msun |
| Stellar radius | 0.910 ± 0.020 | Rsun |
| Stellar logarithmic surface gravity | 4.470 ± 0.030 | c.g.s. |
| Stellar mean density | 1.100 +0.500 −0.700 ( 1.55 +0.71 −0.99 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.04130 ± 0.00050 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.137 +0.012 −0.008 ( 1.536 +0.135 −0.090 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1120 ± 16 | K |
| Reference of detailed study | 2018AJ....156...78L |
K2-226b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)