This page summarises the information held within TEPCat for the transiting system K2-220b. 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 | 00 51 04.76 | h m s |
| Declination | +09 31 00.5 | d m s |
| Right ascension (decimal) | 12.76983 | degrees |
| Declination (decimal) | 9.51681 | degrees |
| V-band apparent magnitude | 11.59 | mag |
| K-band apparent magnitude | 10.16 | mag |
| Transit duration | 0.1872 ( 4.493 ) | day hour |
| Transit depth | 0.05 | % |
| Time of mid-transit | 2457401.27048 ± 0.00338 | HJD or BJD |
| Orbital period | 13.6832560 ± 0.0010500 | days |
| Reference for orbital ephemeris | 2018AJ....156..277L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5660 ± 92 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.04 ± 0.05 | dex |
| Stellar mass | 0.960 ± 0.040 | Msun |
| Stellar radius | 1.020 ± 0.020 | Rsun |
| Stellar logarithmic surface gravity | 4.400 ± 0.030 | c.g.s. |
| Stellar mean density | 2.171 +0.951 −0.735 ( 3.1 +1.3 −1.0 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.11040 +0.00140 −0.00150 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.213 ± 0.011 ( 2.39 ± 0.12 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 758 ± 15 | K |
| Reference of detailed study | 2018AJ....156..277L |
K2-220b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)