This page summarises the information held within TEPCat for the transiting system K2-270b. 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 45 03.98 | h m s |
| Declination | +13 32 59.4 | d m s |
| Right ascension (decimal) | 131.26658 | degrees |
| Declination (decimal) | 13.54983 | degrees |
| V-band apparent magnitude | 13.19 | mag |
| K-band apparent magnitude | 11.37 | mag |
| Transit duration | 0.0712 ( 1.709 ) | day hour |
| Transit depth | 0.03 | % |
| Time of mid-transit | 2457142.41998 ± 0.00446 | HJD or BJD |
| Orbital period | 1.5430690 ± 0.0001890 | days |
| Reference for orbital ephemeris | 2018AJ....156..277L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4877 ± 58 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.26 ± 0.06 | dex |
| Stellar mass | 0.850 ± 0.020 | Msun |
| Stellar radius | 0.770 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.590 ± 0.010 | c.g.s. |
| Stellar mean density | 1.243 +0.833 −0.576 ( 1.75 +1.18 −0.81 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.02470 ± 0.00020 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.123 ± 0.010 ( 1.38 ± 0.11 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1203 ± 17 | K |
| Reference of detailed study | 2018AJ....156..277L |
K2-270b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)