This page summarises the information held within TEPCat for the transiting system K2-273b. 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 39 06.49 | h m s |
| Declination | +19 00 36.0 | d m s |
| Right ascension (decimal) | 129.77704 | degrees |
| Declination (decimal) | 19.01000 | degrees |
| V-band apparent magnitude | 12.93 | mag |
| K-band apparent magnitude | 11.30 | mag |
| Transit duration | 0.1496 ( 3.590 ) | day hour |
| Transit depth | 0.23 | % |
| Time of mid-transit | 2457149.10117 ± 0.00377 | HJD or BJD |
| Orbital period | 11.7163320 ± 0.0011720 | days |
| Reference for orbital ephemeris | 2018AJ....156..277L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5200 ± 67 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.20 ± 0.06 | dex |
| Stellar mass | 0.900 ± 0.030 | Msun |
| Stellar radius | 0.840 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.550 ± 0.020 | c.g.s. |
| Stellar mean density | 0.026 +0.013 −0.010 ( 0.037 +0.018 −0.014 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.09740 ± 0.00110 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.394 ± 0.114 ( 4.4 ± 1.3 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 672 ± 11 | K |
| Reference of detailed study | 2018AJ....156..277L |
K2-273b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)