This page summarises the information held within TEPCat for the transiting planetary system HD 118203. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2020AJ....159..243P | |
| Date of discovery paper | 2019 / 11 / 13 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 13 34 02.39 | h m s |
| Declination | +53 43 41.5 | d m s |
| Right ascension (decimal) | 203.50996 | degrees |
| Declination (decimal) | 53.72819 | degrees |
| V-band apparent magnitude | 8.14 | mag |
| K-band apparent magnitude | 6.54 | mag |
| Transit duration | 0.2351 ( 5.642 ) | day hour |
| Transit depth | 0.36 | % |
| Time of mid-transit | 2458712.66178 ± 0.00020 | HJD or BJD |
| Orbital period | 6.1349779 ± 0.0000002 | days |
| Reference for orbital ephemeris | arXiv:2407.21377 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5788 ± 51 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.22 ± 0.02 | dex |
| Stellar mass | 1.220 ± 0.021 | Msun |
| Stellar radius | 2.03 ± 0.16 | Rsun |
| Stellar logarithmic surface gravity | 3.99 ± 0.12 | c.g.s. |
| Stellar mean density | 0.155 +0.004 −0.010 ( 0.2187 +0.0056 −0.0141 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.3136 ± 0.0075 | |
| Orbital semimajor axis | 0.0701 ± 0.0004 | AU |
| Planetary mass | 2.182 ± 0.033 ( 693 ± 10 ) | Mjup Mearth |
| Planetary radius | 1.140 ± 0.029 ( 12.78 ± 0.33 ) | Rjup Rearth |
| Planetary surface gravity | 41.9 +0.5 −0.8 3.622 +0.005 −0.008 | m/s2 log(cgs) |
| Planetary mean density | 1.35 +0.16 −0.14 ( 1.79 +0.21 −0.19 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1371 +16 −17 | K |
| Reference of detailed study | arXiv:2407.21377 |
| Reference | λ (degrees) |
|---|---|
| Zhang et al. (2024) | −12 + 8 - 10 |
Page generated on 2025/02/12 John Southworth (Keele University, UK)