This page summarises the information held within TEPCat for the transiting planetary system WASP-123. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2016PASP..128f4401T | |
| Date of discovery paper | 2015 / 9 / 9 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 19 17 55.05 | h m s |
| Declination | −32 51 35.9 | d m s |
| Right ascension (decimal) | 289.47938 | degrees |
| Declination (decimal) | -32.85997 | degrees |
| V-band apparent magnitude | 11.03 | mag |
| K-band apparent magnitude | 9.36 | mag |
| Transit duration | 0.1289 ( 3.094 ) | day hour |
| Transit depth | 1.1 | % |
| Time of mid-transit | 2456845.17082 ± 0.00039 | HJD or BJD |
| Orbital period | 2.9776412 ± 0.0000023 | days |
| Reference for orbital ephemeris | 2016PASP..128f4401T |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5740 ± 130 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.18 ± 0.08 | dex |
| Stellar mass | 1.166 ± 0.061 | Msun |
| Stellar radius | 1.285 ± 0.051 | Rsun |
| Stellar logarithmic surface gravity | 4.286 ± 0.032 | c.g.s. |
| Stellar mean density | 0.548 ± 0.059 ( 0.773 ± 0.083 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.12 −0.0 | |
| Orbital semimajor axis | 0.04263 ± 0.00074 | AU |
| Planetary mass | 0.899 ± 0.036 ( 285 ± 11 ) | Mjup Mearth |
| Planetary radius | 1.35 ± 0.05 ( 15.13 ± 0.56 ) | Rjup Rearth |
| Planetary surface gravity | 11.6 ± 0.7 3.06 ± 0.03 | m/s2 log(cgs) |
| Planetary mean density | 0.37 ± 0.05 ( 0.491 ± 0.066 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1500 ± 40 | K |
| Reference of detailed study | 2022AN....34324012A |
WASP-123 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)