This page summarises the information held within TEPCat for the transiting planetary system WASP-173. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019MNRAS.482.1379H | |
| Date of discovery paper | 2018 / 3 / 7 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 23 36 40.32 | h m s |
| Declination | −34 36 40.4 | d m s |
| Right ascension (decimal) | 354.16800 | degrees |
| Declination (decimal) | -34.61122 | degrees |
| V-band apparent magnitude | 11.15 | mag |
| K-band apparent magnitude | 10.00 | mag |
| Transit duration | 0.0957 ( 2.297 ) | day hour |
| Transit depth | 1.3 | % |
| Time of mid-transit | 2457288.85945 ± 0.00018 | HJD or BJD |
| Orbital period | 1.38665310 ± 0.00000013 | days |
| Reference for orbital ephemeris | 2024A+A...692A..35M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5700 ± 150 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.16 ± 0.14 | dex |
| Stellar mass | 1.05 ± 0.08 | Msun |
| Stellar radius | 1.11 ± 0.05 | Rsun |
| Stellar logarithmic surface gravity | 4.37 ± 0.03 | c.g.s. |
| Stellar mean density | 0.76 ± 0.08 ( 1.07 ± 0.11 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.032 −0.0 | |
| Orbital semimajor axis | 0.0248 ± 0.0006 | AU |
| Planetary mass | 3.69 ± 0.18 ( 1173 ± 57 ) | Mjup Mearth |
| Planetary radius | 1.20 ± 0.06 ( 13.45 ± 0.67 ) | Rjup Rearth |
| Planetary surface gravity | 48.9 +5.7 −5.2 3.69 +0.05 −0.05 | m/s2 log(cgs) |
| Planetary mean density | 2.14 ± 0.28 ( 2.84 ± 0.37 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1880 ± 55 | K |
| Reference of detailed study | 2019MNRAS.482.1379H |
| Reference | λ (degrees) |
|---|---|
| Zak et al. (2025) | 9 ± 5 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)