This page summarises the information held within TEPCat for the transiting planetary system WASP-189. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:1809.04897 | |
| Date of discovery paper | 2018 / 9 / 14 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 15 02 44.86 | h m s |
| Declination | −03 01 52.9 | d m s |
| Right ascension (decimal) | 225.68692 | degrees |
| Declination (decimal) | -3.03136 | degrees |
| V-band apparent magnitude | 6.64 | mag |
| K-band apparent magnitude | 6.06 | mag |
| Transit duration | 0.18057 ( 4.3337 ) | day hour |
| Transit depth | 0.6 | % |
| Time of mid-transit | 2456706.4545 ± 0.0018 | HJD or BJD |
| Orbital period | 2.7240330 ± 0.0000042 | days |
| Reference for orbital ephemeris | arXiv:1809.04897 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 8000 ± 80 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.29 ± 0.13 | dex |
| Stellar mass | 2.031 +0.098 −0.096 | Msun |
| Stellar radius | 2.365 ± 0.025 | Rsun |
| Stellar logarithmic surface gravity | 4.046 ± 0.024 | c.g.s. |
| Stellar mean density | 0.1617 +0.0088 −0.0089 ( 0.228 +0.012 −0.013 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.05040 +0.00064 −0.00060 | AU |
| Planetary mass | 1.99 +0.16 −0.14 ( 632 +50 −44 ) | Mjup Mearth |
| Planetary radius | 1.600 +0.017 −0.016 ( 17.93 + 0.19 − 0.18 ) | Rjup Rearth |
| Planetary surface gravity | 18.8 +2.1 −1.8 3.27 +0.05 −0.04 | m/s2 log(cgs) |
| Planetary mean density | 0.469 +0.058 −0.028 ( 0.622 +0.077 −0.037 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 2641 ± 34 | K |
| Reference of detailed study | 2022A+A...659A..74D |
| Reference | λ (degrees) |
|---|---|
| Anderson et al. (2018) | 89.3 ± 1.4 |
| Lendl et al. (2020) | 86.4 + 2.9 - 4.4 |
| Deline et al. (2022) | 91.7 ± 1.2 |
Page generated on 2023/09/01 John Southworth (Keele University, UK)