This page summarises the information held within TEPCat for the transiting planetary system WASP-89. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2015AJ....150...18H | |
| Date of discovery paper | 2014 / 10 / 24 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 20 55 35.98 | h m s |
| Declination | −18 58 16.1 | d m s |
| Right ascension (decimal) | 313.89992 | degrees |
| Declination (decimal) | -18.97114 | degrees |
| V-band apparent magnitude | 13.09 | mag |
| K-band apparent magnitude | 11.00 | mag |
| Transit duration | 0.1025 ( 2.460 ) | day hour |
| Transit depth | 1.9 | % |
| Time of mid-transit | 2456207.02114 ± 0.00012 | HJD or BJD |
| Orbital period | 3.3564227 ± 0.0000025 | days |
| Reference for orbital ephemeris | 2015AJ....150...18H |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4955 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.15 ± 0.14 | dex |
| Stellar mass | 0.92 ± 0.08 | Msun |
| Stellar radius | 0.88 ± 0.03 | Rsun |
| Stellar logarithmic surface gravity | 4.515 ± 0.018 | c.g.s. |
| Stellar mean density | 1.36 ± 0.07 ( 1.919 ± 0.099 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.193 ± 0.009 | |
| Orbital semimajor axis | 0.0427 ± 0.0012 | AU |
| Planetary mass | 5.9 ± 0.4 ( 18756 ± 1272 ) | Mjup Mearth |
| Planetary radius | 1.04 ± 0.04 ( 11.66 ± 0.45 ) | Rjup Rearth |
| Planetary surface gravity | 125.9 ± 5.8 4.10 ± 0.02 | m/s2 log(cgs) |
| Planetary mean density | 5.27 ± 0.33 ( 6.99 ± 0.44 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1120 ± 20 | K |
| Reference of detailed study | 2015AJ....150...18H |
WASP-89 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/11/22 John Southworth (Keele University, UK)