This page summarises the information held within TEPCat for the transiting planetary system WASP-91. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2017A+A...604A.110A | |
| Date of discovery paper | 2017 / 1 / 16 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 23 51 22.89 | h m s |
| Declination | −70 09 10.2 | d m s |
| Right ascension (decimal) | 357.84538 | degrees |
| Declination (decimal) | -70.15283 | degrees |
| V-band apparent magnitude | 11.99 | mag |
| K-band apparent magnitude | 9.71 | mag |
| Transit duration | 0.0976 ( 2.342 ) | day hour |
| Transit depth | 1.7 | % |
| Time of mid-transit | 2456297.71905 ± 0.00019 | HJD or BJD |
| Orbital period | 2.79857960 ± 0.00000024 | days |
| Reference for orbital ephemeris | 2022AcA....72....1M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4920 ± 80 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.19 ± 0.13 | dex |
| Stellar mass | 0.84 ± 0.07 | Msun |
| Stellar radius | 0.86 ± 0.03 | Rsun |
| Stellar logarithmic surface gravity | 4.49 ± 0.03 | c.g.s. |
| Stellar mean density | 1.3 ± 0.1 ( 1.83 ± 0.14 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.07 −0.0 | |
| Orbital semimajor axis | 0.037 ± 0.001 | AU |
| Planetary mass | 1.34 ± 0.08 ( 425 ± 25 ) | Mjup Mearth |
| Planetary radius | 1.03 ± 0.04 ( 11.55 ± 0.45 ) | Rjup Rearth |
| Planetary surface gravity | 28.8 +2.1 −1.9 3.46 +0.03 −0.03 | m/s2 log(cgs) |
| Planetary mean density | 1.2 ± 0.1 ( 1.59 ± 0.13 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1160 ± 30 | K |
| Reference of detailed study | 2017A+A...604A.110A |
WASP-91 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)