This page summarises the information held within TEPCat for the transiting planetary system WASP-171. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019MNRAS.489.2478N | |
| Date of discovery paper | 2019 / 4 / 24 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 11 27 22.86 | h m s |
| Declination | −44 05 19.3 | d m s |
| Right ascension (decimal) | 171.84525 | degrees |
| Declination (decimal) | -44.08869 | degrees |
| V-band apparent magnitude | 13.05 | mag |
| K-band apparent magnitude | 11.07 | mag |
| Transit duration | 0.1908 ( 4.579 ) | day hour |
| Transit depth | 0.4 | % |
| Time of mid-transit | 2458059.8295 ± 0.0011 | HJD or BJD |
| Orbital period | 3.8186244 ± 0.0000038 | days |
| Reference for orbital ephemeris | 2019MNRAS.489.2478N |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5965 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.04 ± 0.07 | dex |
| Stellar mass | 1.171 ± 0.058 | Msun |
| Stellar radius | 1.637 +0.091 −0.046 | Rsun |
| Stellar logarithmic surface gravity | 4.080 +0.020 −0.049 | c.g.s. |
| Stellar mean density | 0.270 +0.017 −0.042 ( 0.381 +0.024 −0.059 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.16 −0.0 | |
| Orbital semimajor axis | 0.05040 ± 0.00083 | AU |
| Planetary mass | 1.084 ± 0.094 ( 344 ± 29 ) | Mjup Mearth |
| Planetary radius | 0.98 +0.07 −0.04 ( 10.98 + 0.78 − 0.45 ) | Rjup Rearth |
| Planetary surface gravity | 25.4 +3.0 −3.7 3.40 +0.05 −0.07 | m/s2 log(cgs) |
| Planetary mean density | 1.13 +0.17 −0.22 ( 1.50 +0.23 −0.29 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1642 +51 −35 | K |
| Reference of detailed study | 2019MNRAS.489.2478N |
WASP-171 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)