This page summarises the information held within TEPCat for the transiting planetary system WASP-57. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2013A+A...551A..73F | |
| Date of discovery paper | 2012 / 10 / 9 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 14 55 16.84 | h m s |
| Declination | −02 03 27.5 | d m s |
| Right ascension (decimal) | 223.82017 | degrees |
| Declination (decimal) | -2.05764 | degrees |
| V-band apparent magnitude | 13.04 | mag |
| K-band apparent magnitude | 11.24 | mag |
| Transit duration | 0.0960 ( 2.304 ) | day hour |
| Transit depth | 1.8 | % |
| Time of mid-transit | 2456058.54910 ± 0.00016 | HJD or BJD |
| Orbital period | 2.83891856 ± 0.00000081 | days |
| Reference for orbital ephemeris | 2015MNRAS.454.3094S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5600 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.25 ± 0.10 | dex |
| Stellar mass | 0.886 ± 0.067 | Msun |
| Stellar radius | 0.927 ± 0.033 | Rsun |
| Stellar logarithmic surface gravity | 4.452 ± 0.025 | c.g.s. |
| Stellar mean density | 1.113 ± 0.085 ( 1.57 ± 0.12 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.03769 ± 0.00097 | AU |
| Planetary mass | 0.644 ± 0.062 ( 204 ± 19 ) | Mjup Mearth |
| Planetary radius | 1.050 ± 0.053 ( 11.77 ± 0.59 ) | Rjup Rearth |
| Planetary surface gravity | 14.5 ± 1.5 3.16 ± 0.04 | m/s2 log(cgs) |
| Planetary mean density | 0.521 ± 0.072 ( 0.691 ± 0.096 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1338 ± 29 | K |
| Reference of detailed study | 2015MNRAS.454.3094S |
WASP-57 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/10 John Southworth (Keele University, UK)