This page summarises the information held within TEPCat for the transiting planetary system WASP-28. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2015A+A...575A..61A | |
| Date of discovery paper | 2014 / 2 / 7 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 23 34 27.87 | h m s |
| Declination | −01 34 48.1 | d m s |
| Right ascension (decimal) | 353.61613 | degrees |
| Declination (decimal) | -1.58003 | degrees |
| V-band apparent magnitude | 12.15 | mag |
| K-band apparent magnitude | 10.73 | mag |
| Transit duration | 0.13495 ( 3.2388 ) | day hour |
| Transit depth | 1.1 | % |
| Time of mid-transit | 2457642.502126 ± 0.000014 | HJD or BJD |
| Orbital period | 3.40883495 ± 0.00000015 | days |
| Reference for orbital ephemeris | 2020PASP..132a4401M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6084 ± 45 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.20 ± 0.07 | dex |
| Stellar mass | 0.993 ± 0.067 | Msun |
| Stellar radius | 1.083 ± 0.025 | Rsun |
| Stellar logarithmic surface gravity | 4.370 ± 0.018 | c.g.s. |
| Stellar mean density | 0.7815 ± 0.0068 ( 1.1027 ± 0.0096 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.075 −0.0 | |
| Orbital semimajor axis | 0.0442 ± 0.0010 | AU |
| Planetary mass | 0.889 ± 0.058 ( 282 ± 18 ) | Mjup Mearth |
| Planetary radius | 1.219 ± 0.028 ( 13.66 ± 0.31 ) | Rjup Rearth |
| Planetary surface gravity | 14.09 ± 0.91 3.15 ± 0.03 | m/s2 log(cgs) |
| Planetary mean density | 0.491 ± 0.027 ( 0.651 ± 0.036 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1456 ± 40 | K |
| Reference of detailed study | 2020PASP..132a4401M |
| Reference | λ (degrees) |
|---|---|
| Anderson et al. (2015) | 8 ± 18 |
| Mocnik et al. (2020) | 6 ± 17 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)