This page summarises the information held within TEPCat for the transiting planetary system WASP-155. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2025AJ....169..334S | |
| Date of discovery paper | 2025 / 4 / 18 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 23 11 55.13 | h m s |
| Declination | +33 02 51.4 | d m s |
| Right ascension (decimal) | 347.97971 | degrees |
| Declination (decimal) | 33.04761 | degrees |
| V-band apparent magnitude | 12.58 | mag |
| K-band apparent magnitude | 10.86 | mag |
| Transit duration | 0.13 ( 3.1 ) | day hour |
| Transit depth | 1.0 | % |
| Time of mid-transit | 2459852.08494 ± 0.00041 | HJD or BJD |
| Orbital period | 3.110413 ± 0.000001 | days |
| Reference for orbital ephemeris | 2025AJ....169..334S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5660 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.0 ± 0.3 | dex |
| Stellar mass | 1.09 ± 0.07 | Msun |
| Stellar radius | 1.240 ± 0.060 | Rsun |
| Stellar logarithmic surface gravity | 4.3 ± 0.15 | c.g.s. |
| Stellar mean density | 0.803 +0.014 −0.011 ( 1.133 +0.020 −0.016 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.043 ± 0.002 | AU |
| Planetary mass | 0.871 ± 0.18 ( 276 ± 57 ) | Mjup Mearth |
| Planetary radius | 1.20 ± 0.06 ( 13.45 ± 0.67 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.47 ± 0.13 ( 0.62 ± 0.17 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1468 ± 76 | K |
| Reference of detailed study | 2025AJ....169..334S |
WASP-155 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)