This page summarises the information held within TEPCat for the transiting planetary system WASP-154. 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 | 21 50 52.60 | h m s |
| Declination | −08 38 09.4 | d m s |
| Right ascension (decimal) | 327.71917 | degrees |
| Declination (decimal) | -8.63594 | degrees |
| V-band apparent magnitude | 13.10 | mag |
| K-band apparent magnitude | 10.77 | mag |
| Transit duration | 0.11 ( 2.6 ) | day hour |
| Transit depth | 1.4 | % |
| Time of mid-transit | 2459465.89195 ± 0.00028 | HJD or BJD |
| Orbital period | 3.811678 ± 0.000001 | days |
| Reference for orbital ephemeris | 2025AJ....169..334S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4774 ± 133 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.2 ± 0.1 | dex |
| Stellar mass | 0.80 ± 0.05 | Msun |
| Stellar radius | 0.823 ± 0.047 | Rsun |
| Stellar logarithmic surface gravity | 4.47 ± 0.08 | c.g.s. |
| Stellar mean density | 2.012 +0.067 −0.066 ( 2.839 +0.095 −0.093 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.044 ± 0.003 | AU |
| Planetary mass | 0.626 ± 0.13 ( 198 ± 41 ) | Mjup Mearth |
| Planetary radius | 0.96 ± 0.06 ( 10.76 ± 0.67 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.66 ± 0.19 ( 0.88 ± 0.25 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 994 ± 63 | K |
| Reference of detailed study | 2025AJ....169..334S |
WASP-154 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)