This page summarises the information held within TEPCat for the transiting planetary system WASP-38. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2011A+A...525A..54B | |
| Date of discovery paper | 2010 / 10 / 6 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 16 15 50.36 | h m s |
| Declination | +10 01 57.3 | d m s |
| Right ascension (decimal) | 243.95983 | degrees |
| Declination (decimal) | 10.03258 | degrees |
| V-band apparent magnitude | 9.45 | mag |
| K-band apparent magnitude | 8.00 | mag |
| Transit duration | 0.2003 ( 4.807 ) | day hour |
| Transit depth | 0.6 | % |
| Time of mid-transit | 2459005.51241 ± 0.00008 | HJD or BJD |
| Orbital period | 6.87187 ± 0.00003 | days |
| Reference for orbital ephemeris | 2021MNRAS.506.3810B |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6436 ± 60 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.06 ± 0.04 | dex |
| Stellar mass | 1.28 ± 0.05 | Msun |
| Stellar radius | 1.35 ± 0.03 | Rsun |
| Stellar logarithmic surface gravity | 4.80 ± 0.07 | c.g.s. |
| Stellar mean density | 0.37 ± 0.03 ( 0.522 ± 0.042 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0314 +0.0046 −0.0041 | |
| Orbital semimajor axis | 0.07522 +0.00074 −0.00075 | AU |
| Planetary mass | 2.70 ± 0.10 ( 858 ± 31 ) | Mjup Mearth |
| Planetary radius | 1.07 ± 0.02 ( 11.99 ± 0.22 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 1.7 ± 0.08 ( 2.26 ± 0.11 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1292 ± 33 | K |
| Reference of detailed study | 2021MNRAS.506.3810B |
| Reference | λ (degrees) |
|---|---|
| Simpson et al. (2011) | 15 + 33 - 43 |
| Brown et al. (2012) | 7.5 + 4.7 - 6.1 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)