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 |
| Right ascension | 16 15 50.36 | h m s |
| Declination | +10 01 57.3 | d m s |
| V-band apparent magnitude | 9.45 | mag |
| K-band apparent magnitude | 8.00 | mag |
| Transit duration | 0.1942 ( 4.661 ) | day hour |
| Transit depth | 0.8 | % |
| Time of mid-transit | 2455335.92050 ± 0.00074 | HJD or BJD |
| Orbital period | 6.871815 ± 0.000044 | days |
| Reference for orbital ephemeris | 2011A+A...525A..54B |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6150 ± 80 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.12 ± 0.07 | dex |
| Stellar mass | 1.203 ± 0.036 | Msun |
| Stellar radius | 1.331 +0.030 −0.025 | Rsun |
| Stellar logarithmic surface gravity | 4.250 +0.012 −0.013 | c.g.s. |
| Stellar mean density | 0.509 ± 0.023 ( 0.718 ± 0.032 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0314 +0.0046 −0.0041 | |
| Orbital semimajor axis | 0.07522 +0.00074 −0.00075 | AU |
| Planetary mass | 2.691 ± 0.058 ( 855 ± 18 ) | Mjup Mearth |
| Planetary radius | 1.094 +0.029 −0.028 ( 12.26 + 0.33 − 0.31 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 2.06 ± 0.14 ( 2.73 ± 0.19 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1292 ± 33 | K |
| Reference of detailed study | 2011A+A...525A..54B |
| Reference | λ (degrees) |
|---|---|
| Simpson et al. (2011) | 15 + 33 - 43 |
| Brown et al. (2012) | 7.5 + 4.7 - 6.1 |
WASP-38 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.
Page generated on 2017/08/07 John Southworth (Keele University, UK)