This page summarises the information held within TEPCat for the transiting planetary system HAT-P-38. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2012PASJ...64...97S | |
| Date of discovery paper | 2012 / 1 / 25 | y / m / d |
| Data/telescope used for discovery | HAT | |
| Right ascension | 02 21 31.97 | h m s |
| Declination | +32 14 46.1 | d m s |
| Right ascension (decimal) | 35.38321 | degrees |
| Declination (decimal) | 32.24614 | degrees |
| V-band apparent magnitude | 12.56 | mag |
| K-band apparent magnitude | 10.50 | mag |
| Transit duration | 0.1267 ( 3.041 ) | day hour |
| Transit depth | 1.2 | % |
| Time of mid-transit | 2457491.87585 ± 0.00009 | HJD or BJD |
| Orbital period | 4.6403293 ± 0.0000017 | days |
| Reference for orbital ephemeris | 2019A+A...622A..81M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5330 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.06 ± 0.10 | dex |
| Stellar mass | 0.886 ± 0.044 | Msun |
| Stellar radius | 0.923 +0.096 −0.067 | Rsun |
| Stellar logarithmic surface gravity | 4.45 ± 0.08 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.067 ± 0.047 | |
| Orbital semimajor axis | 0.0523 ± 0.0009 | AU |
| Planetary mass | 0.267 ± 0.020 ( 84.9 ± 6.4 ) | Mjup Mearth |
| Planetary radius | 0.825 +0.092 −0.063 ( 9.25 +1.03 −0.71 ) | Rjup Rearth |
| Planetary surface gravity | 9.8 ± 1.8 2.99 ± 0.07 | m/s2 log(cgs) |
| Planetary mean density | 0.44 ± 0.12 ( 0.58 ± 0.16 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1082 ± 55 | K |
| Reference of detailed study | 2012PASJ...64...97S |
HAT-P-38 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/12 John Southworth (Keele University, UK)