This page summarises the information held within TEPCat for the transiting system Kepler-38. Please see here for descriptions of the quantities given below.
This object consists of an eclipsing binary star system which is itself eclipsed by one or more transiting planets. The binarity of the central star causes problems for structured databases. The stellar data below refer specifically to the primary star, and the planetary data to the transiting planet. For further information on the secondary star or the system as a whole please consult the publication(s) referenced below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2012ApJ...758...87O | |
| Date of discovery paper | 2012 / 6 / 21 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 07 19.29 | h m s |
| Declination | +42 16 45.1 | d m s |
| Right ascension (decimal) | 286.83038 | degrees |
| Declination (decimal) | 42.27919 | degrees |
| V-band apparent magnitude | 14.08 | mag |
| K-band apparent magnitude | 12.34 | mag |
| Transit duration | 0.5 ( 12. ) | day hour |
| Transit depth | 0.05 | % |
| Time of mid-transit | 2454932.112 ± 0.033 | HJD or BJD |
| Orbital period | 105.595 ± 0.045 | days |
| Reference for orbital ephemeris | 2012ApJ...758...87O |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5623 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.11 ± 0.08 | dex |
| Stellar mass | 0.949 ± 0.059 | Msun |
| Stellar radius | 1.757 ± 0.034 | Rsun |
| Stellar logarithmic surface gravity | 3.926 ± 0.011 | c.g.s. |
| Stellar mean density | 0.1240 ± 0.0010 ( 0.1750 ± 0.0014 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.032 −0.0 | |
| Orbital semimajor axis | 0.4644 ± 0.0087 | AU |
| Planetary mass | 0.0 +0.384 −0.0 ( 0 +122 −0 ) | Mjup Mearth |
| Planetary radius | 0.388 ± 0.010 ( 4.35 ± 0.11 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.0 +6.6 −0.0 ( 0.0 +8.8 −0.0 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 475 | K |
| Reference of detailed study | 2012ApJ...758...87O |
Kepler-38 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/01/01 John Southworth (Keele University, UK)