TEPCat: HAT-P-38


 

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.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2012PASJ...64...97S  
Date of discovery paper 2012 / 1 / 25 y / m / d
Right ascension 02 21 31.97 h m s
Declination +32 14 46.1 d m s
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   2455863.11957 ± 0.00035     HJD or BJD
Orbital period 4.640382 ± 0.000032 days
Reference for orbital ephemeris   2012PASJ...64...97S  

 

Physical properties from the most recent detailed study:
 
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 Rossiter-McLaughlin measurements.

 

HAT-P-38 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/11           John Southworth   (Keele University, UK)