TEPCat: HAT-P-54


 

This page summarises the information held within TEPCat for the transiting planetary system HAT-P-54. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2015AJ....149..149B  
Date of discovery paper 2014 / 4 / 18 y / m / d
Right ascension 06 39 35.53 h m s
Declination +25 28 57.1 d m s
V-band apparent magnitude 13.51 mag
K-band apparent magnitude 10.33 mag
Transit duration 0.07488
( 1.7971 )
day
hour
Transit depth 2.7 %
Time of mid-transit   2456299.30370 ± 0.00024     HJD or BJD
Orbital period 3.799847 ± 0.000014 days
Reference for orbital ephemeris   2015AJ....149..149B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4390 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.127 ± 0.080 dex
Stellar mass 0.645 ± 0.020   Msun
Stellar radius 0.617 ± 0.013 Rsun
Stellar logarithmic surface gravity 4.667 ± 0.012 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0 +0.074 −0.0  
Orbital semimajor axis   0.04117 ± 0.00043  AU
Planetary mass 0.760 ± 0.032
( 241 ± 10 )
Mjup
Mearth
Planetary radius 0.944 ± 0.028
( 10.58 ± 0.31 )
Rjup
Rearth
Planetary surface gravity 21.1 ± 1.3
3.32 ± 0.03
m/s2
log(cgs)
Planetary mean density 0.842 ± 0.074
( 1.117 ± 0.098 )
ρjup
g cm-3
Planetary equilibrium temperature 818 ± 12 K
Reference of detailed study 2015AJ....149..149B  

 

HAT-P-54 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

HAT-P-54 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/15           John Southworth   (Keele University, UK)