TEPCat: HAT-P-55


 

This page summarises the information held within TEPCat for the transiting planetary system HAT-P-55. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2015PASP..127..851J  
Date of discovery paper 2015 / 6 / 12 y / m / d
Right ascension 17 37 05.52 h m s
Declination +25 43 52.3 d m s
V-band apparent magnitude 13.21 mag
K-band apparent magnitude 11.63 mag
Transit duration 0.1223
( 2.935 )
day
hour
Transit depth 1.8 %
Time of mid-transit   2456730.83468 ± 0.00027     HJD or BJD
Orbital period 3.5852467 ± 0.0000064 days
Reference for orbital ephemeris   2015PASP..127..851J  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5808 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.030 ± 0.080 dex
Stellar mass 1.013 ± 0.037   Msun
Stellar radius 1.011 ± 0.036 Rsun
Stellar logarithmic surface gravity 4.434 ± 0.032 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0 +0.139 −0.0  
Orbital semimajor axis   0.04604 ± 0.00056  AU
Planetary mass 0.582 ± 0.056
( 185 ± 17 )
Mjup
Mearth
Planetary radius 1.182 ± 0.055
( 13.25 ± 0.62 )
Rjup
Rearth
Planetary surface gravity 10.3 ± 1.4
3.01 ± 0.06
m/s2
log(cgs)
Planetary mean density 0.328 ± 0.058
( 0.435 ± 0.077 )
ρjup
g cm-3
Planetary equilibrium temperature 1313 ± 26 K
Reference of detailed study 2015PASP..127..851J  

 

HAT-P-55 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

HAT-P-55 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)