TEPCat: HAT-P-27


 

This page summarises the information held within TEPCat for the transiting planetary system HAT-P-27. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2011ApJ...734..109B  
Date of discovery paper 2011 / 1 / 18 y / m / d
Right ascension 14 51 04.19 h m s
Declination +05 56 50.5 d m s
V-band apparent magnitude 12.16 mag
K-band apparent magnitude 10.11 mag
Transit duration 0.0705
( 1.692 )
day
hour
Transit depth 1.5 %
Time of mid-transit   2455186.01991 ± 0.00044     HJD or BJD
Orbital period 3.0395803 ± 0.0000015 days
Reference for orbital ephemeris   2015MNRAS.451.4060S  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5316 ± 55 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.30 ± 0.03 dex
Stellar mass 0.945 ± 0.035   Msun
Stellar radius 0.898 +0.054 −0.039 Rsun
Stellar logarithmic surface gravity 4.51 ± 0.04 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.078 ± 0.047  
Orbital semimajor axis   0.0403 ± 0.0005  AU
Planetary mass 0.660 ± 0.033
( 209 ± 10 )
Mjup
Mearth
Planetary radius 1.038 +0.077 −0.058
( 11.63 + 0.86 − 0.65 )
Rjup
Rearth
Planetary surface gravity 15.1 ± 1.7
3.18 ± 0.05
m/s2
log(cgs)
Planetary mean density 0.59 ± 0.10
( 0.78 ± 0.13 )
ρjup
g cm-3
Planetary equilibrium temperature 1207 ± 41 K
Reference of detailed study 2011ApJ...734..109B  

 

Entries in the catalogue of Rossiter-McLaughlin measurements:
 
Reference λ (degrees)
Brown et al. (2012)   24.2   + 76.0   - 44.5  

 

 

HAT-P-27 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)