TEPCat: HAT-P-28


 

This page summarises the information held within TEPCat for the transiting planetary system HAT-P-28. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2011ApJ...733..116B  
Date of discovery paper 2011 / 3 / 10 y / m / d
Right ascension 00 52 00.18 h m s
Declination +34 43 42.3 d m s
V-band apparent magnitude 13.03 mag
K-band apparent magnitude 11.10 mag
Transit duration 0.1341
( 3.218 )
day
hour
Transit depth 1.5 %
Time of mid-transit   2455417.59832 ± 0.00053     HJD or BJD
Orbital period 3.257215 ± 0.000007 days
Reference for orbital ephemeris   2011ApJ...733..116B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5680 ± 90 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.12 ± 0.08 dex
Stellar mass 1.025 ± 0.047   Msun
Stellar radius 1.103 +0.091 −0.069 Rsun
Stellar logarithmic surface gravity 4.36 ± 0.06 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.051 ± 0.033  
Orbital semimajor axis   0.0434 ± 0.0007  AU
Planetary mass 0.626 ± 0.037
( 198 ± 11 )
Mjup
Mearth
Planetary radius 1.212 +0.113 −0.082
( 13.59 + 1.27 − 0.92 )
Rjup
Rearth
Planetary surface gravity 10.5 ± 1.5
3.02 ± 0.06
m/s2
log(cgs)
Planetary mean density 0.35 ± 0.07
( 0.464 ± 0.093 )
ρjup
g cm-3
Planetary equilibrium temperature 1384 ± 52 K
Reference of detailed study 2011ApJ...733..116B  

 

HAT-P-28 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

HAT-P-28 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)