TEPCat: TrES-2


 

This page summarises the information held within TEPCat for the transiting planetary system TrES-2. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2006ApJ...651L..61O  
Date of discovery paper 2006 / 8 / 21 y / m / d
Data/telescope used for discovery TrES  
Right ascension 19 07 14.04 h m s
Declination +49 18 59.0 d m s
Right ascension (decimal) 286.80850 degrees
Declination (decimal) 49.31639 degrees
V-band apparent magnitude 11.41 mag
K-band apparent magnitude 9.85 mag
Transit duration 0.07451
( 1.7882 )
day
hour
Transit depth 1.5 %
Time of mid-transit   2453957.635474 ± 0.000020     HJD or BJD
Orbital period 2.47061340 ± 0.00000042 days
Reference for orbital ephemeris   2022AJ....164..220H  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5850 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.15 ± 0.10 dex
Stellar mass 0.991 ± 0.057   Msun
Stellar radius 0.964 ± 0.018 Rsun
Stellar logarithmic surface gravity 4.466 ± 0.009 c.g.s.
Stellar mean density 1.105 ± 0.011
( 1.559 ± 0.016 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.03567 ± 0.00067  AU
Planetary mass 1.206 ± 0.049
( 383 ± 15 )
Mjup
Mearth
Planetary radius 1.193 ± 0.023
( 13.37 ± 0.26 )
Rjup
Rearth
Planetary surface gravity 21.02 ± 0.31
3.323 ± 0.006
m/s2
log(cgs)
Planetary mean density 0.665 ± 0.015
( 0.882 ± 0.020 )
ρjup
g cm-3
Planetary equilibrium temperature 1466 ± 12 K
Reference of detailed study 2011MNRAS.417.2166S  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Winn et al. (2008)   −9   ±   12  

 

 


Page generated on 2024/04/19           John Southworth   (Keele University, UK)