TEPCat: CoRoT-21


 

This page summarises the information held within TEPCat for the transiting planetary system CoRoT-21. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2012A+A...545A...6P  
Date of discovery paper 2012 / 8 / 31 y / m / d
Right ascension 06 44 12.59 h m s
Declination −00 17 56.9 d m s
V-band apparent magnitude 16.00 mag
K-band apparent magnitude 13.81 mag
Transit duration 0.198
( 4.75 )
day
hour
Transit depth 0.5 %
Time of mid-transit   2454399.0282 ± 0.0009     HJD or BJD
Orbital period 2.72474 ± 0.00014 days
Reference for orbital ephemeris   2012A+A...545A...6P  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6200 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.0 ± 0.1 dex
Stellar mass 1.39 ± 0.09   Msun
Stellar radius 1.95 ± 0.21 Rsun
Stellar logarithmic surface gravity 3.7 ± 0.1 c.g.s.
Stellar mean density 0.181 ± 0.060
( 0.255 ± 0.085 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0417 ± 0.0011  AU
Planetary mass 2.26 ± 0.33
( 718 ± 104 )
Mjup
Mearth
Planetary radius 1.27 ± 0.14
( 14.2 ± 1.6 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 1.03 ± 0.36
( 1.37 ± 0.48 )
ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2012A+A...545A...6P  

 

CoRoT-21 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

CoRoT-21 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)