TEPCat: CoRoT-18


 

This page summarises the information held within TEPCat for the transiting planetary system CoRoT-18. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2011A+A...533A.130H  
Date of discovery paper 2011 / 7 / 12 y / m / d
Data/telescope used for discovery CoRoT  
Right ascension 06 32 41.36 h m s
Declination −00 01 53.7 d m s
Right ascension (decimal) 98.17233 degrees
Declination (decimal) -0.03158 degrees
V-band apparent magnitude 15.00 mag
K-band apparent magnitude 13.01 mag
Transit duration 0.0995
( 2.388 )
day
hour
Transit depth 2.0 %
Time of mid-transit   2455321.72565 ± 0.00024     HJD or BJD
Orbital period 1.9000900 ± 0.0000005 days
Reference for orbital ephemeris   2019MNRAS.483..824R  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5440 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.1 ± 0.1 dex
Stellar mass 0.88 ± 0.07   Msun
Stellar radius 0.883 +0.025 −0.031 Rsun
Stellar logarithmic surface gravity 4.491 +0.015 −0.023 c.g.s.
Stellar mean density 1.28 +0.04 −0.09
( 1.806 +0.056 −0.127 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0288 ± 0.0008  AU
Planetary mass 3.30 ± 0.19
( 1049 ± 60 )
Mjup
Mearth
Planetary radius 1.146 +0.039 −0.048
( 12.85 + 0.44 − 0.54 )
Rjup
Rearth
Planetary surface gravity 61.7 +3.1 −4.2
3.79 +0.02 −0.03
m/s2
log(cgs)
Planetary mean density 2.06 +0.24 −0.29
( 2.73 +0.32 −0.38 )
ρjup
g cm-3
Planetary equilibrium temperature 1487 ± 19 K
Reference of detailed study 2019MNRAS.483..824R  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Hébrard et al. (2011)   −10   ±   20  

 

 


Page generated on 2024/05/08           John Southworth   (Keele University, UK)