TEPCat: K2-12b


 

This page summarises the information held within TEPCat for the transiting system K2-12b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2015ApJ...809...25M  
Date of discovery paper 2015 / 3 / 27 y / m / d
Right ascension 11 32 46.09 h m s
Declination +02 14 41.6 d m s
V-band apparent magnitude 12.26 mag
K-band apparent magnitude 10.60 mag
Transit duration 0.0
( 0. )
day
hour
Transit depth 0.04 %
Time of mid-transit   2456815.37380 ± 0.00610     HJD or BJD
Orbital period 8.28186 ± 0.00060 days
Reference for orbital ephemeris   2015ApJ...809...25M  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5800 +53 −90 K
Stellar metal abundance ([Fe/H] or [M/H])   0.03 +0.13 −0.17 dex
Stellar mass 1.01 +0.05 −0.06   Msun
Stellar radius 1.01 +0.27 −0.09 Rsun
Stellar logarithmic surface gravity c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0802 ± 0.0021  AU
Planetary mass Mjup
Mearth
Planetary radius 0.208 ± 0.052
( 2.33 ± 0.58 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature 1003 ± 121 K
Reference of detailed study 2015ApJ...809...25M  

 

K2-12b does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-12b 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)