TEPCat: K2-3b


 

This page summarises the information held within TEPCat for the transiting planetary system K2-3b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2015ApJ...804...10C  
Date of discovery paper 2014 / 1 / 16 y / m / d
Right ascension 11 29 20.39 h m s
Declination −01 27 17.2 d m s
V-band apparent magnitude 12.17 mag
K-band apparent magnitude 8.56 mag
Transit duration 0.1068
( 2.563 )
day
hour
Transit depth 0.014 %
Time of mid-transit   2456813.42024 ± 0.00094     HJD or BJD
Orbital period 10.054544 ± 0.000029 days
Reference for orbital ephemeris   2016ApJ...822...39B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3896 ± 189 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.32 ± 0.13 dex
Stellar mass 0.612 ± 0.086   Msun
Stellar radius 0.553 ± 0.041 Rsun
Stellar logarithmic surface gravity 4.734 ± 0.062 c.g.s.
Stellar mean density 2.54 ± 0.43
( 3.58 ± 0.61 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0775 ± 0.0039  AU
Planetary mass 0.0255 +0.0063 −0.0060
( 8.1 +2.0 −1.9 )
Mjup
Mearth
Planetary radius 0.185 +0.016 −0.008
( 2.074 +0.179 −0.090 )
Rjup
Rearth
Planetary surface gravity 3.4 ± 1.5
2.5 ± 0.2
m/s2
log(cgs)
Planetary mean density 3.3 +1.5 −0.6
( 4.38 +1.99 −0.80 )
ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2016ApJ...823..115D  

 

K2-3b does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-3b 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)