TEPCat: K2-103


 

This page summarises the information held within TEPCat for the transiting planetary system K2-103. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2017AJ....153...64M  
Date of discovery paper 2016 / 9 / 6 y / m / d
Right ascension 08 41 38.49 h m s
Declination +17 38 24.0 d m s
V-band apparent magnitude 15.26 mag
K-band apparent magnitude 11.43 mag
Transit duration 0.145
( 3.48 )
day
hour
Transit depth 0.13 %
Time of mid-transit   2457123.23787 ± 0.00432     HJD or BJD
Orbital period 21.1697 ± 0.0017 days
Reference for orbital ephemeris   2017AJ....153...64M  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3880 ± 67 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.14 ± 0.04 dex
Stellar mass 0.61 ± 0.02   Msun
Stellar radius 0.59 ± 0.03 Rsun
Stellar logarithmic surface gravity c.g.s.
Stellar mean density 2.98 +0.43 −0.38
( 4.20 +0.61 −0.54 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis     AU
Planetary mass Mjup
Mearth
Planetary radius 0.20 +0.02 −0.01
( 2.24 +0.22 −0.11 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2017AJ....153...64M  

 

K2-103 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-103 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)