TEPCat: K2-25b


 

This page summarises the information held within TEPCat for the transiting planetary system K2-25b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2016ApJ...818...46M  
Date of discovery paper 2015 / 12 / 3 y / m / d
Right ascension 04 13 05.62 h m s
Declination +15 14 52.0 d m s
V-band apparent magnitude 15.88 mag
K-band apparent magnitude 10.44 mag
Transit duration 0.033
( 0.79 )
day
hour
Transit depth 1.2 %
Time of mid-transit   2457062.57935 ± 0.00037     HJD or BJD
Orbital period 3.484552 ± 0.000034 days
Reference for orbital ephemeris   2016ApJ...818...46M  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3180 ± 60 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.15 ± 0.03 dex
Stellar mass 0.294 ± 0.021   Msun
Stellar radius 0.295 ± 0.020 Rsun
Stellar logarithmic surface gravity c.g.s.
Stellar mean density 11.3 +1.7 −1.5
( 15.9 + 2.4 − 2.1 )
ρsun
g cm-3
Orbital eccentricity 0.27 +0.16 −0.21  
Orbital semimajor axis     AU
Planetary mass 0 +1.2 −0
( 0 +381 −0 )
Mjup
Mearth
Planetary radius 0.306 +0.085 −0.028
( 3.43 +0.95 −0.31 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study arXiv:1602.01901  

 

K2-25b does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-25b has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/12           John Southworth   (Keele University, UK)