TEPCat: K2-98


 

This page summarises the information held within TEPCat for the transiting planetary system K2-98. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2016AJ....152..193B  
Date of discovery paper 2016 / 8 / 4 y / m / d
Right ascension 08 25 57.19 h m s
Declination +11 30 40.1 d m s
V-band apparent magnitude 12.17 mag
K-band apparent magnitude 10.87 mag
Transit duration 0.210
( 5.04 )
day
hour
Transit depth 0.11 %
Time of mid-transit   2457145.9807 ± 0.0012     HJD or BJD
Orbital period 10.13675 ± 0.00033 days
Reference for orbital ephemeris   2016AJ....152..193B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6120 ± 80 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.2 ± 0.1 dex
Stellar mass 1.074 ± 0.042   Msun
Stellar radius 1.311 +0.083 −0.048 Rsun
Stellar logarithmic surface gravity 4.23 +0.03 −0.05 c.g.s.
Stellar mean density 0.47 +0.05 −0.09
( 0.663 +0.071 −0.127 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0943 +0.0061 −0.0052  AU
Planetary mass 0.101 ± 0.025
( 32.1 ± 7.9 )
Mjup
Mearth
Planetary radius 0.38 +0.03 −0.02
( 4.26 +0.34 −0.22 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 1.62 +0.51 −0.45
( 2.15 +0.68 −0.60 )
ρjup
g cm-3
Planetary equilibrium temperature 1102 +26 −20 K
Reference of detailed study 2016AJ....152..193B  

 

K2-98 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-98 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)