TEPCat: K2-99


 

This page summarises the information held within TEPCat for the transiting planetary system K2-99. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2017MNRAS.464.2708S  
Date of discovery paper 2016 / 9 / 2 y / m / d
Right ascension 13 55 05.70 h m s
Declination −05 26 32.9 d m s
V-band apparent magnitude 11.15 mag
K-band apparent magnitude 9.72 mag
Transit duration 0.49
( 11.8 )
day
hour
Transit depth 0.2 %
Time of mid-transit   2457233.823 ± 0.003     HJD or BJD
Orbital period 18.249 ± 0.001 days
Reference for orbital ephemeris   2017MNRAS.464.2708S  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5990 ± 40 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.20 ± 0.05 dex
Stellar mass 1.60 +0.14 −0.10   Msun
Stellar radius 3.1 ± 0.1 Rsun
Stellar logarithmic surface gravity 3.67 ± 0.04 c.g.s.
Stellar mean density 0.055 ± 0.002
( 0.0776 ± 0.0028 )
ρsun
g cm-3
Orbital eccentricity 0.19 ± 0.04  
Orbital semimajor axis   0.159 ± 0.006  AU
Planetary mass 0.97 ± 0.09
( 308 ± 28 )
Mjup
Mearth
Planetary radius 1.29 ± 0.05
( 14.46 ± 0.56 )
Rjup
Rearth
Planetary surface gravity 15.8 +4.1 −3.3
3.2 +0.1 −0.1
m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2017MNRAS.464.2708S  

 

K2-99 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-99 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)