TEPCat: K2-266c


 

This page summarises the information held within TEPCat for the transiting planetary system K2-266c. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2018AJ....156..245R  
Date of discovery paper 2018 / 6 / 25 y / m / d
Data/telescope used for discovery K2  
Right ascension 10 31 44.51 h m s
Declination +00 56 15.3 d m s
Right ascension (decimal) 157.93546 degrees
Declination (decimal) 0.93758 degrees
V-band apparent magnitude 11.81 mag
K-band apparent magnitude 8.90 mag
Transit duration 0.0893
( 2.143 )
day
hour
Transit depth 0.10 %
Time of mid-transit   2457946.6510 ± 0.0065     HJD or BJD
Orbital period 7.8140 ± 0.0018 days
Reference for orbital ephemeris   2018AJ....156..245R  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4285 +49 −57 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.12 +0.40 −0.42 dex
Stellar mass 0.686 ± 0.033   Msun
Stellar radius 0.703 +0.024 −0.022 Rsun
Stellar logarithmic surface gravity 4.581 +0.032 −0.037 c.g.s.
Stellar mean density 1.98 +0.21 −0.22
( 2.79 +0.30 −0.31 )
ρsun
g cm-3
Orbital eccentricity 0.042 +0.043 −0.030  
Orbital semimajor axis   0.0679 ± 0.0011  AU
Planetary mass 0.0009 +0.0005 −0.0004
( 0.29 +0.16 −0.13 )
Mjup
Mearth
Planetary radius 0.063 +0.009 −0.008
( 0.706 +0.101 −0.090 )
Rjup
Rearth
Planetary surface gravity 5.6 +1.6 −1.3
2.7 +0.1 −0.1
m/s2
log(cgs)
Planetary mean density 3.40 +0.61 −0.51
( 4.51 +0.81 −0.68 )
ρjup
g cm-3
Planetary equilibrium temperature 665 +8 −7 K
Reference of detailed study 2018AJ....156..245R  

 

K2-266c does not have an entry in the catalogue of orbital obliquity measurements.

 


Page generated on 2025/02/12           John Southworth   (Keele University, UK)