TEPCat: K2-266d


 

This page summarises the information held within TEPCat for the transiting planetary system K2-266d. 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 0.1416
( 3.398 )
day
hour
Transit depth 0.18 %
Time of mid-transit   2457944.8393 ± 0.0012     HJD or BJD
Orbital period 14.69700 ± 0.00035 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 0.047 +0.043 −0.032  
Orbital semimajor axis   0.1035 +0.0016 −0.0017  AU
Planetary mass 0.030 +0.009 −0.006
( 9.5 +2.9 −1.9 )
Mjup
Mearth
Planetary radius 0.261 +0.012 −0.011
( 2.93 +0.13 −0.12 )
Rjup
Rearth
Planetary surface gravity 10.6 +3.4 −2.2
3.0 +0.1 −0.1
m/s2
log(cgs)
Planetary mean density 1.53 +0.48 −0.32
( 2.03 +0.64 −0.42 )
ρjup
g cm-3
Planetary equilibrium temperature 538 +7 −6 K
Reference of detailed study 2018AJ....156..245R  

 

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

 

K2-266d has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2022/12/07           John Southworth   (Keele University, UK)