TEPCat: K2-266b


 

This page summarises the information held within TEPCat for the transiting planetary system K2-266b. 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 0.01306
( 0.3134 )
day
hour
Transit depth 0.031 %
Time of mid-transit   2457949.6749 ± 0.0031     HJD or BJD
Orbital period 0.658524 ± 0.000017 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  
Orbital semimajor axis   0.01306 +0.00020 −0.00021  AU
Planetary mass 0.036 +0.035 −0.020
( 11.4 +11.1 −6.4 )
Mjup
Mearth
Planetary radius 0.29 +0.16 −0.21
( 3.3 +1.8 −2.4 )
Rjup
Rearth
Planetary surface gravity 10.0 +3.8 −2.6
3.0 +0.1 −0.1
m/s2
log(cgs)
Planetary mean density 1.33 +1.43 −0.66
( 1.76 +1.90 −0.88 )
ρjup
g cm-3
Planetary equilibrium temperature 1515 ± 18 K
Reference of detailed study 2018AJ....156..245R  

 

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

 

K2-266b 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)