TEPCat: K2-136b


 

This page summarises the information held within TEPCat for the transiting planetary system K2-136b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2018AJ....155....4M  
Date of discovery paper 2017 / 10 / 2 y / m / d
Data/telescope used for discovery K2  
Right ascension 04 29 38.99 h m s
Declination +22 52 57.8 d m s
Right ascension (decimal) 67.41246 degrees
Declination (decimal) 22.88272 degrees
V-band apparent magnitude 11.20 mag
K-band apparent magnitude 8.37 mag
Transit duration 0.111
( 2.66 )
day
hour
Transit depth 0.02 %
Time of mid-transit   2458679.083 ± 0.075     HJD or BJD
Orbital period 7.97525 ± 0.00073 days
Reference for orbital ephemeris   2023AJ....165..235M  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4500 +125 −75 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.05 ± 0.10 dex
Stellar mass 0.742 +0.039 −0.038   Msun
Stellar radius 0.677 ± 0.027 Rsun
Stellar logarithmic surface gravity 4.66 ± 0.02 c.g.s.
Stellar mean density 2.40 ± 0.31
( 3.39 ± 0.44 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.32 −0.0  
Orbital semimajor axis   0.0707 ± 0.0012  AU
Planetary mass 0.0 +0.014 −0.0
( 0.0 +4.5 −0.0 )
Mjup
Mearth
Planetary radius 0.0905 +0.0045 −0.0044
( 1.014 +0.050 −0.049 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2023AJ....165..235M  

 

K2-136b does not have an entry in the catalogue of orbital obliquity measurements.

 


Page generated on 2024/04/19           John Southworth   (Keele University, UK)