TEPCat: K2-32b


 

This page summarises the information held within TEPCat for the transiting planetary system K2-32b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2016ApJ...827...78S  
Date of discovery paper 2015 / 12 / 1 y / m / d
Right ascension 16 49 42.26 h m s
Declination −19 32 34.2 d m s
V-band apparent magnitude 12.31 mag
K-band apparent magnitude 9.82 mag
Transit duration 0.154
( 3.70 )
day
hour
Transit depth 0.4 %
Time of mid-transit   2456900.9258 ± 0.0029     HJD or BJD
Orbital period 8.99218 ± 0.00020 days
Reference for orbital ephemeris   2016ApJ...827...78S  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5275 ± 60 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.02 ± 0.04 dex
Stellar mass 0.856 ± 0.028   Msun
Stellar radius 0.845 +0.044 −0.035 Rsun
Stellar logarithmic surface gravity 4.49 ± 0.05 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0 +0.23 −0.0  
Orbital semimajor axis   0.08036 ± 0.00088  AU
Planetary mass 0.0519 ± 0.0085
( 16.5 ± 2.7 )
Mjup
Mearth
Planetary radius 0.458 ± 0.025
( 5.13 ± 0.28 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 0.56 ± 0.19
( 0.74 ± 0.25 )
ρjup
g cm-3
Planetary equilibrium temperature 817 ± 25 K
Reference of detailed study 2017AJ....153..142P  

 

K2-32b does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-32b 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)