TEPCat: Kepler-391c


 

This page summarises the information held within TEPCat for the transiting planetary system Kepler-391c. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2014ApJ...784...45R  
Date of discovery paper 2014 / 3 / 20 y / m / d
Right ascension 19 22 29.24 h m s
Declination +51 03 26.3 d m s
V-band apparent magnitude 13.23 mag
K-band apparent magnitude 10.97 mag
Transit duration 0.4325
( 10.380 )
day
hour
Transit depth 0.01 %
Time of mid-transit   2454979.92391 ± 0.01078     HJD or BJD
Orbital period 20.485435 ± 0.000393 days
Reference for orbital ephemeris   arXiv:1912.10278  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5038 ± 57 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.04 ± 0.02 dex
Stellar mass 1.270 ± 0.081   Msun
Stellar radius 2.88 ± 0.32 Rsun
Stellar logarithmic surface gravity 3.62 ± 0.05 c.g.s.
Stellar mean density 0.052 ± 0.094
( 0.073 ± 0.133 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.23 −0.0  
Orbital semimajor axis   0.164 +0.026 −0.022  AU
Planetary mass 0.0 +1.4 −0.0
( 0 +445 −0 )
Mjup
Mearth
Planetary radius 0.257 ± 0.029
( 2.88 ± 0.33 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 0.0 +300 −0.0
( 0 +** − 0 )
ρjup
g cm-3
Planetary equilibrium temperature 662 +89 −97 K
Reference of detailed study arXiv:1912.10278  

 

Kepler-391c does not have an entry in the catalogue of orbital obliquity measurements.

 

Kepler-391c has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2021/01/04           John Southworth   (Keele University, UK)