TEPCat: Kepler-39


 

This page summarises the information held within TEPCat for the transiting brown dwarf system Kepler-39. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2011A+A...533A..83B  
Date of discovery paper 2011 / 6 / 16 y / m / d
Data/telescope used for discovery Kepler  
Right ascension 19 47 50.46 h m s
Declination +46 02 03.5 d m s
Right ascension (decimal) 296.96025 degrees
Declination (decimal) 46.03431 degrees
V-band apparent magnitude 14.33 mag
K-band apparent magnitude 12.92 mag
Transit duration 0.2483
( 5.959 )
day
hour
Transit depth 0.7 %
Time of mid-transit   2455042.60707 ± 0.00021     HJD or BJD
Orbital period 21.087212 ± 0.000030 days
Reference for orbital ephemeris   2015A+A...575A..85B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6290 ± 120 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.04 ± 0.11 dex
Stellar mass 1.20 ± 0.09   Msun
Stellar radius 1.26 ± 0.03 Rsun
Stellar logarithmic surface gravity 4.34 ± 0.02 c.g.s.
Stellar mean density 0.65 ± 0.04
( 0.917 ± 0.056 )
ρsun
g cm-3
Orbital eccentricity 0.066 +0.036 −0.0  
Orbital semimajor axis   0.162 ± 0.003  AU
Planetary mass 19.0 ± 1.3
( 60399 ± 4133 )
Mjup
Mearth
Planetary radius 1.07 ± 0.03
( 11.99 ± 0.34 )
Rjup
Rearth
Planetary surface gravity 380 ± 26
4.58 ± 0.03
m/s2
log(cgs)
Planetary mean density 13.1 +1.2 −1.1
( 17.4 + 1.6 − 1.5 )
ρjup
g cm-3
Planetary equilibrium temperature 853 ± 14 K
Reference of detailed study 2023MNRAS.519.5177C  

 

Kepler-39 does not have an entry in the catalogue of orbital obliquity measurements.

 


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