TEPCat: Kepler-89b


 

This page summarises the information held within TEPCat for the transiting planetary system Kepler-89b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2013ApJ...768...14W  
Date of discovery paper 2013 / 3 / 10 y / m / d
Right ascension 19 49 19.93 h m s
Declination +41 53 28.0 d m s
V-band apparent magnitude 12.33 mag
K-band apparent magnitude 10.93 mag
Transit duration 0.17
( 4.1 )
day
hour
Transit depth 0.02 %
Time of mid-transit   2454964.6175 ± 0.0021     HJD or BJD
Orbital period 3.743208 ± 0.000015 days
Reference for orbital ephemeris   2013ApJ...768...14W  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6182 ± 82 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.02 ± 0.02 dex
Stellar mass 1.277 ± 0.050   Msun
Stellar radius 1.52 ± 0.14 Rsun
Stellar logarithmic surface gravity 4.181 ± 0.066 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.25 ± 0.17  
Orbital semimajor axis   0.05119 ± 0.00067  AU
Planetary mass 0.033 ± 0.014
( 10.5 ± 4.5 )
Mjup
Mearth
Planetary radius 0.153 ± 0.014
( 1.71 ± 0.16 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 7.6 +4.1 −4.2
( 10.1 + 5.4 − 5.6 )
ρjup
g cm-3
Planetary equilibrium temperature 1486 K
Reference of detailed study 2013ApJ...768...14W  

 

Kepler-89b does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

Kepler-89b 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)