TEPCat: Kepler-446b


This page summarises the information held within TEPCat for the transiting planetary system Kepler-446b. Please see here for descriptions of the quantities given below.


Discovery and basic observable quantities:
Quantity Value Unit
Reference of discovery paper 2015ApJ...801...18M  
Date of discovery paper 2015 / 1 / 8 y / m / d
Data/telescope used for discovery Kepler  
Right ascension 18 49 00.05 h m s
Declination +44 55 16.0 d m s
Right ascension (decimal) 282.25021 degrees
Declination (decimal) 44.92111 degrees
V-band apparent magnitude 17.26 mag
K-band apparent magnitude 12.83 mag
Transit duration 0.0325
( 0.780 )
Transit depth 0.33 %
Time of mid-transit   2454965.9135 ± 0.0019     HJD or BJD
Orbital period 1.565409 ± 0.0000033 days
Reference for orbital ephemeris   2015ApJ...801...18M  


Physical properties from the most recent detailed study:
Quantity Value Unit
Stellar effective temperature 3359 ± 60 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.30 ± 0.12 dex
Stellar mass 0.22 ± 0.05   Msun
Stellar radius 0.24 ± 0.04 Rsun
Stellar logarithmic surface gravity c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis     AU
Planetary mass Mjup
Planetary radius 0.134 ± 0.022
( 1.50 ± 0.25 )
Planetary surface gravity m/s2
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2015ApJ...801...18M  


Kepler-446b does not have an entry in the catalogue of orbital obliquity measurements.


Kepler-446b has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.


Page generated on 2022/12/01           John Southworth   (Keele University, UK)