TEPCat: Kepler-57b


 

This page summarises the information held within TEPCat for the transiting system Kepler-57b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2013ApJS..208...22X  
Date of discovery paper 2012 / 8 / 17 y / m / d
Data/telescope used for discovery Kepler  
Right ascension 19 34 33.91 h m s
Declination +44 39 25.3 d m s
Right ascension (decimal) 293.64129 degrees
Declination (decimal) 44.65703 degrees
V-band apparent magnitude 15.01 mag
K-band apparent magnitude 12.89 mag
Transit duration 0.0440
( 1.056 )
day
hour
Transit depth 0.09 %
Time of mid-transit   2454971.55826 ± 0.00077     HJD or BJD
Orbital period 5.729329 ± 0.000007 days
Reference for orbital ephemeris   2014ApJ...784...45R  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5188 ± 91 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.04 ± 0.50 dex
Stellar mass 0.859 ± 0.049   Msun
Stellar radius 0.826 ± 0.019 Rsun
Stellar logarithmic surface gravity 4.60 ± 0.30 c.g.s.
Stellar mean density 1.51 ± 0.15
( 2.13 ± 0.21 )
ρsun
g cm-3
Orbital eccentricity 0.0162 +0.0024 −0.0021  
Orbital semimajor axis     AU
Planetary mass 0.079 +0.016 −0.015
( 25.1 +5.1 −4.8 )
Mjup
Mearth
Planetary radius 0.2797 +0.0080 −0.0079
( 3.135 +0.090 −0.089 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study arXiv:2207.07456  

 

Kepler-57b does not have an entry in the catalogue of orbital obliquity measurements.

 

Kepler-57b 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)