TEPCat: Kepler-1657


 

This page summarises the information held within TEPCat for the transiting planetary system Kepler-1657. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2019A+A...623A.104H  
Date of discovery paper 2018 / 11 / 26 y / m / d
Data/telescope used for discovery Kepler  
Right ascension 19 33 07.58 h m s
Declination +45 18 34.8 d m s
Right ascension (decimal) 293.28158 degrees
Declination (decimal) 45.30967 degrees
V-band apparent magnitude 14.67 mag
K-band apparent magnitude 13.10 mag
Transit duration 0.2807
( 6.737 )
day
hour
Transit depth 1.4 %
Time of mid-transit   2455936.65434 ± 0.00018     HJD or BJD
Orbital period 141.241671 ± 0.000086 days
Reference for orbital ephemeris   2019A+A...623A.104H  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5830 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.16 ± 0.07 dex
Stellar mass 1.01 +0.07 −0.16   Msun
Stellar radius 0.96 +0.05 −0.06 Rsun
Stellar logarithmic surface gravity 4.473 +0.027 −0.034 c.g.s.
Stellar mean density 1.33 +0.28 −0.24
( 1.88 +0.40 −0.34 )
ρsun
g cm-3
Orbital eccentricity 0.496 ± 0.031  
Orbital semimajor axis   0.534 +0.012 −0.030  AU
Planetary mass 1.93 +0.19 −0.21
( 613 +60 −66 )
Mjup
Mearth
Planetary radius 0.99 +0.06 −0.07
( 11.10 + 0.67 − 0.78 )
Rjup
Rearth
Planetary surface gravity 49.0 +6.0 −5.3
3.69 +0.05 −0.05
m/s2
log(cgs)
Planetary mean density 1.85 +0.32 −0.27
( 2.45 +0.42 −0.36 )
ρjup
g cm-3
Planetary equilibrium temperature 347 ± 12 K
Reference of detailed study 2019A+A...623A.104H  

 

Kepler-1657 does not have an entry in the catalogue of orbital obliquity measurements.

 

Kepler-1657 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)