TEPCat: KOI-4777


 

This page summarises the information held within TEPCat for the transiting planetary system KOI-4777. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2112.03958  
Date of discovery paper 2021 / 12 / 9 y / m / d
Data/telescope used for discovery Kepler  
Right ascension 19 09 02.92 h m s
Declination +42 01 56.0 d m s
Right ascension (decimal) 287.26217 degrees
Declination (decimal) 42.03222 degrees
V-band apparent magnitude 16.92 mag
K-band apparent magnitude 12.45 mag
Transit duration 0.030
( 0.72 )
day
hour
Transit depth 0.015 %
Time of mid-transit   2454965.219 ± 0.002     HJD or BJD
Orbital period 0.412000 ± 0.000001 days
Reference for orbital ephemeris   arXiv:2112.03958  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3515 ± 69 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.1 ± 0.1 dex
Stellar mass 0.41 ± 0.02   Msun
Stellar radius 0.40 ± 0.01 Rsun
Stellar logarithmic surface gravity 4.77 ± 0.04 c.g.s.
Stellar mean density 6.3 ± 0.4
( 8.89 ± 0.56 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0080 ± 0.0003  AU
Planetary mass 0.0 +0.31 −0.0
( 0 +98 −0 )
Mjup
Mearth
Planetary radius 0.046 ± 0.003
( 0.516 ± 0.034 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature 1180 ± 20 K
Reference of detailed study arXiv:2112.03958  

 

KOI-4777 does not have an entry in the catalogue of orbital obliquity measurements.

 

KOI-4777 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)