TEPCat: Kepler-278c


 

This page summarises the information held within TEPCat for the transiting planetary system Kepler-278c. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2014ApJ...784...45R  
Date of discovery paper 2014 / 3 / 20 y / m / d
Right ascension 19 20 25.72 h m s
Declination +38 42 08.0 d m s
V-band apparent magnitude 11.83 mag
K-band apparent magnitude 9.46 mag
Transit duration 0.4715
( 11.316 )
day
hour
Transit depth 0.01 %
Time of mid-transit   2454985.34892 ± 0.00953     HJD or BJD
Orbital period 51.078775 ± 0.000890 days
Reference for orbital ephemeris   arXiv:1912.10278  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4965 ± 54 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.22 ± 0.04 dex
Stellar mass 1.227 ± 0.061   Msun
Stellar radius 2.861 +0.060 −0.066 Rsun
Stellar logarithmic surface gravity 3.58 ± 0.10 c.g.s.
Stellar mean density 0.052 ± 0.004
( 0.0734 ± 0.0056 )
ρsun
g cm-3
Orbital eccentricity 0.616 +0.015 −0.023  
Orbital semimajor axis   0.287 ± 0.007  AU
Planetary mass 0.11 +0.03 −0.07
( 35.0 +9.5 −22.3 )
Mjup
Mearth
Planetary radius 0.292 ± 0.006
( 3.273 ± 0.067 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 4.1 +1.1 −2.4
( 5.4 +1.5 −3.2 )
ρjup
g cm-3
Planetary equilibrium temperature 492 ± 16 K
Reference of detailed study arXiv:1912.10278  

 

Kepler-278c does not have an entry in the catalogue of orbital obliquity measurements.

 

Kepler-278c has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2021/01/04           John Southworth   (Keele University, UK)