TEPCat: EPIC 228813918


 

This page summarises the information held within TEPCat for the transiting planetary system EPIC 228813918. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1707.04549  
Date of discovery paper 2017 / 7 / 17 y / m / d
Right ascension 12 27 28.97 h m s
Declination −06 11 42.8 d m s
V-band apparent magnitude 15.50 mag
K-band apparent magnitude 10.88 mag
Transit duration 0.0262
( 0.629 )
day
hour
Transit depth 0.035 %
Time of mid-transit   2457583.0242 ± 0.0004     HJD or BJD
Orbital period 0.179715 ± 0.000001 days
Reference for orbital ephemeris   arXiv:1707.04549  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3492 ± 70 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.08 ± 0.12 dex
Stellar mass 0.463 ± 0.052   Msun
Stellar radius 0.442 ± 0.044 Rsun
Stellar logarithmic surface gravity 4.815 ± 0.043 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0058 ± 0.0006  AU
Planetary mass 0.0 +0.7 −0.0
( 0 +222 −0 )
Mjup
Mearth
Planetary radius 0.079 ± 0.008
( 0.886 ± 0.090 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature 1471 ± 47 K
Reference of detailed study arXiv:1707.04549  

 

EPIC 228813918 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

EPIC 228813918 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/12           John Southworth   (Keele University, UK)