TEPCat: G 9-40


 

This page summarises the information held within TEPCat for the transiting planetary system G 9-40. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1912.00291  
Date of discovery paper 2019 / 12 / 2 y / m / d
Right ascension 08 58 52.33 h m s
Declination +21 04 34.2 d m s
V-band apparent magnitude 13.82 mag
K-band apparent magnitude 9.19 mag
Transit duration 0.0557
( 1.337 )
day
hour
Transit depth 0.37 %
Time of mid-transit   2458497.77747 ± 0.00033     HJD or BJD
Orbital period 5.746007 ± 0.000006 days
Reference for orbital ephemeris   arXiv:1912.00291  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3348 ± 32 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.04 +0.10 −0.11 dex
Stellar mass 0.290 ± 0.020   Msun
Stellar radius 0.3073 +0.0059 −0.0061 Rsun
Stellar logarithmic surface gravity 4.926 ± 0.027 c.g.s.
Stellar mean density 10.00 +0.70 −0.65
( 14.11 + 0.99 − 0.92 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0385 +0.0078 −0.0053  AU
Planetary mass 0.0 +0.037 −0.0
( 0 +11 −0 )
Mjup
Mearth
Planetary radius 0.1807 ± 0.0086
( 2.025 ± 0.096 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature 456 +35 −40 K
Reference of detailed study arXiv:1912.00291  

 

G 9-40 does not have an entry in the catalogue of orbital obliquity measurements.

 

G 9-40 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)