TEPCat: GJ 3473


 

This page summarises the information held within TEPCat for the transiting planetary system GJ 3473. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2009.10432  
Date of discovery paper 2020 / 9 / 23 y / m / d
Right ascension 08 02 22.88 h m s
Declination +03 20 19.7 d m s
V-band apparent magnitude 13.69 mag
K-band apparent magnitude 8.83 mag
Transit duration 0.043
( 1.03 )
day
hour
Transit depth 0.1 %
Time of mid-transit   2458492.20408 ± 0.00043     HJD or BJD
Orbital period 1.1980035 ± 0.0000019 days
Reference for orbital ephemeris   arXiv:2009.10432  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3347 ± 54 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.11 ± 0.19 dex
Stellar mass 0.360 ± 0.016   Msun
Stellar radius 0.364 ± 0.012 Rsun
Stellar logarithmic surface gravity 4.81 ± 0.06 c.g.s.
Stellar mean density 7.75 +0.47 −0.49
( 10.94 + 0.66 − 0.69 )
ρsun
g cm-3
Orbital eccentricity 0.01  
Orbital semimajor axis   0.01589 ± 0.00062  AU
Planetary mass 0.0059 ± 0.0009
( 1.88 ± 0.29 )
Mjup
Mearth
Planetary radius 0.1128 +0.0045 −0.0044
( 1.264 +0.050 −0.049 )
Rjup
Rearth
Planetary surface gravity 11.4 +2.1 −2.0
3.06 +0.07 −0.08
m/s2
log(cgs)
Planetary mean density 3.79 +0.81 −0.70
( 5.03 +1.07 −0.93 )
ρjup
g cm-3
Planetary equilibrium temperature 773 +16 −15 K
Reference of detailed study arXiv:2009.10432  

 

GJ 3473 does not have an entry in the catalogue of orbital obliquity measurements.

 

GJ 3473 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2021/11/15           John Southworth   (Keele University, UK)