TEPCat: TOI-421b


 

This page summarises the information held within TEPCat for the transiting planetary system TOI-421b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2004.10095  
Date of discovery paper 2020 / 4 / 22 y / m / d
Right ascension 05 27 24.83 h m s
Declination −14 16 37.1 d m s
V-band apparent magnitude 9.93 mag
K-band apparent magnitude 8.07 mag
Transit duration 0.113
( 2.71 )
day
hour
Transit depth 0.3 %
Time of mid-transit   2458440.13169 ± 0.00069     HJD or BJD
Orbital period 16.06815 ± 0.00035 days
Reference for orbital ephemeris   arXiv:2004.10095  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5325 +78 −58 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.02 ± 0.05 dex
Stellar mass 0.852 +0.029 −0.021   Msun
Stellar radius 0.871 ± 0.012 Rsun
Stellar logarithmic surface gravity 4.486 +0.025 −0.018 c.g.s.
Stellar mean density 1.296 +0.068 −0.071
( 1.829 +0.096 −0.100 )
ρsun
g cm-3
Orbital eccentricity 0.171 +0.087 −0.086  
Orbital semimajor axis   0.1182 +0.0026 −0.0027  AU
Planetary mass 0.0511 +0.0035 −0.0034
( 16.2 +1.1 −1.1 )
Mjup
Mearth
Planetary radius 0.461 ± 0.012
( 5.17 ± 0.13 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 0.486 +0.052 −0.047
( 0.645 +0.069 −0.062 )
ρjup
g cm-3
Planetary equilibrium temperature 697 ± 12 K
Reference of detailed study arXiv:2004.10095  

 

TOI-421b does not have an entry in the catalogue of orbital obliquity measurements.

 

TOI-421b has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2021/12/02           John Southworth   (Keele University, UK)