TEPCat: TOI-421c


 

This page summarises the information held within TEPCat for the transiting planetary system TOI-421c. 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 0.0465
( 1.116 )
day
hour
Transit depth 0.15 %
Time of mid-transit   2458441.2847 ± 0.0019     HJD or BJD
Orbital period 5.19676 ± 0.00049 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 0.147 +0.069 −0.065  
Orbital semimajor axis   0.0557 +0.0012 −0.0013  AU
Planetary mass 0.0222 ± 0.0022
( 7.06 ± 0.70 )
Mjup
Mearth
Planetary radius 0.243 ± 0.017
( 2.72 ± 0.19 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 1.45 +0.37 −0.29
( 1.92 +0.49 −0.38 )
ρjup
g cm-3
Planetary equilibrium temperature 1015 ± 18 K
Reference of detailed study arXiv:2004.10095  

 

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

 

TOI-421c 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)