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 2020AJ....160..114C  
Date of discovery paper 2020 / 4 / 22 y / m / d
Data/telescope used for discovery TESS  
Right ascension 05 27 24.83 h m s
Declination −14 16 37.1 d m s
Right ascension (decimal) 81.85346 degrees
Declination (decimal) -14.27697 degrees
V-band apparent magnitude 9.93 mag
K-band apparent magnitude 8.07 mag
Transit duration 0.0454
( 1.090 )
day
hour
Transit depth 0.08 %
Time of mid-transit   2459189.7341 ± 0.0005     HJD or BJD
Orbital period 5.197576 ± 0.000005 days
Reference for orbital ephemeris   arXiv:2404.11074  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5291 ± 64 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.044 ± 0.04 dex
Stellar mass 0.833 +0.048 −0.054   Msun
Stellar radius 0.866 ± 0.006 Rsun
Stellar logarithmic surface gravity 4.48 ± 0.03 c.g.s.
Stellar mean density 1.29 ± 0.15
( 1.82 ± 0.21 )
ρsun
g cm-3
Orbital eccentricity 0.13 ± 0.05  
Orbital semimajor axis   0.0554 ± 0.0010  AU
Planetary mass 0.0211 ± 0.0019
( 6.71 ± 0.60 )
Mjup
Mearth
Planetary radius 0.236 ± 0.007
( 2.645 ± 0.078 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 1.53 ± 0.21
( 2.03 ± 0.28 )
ρjup
g cm-3
Planetary equilibrium temperature 922 ± 14 K
Reference of detailed study arXiv:2404.11074  

 

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

 


Page generated on 2024/05/08           John Southworth   (Keele University, UK)