TEPCat: TOI-2421


 

This page summarises the information held within TEPCat for the transiting planetary system TOI-2421. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2205.09728  
Date of discovery paper 2022 / 5 / 20 y / m / d
Data/telescope used for discovery TESS  
Right ascension 02 12 36.97 h m s
Declination −35 23 27.3 d m s
Right ascension (decimal) 33.15404 degrees
Declination (decimal) -35.39092 degrees
V-band apparent magnitude 11.49 mag
K-band apparent magnitude 9.67 mag
Transit duration 0.2026
( 4.862 )
day
hour
Transit depth 0.29 %
Time of mid-transit   2458957.02765 ± 0.00064     HJD or BJD
Orbital period 4.3474032 ± 0.0000079 days
Reference for orbital ephemeris   arXiv:2205.09728  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5607 ± 68 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.190 +0.083 −0.085 dex
Stellar mass 1.131 +0.130 −0.064   Msun
Stellar radius 1.750 +0.051 −0.049 Rsun
Stellar logarithmic surface gravity 4.005 +0.059 −0.037 c.g.s.
Stellar mean density 0.210 +0.034 −0.022
( 0.296 +0.048 −0.031 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.136 −0.0  
Orbital semimajor axis   0.0543 +0.0021 −0.0010  AU
Planetary mass 0.333 ± 0.079
( 105 ± 25 )
Mjup
Mearth
Planetary radius 0.925 +0.035 −0.034
( 10.37 + 0.39 − 0.38 )
Rjup
Rearth
Planetary surface gravity 9.6 +2.5 −2.3
3.0 +0.1 −0.1
m/s2
log(cgs)
Planetary mean density 0.224 +0.036 −0.023
( 0.297 +0.048 −0.031 )
ρjup
g cm-3
Planetary equilibrium temperature 1534 +20 −28 K
Reference of detailed study arXiv:2205.09728  

 

TOI-2421 does not have an entry in the catalogue of orbital obliquity measurements.

 

TOI-2421 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2022/11/23           John Southworth   (Keele University, UK)