TEPCat: TOI-157


 

This page summarises the information held within TEPCat for the transiting planetary system TOI-157. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2003.05932  
Date of discovery paper 2020 / 3 / 13 y / m / d
Right ascension 04 54 48.34 h m s
Declination −76 40 50.2 d m s
V-band apparent magnitude 12.73 mag
K-band apparent magnitude 10.89 mag
Transit duration 0.08941
( 2.1458 )
day
hour
Transit depth 1.3 %
Time of mid-transit   2458326.54771 ± 0.00022     HJD or BJD
Orbital period 2.0845435 ± 0.0000023 days
Reference for orbital ephemeris   arXiv:2003.05932  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5404 +70 −67 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.24 ± 0.09 dex
Stellar mass 0.948 +0.023 −0.018   Msun
Stellar radius 1.167 +0.017 −0.014 Rsun
Stellar logarithmic surface gravity 4.281 ± 0.011 c.g.s.
Stellar mean density 0.597 ± 0.021
( 0.842 ± 0.030 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.21 −0.0  
Orbital semimajor axis   0.03138 +0.00025 −0.00021  AU
Planetary mass 1.18 +0.13 −0.12
( 375 +41 −38 )
Mjup
Mearth
Planetary radius 1.286 +0.023 −0.020
( 14.41 + 0.26 − 0.22 )
Rjup
Rearth
Planetary surface gravity 17.7 +2.0 −1.9
3.25 +0.05 −0.05
m/s2
log(cgs)
Planetary mean density 0.517 +0.060 −0.059
( 0.686 +0.080 −0.078 )
ρjup
g cm-3
Planetary equilibrium temperature 1588 +21 −20 K
Reference of detailed study arXiv:2003.05932  

 

TOI-157 does not have an entry in the catalogue of orbital obliquity measurements.

 

TOI-157 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)