TEPCat: HD 191939c


 

This page summarises the information held within TEPCat for the transiting planetary system HD 191939c. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2002.03958  
Date of discovery paper 2020 / 2 / 11 y / m / d
Data/telescope used for discovery TESS  
Right ascension 20 08 06.15 h m s
Declination +66 51 01.1 d m s
Right ascension (decimal) 302.02562 degrees
Declination (decimal) 66.85031 degrees
V-band apparent magnitude 8.97 mag
K-band apparent magnitude 7.18 mag
Transit duration 0.1734
( 4.162 )
day
hour
Transit depth 0.10 %
Time of mid-transit   2459440.5491 ± 0.0009     HJD or BJD
Orbital period 28.579743 ± 0.000045 days
Reference for orbital ephemeris   arXiv:2211.00667  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5427 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.16 ± 0.08 dex
Stellar mass 0.92 ± 0.06   Msun
Stellar radius 0.945 ± 0.021 Rsun
Stellar logarithmic surface gravity 4.40 ± 0.10 c.g.s.
Stellar mean density 1.16 +0.62 −0.28
( 1.64 +0.87 −0.40 )
ρsun
g cm-3
Orbital eccentricity 0.034 +0.034 −0.013  
Orbital semimajor axis   0.1752 +0.0055 −0.0050  AU
Planetary mass 0.0252 ± 0.0031
( 8.01 ± 0.99 )
Mjup
Mearth
Planetary radius 0.2850 ± 0.0067
( 3.195 ± 0.075 )
Rjup
Rearth
Planetary surface gravity 7.7 +1.1 −1.0
2.89 +0.06 −0.06
m/s2
log(cgs)
Planetary mean density 1.02 ± 0.15
( 1.35 ± 0.20 )
ρjup
g cm-3
Planetary equilibrium temperature 600 ± 13 K
Reference of detailed study arXiv:2211.00667  

 

HD 191939c does not have an entry in the catalogue of orbital obliquity measurements.

 

HD 191939c has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2022/12/01           John Southworth   (Keele University, UK)