TEPCat: TOI-178c


 

This page summarises the information held within TEPCat for the transiting planetary system TOI-178c. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2021A+A...649A..26L  
Date of discovery paper 2021 / 1 / 25 y / m / d
Data/telescope used for discovery TESS  
Right ascension 00 29 12.30 h m s
Declination −30 27 13.5 d m s
Right ascension (decimal) 7.30125 degrees
Declination (decimal) -30.45375 degrees
V-band apparent magnitude 11.95 mag
K-band apparent magnitude 8.76 mag
Transit duration 0.0852
( 2.045 )
day
hour
Transit depth 0.054 %
Time of mid-transit   2458741.4783 ± 0.0032     HJD or BJD
Orbital period 3.238449 ± 0.000011 days
Reference for orbital ephemeris   2023A+A...678A.200D  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4316 ± 70 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.23 ± 0.05 dex
Stellar mass 0.647 +0.030 −0.029   Msun
Stellar radius 0.662 ± 0.010 Rsun
Stellar logarithmic surface gravity 4.45 ± 0.15 c.g.s.
Stellar mean density 2.23 ± 0.14
( 3.15 ± 0.20 )
ρsun
g cm-3
Orbital eccentricity 0.0073 +0.0083 −0.0051  
Orbital semimajor axis   0.03703 +0.00044 −0.00048  AU
Planetary mass 0.0150 +0.0017 −0.0021
( 4.77 +0.54 −0.67 )
Mjup
Mearth
Planetary radius 0.1503 +0.0046 −0.0045
( 1.685 +0.052 −0.050 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 4.2 +1.2 −1.0
( 5.6 +1.6 −1.3 )
ρjup
g cm-3
Planetary equilibrium temperature 873 ± 18 K
Reference of detailed study 2023A+A...678A.200D  

 

TOI-178c does not have an entry in the catalogue of orbital obliquity measurements.

 


Page generated on 2024/03/28           John Southworth   (Keele University, UK)