TEPCat: TOI-178b


 

This page summarises the information held within TEPCat for the transiting planetary system TOI-178b. 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 0.0710
( 1.704 )
day
hour
Transit depth 0.025 %
Time of mid-transit   2458741.6365 ± 0.0037     HJD or BJD
Orbital period 1.914554 ± 0.000017 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  
Orbital semimajor axis   0.02609 +0.00031 −0.00034  AU
Planetary mass 0.0047 +0.0012 −0.0014
( 1.49 +0.38 −0.45 )
Mjup
Mearth
Planetary radius 0.1018 ± 0.0052
( 1.141 ± 0.058 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 4.1 +1.5 −1.3
( 5.4 +2.0 −1.7 )
ρjup
g cm-3
Planetary equilibrium temperature 1040 +22 −21 K
Reference of detailed study 2023A+A...678A.200D  

 

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

 


Page generated on 2024/04/19           John Southworth   (Keele University, UK)