TEPCat: TOI-778


 

This page summarises the information held within TEPCat for the transiting planetary system TOI-778. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2023AJ....165..207C  
Date of discovery paper 2022 / 12 / 19 y / m / d
Data/telescope used for discovery TESS  
Right ascension 13 17 20.19 h m s
Declination −15 16 24.9 d m s
Right ascension (decimal) 199.33413 degrees
Declination (decimal) -15.27358 degrees
V-band apparent magnitude 9.11 mag
K-band apparent magnitude 8.06 mag
Transit duration 0.157
( 3.77 )
day
hour
Transit depth 0.7 %
Time of mid-transit   2458578.7161 ± 0.0001     HJD or BJD
Orbital period 4.633611 ± 0.000001 days
Reference for orbital ephemeris   2023AJ....165..207C  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6643 ± 150 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.00 ± 0.08 dex
Stellar mass 1.40 ± 0.05   Msun
Stellar radius 1.71 ± 0.05 Rsun
Stellar logarithmic surface gravity 4.05 +0.17 −0.q7 c.g.s.
Stellar mean density 0.28 ± 0.02
( 0.395 ± 0.028 )
ρsun
g cm-3
Orbital eccentricity 0.21 ± 0.04  
Orbital semimajor axis   0.060 ± 0.003  AU
Planetary mass 2.8 ± 0.2
( 890 ± 63 )
Mjup
Mearth
Planetary radius 1.37 ± 0.04
( 15.36 ± 0.45 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 1.0 ± 0.2
( 1.33 ± 0.27 )
ρjup
g cm-3
Planetary equilibrium temperature 1561 +33 −32 K
Reference of detailed study 2023AJ....165..207C  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Clark et al. (2023)   18   ±   11  

 

 


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