TEPCat: TOI-1994


 

This page summarises the information held within TEPCat for the transiting brown dwarf system TOI-1994. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2024AJ....167..109P  
Date of discovery paper 2023 / 5 / 16 y / m / d
Data/telescope used for discovery TESS  
Right ascension 09 48 41.91 h m s
Declination −51 45 23.6 d m s
Right ascension (decimal) 147.17462 degrees
Declination (decimal) -51.75656 degrees
V-band apparent magnitude 10.51 mag
K-band apparent magnitude 9.78 mag
Transit duration 0.17
( 4.1 )
day
hour
Transit depth 0.3 %
Time of mid-transit   2459290.01375 ± 0.00082     HJD or BJD
Orbital period 4.0337142 ± 0.000051 days
Reference for orbital ephemeris   2024AJ....167..109P  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 7700 +720 −410 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.01 +0.30 −0.42 dex
Stellar mass 1.86 +0.18 −0.17   Msun
Stellar radius 2.30 +0.13 −0.12 Rsun
Stellar logarithmic surface gravity 3.982 +0.065 −0.067 c.g.s.
Stellar mean density 0.153 +0.033 −0.027
( 0.216 +0.047 −0.038 )
ρsun
g cm-3
Orbital eccentricity 0.341 +0.054 −0.059  
Orbital semimajor axis   0.0613 ± 0.0019  AU
Planetary mass 22.1 +2.6 −2.5
( 70254 +8265 −7947 )
Mjup
Mearth
Planetary radius 1.220 +0.082 −0.071
( 13.67 + 0.92 − 0.80 )
Rjup
Rearth
Planetary surface gravity 366 +72 −61
4.56 +0.08 −0.08
m/s2
log(cgs)
Planetary mean density 11.3 +2.9 −2.4
( 15.0 + 3.8 − 3.2 )
ρjup
g cm-3
Planetary equilibrium temperature 2290 +170 −110 K
Reference of detailed study 2024AJ....167..109P  

 

TOI-1994 does not have an entry in the catalogue of orbital obliquity measurements.

 


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