TEPCat: TOI-852


 

This page summarises the information held within TEPCat for the transiting brown dwarf system TOI-852. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2009.13515  
Date of discovery paper 2020 / 9 / 29 y / m / d
Right ascension 01 38 57.66 h m s
Declination −07 16 51.5 d m s
V-band apparent magnitude 11.76 mag
K-band apparent magnitude 9.88 mag
Transit duration 0.16
( 3.8 )
day
hour
Transit depth 0.2 %
Time of mid-transit   2458387.1888 ± 0.0020     HJD or BJD
Orbital period 4.945613 ± 0.000080 days
Reference for orbital ephemeris   arXiv:2009.13515  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5768 +84 −81 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.334 +0.085 −0.088 dex
Stellar mass 1.32 +0.05 −0.04   Msun
Stellar radius 1.71 ± 0.04 Rsun
Stellar logarithmic surface gravity 4.09 ± 0.04 c.g.s.
Stellar mean density 0.26 +0.02 −0.01
( 0.367 +0.028 −0.014 )
ρsun
g cm-3
Orbital eccentricity 0.0038 +0.0046 −0.0027  
Orbital semimajor axis   0.06303 +0.00075 −0.00067  AU
Planetary mass 53.7 +1.3 −1.2
( 170707 +4133 −3815 )
Mjup
Mearth
Planetary radius 0.75 ± 0.03
( 8.41 ± 0.34 )
Rjup
Rearth
Planetary surface gravity 2400 +200 −180
5.38 +0.03 −0.03
m/s2
log(cgs)
Planetary mean density 121 +15 −14
( 160 + 19 − 18 )
ρjup
g cm-3
Planetary equilibrium temperature 1448 +20 −19 K
Reference of detailed study arXiv:2009.13515  

 

TOI-852 does not have an entry in the catalogue of orbital obliquity measurements.

 

TOI-852 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2021/12/02           John Southworth   (Keele University, UK)