TEPCat: NGTS-19


 

This page summarises the information held within TEPCat for the transiting brown dwarf system NGTS-19. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2105.08574  
Date of discovery paper 2021 / 5 / 19 y / m / d
Right ascension 15 16 31.60 h m s
Declination −25 42 17.2 d m s
V-band apparent magnitude 14.12 mag
K-band apparent magnitude 11.70 mag
Transit duration 0.17
( 4.1 )
day
hour
Transit depth 1.4 %
Time of mid-transit   2458533.0207 ± 0.0011     HJD or BJD
Orbital period 17.839654 ± 0.000038 days
Reference for orbital ephemeris   arXiv:2105.08574  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4716 +39 −28 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.11 +0.074 −0.070 dex
Stellar mass 0.807 +0.038 −0.043   Msun
Stellar radius 0.896 +0.040 −0.035 Rsun
Stellar logarithmic surface gravity 4.571 +0.102 −0.093 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.3767 ± 0.0061  
Orbital semimajor axis   0.1296 +0.074 −0.072  AU
Planetary mass 69.5 +5.7 −5.4
( 22093 +1812 −1717 )
Mjup
Mearth
Planetary radius 1.034 +0.055 −0.053
( 11.59 + 0.62 − 0.59 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 58 +13 −10
( 76 +17 −13 )
ρjup
g cm-3
Planetary equilibrium temperature 543 +17 −16 K
Reference of detailed study arXiv:2105.08574  

 

NGTS-19 does not have an entry in the catalogue of orbital obliquity measurements.

 

NGTS-19 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)