TEPCat: NGTS-23


 

This page summarises the information held within TEPCat for the transiting planetary system NGTS-23. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2023MNRAS.518.4845J  
Date of discovery paper 2022 / 11 / 3 y / m / d
Data/telescope used for discovery NGTS  
Right ascension 04 41 43.74 h m s
Declination −40 02 40.4 d m s
Right ascension (decimal) 70.43225 degrees
Declination (decimal) -40.04456 degrees
V-band apparent magnitude 14.01 mag
K-band apparent magnitude 12.73 mag
Transit duration 0.1633
( 3.919 )
day
hour
Transit depth 1.0 %
Time of mid-transit   2458431.77134 ± 0.00048     HJD or BJD
Orbital period 4.0764326 ± 0.0000041 days
Reference for orbital ephemeris   2023MNRAS.518.4845J  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6057 ± 64 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.26 ± 0.11 dex
Stellar mass 1.01 +0.06 −0.07   Msun
Stellar radius 1.24 ± 0.03 Rsun
Stellar logarithmic surface gravity 4.04 ± 0.15 c.g.s.
Stellar mean density 0.535 +0.019 −0.024
( 0.755 +0.027 −0.034 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0504 ± 0.0012  AU
Planetary mass 0.613 ± 0.097
( 194 ± 30 )
Mjup
Mearth
Planetary radius 1.267 +0.030 −0.03
( 14.20 + 0.34 − 0.34 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 0.282 +0.053 −0.048
( 0.374 +0.070 −0.064 )
ρjup
g cm-3
Planetary equilibrium temperature 1327 +17 −16 K
Reference of detailed study 2023MNRAS.518.4845J  

 

NGTS-23 does not have an entry in the catalogue of orbital obliquity measurements.

 


Page generated on 2024/05/08           John Southworth   (Keele University, UK)