TEPCat: MASCARA-4


 

This page summarises the information held within TEPCat for the transiting planetary system MASCARA-4. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1904.02733  
Date of discovery paper 2019 / 4 / 8 y / m / d
Data/telescope used for discovery MASCARA  
Right ascension 09 50 19.20 h m s
Declination −66 06 49.9 d m s
Right ascension (decimal) 147.58000 degrees
Declination (decimal) -66.11386 degrees
V-band apparent magnitude 8.19 mag
K-band apparent magnitude 7.75 mag
Transit duration 0.1654
( 3.970 )
day
hour
Transit depth 0.5 %
Time of mid-transit   2458909.66419 ± 0.00046     HJD or BJD
Orbital period 2.8240932 ± 0.0000046 days
Reference for orbital ephemeris   arXiv:2208.11427  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 7810 ± 165 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.17 ± 0.12 dex
Stellar mass 1.75 ± 0.05   Msun
Stellar radius 1.79 ± 0.04 Rsun
Stellar logarithmic surface gravity 4.10 ± 0.05 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0474 ± 0.0013  AU
Planetary mass 1.68 ± 0.24
( 534 ± 76 )
Mjup
Mearth
Planetary radius 1.515 ± 0.044
( 16.98 ± 0.49 )
Rjup
Rearth
Planetary surface gravity 18.1 ± 2.9
3.26 ± 0.06
m/s2
log(cgs)
Planetary mean density 0.481 +0.085 −0.079
( 0.64 +0.11 −0.10 )
ρjup
g cm-3
Planetary equilibrium temperature 2250 ± 62 K
Reference of detailed study arXiv:2208.11427  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Dorval et al. (2019)   247.5   + 1.5   - 1.7  
Ahlers et al. (2019)   244   ±   15  
Zhang et al. (2022)   250.34   ±   0.14  

 

 

MASCARA-4 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2022/12/01           John Southworth   (Keele University, UK)