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
Right ascension 09 50 19.20 h m s
Declination −66 06 49.9 d m s
V-band apparent magnitude 8.19 mag
K-band apparent magnitude 7.75 mag
Transit duration 0.165
( 3.96 )
day
hour
Transit depth 0.5 %
Time of mid-transit   2458505.817 ± 0.003     HJD or BJD
Orbital period 2.84206 ± 0.00003 days
Reference for orbital ephemeris   arXiv:1904.02733  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 7800 ± 200 K
Stellar metal abundance ([Fe/H] or [M/H])   0 dex
Stellar mass 1.75 ± 0.05   Msun
Stellar radius 1.92 ± 0.11 Rsun
Stellar logarithmic surface gravity 4.1 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.047 ± 0.004  AU
Planetary mass 3.1 ± 0.9
( 985 ± 286 )
Mjup
Mearth
Planetary radius 1.53 +0.07 −0.04
( 17.15 + 0.78 − 0.45 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature 2100 ± 100 K
Reference of detailed study arXiv:1904.02733  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Dorval et al. (2019)   247.5   + 1.5   - 1.7  

 

 

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

 


Page generated on 2019/07/16           John Southworth   (Keele University, UK)