V2787 Ori

Simbad link V2787 Ori
Source publication Tian, Xiao-man (2019) - Am-Type Eclipsing Binary V2787 Ori: An Evolved Shallow-contact Binary with an Extremely Low Mass Ratio
ADS link 2019PASP..131h4203T
Name in Source publication V2787 Ori
Orbital period in days (P [d]) 0.810979
Mass ratio (q) 0.12
Mass ratio determination Photometric
Type A
Has total eclipse?
Has spots?
Has third light?
Has period variation?

Solver WD
Orbital period in days (P [d]) 0.810979
Mass ratio (q) 0.12
Orbital inclination in degrees (i [o]) 84.7
Fillout (f) 0.18
Primary temperature in Kelvins (T1 [K]) 6993
Secondary temperature in Kelvins (T2 [K]) 5393
Primary polar radius in units of orbital separation (r1p) 0.5267
Secondary polar radius in units of orbital separation (r2p) 0.2051
Surface potential (Ω) 2.0048

Orbital separation in solar radii (a [R]) 4.29
Primary radius in solar units (R1 [R]) 2.45
Secondary radius in solar units (R2 [R]) 0.96
Primary mass in solar units (M1 [M]) 1.44
Secondary mass in solar units (M2 [M]) 0.17
Primary temperature in kelvins (T1 [K]) 6993
Secondary temperature in Kelvins (T2 [K]) 5393
Primary luminosity in solar units (L1 [L]) 12.93
Secondary luminosity in solar units (L2 [L]) 0.71
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr]) 4.06

Orbital period in days (P [d]) 0.810979
Monotonic period variation in seconds per year (dPdt [s/y])
Cyclic period variation in years (Pc [y]) 17.3

Simbad link V2787 Ori
J magnitude 9.578
H magnitude 9.404
K magnitude 9.359
Johnson_U magnitude
Johnson_B magnitude 10.53
Johnson_V magnitude 10.27
Johnson_R magnitude 10.16
Johnson_I magnitude
Sloan_u magnitude
Sloan_g magnitude 10.1984
Sloan_r magnitude 10.16
Sloan_i magnitude
Sloan_z magnitude

Back to List