WUMaCat

Simbad link	V1918 Cyg
Source publication	Gürol, B. (2016) - Absolute and geometric parameters of contact binary V1918 Cyg
ADS link	2016NewA...47...57G
Name in Source publication	V1918 Cyg
Orbital period in days (P [d])	0.413177
Mass ratio (q)	0.28
Mass ratio determination	Spectroscopic
Type	A
Has total eclipse?
Has spots?
Has third light?
Has period variation?

Solver	WD
Orbital period in days (P [d])	0.413177
Mass ratio (q)	0.28
Orbital inclination in degrees (i [^o])	80.5
Fillout (f)	0.31
Primary temperature in Kelvins (T₁ [K])	7300
Secondary temperature in Kelvins (T₂ [K])	6784
Primary polar radius in units of orbital separation (r_1p)	0.4733
Secondary polar radius in units of orbital separation (r_2p)	0.2681
Surface potential (Ω)	2.3639

Orbital separation in solar radii (a [R])	2.77
Primary radius in solar units (R₁ [R])	1.36
Secondary radius in solar units (R₂ [R])	0.76
Primary mass in solar units (M₁ [M])	1.3
Secondary mass in solar units (M₂ [M])	0.36
Primary temperature in kelvins (T₁ [K])	7300
Secondary temperature in Kelvins (T₂ [K])	6784
Primary luminosity in solar units (L₁ [L])	4.72
Secondary luminosity in solar units (L₂ [L])	1.1
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr])	3.79

V1918 Cyg