WUMaCat

Simbad link	V870 Ara
Source publication	Szalai, T. (2007) - Physical parameters and multiplicity of five southern close eclipsing binaries
ADS link	2007A&A...465..943S
Name in Source publication	V870 Ara
Orbital period in days (P [d])	0.399722
Mass ratio (q)	0.08
Mass ratio determination	Spectroscopic
Type	W
Has total eclipse?
Has spots?
Has third light?
Has period variation?

Solver	WD
Orbital period in days (P [d])	0.399722
Mass ratio (q)	0.08
Orbital inclination in degrees (i [^o])	70
Fillout (f)	0.98
Primary temperature in Kelvins (T₁ [K])	5860
Secondary temperature in Kelvins (T₂ [K])	6210
Primary polar radius in units of orbital separation (r_1p)	0.5626
Secondary polar radius in units of orbital separation (r_2p)	0.2003
Surface potential (Ω)	1.849

Orbital separation in solar radii (a [R])	2.59
Primary radius in solar units (R₁ [R])	1.67
Secondary radius in solar units (R₂ [R])	0.61
Primary mass in solar units (M₁ [M])	1.5
Secondary mass in solar units (M₂ [M])	0.12
Primary temperature in kelvins (T₁ [K])	5860
Secondary temperature in Kelvins (T₂ [K])	6210
Primary luminosity in solar units (L₁ [L])	2.96
Secondary luminosity in solar units (L₂ [L])	0.5
Distance in parsecs (d [pc])	107
Age in gigayears (τ [gyr])	3.62

V870 Ara