WUMaCat

Simbad link	HN UMa
Source publication	Oh, K. -D. (2007) - The Low-Mass-Ratio Contact Binaries - V410 Aur, V776 Cas, HN UMa, II UMa
ADS link	2007ASPC..362...82O
Name in Source publication	HN UMa
Orbital period in days (P [d])	0.3826
Mass ratio (q)	0.14
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])	0.3826
Mass ratio (q)	0.14
Orbital inclination in degrees (i [^o])	47.7
Fillout (f)	0.29
Primary temperature in Kelvins (T₁ [K])	6252
Secondary temperature in Kelvins (T₂ [K])	5946
Primary polar radius in units of orbital separation (r_1p)	0.5173
Secondary polar radius in units of orbital separation (r_2p)	0.22
Surface potential (Ω)	2.0617

Orbital separation in solar radii (a [R])	2.84
Primary radius in solar units (R₁ [R])	1.42
Secondary radius in solar units (R₂ [R])	0.61
Primary mass in solar units (M₁ [M])	1.91
Secondary mass in solar units (M₂ [M])	0.19
Primary temperature in kelvins (T₁ [K])	6252
Secondary temperature in Kelvins (T₂ [K])	5946
Primary luminosity in solar units (L₁ [L])	2.72
Secondary luminosity in solar units (L₂ [L])	0.41
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr])	6.05

HN UMa