WUMaCat

Simbad link	HH UMa
Source publication	Yılmaz, M. (2015) - The absolute parameters of two W UMa type binaries in Ursa Majoris
ADS link	2015NewA...34..271Y
Name in Source publication	HH UMa
Orbital period in days (P [d])	0.375494
Mass ratio (q)	0.29
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])	0.375494
Mass ratio (q)	0.29
Orbital inclination in degrees (i [^o])	52.4
Fillout (f)	0.41
Primary temperature in Kelvins (T₁ [K])	6550
Secondary temperature in Kelvins (T₂ [K])	6297
Primary polar radius in units of orbital separation (r_1p)	0.4734
Secondary polar radius in units of orbital separation (r_2p)	0.2775
Surface potential (Ω)	2.379

Orbital separation in solar radii (a [R])	2.58
Primary radius in solar units (R₁ [R])	1.32
Secondary radius in solar units (R₂ [R])	0.78
Primary mass in solar units (M₁ [M])	1.25
Secondary mass in solar units (M₂ [M])	0.37
Primary temperature in kelvins (T₁ [K])	6550
Secondary temperature in Kelvins (T₂ [K])	6297
Primary luminosity in solar units (L₁ [L])	3.03
Secondary luminosity in solar units (L₂ [L])	0.86
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr])	4.62

HH UMa