WUMaCat

Simbad link	HV UMa
Source publication	Csák, B. (2000) - HV Ursae Majoris, a new contact binary with early-type components
ADS link	2000A&A...356..603C
Name in Source publication	HV UMa
Orbital period in days (P [d])	0.355385
Mass ratio (q)	0.19
Mass ratio determination	Spectroscopic
Type	W
Has total eclipse?
Has spots?
Has third light?
Has period variation?

Solver	Bynsyn
Orbital period in days (P [d])	0.355385
Mass ratio (q)	0.19
Orbital inclination in degrees (i [^o])	57.3
Fillout (f)	0.77
Primary temperature in Kelvins (T₁ [K])	7000
Secondary temperature in Kelvins (T₂ [K])	7910
Primary polar radius in units of orbital separation (r_1p)	0.5141
Secondary polar radius in units of orbital separation (r_2p)	0.2566
Surface potential (Ω)	2.1141

Orbital separation in solar radii (a [R])	5
Primary radius in solar units (R₁ [R])	2.62
Secondary radius in solar units (R₂ [R])	1.18
Primary mass in solar units (M₁ [M])	2.8
Secondary mass in solar units (M₂ [M])	0.2
Primary temperature in kelvins (T₁ [K])	7000
Secondary temperature in Kelvins (T₂ [K])	7910
Primary luminosity in solar units (L₁ [L])	14.8
Secondary luminosity in solar units (L₂ [L])	4.89
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr])	0.91

HV UMa