WUMaCat

Simbad link	U Peg
Source publication	Djurašević, G. (2001) - A photometric study of the W UMa-type system U Pegasi
ADS link	2001A&A...367..840D
Name in Source publication	U Peg
Orbital period in days (P [d])	0.37478
Mass ratio (q)	0.33
Mass ratio determination	Spectroscopic
Type	W
Has total eclipse?
Has spots?
Has third light?
Has period variation?

Solver	DC
Orbital period in days (P [d])	0.37478
Mass ratio (q)	0.33
Orbital inclination in degrees (i [^o])	76.1
Fillout (f)	0.15
Primary temperature in Kelvins (T₁ [K])	5600
Secondary temperature in Kelvins (T₂ [K])	5800
Primary polar radius in units of orbital separation (r_1p)	0.4541
Secondary polar radius in units of orbital separation (r_2p)	0.2749
Surface potential (Ω)	2.5036

Orbital separation in solar radii (a [R])	2.53
Primary radius in solar units (R₁ [R])	1.23
Secondary radius in solar units (R₂ [R])	0.75
Primary mass in solar units (M₁ [M])	1.17
Secondary mass in solar units (M₂ [M])	0.39
Primary temperature in kelvins (T₁ [K])	5600
Secondary temperature in Kelvins (T₂ [K])	5800
Primary luminosity in solar units (L₁ [L])	1.29
Secondary luminosity in solar units (L₂ [L])	0.55
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr])	5.02

U Peg