2MASS J20040017+4414033

Simbad link	2MASS J20040017+4414033
Source publication	Joshi, Yogesh Chandra (2016) - Photometric studies of two W UMa type variables in the field of distant open cluster NGC 6866
ADS link	2016RAA....16...63J
Name in Source publication	Star ID 0494
Orbital period in days (P [d])	0.41511
Mass ratio (q)	0.5
Mass ratio determination	Photometric
Type	W
Has total eclipse?
Has spots?
Has third light?
Has period variation?

Solver	WD
Orbital period in days (P [d])	0.41511
Mass ratio (q)	0.5
Orbital inclination in degrees (i [^o])	68.4
Fillout (f)	0.48
Primary temperature in Kelvins (T₁ [K])	4805
Secondary temperature in Kelvins (T₂ [K])	5026
Primary polar radius in units of orbital separation (r_1p)	0.4396
Secondary polar radius in units of orbital separation (r_2p)	0.3264
Surface potential (Ω)	2.7325

Orbital separation in solar radii (a [R])	2.78
Primary radius in solar units (R₁ [R])	1.22
Secondary radius in solar units (R₂ [R])	0.81
Primary mass in solar units (M₁ [M])	1.2
Secondary mass in solar units (M₂ [M])	0.47
Primary temperature in kelvins (T₁ [K])	4805
Secondary temperature in Kelvins (T₂ [K])	5026
Primary luminosity in solar units (L₁ [L])	1.62
Secondary luminosity in solar units (L₂ [L])	0.72
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr])	4.6

Basic Info