SDSS J012119.10-001949.9

Simbad link	SDSS J012119.10-001949.9
Source publication	Jiang, Lin-Qiao (2015) - SDSS J012119.10-001949.9: a very short period M dwarf contact binary from SDSS stripe 82
ADS link	2015RAA....15.2237J
Name in Source publication	SDSS J012119.10-001949.9
Orbital period in days (P [d])	0.2052
Mass ratio (q)	0.5
Mass ratio determination	Photometric
Type	A
Has total eclipse?
Has spots?
Has third light?
Has period variation?

Solver	WD
Orbital period in days (P [d])	0.2052
Mass ratio (q)	0.5
Orbital inclination in degrees (i [^o])	83.9
Fillout (f)	0.22
Primary temperature in Kelvins (T₁ [K])	3840
Secondary temperature in Kelvins (T₂ [K])	3812
Primary polar radius in units of orbital separation (r_1p)	0.4254
Secondary polar radius in units of orbital separation (r_2p)	0.3113
Surface potential (Ω)	2.8111

Orbital separation in solar radii (a [R])	1.34
Primary radius in solar units (R₁ [R])	0.61
Secondary radius in solar units (R₂ [R])	0.45
Primary mass in solar units (M₁ [M])	0.51
Secondary mass in solar units (M₂ [M])	0.26
Primary temperature in kelvins (T₁ [K])	3840
Secondary temperature in Kelvins (T₂ [K])	3812
Primary luminosity in solar units (L₁ [L])	0.07
Secondary luminosity in solar units (L₂ [L])	0.04
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr])

Basic Info