TYC 3801-1529-1

Simbad link	TYC 3801-1529-1
Source publication	Poro, Atila (2026) - Detailed Investigation of a W UMa Contact Binary with an Ultralow Mass Ratio and a Third Body as a Potential Merger Candidate
ADS link	2026ApJ...998..108P
Name in Source publication	TYC 3801-1529-1
Orbital period in days (P [d])	0.365916
Mass ratio (q)	0.02
Mass ratio determination	Photometric
Temperature determination	Unknown
Type	A
Has total eclipse?
Has spots?
Has third light?
Has period variation?
Search TESS catalog of Eclipsing Binaries	TIC 445065429

Solver	BSN
Orbital period in days (P [d])	0.365916
Mass ratio (q)	0.02
Orbital inclination in degrees (i [^o])	64.3
Fillout (f)	0.32
Primary temperature in Kelvins (T₁ [K])	6009
Secondary temperature in Kelvins (T₂ [K])	5871
Primary polar radius in units of orbital separation (r_1p)
Secondary polar radius in units of orbital separation (r_2p)
Surface potential (Ω)	1.67

Orbital separation in solar radii (a [R])	2.76
Primary radius in solar units (R₁ [R])	1.88
Secondary radius in solar units (R₂ [R])	0.38
Primary mass in solar units (M₁ [M])	2.1
Secondary mass in solar units (M₂ [M])	0.05
Primary temperature in kelvins (T₁ [K])	6009
Secondary temperature in Kelvins (T₂ [K])	5871
Primary luminosity in solar units (L₁ [L])	4.13
Secondary luminosity in solar units (L₂ [L])	0.15
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr])

Basic Info