V400 Lyr

Simbad link V400 Lyr
Source publication Long, Liu (2019) - Spectroscopic and photometric studies of four W UMa-type eclipsing binaries
ADS link 2019MNRAS.487.5520L
Name in Source publication V400 Lyr
Orbital period in days (P [d]) 0.253426
Mass ratio (q) 0.27
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]) 0.253426
Mass ratio (q) 0.27
Orbital inclination in degrees (i [o]) 87.9
Fillout (f) 0.25
Primary temperature in Kelvins (T1 [K]) 4833
Secondary temperature in Kelvins (T2 [K]) 5152
Primary polar radius in units of orbital separation (r1p) 0.4734
Secondary polar radius in units of orbital separation (r2p) 0.2637
Surface potential (Ω) 2.3568

Orbital separation in solar radii (a [R]) 2.54
Primary radius in solar units (R1 [R])
Secondary radius in solar units (R2 [R])
Primary mass in solar units (M1 [M]) 2.92
Secondary mass in solar units (M2 [M]) 0.79
Primary temperature in kelvins (T1 [K]) 4833
Secondary temperature in Kelvins (T2 [K]) 5152
Primary luminosity in solar units (L1 [L])
Secondary luminosity in solar units (L2 [L])
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr])

Orbital period in days (P [d]) 0.253426
Monotonic period variation in seconds per year (dPdt [s/y]) -0.017798
Cyclic period variation in years (Pc [y])

Simbad link V400 Lyr
J magnitude 11.481
H magnitude 11.015
K magnitude 10.898
Johnson_U magnitude
Johnson_B magnitude
Johnson_V magnitude
Johnson_R magnitude
Johnson_I magnitude
Sloan_u magnitude
Sloan_g magnitude 12.8205
Sloan_r magnitude
Sloan_i magnitude
Sloan_z magnitude

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