V789 Her

Simbad link V789 Her
Source publication Li, K. (2018) - Photometric Study of Two Totally Eclipsing Contact Binaries: V789 Her and V1007 Cas
ADS link 2018PASP..130g4201L
Name in Source publication V789 Her
Orbital period in days (P [d]) 0.320045
Mass ratio (q) 0.24
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]) 0.320045
Mass ratio (q) 0.24
Orbital inclination in degrees (i [o]) 78.2
Fillout (f) 0.24
Primary temperature in Kelvins (T1 [K]) 5005
Secondary temperature in Kelvins (T2 [K]) 5470
Primary polar radius in units of orbital separation (r1p) 0.4827
Secondary polar radius in units of orbital separation (r2p) 0.2528
Surface potential (Ω) 2.2837

Orbital separation in solar radii (a [R]) 2.2
Primary radius in solar units (R1 [R]) 1.15
Secondary radius in solar units (R2 [R]) 0.62
Primary mass in solar units (M1 [M]) 1.13
Secondary mass in solar units (M2 [M]) 0.27
Primary temperature in kelvins (T1 [K]) 5005
Secondary temperature in Kelvins (T2 [K]) 5470
Primary luminosity in solar units (L1 [L]) 1.48
Secondary luminosity in solar units (L2 [L]) 0.43
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr]) 4.97

Orbital period in days (P [d]) 0.320045
Monotonic period variation in seconds per year (dPdt [s/y])
Cyclic period variation in years (Pc [y]) 29.2

Simbad link V789 Her
J magnitude 13.495
H magnitude 13.031
K magnitude 12.967
Johnson_U magnitude
Johnson_B magnitude 14.9
Johnson_V magnitude 14.47
Johnson_R magnitude
Johnson_I magnitude
Sloan_u magnitude
Sloan_g magnitude 14.4667
Sloan_r magnitude
Sloan_i magnitude
Sloan_z magnitude

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