Table 5: Apsidal motion parameters for V636 Cen derived from the photoelectric times of minima.
Parameter Value and rms error
i ($^\circ$) 89.65 (assumed)
e 0.134 (assumed)
T0 $2~447~220.8424 \pm 0.0002 $
$P_{\rm anomalistic}$ (d) $4.283956 \pm 0.0000008$
$P_{\rm sidereal}$ (d) 4.283946
$\omega_0$ ($^\circ$) $281.95 \pm 0.06$
$\omega_1$ ($^\circ$/ cycle) $0.00080 \pm 0.00005$
U (yr) $5270 \pm 335$


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