Table 1: Observational diary: the data sources, number of points in each curve, passband (effective central wavelength in nm), time interval in Julian date minus 2 400 000, and year of observation. Vienna V and B refer to the light curves obtained at Vienna Observatory, the Cereda B and V curves are by Cereda et al. (1988), $H_{{\rm p}}$ refers to the Hipparcos $H_{{\rm p}}$ -band data centered $\approx$ 500 nm and the Tycho BV data described and analyzed by ZW03, DAO indicates the Lu (1993) radial velocity curves, and Asiago stands for the Asiago Observatory radial velocities from the Ca triplet region (ZW03).
Data set n $\lambda$ $t_{\min }$ $t_{\max }$ year

Vienna V 1201 550 45359.3 45657.6 1983

Vienna B 266 440 45662.3 45663.5 1983

Cereda B 240 440 46775.5 46802.6 1986/87

Cereda V 235 550 46775.5 46802.6 1986/87

$H_{{\rm p}}$ 61 500 47963.7 48486.5 1990-1993

DAO RV₁₊₂ 28 505 48187.0 48312.9 1991/92

Asiago RV₁₊₂ 34 861 51153.5 51626.4 1998-2000

**Table 1:** Observational diary: the data sources, number of points in each curve, passband (effective central wavelength in nm), time interval in Julian date minus 2 400 000, and year of observation. Vienna V and B refer to the light curves obtained at Vienna Observatory, the Cereda B and V curves are by Cereda et al. (1988), $H_{{\rm p}}$ refers to the Hipparcos $H_{{\rm p}}$ -band data centered $\approx$ 500 nm and the Tycho BV data described and analyzed by ZW03, DAO indicates the Lu (1993) radial velocity curves, and Asiago stands for the Asiago Observatory radial velocities from the Ca triplet region (ZW03).
Data set	n	$\lambda$	$t_{\min }$	$t_{\max }$	year
Vienna V	1201	550	45359.3	45657.6	1983
Vienna B	266	440	45662.3	45663.5	1983
Cereda B	240	440	46775.5	46802.6	1986/87
Cereda V	235	550	46775.5	46802.6	1986/87
$H_{{\rm p}}$	61	500	47963.7	48486.5	1990-1993
DAO RV₁₊₂	28	505	48187.0	48312.9	1991/92
Asiago RV₁₊₂	34	861	51153.5	51626.4	1998-2000

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