Query= V471 TAU GCVS Query forms

NNo GCVS J2000.0 Type Max Min I Min II Epoch(JD24..) Year Period M-m/D Spectrum References Other design.

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780471 |V0471 Tau *|035025.0+171447 |EA/D/RS+X | 9.40 | 9.71 | |V |45612.38065 | | 0.52118301 |06 |K0Vea+DA |10059 05120|

------------------------------------------------------------------------------------------------------------------------------------------------------------------ ______________The positional information: ___________________________

NNo GCVS J2000.0 p.m.(as/yr) Epoch Ident.

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780471 |V0471 Tau |035024.97 +171447.4 |+0.130 -0.023|2000.0 | |Hip

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_______________Cross-identifications:_______________

V0471 Tau = BD +16 0516 |

V0471 Tau = G 007-023 |

V0471 Tau = GSC 1252.00212 |

V0471 Tau = Hip 017962 |

V0471 Tau = WD 0347+171 |

V0471 Tau = X 03476+171 |

____________________________________________________ Reference to a chart or photograph:

05120. H.L.Giclas, R.Burnham, N.G.Thomas, Lowell Publ, N118, 1962.

Reference to a study of the star:

10059. C.Ibanoglu, S.Evren, IBVS N2573, 1984.

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Remark:

    The member of the Hyades cluster. mu alpha =  + 0.117",

    mu delta = -0.020".

    EA/D/(RS + WD) + XP. d = 0.0625P.

    There occurs a total eclipse of the white dwarf in

    Min I (A = 0.04m V, 0.36m U).

    P var. Min I = 2440612.67083 + 0.52118321d*E

    (JD2440570 - 970) [06250]; Min I = 2440898.80038 +

    0.52118376d*E (JD2440880 - 41360), Min I =

    2441665.46153 + 0.52118329d*E (JD2441660 -

    42100) [10058]; since JD2441900 - see Table.

    Wave-like distorsion with the amplitude from 0.05m

    up to 0.27m and with the period close to the orbital

    one is observed in the light curve outside eclipses;

    sometimes there are also flares. The wave is migrating on

    phase in the direction of phase decreasing

    with a migration period of 191d [10060] or ~250d

    [10061]. The period of white dwarf rotation derived

    through X-ray observations Ppuls = 554.73s [10062].

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