GCVS Query forms

Query= IU AUR 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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080238 |IU Aur *|052752.4+344658 |EB | 8.19 | 8.89 | 8.74 |V |38448.4068 | | 1.81147435 | |B0p+B1Vp |N0175 HIP |

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

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

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080238 |IU Aur |052752.40 +344658.3 |+0.001 +0.000|2000.0 | |Hip

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_______________Cross-identifications:_______________

IU Aur = BD +34 1051 |

IU Aur = GSC 2411.01941 |

IU Aur = HD 035652 |

IU Aur = Hip 025565 |

IU Aur = SAO 058059 |

____________________________________________________ Reference to a chart or photograph:

HIP The Hipparcos and Tycho Catalogues (European Space Agency, 1997), ESA SP-1200 (CDS Cat. I/239).

Reference to a study of the star:

N0175. P. Mayer, BAC 38, No. 1, 58, 1987.

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Remark:

    Min II =  8.74 .

    A well-documented light-time effect (P = 294.3d, the semi-amplitude

    of the O-C residuals is 0.0059d) because of a third body on

    an eccentric orbit. Precession causes changes of the brightness

    amplitude: the amplitude of the MinI was observed to vary between

    0.46m and 0.70m and that of MinII, between 0.37m and 0.55m. The

    depths of minima reached their maximum values about JD 2445800

    and began to decrease [N0176].

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