Query= DD LAC 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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450127 |DD Lac *|224128.6+401332 |BCEP | 5.16 | 5.28 | |V |43063.774 | | 0.1930924 |50 |B1.5III |00001 BD |

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

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

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450127 |DD Lac |224128.65 +401331.6 |-0.001 -0.006|2000.0 | |Hip

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_______________Cross-identifications:_______________

DD Lac = BD +39 4912 |

DD Lac = BS 08640 |

DD Lac = FLM Lac 012 |

DD Lac = GSC 3218.02413 |

DD Lac = HD 214993 |

DD Lac = Hip 112031 |

DD Lac = SAO 072627 |

____________________________________________________ Reference to a chart or photograph:

BD Bonner Durchmusterung, F.W.A. Argelander, Bonner Sternverzeichniss, 1 bis 4 sektion, Astronomische Beobachtungen auf der Sternwarte de Kgl. Rhein/ Friedrich-Wilhelms-Unviersiaet zu Bonn (CDS Cat. I/122).

Reference to a study of the star:

00001. GCVS compilers.

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Remark:

    VB A (B 9.2m, 69", 16deg).  P var. Max = 2421914.178 +

    0.19309018d*E - 0.001798d*10**(-8)*E**2 (JD2421400 -

    37600) [05711]; since JD2443000 - see Table.

    According to [09337] simultaneously the pulsations with

    the following periods are observed (the corresponding AB

    values are given in the brackets): P1 = 0.193082d (0.080m),

    P2 = 0.197382d (0.034m), P3 = 0.182115d (0.020m),

    P4 = 0.187438d (0.016m), P5 = 0.095109d (0.010m),

    P6 = 0.23583d (0.008m). A var; 0.04m <= A <= 0.12m.

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