Query= TT ARI 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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070027 |TT Ari *|020653.1+151742 |NL | 10.2 | 16.5 | |V | | | | |pec(e) |N0137 72085|

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

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

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070027 |TT Ari |020653.09 +151741.8 |-0.007 -0.030|2000.0 | |Tyc2

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_______________Cross-identifications:_______________

TT Ari = BD +14 0341 |

TT Ari = X 02042+151 |

____________________________________________________ Reference to a chart or photograph:

72085. Downes, R.A., Shara, M.M., 1993, PASP, 105, No. 684, 127 {1993PASP..105..127D}

Reference to a study of the star:

N0137. Z. Kraicheva, V. Stanishev, L. Iliev et al., AsAp Suppl, 122, No. 1, 123, 1997.

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Remark:

    Porb = 0.13755d. Usually near maximum brightness, occasional

    deep fadings. Numerous photometric periods were reported.

    According to [N0138], the star experiences alternating

    "negative superhump" (P = 0.13270 - 0.1398d) and "positive

    superhump" (P = 0.14840 - 0.14926d) intervals, with amplitudes

    of several tenths of a magnitude. Quasiperiodic oscilations,

    flickering.

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