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[vsnet-chat 6238] Re: R Aquilae chart... and others

Re: [vsnet-chat 6237] R Aquilae chart... and others

> Unbelievable. Between the 76 and 78 comparison stars there is almost a full
> magnitude difference and not just 0.2. One of the "85"s is actually 9.65
> !!!!
> I can imagine a false standstill when the star is between 7.6 and 7.8....
> And if someone goes on to determine the limitting magnitude of his/her
> binoculars, stars that are supposedly easy to find, won't even be observed
> at all !!
> Errors are not systematically bound to colors or a zero-point problem. They
> are random so the resulting lightcurve is not truly representative of this
> very important mira.

   The existing light curve of R Aql indeed have "anomalies" likely
attributable to these sequnce problems:

   Premaximum halt around mag 8.5:

  20010416.000  8.63  (Ryszard Cnota)
  20010418.000  8.63  (Ryszard Cnota)
  20010426.000  8.63  (Ryszard Cnota)
  20010428.000  8.59  (Ryszard Cnota)

   Standstill:

  20010429.899    86  (Robert Ricza)
  20010429.994    87  (Stanislaw Swierczynski)
  20010814.003    77  (Alfons Diepvens)
  20010814.516    74  (Taichi Kato)
  20010814.574    75  (Yoshiko Sugai)
  20010814.890    76  (Reinder J. Bouma)
  20010814.900    74  (Hartmut Goldhahn)
  20010815.800    77  (Robert Ricza)
  20010815.900    79  (Ryszard Cnota)
  20010816.580    78  (Yoshiko Sugai)
  20010816.840    77  (Georg Comello)
  20010816.876    76  (Erhan Eker)
  20010816.899    78  (Hartmut Goldhahn)
  20010817.516    77  (Taichi Kato)
  20010817.613    78  (Yoshiko Sugai)
  20010818.544    78  (Takuichiro Onishi)
  20010818.640    77  (Taichi Kato)
  20010818.899    81  (Ryszard Cnota)
  20010820.830    78  (Georg Comello)
  20010821.019    78  (Sebastian Otero)
  20010822.449    80  (Taichi Kato)
  20010823.447    78  (Susumu Takahashi)
  20010823.899    81  (A. Conu)
  20010823.899    81  (Hartmut Goldhahn)
  20010824.455    78  (Susumu Takahashi)
  20010824.883    80  (Stanislaw Swierczynski)
  20010824.899    81  (A. Conu)
  20010824.899    81  (Hartmut Goldhahn)
  20010825.221    76  (Mike Simonsen)
  20010825.560    78  (Susumu Takahashi)
  20010825.601    79  (Masaru Ooishi)
  20010825.800    80  (Robert Ricza)
  20010825.840    83  (Georg Comello)
  20010825.844    81  (Alfons Diepvens)
  20010825.899    83  (A. Conu)
  20010826.800    82  (Ryszard Cnota)

Regards,
Taichi Kato

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