[Aavso-photometry] 2 New Observing Objects: AB Nor and ASAS 002511+1217.2

[Chuck Pullen]

Aaron - are you going to do a chart up for the ASAS object?

Chuck Pullen (PCH)

At 12:30 9/15/04 -0400, Aaron Price wrote:


>  Here are two active dwarf novae observing projects, one for each
>hemisphere:
>
>** Southern Observers (and northern observers who can get to -42):
>
>  AB Nor may be in outburst. The timing of this report follows its previous
>outbursting behavior. Take a look and, if it is in outburst, please begin
>taking quality time series observations for *as long as possible*. We need
>to minimize the longitudinal observing gaps between Australlia/NZ, South
>America (we really need South American observations!) and South Africa.
>  Kato published a good paper on this star in MNRAS in January, 2004.
>While he has much of the basic system parameters determined, he mentions
>their coverage still leaves some answers open such as the evolution of
>superhump behavior and calls for more observations. Also, his light curve
>only shows superoutbursts and no confirmed regular outbursts.  This object
>is unique enough with its long orbital period (just below the gap) and low
>outburst rate that it is of some interest to the general community. So any
>data is helpful.
>
>   1542-42  AB NOR (UGSU):
>     SEP 15.4610    15.0   SRX  Y      STUBBINGS, ROD   AUSTRALIA
>
>  We have no online charts for AB Nor so just do the best you can and get
>data as soon as possible. We'll come up with some comp stars soon. The
>location is:       ra=15 49 15.48   dec=-43 04 48.7
>
>** Northern Observers:
>
>  - ASAS 002511+1217.2 (00 25 11 +12 17 12, Eqnx 2000)
>
>    Grzegorz Pojmanski reports it may be a new bright dwarf nova:
>  Observations:           V
>  HJD (2450000+)   AP_0   AP_1
>  3254.86329      (invisible)
>  3259.70301      12.463 10.487
>  3263.79241      11.074 11.076
>  3263.79528      11.115 11.101
>
>It is unclear whether it is past maximum or now. Time series observations
>unfiltered or in V would be very useful. Try to go as long as possible.
>
>
>Aaron
>
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