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AAVSO Special Notice #231

T Pyx Observations Requested


February 1, 2011: Sumner Starrfield (Arizona State University) has informed us that Chandra is currently observing the cataclysmic variable T Pyx.  He and his colleagues would like supporting optical monitoring of the star during the visitation.  One visit is happening now; the next and final visit will occur on February 5 (UT).

T Pyx is typically about 15th magnitude in quiescence. Few observations have been recently submitted to the AAVSO, but they all show the star at quiescence.  If you can get a time series with a standard Johnson/Cousins filter with S/N=50 or so, that would be best; second best is to observe unfiltered.  Visual observations, especially those with positive detections, are also encouraged.  This is an excellent target for our southern hemisphere observers.

Coordinates: RA 09:04:41.50    Dec. -32:22:47.5 (J2000.0)

Arne

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