Rare Bright Outburst of 1137+72 DO Draconis (= YY Draconis)

Details Rare Bright Outburst of 1137+72 DO Draconis (= YY Draconis) Rare Bright Outburst of 1137+72 DO Draconis (= YY Draconis)

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aan...231....1m&link_type=abstract

AAVSO Alert Notice 231

Physics

Do Dra, Yy Dra, Cataclysmic Variable, Aavso International Database, Superhumps

Scientific paper

A rare bright outburst of the cataclysmic variable DO Dra is reported. Previous bright outbursts were reported to the AAVSO in March 1988 and September 1990; each outburst lasted 5 days and the star reached approximately visual magnitude 10.0. Minor, faint (to magnitude 14.0-14.5) outbursts have also been reported. The outburst behavior suggests that DO Dra may be an SU UMa type dwarf nova, although the 5-day duration of outbursts is too short for superoutbursts. CCD observations every 3 to 5 minutes are requested to search for superhumps.

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