Dear dwarf nova fans,
According to IBVS No. 4343 (S.V. Antipin), a dwarf nova was discovered in the xi CrB field.
Var21 16h 00m 03s.7 +33o 11' 15" (J2000.0) UG 14.5-(17.5p
The object has two types of outbursts, short ones and long (>15d) ones, though the data suggest the shorter ones are not necessarily fainter. The duty cycle amounts to ~20%. Won't someone add this to his or her monitoring program?
chart based on GSC
chart based on GSC, enlarged
Chart from Iida's unfiltered CCD image
Note that the magnitudes are only approximate.
The outburst alert
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