OU Vir outburst! The eclipsing SU UMa-type dwarf nova OU Vir = LBQS 1432-0033 is reported to be in outburst. The literature position of the object is 14:35:00.14 -00:46:07.0 (J2000.0). YYYYMMDD(UT) mag observer 20030423.229 <147 (Mike Simonsen) 20030424.596 <148 (Rod Stubbings) 20030425.599 <149 (Rod Stubbings) 20030427.522 <149 (Rod Stubbings) 20030428.203 <147 (Mike Simonsen) 20030428.569 <150 (Rod Stubbings) 20030429.453 <149 (Rod Stubbings) 20030502.603 <149 (Rod Stubbings) 20030503.276 <148 (Mike Simonsen) 20030504.145 150: (Mike Simonsen) vsnet-obs 44948 20030504.532 150 (Rod Stubbings) vsnet-outburst 5485 Although current outburst may be a normal outburst, follow-up time-resolved photometry (to record both eclipses and potential superhumps) is strongly encouraged. OU Vir is reported to have superhump and orbital periods of 0.078 and 0.073 d (Vanumunster et al. 2000, IBVS 4955; Mason et al. 2002 A&A 396, 633), but the exact periods have not yet been determined to a higher precision. Any kinds of observation will certainly improve our knowledge in this rare eclipsing SU UMa-type star. The following VSNET pages on related objects will be useful in planning your observations: heep://www.kusastro.kyoto-u.ac.jp/vsnet/DNe/xzeri.html heep://www.kusastro.kyoto-u.ac.jp/vsnet/DNe/dvuma9912.html heep://www.kusastro.kyoto-u.ac.jp/vsnet/DNe/tmzv85.html heep://www.kusastro.kyoto-u.ac.jp/vsnet/DNe/htcas.html Regards, Taichi Kato VSNET Collaboration team
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