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Optical outburst of BL Lacertae object OT 081

ATEL # 2799; V.M.Larionov, D.A.Blinov, E.V.Borisova, A.V.Markelova (St.Petersburg University, Russia)
on 17 Aug 2010; 19:55 UT
Password Certification: V.Larionov (

Subjects: Optical, Request for Observations

We are conducting optical photometric and polarimetric monitoring of selected blazars. We report that BL Lacertae object OT 081 (=4C 09.57, PKS 1749+096) shows prominent activity. Its brightness increased by ~3 mag from UT 2010 Aug 06 to Aug 17 19:40, reaching R=15.22. Polarization level have shown a sharp maximum of ~40% during the night of Aug 16 and decrease to moderate 17% next night. Multifrequency observations of this object are encouraged.

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