Special Notice #296: Outburst of the BL Lac object 4C 11.69 == CTA 102
October 6, 2012: The BL Lac object 4C 11.69 (== CTA 102) was discovered in bright outburst by V. Larionov, D. Blinov, and S. Jorstad (St.
quasar
Special Notice #278: Bright flaring of Blazar OJ 287
April 22, 2012: The blazar OJ 287 (Cancer) has brightened from its low optical state to its high state and is flaring. The Astronomer's Telegram #4057 (S. Zola et al., http://www.astronomerstelegram.org/?read=4057) reports very high optical activity.
Observations of OJ 287 in the AAVSO International Database may be
viewed (http://www.aavso.org/ql),
plotted (http://www.aavso.org/lcg), or
Special Notice #223: BL Lac object 3C 454.3 undergoing bright flare
November 18, 2010: As was noted by AAVSO observer E. Erdelyi (Carlsbad, CA, USA) in a post to cvnet-discussion, the BL Lac object 3C 454.3 (AUID 000-BDC-612) appears to be undergoing a bright flare; the object was recorded by Erdelyi at V=13.659(0.013) on 2010 November 10.2708 (JD 2455510.7708). The last flare of comparable brightness was observed in 2007, when the object reached V ~ 13.4 around JD 2454335 (late August 2007).
Blazars
What are blazars?
The AAVSO International High Energy Network
High Energy Network Observing Section
Section Leader: Dave Hinzel Contact