S. Zola (Jagiellonian University) et al. (ATel #9489) report that the BL Lac object OJ 287 has emerged from conjunction optically very bright and increasing in brightness, according to their observations made at Mt. Suhora Observatory in August and September 2016.
Their observations and recent observations of this blazar in the AAVSO International Database include:
- Shigehisa Fujikawa (Kan'onji, Kagawa, Japan; reported to CBAT via M. Soma (National Astronomical Observatory of Japan, Mitaka, Tokyo))
- All Sky Automated Survey for SuperNovae (ASAS-SN) (K. Z. Stanek et al., ATel #9469, published September 7; reported to CBAT via L. Chomiuk (Michigan State University))
September 1, 2016: Dr. Christian Knigge (University of Southampton) and colleagues have requested AAVSO coverage of the Z Cam dwarf nova RX And in support of Chandra X-ray observations to be carried out via a Target of Opportunity (TOO) triggering when the system is in a suitable outburst.
August 3, 2016: Dr. Noel Richardson (University of Toledo) and colleagues have requested AAVSO assistance in optical monitoring of the bright, colliding-winds binary V1687 Cyg (WR 140, HD 193793) as part of their multi-wavelength campaign on this system.
July 13, 2016: Dr. Colin Littlefield (University of Notre Dame) and colleagues Drs. Peter Garnavich (Notre Dame), Erin Aadland (Minnesota State), and Mark Kennedy (University College Cork) have requested AAVSO assistance in monitoring the intermediate polar cataclysmic variable FO Aqr beginning immediately.
Dr. Littlefield, who with his colleagues recently published ATel #9216 and #9225, writes:
July 5, 2016: Further to AAVSO Alert Notice 539, Deanne Coppejans and colleagues request optical monitoring of the Z Cam dwarf nova RX And in support of their campaign to observe it with the Very Large Array (VLA) in their ongoing radio jet research.
Deanne writes in a post to the AAVSO Forum thread on this campaign: "We are going to try and catch RX And in quiescence again in the next three weeks. The optical coverage of it is still sparse, so any observations you take of it will be extremely useful."
The prototype of its class and characterized by random fadings from maximum light, 1544+28A R Coronae Borealis continues to fade in brightness. Observations reported to the AAVSO indicate that the present fading from its maximum visual magnitude of 6.0 began in early July 2007. Fading slowly to about magnitude 7.0 by July 17, it remained at that magnitude before continuing to fade again on July 22, since when it has declined more steeply, reaching magnitude 10.8 on August 6.