Special Notice #419: V1687 Cyg spectroscopy and sequence and Subscription reminder
August 9, 2016
V1687 Cyg spectroscopy and sequence
WR 140
Alert Notice 546: Campaign on V1687 Cyg (WR 140)
Campaign continued through 2017. Also, updated in Special Notice #419 (20160809) to encourage spectroscopy.
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.