AAVSO Special Notice #297 announces the precise time of the HST COS observations of SDSS J164248.52+134751.4, now scheduled for 2012 October 12. See AAVSO Alert Notice 471 for additional details on this observing campaign.
Good observing, Elizabeth Waagen
Links:
[1] http://www.aavso.org/forums/variable-star-observing/campaigns-observation-reports
