WZ Sge star

Note: Additional HST observations may be scheduled, so please continue obtaining 2-3 V snapshots per week. When a decision is made about any further HST observations (and consequent cadence changes), that information will be communicated via the forum threads for this campaign. Please be sure to subscribe to stay informed! - Elizabeth O. Waagen, 1 October 2020

Note: The HST observations of TCP-J21040470+4631129 have been scheduled for

Sep 12, 2020 07:16:37 to 13:07:28 UT

May 29, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Cataclysmic Variables: https://www.aavso.org/pq-and-outburst
- Time Sensitive Alerts: https://www.aavso.org/pq-and-outburst-01

Note: This campaign has been rescheduled. Please see AAVSO Alert Notice 714 for information.  -  Elizabeth O. Waagen, August 6, 2020

February 12, 2018: Dr. Koji Mukai (NASA Goddard Space Flight Center) and colleagues have requested AAVSO observations of the WZ Sge type dwarf nova GW Lib in support of observations with the ESA XMM-Newton spaceobservatory scheduled for

2018 February 17  05:46:41 - 21:36:41 UT

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
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Tel. 617-354-0484    FAX 617-354-0665

AAVSO ALERT NOTICE 165 (October 26, 1992)

RARE OUTBURST OF 0846+58 BZ URSAE MAJORIS

December 6, 2013: Observer Carlo Gualdoni reports via the cvnet-outburst mailing list that the WZ Sge-type dwarf nova AL Comae is in outburst, with a magnitude of V=12.74 on 2013 December 6.185 (JD 2456633.1185).  Gary Poyner notes on the BAAVSS mailing list that this is the first observed outburst of AL Com since October 2007.  Both visual observations and CCD time series are encouraged.