VY Scl

Alert Notice 841: VY Scl coverage needed now for HST ToO observations (backup copy)

Notes: HST will not be able to observe VY Scl at this time, so the observations have been canceled. However, the data being obtained by you continue to be extremely valuable to the astronomers, and continuing coverage is requested until after VY Scl has returned to its bright state. Thank you!  -  Elizabeth O. Waagen, January 31, 2024

Alert Notice 838: Monitoring requested for 11 dwarf novae in support of HST observations in 2023-2024 (backup copy)

Notes: LL Lyr was not observed in July 2024 due to technical issues with HST, but it may be observed in August so please continue observations. Also, CS Ind is planned to be observed in August 2024, so please observe it. More information on CS Ind's and LL Lyr's schedules will be issued when available. - Elizabeth O. Waagen, August 4, 2024

KZ Gem has been put on hold by HST, and likely won't be observed until next year, if at all.  -  Elizabeth O. Waagen, January 2, 2024

October 26, 2023

Alert Notice 841: VY Scl coverage needed now for HST ToO observations

Notes: HST will not be able to observe VY Scl at this time, so the observations have been canceled. However, the data being obtained by you continue to be extremely valuable to the astronomers, and continuing coverage is requested until after VY Scl has returned to its bright state. Thank you!  -  Elizabeth O. Waagen, January 31, 2024

Special Notice #75: Monitoring of TT Ari in support of MOST observations

October 22, 2007: The Microvariability and Oscillations of Stars (MOST) Satellite will conduct a targeted photometric observing campaign on the cataclysmic variable TT Ari, beginning 2007 October 23 UT (JD 2454397) and concluding on 2007 October 28 (JD 2454402). This observing program was proposed by a group of Austrian amateur astronomers who proposed to the "MOST fuer Alle" program of the University of Vienna, the Austrian partner project of the MOST collaboration's "My Own Space Telescope" program for Canadian observers.

Alert Notice 386: Low state of VY Scl

October 2, 2008 : The cataclysmic variable VY Scl appears to have recently entered a low state according to observations recently submitted to the AAVSO. Javier Temprano reports positive detections of VY Scl at CV=17.46 on JD 2454730.46181 (2008 Sept 20.9618) and at CV=18.23 on JD 2454730.572 (2008 Sept 21.072).  All other recent AAVSO and ASAS-3 (Pojmanski, G.