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AAVSO Alert Notice

Alert Notice 582: Nova Oph 2017 photometry requested for Swift TOO observations

June 15, 2017: Drs. Frederick Walter (Stony Brook University) and Paul Kuin (University College London) and colleagues have requested AAVSO observers' assistance in obtaining photometry of Nova Oph 2017 (TCP J17394608-2457555) in support of Target-of-Opportunity observations with Swift UVOT that have been triggered and are scheduled for the next ten days (2017 June 16 - 25), and possibly longer.

Alert Notice 581: Monitoring HD 148703 during upcoming eclipses

June 8, 2017:  Dr. Milena Ratajczak (University of Wrocław) has requested AAVSO observers' assistance in monitoring the very bright (V = 4.23) and very unusual eclipsing binary HD 148703 (HR 6143, N Sco) during its infrequent primary and secondary eclipses scheduled for 2017 June 11 and June 14, respectively.

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Alert Notice 177: Nova Sagittarii 1993 [V4327 Sgr] AND Outburst of 0409-71 VW Hydri

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa8 SPAN: nssdca::cfa8::aavso
INTERNET: aavso@cfa0.harvard.edu
Tel. 617-354-0484    FAX 617-354-0665

AAVSO ALERT NOTICE 177 (September 17, 1993)

Alert Notice 168: Superoutburst of 0829+53 SW Ursae Majoris AND Superoutburst of 1215-17 - Crv (Tombaugh's nova-dwarf nova) [TV Crv] AND Outburst of 0830+21 CC Cancri

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa8 SPAN: nssdca::cfa8::aavso
INTERNET: aavso@cfa0.harvard.edu
Tel. 617-354-0484    FAX 617-354-0665

AAVSO ALERT NOTICE 168 (February 18,1993)

SUPEROUTBURST OF 0829+53 SW URSAE MAJORIS

The SU UMa type dwarf nova 0829+53 SW UMa is undergoing a superoutburst, as indicated by the following observations:

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AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484