Special Notice #91: BZ UMa Monitoring for Polarization Measurements
*/
/*-->*/
January 14, 2008: Photometric and visual observations of the dwarf novae BZ UMa are requ
BZ UMa
Alert Notice 171: 2252-36 SN 1993L in IC 5270 AND Request to monitor SS Cyg and AD Leo for ASCA mission AND VY Aqr outburst AND BZ UMa outburst AND Supernova 1993J in NGC 3031 AND Nova Oph 1993 [V2295 Oph] AND 1809-00 FG Ser (AS 296) (Desig revised)
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 171 (May 5,1993)
2252-36 SN 1993L in IC 5270
Alert Notice 165: Rare outburst of 0846+58 BZ Ursae Majoris
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 165 (October 26, 1992)
RARE OUTBURST OF 0846+58 BZ URSAE MAJORIS
Special Notice #43: Possible Super Outburst of BZ UMa
April 14, 2007
The cataclysmic variable star BZ UMa is currently experiencing an outburst which is peculiar for that star. Historically, BZ UMa has outbursts every 312 +/-114 days (although it has been much more regular in the past decade). These outbursts are similar to regular UGSU outbursts with a fast rise and a short decay over four days and are absent of any superhumps or other periodicity. However, no superoutbursts of the type also associated with UGSU stars have been detected in BZ UMa despite good observational coverage since 1972.
Special Notice #14: BZ UMa Outburst
June 22, 2006: Based on the following observations, BZ UMa appears to be in outburst:
JUN 22.1986 V 11.36 +/- 0.02 GKA
JUN 22.8854 Unf. 11.5 (rough) VMT
Thanks to Keith Graham (GKA) for discovering the outburst, Tonny Vanmunster (VMT) for confirming it and Eddy Muyllaert (MUY) for bringing it to our attention.
Alert Notice 209: Outburst of 2325+43 DX Andromedae AND Outburst of 2318+17 EP Pegasi AND New variable in Crux - 1250-60 Var Cru AND Reminders to monitor 0409-71 VW Hydri and 2138+43 SS Cygni [NSV 19555]
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
INTERNET: aavso@aavso.org
Tel. 617-354-0484 FAX 617-354-0665
AAVSO ALERT NOTICE 209 (June 21,1995)
OUTBURST OF 2325+43 DX ANDROMEDAE
Alert Notice 235: Rare outburst of 1950+32A EY Cygni AND Outburst of 0058+40 RX Andromedae AND Short outburst of 0846+58 BZ Ursae Majoris
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
INTERNET: aavso@aavso.org
Tel. 617-354-0484 FAX 617-354-0665
AAVSO ALERT NOTICE 235 (January 13, 1997)
RARE OUTBURST OF 1950+32A EY CYGNI