THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
www.aavso.org aavso@aavso.org Tel. 617-354-0484 Fax 617-354-0665
AAVSO SPECIAL NOTICE #4 (February 6, 2006)
OUTBURST OF 1137+72 DO DRA
The DQ Her-type (intermediate polar) magnetic variable DO Dra is in outburst.
This star has outbursts at irregular intervals that last only 4-5 days. The
last outburst reported in the AAVSO International Database occurred in March
2005, when the star reached visual magnitude 11.2.
Observations of DO Dra recently reported to the AAVSO include
FEB 04.1000 UT <14.3 CGF (G. Chaple, MA, USA)
FEB 04.8049 <13.7 MUY (E. Muyllaert, Belgium)
FEB 05.9097 11.7 OJR (J. Ripero, Spain)
FEB 05.9514 11.7 MUY
FEB 06.1667 11.3 DPV (P. Dubovsky, Slovakia)
FEB 06.4097 11.1 LMK (M. Linnolt, HI, USA)
Coordinates for DO Dra are: R.A. 11:43:38.50 Dec +71:41:20.7 (2000)
AAVSO 'e' and 'f' scale charts of DO Dra are available from
http://www.aavso.org/cgi-bin/searchcharts3.pl?name=do%20dra
Visual and CCDV observations are strongly encouraged. CCD observers should
use the 'f' scale chart. Report observations as 1137+72 DO DRA.
Thank you for your astronomical efforts, and good observing,
Elizabeth Waagen, Senior Technical Assistant
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