U Sco

January 28, 2010: The recurrent nova U Sco has been reported in outburst, and confirming observations and immediate reporting are urgently requested.

U Sco is located at coordinates RA: 16 22 30.80 , Dec: -17 52 43.0 (J2000).

February 8, 2010: Dr. Bradley Schaefer has requested increased optical coverage of the recurrent nova U Scorpii through the end of February 2010 at least. Of greatest interest are calibrated multicolor photometry to follow the evolution of the optical spectrum throughout the outburst, and intensive time-series photometry to study flickering in the system and to time the eclipses. Recent photometry of U Scorpii has indicated that the nova ejecta shell has become optically thin, making the central star visible again.

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 255 (February 25, 1999)

OUTBURST OF THE RECURRENT NOVA 1616-17 U SCORPII

January 22, 2008: Dr. Bradley E. Schaefer (Louisiana State University) requests increased monitoring of the recurrent nova U Scorpii (AAVSO 1616-17) over the next 24 months. Observers are asked to add U Sco to their regular observing program and to monitor the star in advance of an outburst predicted to occur around 2009.3 +/- 1.0 year.