AAVSO Special Notice #171

Request for twilight observations of U Sco
October 16, 2009

Further to AAVSO Alert Notice 367 and Special Notices 127 and 141, the
AAVSO requests twilight observations of the recurrent nova U Scorpii
prior to its solar conjunction in late 2009.  These observations
are in support of the long-term campaign by Dr. Bradley Schaefer (LSU)
to catch this very fast nova during its rise.  In 2008, the last 
ground-based observation of U Sco was made on 2008 November 2 (S. Kerr,
Glenlee, QLD, Australia).  Observers are asked to do the best they can
to observe U Sco as close to the Sun as possible.  For this project,
fainter-than observations are just as important as positive ones, and
observers are asked to report all observations as promptly as possible
via AAVSO WebObs.


For more information on the U Sco campaign and its science goals, please
see the following URL: http://www.aavso.org/news/usco.shtml


U Sco is located at the following (J2000) coordinates:

        RA: 16:22:30.80 , Dec: -17:52:43.0


Charts for U Sco may be plotted using AAVSO VSP:

http://www.aavso.org/observing/charts/vsp/index.html?pickname=U%20Sco


Please promptly report all observations to the AAVSO with the name "U SCO".


This AAVSO Special Notice was prepared by M. Templeton.


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