AAVSO Special Notice #127: Twilight observations of U Sco requested

Dr. Brad Schaefer requests evening twilight observations of U Sco
from our southern hemisphere observers for as long as is practical,
until U Sco disappears behind the Sun.  The campaign to monitor
the recurrent nova U Sco (Alert Notice #367, January 22, 2008)
continues, and observations of this object are needed.  U Sco
is a fast nova, and detection and confirmation of any nova event
need to occur over just a few hours if possible.  U Sco will be
nearly impossible for much of the northern hemisphere, but
southern observers may be able to continue observing in the early
evening twilight for a few more weeks.  All observations, including
"fainter-than" estimates are valuable, and please report all 
observations as soon as possible.  Any indication of 
outburst should be reported to aavso@aavso.org immediately.

For more information about this campaign, please see the text of
Alert Notice #367 at the following URL:

http://www.aavso.org/publications/alerts/alert367.shtml

A page about the campaign has also been established here:

http://www.aavso.org/news/usco.shtml


U Sco is located at RA 16:22:30.8 Dec -17:52:43 (J2000)


Custom charts and comparison star photometry tables for U Sco may be
generated with VSP at the following URL:

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


Recent observations for U Sco are available at the following URL:

http://www.aavso.org/cgi-bin/newql.pl?name=u%20sco&output=html 


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


This AAVSO Special Notice was prepared by Matthew Templeton.




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