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Special Notice #127: Twilight observations of U Sco requested

October 15, 2008

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.

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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