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. --------------------------------------------------- SUBMIT OBSERVATIONS TO THE AAVSO Information on submitting observations to the AAVSO may be found at: http://www.aavso.org/observing/submit/ SPECIAL NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION A Special Notice archive is available at the following URL: http://www.aavso.org/publications/specialnotice/ Subscribing and Unsubscribing may be done at the following URL: http://www.aavso.org/publications/email/