Αγαπητοι φιλοι, Κατι απο το sci.astro.amateur ... Messier Marathon 2005 Primary Date: March 12-13, 2005 Alternate Dates: March 5-6 and April 9-10, 2005 The Messier Marathon presents an opportunity to view the entire Messier List in one night. Each Spring, the period around the Spring Equinox on March 21 allows observers to view all 110 of the Messier objects in one observing session. In 2005, the new moon weekends fall on March 12-13 and April 9-10, allowing for a full night of observing. During other weekends in March, the appearance of the moon during part of the night will hinder observers from viewing the whole list. The American Association of Amateur Astronomers has provided Maps and Recording Sheets for your use while working on the Messier Marathon, based on the Messier Marathon Observer's Guide by Don Machholz Download our PDF file: http://www.astromax.org/marathon.htm Clear Skies and Good Messier Observing! Have Fun! Ed Flaspoehler, AAAA American Association of Amateur Astronomers http://www.astromax.com