Comet C73P meteor shower 11:00 PM local time 5/23?
In an S&T Article, the potential for increased meteor activity around 11:00 pm local time on May 22 and May 23 from C73P's closest approach to Earth is suggested, but is unlikely. Did anyone notice anything last night? McRobert, A.M. 5/2006. Comet Schwassmann- Wachmann Heads Toward the Sunrise - [Meteor shower May 22-23?] http://skyandtelescope.com/observing/objects/comets/article_1704_1.asp The article states: "Jack Drummond of the Starfire Optical Range predicts that debris shed by the comet many years ago (long before the 1995 breakup) could bring us a meteor shower on the night of May 22-23. He writes: 'The closest approach of [Fragment C's] orbit to the Earth, 0.04 astronomical unit, occurs on May 22 at 20:00 UT. Thus the maximum of the meteor shower would be on May 22 or May 23, with a radiant of right ascension 208° [13h 52m] and declination +30° [in Canes Venatici, 12° north-northwest of Arcturus], and a geocentric velocity of 13.5 km/sec, which is quite slow.' Unlike with many meteor showers, this radiant is highest in the sky as early in the night as 11 p.m. daylight saving time  so the meteors would be visible any time from dusk to dawn." Although C73P Frag C passed 0.04 au from the Earth, the increased possibility for a shower comes from the expanding debris cloud from the 1995 breakup. Wiegert, P. et. al. 2005. The tau Herculid meteor shower and Comet 73P/Schwassmann-Wachmann 3 http://aquarid.physics.uwo.ca/%7Epbrown/taus.pdf - Canopus56 See also NASA. 3/24/2006. Mini-Comets Approaching Earth. http://science.nasa.gov/headlines/y2006/24mar_73p.htm. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
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