Perseid Meteors 2009
Abstract
P. Jenniskens and L. Genovese, SETI Institute; G. Barentsen, International Meteor Organization (IMO); and J. Vaubaillon, Institut de Mecanique Celeste et de Calcul des Ephemerides, report that at least two outbursts were detected on top of this year's annual Perseid shower activity. The first outburst occurred at Aug. 12d08h06m +/- 9m UT (solar longitude 139.623 deg, equinox 2000.0) with a peak rate of ZHR = 120 +/- 30 meteors/hr and duration FWHM = 0.5 hr (observations by W. Watson, W. Godley, R. Lunsford, P. Kozich, and W. Stone, IMO); this event is tentatively identified as an anticipated encounter with the 1610-A.D. ejecta of comet 109P/Swift-Tuttle, predicted to occur at 07h16m UT (P. Jenniskens 200x, *Meteor Showers and their Parent Comets*, p. 657). In addition, Vaubaillon reports that dust from 1737 ejecta was at the same location, with both 1610 and 1737 ejecta calculated to fall just outside of the earth's orbit.
- Publication:
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Central Bureau Electronic Telegrams
- Pub Date:
- August 2009
- Bibcode:
- 2009CBET.1921....1J