Date and Time
Saturday, November 17th, 2012 at 9:00pm
Radio 1190 and ITCHY-O present: NIGHT OF THE LEONIDS
The itchy-O Marching Band will provide a live soundtrack to this annual meteor shower. Also performing; Zebroids and MCP Dr. Whom
Get your tickets while you can! $10pre-sale $15at-the-door:
As the Earth moves through the meteoroid stream of particles left from the passage of the comet Tempel-Tuttle the Leonid Vandeski makes prolific marks in the sky from our vantage point annually. The Leonids get their name from the location of their radiant in the constellation Leo: the meteors appear to radiate from that point in the sky. They tend to peak in November and will be most visible this year the night of November 17th-18th.
The stream comprises solid particles, known as meteoroids, ejected by the comet as its frozen gases evaporate under the heat of the Sun when it is close enough – typically closer than Jupiter's orbit. The Leonids are a fast moving stream which come close to or cross the path of the Earth and impact the Earth at 72 km/s. Leonids in particular are well known for having bright meteors or fireballs which may be 9 mm across and have 85 g of mass and punch into the atmosphere with the kinetic energy of a car hitting at 60 mph. An annual Leonid shower may deposit 12 or 13 tons of particles across the entire planet. Sometimes these trails of meteoroids cause meteor showers.
The meteoroids left by the comet are organized in trails in orbits similar to though different from that of the comet. They are differentially disturbed by the planets, in particular Jupiter and to a lesser extent by radiation pressure from the sun, the Poynting–Robertson effect, and the Yarkovsky effect. Old trails are spatially not dense and compose the meteor shower with a few meteors per minute. In the case of the Leonids, that tends to peak around November 17, but some are spread through several days on either side and the specific peak changing every year. Conversely, young trails are spatially very dense and the cause of meteor showers when the Earth enters one. Usual counts during a storm exceed 1000 meteors per hour, to be compared to the annual background (1 to 2 meteors per hour) and the shower background (a few per hour).
Don't miss this chance to see itchy-O align it's magnetic fields and all of our intentions with this flurry of galactic activity in our troposphere, stratosphere mesosphere, and up through our thermosphere!