Monday, May 5, 2014

Meteor Watch!



METEORS FROM HALLEY'S COMET--TONIGHT: Earth is passing through a stream of debris from Halley's Comet, source of the annual eta Aquarid meteor shower. Forecasters expect the shower to peak on the night of May 5-6 with as many as 60 meteors per hour in the southern hemisphere and half that number in the north. No matter where you live, the best time to look is during the dark hours before local sunrise on May 6th.
Check http://spaceweather.com for more information and observing tips.

The eta Aquarid
Meteor Shower
SpaceWeather.com
Global Notes: This shower can be seen from both hemispheres, but south is favored with twice as many meteors.
The 2014 eta Aquarid meteor shower peaks on the night of May 5-6. Forecasters estimate a maximum of 60 visible meteors per hour. The shower can be seen from both hemispheres, but the southern hemisphere is favored with twice as many meteors as the north. The best time to look, no matter where you live, is during the hours just before local sunrise.
astronomy binocularsEta Aquarids are flakes of dust from Halley's Comet, which last visited Earth in 1986. Although the comet is now far away, beyond the orbit of Uranus, it left behind a stream of dust. Earth passes through the stream twice a year in May and October. In May we have the eta Aquarid meteor shower, in October the Orionids. Both are caused by Halley's Comet.
The shower is named after a 4th-magnitude star in the constellation Aquarius. The star has nothing to do with the meteor shower except that, coincidentally, meteors appear to emerge from a point nearby. Eta Aquarii is 156 light years from Earth and 44 times more luminous than the Sun.
The constellation Aquarius does not rise very far above the horizon in the northern hemisphere, and that's why northerners see relatively few meteors. But the ones they do see could be spectacular Earthgrazers.
Earthgrazers are meteors that skim horizontally through the upper atmosphere. They are slow and dramatic, streaking far across the sky. The best time to look for Earthgrazers is between 2:00 to 2:30 a.m. local time when Aquarius is just peeking above the horizon.
Experienced meteor watchers suggest the following viewing strategy: Dress warmly. Bring a reclining chair, or spread a thick blanket over a flat spot of ground. Lie down and look up somewhat toward the east. Meteors can appear in any part of the sky, although their trails will point back toward Aquarius.
Tidbits:
  • Eta Aquarid meteoroids hit Earth's atmosphere traveling 66 km/s.
  • Typical eta Aquarid meteors are as bright as a 3rd magnitude star.


http://spaceweather.com/meteors/etaaquarids/images/skymap_north2014.gif



Should be worth getting up early for!


4 comments :

  1. Did you see any?
    Terry
    Fla

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    1. Was up and outside a little before 4am - Cloud, clouds, clouds. DAMN!
      Did you?

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  2. no, couldn't get to sleep last night. Should have just gone outside then...
    Listening for radio meteor scatter "pings" on the radio this AM. Nothing there either but my antennas are not very good.
    Terry

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    Replies
    1. Hate when I can't sleep - I sit on the deck, even if it's cold out. Might get another shot at meteor showers on May 24th:
      http://science.nasa.gov/science-news/science-at-nasa/2014/06may_newshower/

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