Did Earth encounter pieces of an alien visitor last night?

Did Earth encounter pieces of an alien visitor last night?
Periodic meteor showers have been called the bones of comets. The Quadrantid meteor shower, visible in January, are the remains of an ancient comet observed by Chinese, Japanese and Korean astronomers 500 years ago. Credit: David A. Aguilar (CfA)

Did Earth encounter pieces of an alien visitor last night? Apparently so! It appears tiny pieces of Comet Hartley 2 may have presented a spectacular and startling sky show across the country yesterday. NASA meteor experts had predicted it was a long shot, but the evenings of November 2nd and 3rd might display a meteor shower from dust which puffed off this visiting comet as it passed within twelve million miles of Earth. And indeed, the Center for Astrophysics has collected several sightings of bright meteors called fireballs, which result when comet dust burns up in Earth's atmosphere.

Helga Cabral in Seascape, California reported after 9 pm last night, "I saw a bright white ball and tail, arcing towards the ocean. It was quite beautiful and it looked like it was headed out to sea and so picture perfect it could have been a movie!" Three thousand miles away just north of Boston, Teresa Witham witnessed a similar cosmic event. "I was in the Revere area about 7:15 last night, driving north on Route 1, when a brilliant object with a tail passed in front of me - very similar in appearance to a shooting star but it appeared much lower to the Earth than a typical shooting star would be. If it weren't for the fact that I had my daughter with me, I'd begin to believe I'd imagined it."

has put on quite a nice show for over the past few weeks, sporting a vivid green coma or halo around it and a golden auburn tail of dust. NASA's Deep Impact/EPOXI probe will present dramatic close-up images of the when it zooms past the nucleus on November 4th.

When a comet approaches the Sun, it heats up unevenly, throwing off dust, ice and bits of rock. When the Earth encounters some of this space debris, it is seen as a beautiful meteor shower.

Did Earth encounter pieces of an alien visitor last night?
This is how Comet Hartley 2 might appear in the eyepiece of a large amateur telescope. Located about eight degrees (16 full moon diameters) away from the bright star Procyon as it leaves the constellation Gemini, Comet Hartley will be best viewed high in the sky just before dawn. Credit: David A. Aguilar (CfA)
"Many people don't realize that the famous periodic in August, the Perseids, is the remains of Comet Swift-Tuttle and the Orionids, appearing in late October, are leftovers from Comet Halley," said Tim Spahr, Director of the Minor Planet Center at the Harvard-Smithsonian Center for Astrophysics in Cambridge, MA.

So for the next two evenings, we may see more of Comet Hartley 2. And if you have dark skies and a small telescope or binoculars, try to find Comet Hartley 2 itself. It will be near the bright star Procyon in the constellation Canis Minor near Orion the Hunter, which will be high overhead in the early hours before dawn.


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Scientists on the look-out for a 'Hartley-id' Meteor Shower

Citation: Did Earth encounter pieces of an alien visitor last night? (2010, November 4) retrieved 20 June 2019 from https://phys.org/news/2010-11-earth-encounter-pieces-alien-visitor.html
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Nov 04, 2010
Just my luck, clouds and rain last night, tonight and tomorrow. Dang!! (actually d... something else)

yyz
Nov 04, 2010
Unfortunately this widely posted PR fails to tell observers how to tell a 'Hartley' meteor from sporadic meteors or meteors from other showers. Meteors from Hartley will have a 'radiant' in the constellation Cygnus, so try to observe when Cygnus is above the horizon(evenings). The meteors should be moving very slowly (for meteors-several seconds) and may appear yellowish-reddish. More details, images and orbits for two possible "Hartley-ids" here: http://science.na...tleyids/

CS:
Don't feel too bad, I was clouded out last night, but maybe tonight........

yyz
Nov 04, 2010
@VK1,

Did I misspeak in my post?

Nov 04, 2010
@VK1,

Did I misspeak in my post?

You don't expect a rational reply from Zephir and his band of personalities, do you?

Nov 05, 2010
I don't think VK1 is Zephir. They write differently. Would love to see evidence to the contrary if it exists though.

Nov 05, 2010
I don't think VK1 is Zephir. They write differently. Would love to see evidence to the contrary if it exists though.

It's definitely him. Some of us keep track, just for the fun of it.

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