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Another New found comet will swing by Earth in 2013 C/2011 L4 (PANSTARRS)

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User ID: 1434374
United Kingdom
06/19/2011 06:25 AM
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Another New found comet will swing by Earth in 2013 C/2011 L4 (PANSTARRS)

A newfound comet discovered by a telescope designed to hunt for dangerous asteroids will make its closest pass by Earth in 2013 and should be visible to the naked eye when it draws near, astronomers say.

Hawaii's Pan-STARRS 1 telescope detected the comet, which is called C/2011 L4 (PANSTARRS), on the night of June 5 and 6, and the discovery was confirmed by follow-up observations with a different instrument a day later. The comet will likely come within about 30 million miles (50 million kilometers) of the sun in February or March 2013 — about the same distance as the planet Mercury, researchers said.

During its closest approach to Earth in two years, comet C/2011 L4 (PANSTARRS) likely to be visible low in the western sky shortly after sunset, weather permitting. Skywatchers interested in seeing the newfound icy wanderer should look up then, because they may never get another chance to see it.

[Photo of comet C/2011 L4 (PANSTARRS)]

The "comet has an orbit that is close to parabolic, meaning that this may be the first time it will ever come close to the sun, and that it may never return," said the University of Hawaii's Richard Wainscoat in a statement. Wainscoat helped confirm the comet's existence.

Right now, C/2011 L4 (PANSTARRS) is about 700 million miles (1.2 billion km) from the sun, placing it beyond the orbit of Jupiter. It is currently so faint that only telescopes with sensitive electronic detectors can pick it up.

The comet's clunky moniker is slightly unusual. Comets are usually named after their discoverers, but in this case such a large team of researchers helped spot the icy wanderer that it took the name of the telescope instead.

Pan-STARRS 1 found the comet while scanning the sky for potentially hazardous asteroids — ones that may someday hit Earth. The comet, however, poses no danger to our planet, researchers said. The telescope has a 1.8-meter-diameter mirror and the largest digital camera in the world at 1.4 billion pixels. Pan-STARRS 1 takes an image every 45 seconds, and each of these pictures is nearly 3 gigabytes in size.

Comet C/2011 L4 (PANSTARRS) most likely originated in the Oort cloud, a halo of icy objects in the far reaches of the solar system. The comet was probably flung toward the sun by a distant passing star, researchers said.

Over the next few months, astronomers will continue to study the comet, which will allow better predictions of how bright it will eventually get, researchers said.

(Source: Space.com)
[link to www.tehrantimes.com]
User ID: 33510966
02/02/2013 10:20 AM
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Re: Another New found comet will swing by Earth in 2013 C/2011 L4 (PANSTARRS)
Freewares for everyone - keeping track of these Comets of 2013 with the exact ecliptical positions and many more:
PANSTARRS C/2013 L4 Astrology Viewer
[link to www.inner-sky.com]
ISON Comet Astrology Viewer
[link to www.inner-sky.com]
Anonymous Coward
User ID: 16276852
02/02/2013 03:02 PM
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Re: Another New found comet will swing by Earth in 2013 C/2011 L4 (PANSTARRS)
France Hawaii telescope
Online live via webcams
You can see comet Onstage

For further details astronomy April issue