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RE: Pallas
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Arcturus3.gif

To find The asteroid Pallas, locate the bright star, Arcturus, in the constellation Bootes (Find Ursa Major, then follow the sweep of the Big Dipper's handle down to the star), then star-hop up and across to the faint, but distinctive, constellation Corona Borealis.

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Pallas-2010-5-13-23h38m.gif

Pallas: 23:38 UT, 13 May, 2010.

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This week, the huge asteroid Pallas reaches opposition, being opposite to the sun in Earth's sky, making it a prime target for avid skywatchers with telescopes.
To spot Pallas tonight, look for the brightest star, called either Alphecca or Gemma, in Corona Borealis.
Pallas is an 8th magnitude object just south of this star.

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Asteroid Pallas at opposition on the 14th May, 2010.

Magnitude 8.6

Ephemeris
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V

2010 04 21 15 44.98 +21 51.7 1.947 2.767 136.8 14.4 8.6
2010 04 26 15 41.53 +22 56.2 1.951 2.779 137.7 14.1 8.6
2010 05 01 15 37.72 +23 53.2 1.959 2.791 138.0 14.0 8.7
2010 05 06 15 33.67 +24 41.7 1.974 2.802 137.6 14.0 8.7
2010 05 11 15 29.47 +25 21.3 1.993 2.814 136.6 14.3 8.7
2010 05 16 15 25.25 +25 51.5 2.018 2.826 135.1 14.6 8.8
2010 05 21 15 21.14 +26 12.3 2.047 2.838 133.2 15.1 8.8
2010 05 26 15 17.24 +26 23.8 2.082 2.849 130.9 15.6 8.9
2010 05 31 15 13.64 +26 26.5 2.120 2.861 128.2 16.2 9.0


-- Edited by Blobrana on Friday 30th of April 2010 01:52:30 PM

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The magnitude 8.7 asteroid (2) Pallas will occult a magnitude 11.6 star in the constellation Serpens, at 20:39 UT, 9th April, 2010.
The 33.1 second event is visible from India, Russia, and Europe.

Position (2000): RA 15 50 56.6885, Dec +19 06 00.285

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The magnitude 8.7 asteroid (2) Pallas will occult the magnitude 9.3 star HD 142226 in the constellation Serpens, at 04:24 UT, 4th April, 2010.
The 32.6 second event is only visible from the Pacific Ocean.

Position (2000): RA 15 52 52.3195, Dec +17 33 26.027

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The Hubble telescope has provided new insight on 2 Pallas, one of the largest asteroids in the Solar System.
The nearly 600km-wide rock is an example of an object that started out on the process of becoming a planet but never grew up into the real thing.
Researchers have published a 3D model of the grapefruit-shaped mini-world in Science magazine.


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Britney E. Schmidt, a UCLA doctoral student in the department of Earth and space sciences, wasn't sure what she'd glean from images of the asteroid Pallas taken by the Hubble Space Telescope. But she hoped to settle at least one burning question: Was Pallas, the second-largest asteroid, actually in that grey area between an asteroid and a small planet?
The answer, she found, was yes. Pallas, like its sister asteroids Ceres and Vesta, was that rare thing: an intact protoplanet.

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Images from the Hubble Space Telescope suggest that the asteroid Pallas should be grouped along with two other big space rocks as protoplanets - "planetary embryos" that were big enough to stay pretty much as they were during the formation of the solar system, but too small to progress to the next stage of development.
Source

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Astronomers examining one of the solar system's largest asteroids with the Hubble Space Telescope have dubbed it a "protoplanet."
Pallas, an asteroid 265 kilometres in diameter and located in the asteroid belt between Mars and Jupiter, joins two other asteroids, Ceres and Vesta, which are also considered protoplanets.

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