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Asteroid (1) Ceres is at opposition on the 18th June, 2010.

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ceres180610.gif

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Asteroid 1 Ceres makes its closest approach to the Earth (1.825 AU) on the 15th June, 2010.

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Ephemeris
Date       UT      R.A. (J2000) Decl.    Delta     r     El.    Ph.   V
2010 06 14 000000 17 53 23.8 -25 11 01 1.826 2.838 173.9 2.2 7.2
2010 06 15 000000 17 52 25.3 -25 14 22 1.825 2.839 175.0 1.8 7.1
2010 06 16 000000 17 51 26.4 -25 17 41 1.825 2.839 176.1 1.4 7.1
2010 06 17 000000 17 50 27.4 -25 20 57 1.825 2.840 177.0 1.1 7.1
2010 06 18 000000 17 49 28.3 -25 24 11 1.825 2.841 177.7 0.8 7.1
2010 06 19 000000 17 48 29.1 -25 27 22 1.826 2.842 178.0 0.7 7.0
2010 06 20 000000 17 47 30.0 -25 30 31 1.827 2.842 177.5 0.9 7.1
2010 06 21 000000 17 46 30.9 -25 33 37 1.828 2.843 176.7 1.2 7.1
2010 06 22 000000 17 45 31.9 -25 36 39 1.829 2.844 175.8 1.5 7.1
2010 06 23 000000 17 44 33.2 -25 39 39 1.831 2.845 174.7 1.9 7.2
2010 06 24 000000 17 43 34.7 -25 42 36 1.833 2.845 173.6 2.3 7.2
2010 06 25 000000 17 42 36.6 -25 45 30 1.835 2.846 172.5 2.7 7.2
2010 06 26 000000 17 41 38.8 -25 48 21 1.838 2.847 171.4 3.1 7.3
2010 06 27 000000 17 40 41.6 -25 51 09 1.841 2.847 170.2 3.5 7.3
2010 06 28 000000 17 39 44.8 -25 53 53 1.844 2.848 169.1 3.9 7.3
2010 06 29 000000 17 38 48.6 -25 56 35 1.847 2.849 167.9 4.3 7.3
2010 06 30 000000 17 37 53.0 -25 59 14 1.851 2.850 166.8 4.7 7.4


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There are lots of asteroids out there. Scientists estimate somewhere around a million with a diameter of a half-mile or more in the main belt between Mars and Jupiter. The biggest one, Ceres (SEER-eez) was also the first one discovered back on January 1, 1801 by Italian priest and astronomer Giuseppe Piazzi. For a while it was considered the long-hypothesized planet in the gap between Mars and Jupiter, but when numerous other asteroids were discovered in similar orbits, Ceres' rank was dropped to asteroid. Recently however, the International Astronomical Union redefined what a planet is, and Ceres was promoted to "dwarf planet" right alongside venerable Pluto.
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The magnitude 7.2 asteroid (1) Ceres will occult a magnitude 11.6 star in the constellation Sagittarius, at 10:31 UT, 11th June 2010.
The 77.5 second event is visible from SW USA and Mexico.

Position(2000): RA 17 55 52.2785 Dec -25 02 17.209

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The magnitude 7.4 asteroid (1) Ceres will occult the magnitude 10.7 star 2MASS J18001620-2445389 in the constellation Sagittarius, at ~17:22 UT, 6th June, 2010.
The 80.7 second event will be visible from Japan, China, Nepal, and India.

Position(2000): RA 18 00 16.2032, Dec -24 45 39.058


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CERES010610.gif

Asteroid (1) Ceres is currently passing  the Lagoon Nebula (M8) in the constellation Sagittarius.

-- Edited by Blobrana on Wednesday 2nd of June 2010 06:00:37 PM

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The Moon will occult the magnitude 7.5 asteroid (1) Ceres on the 29th May, 2010 @ ~22:03 UT.
The event is visible from south Africa.

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ceres-2010-5-27-17h58m.gif

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