Asteroid (1) Ceres in the constellation Ophiuchus, 21.36 UT, 1st August, 2010.
Magnitude= 8.1mag Best seen from 19.1h - 1.1h RA=17h18m08.2s Dec=-27°03'25" (J2000) Distance to Sun=2.873AU Distance to Earth=2.101AU hourly motion: dRA= -6.5"/h dDec= -3.8"/h
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. Read more
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
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