In a rare event on July 8, 2010, skywatchers will be able to see an asteroid briefly block out the light from a star as it passes in front. It may be the only asteroid "occultation" this century observable with the naked eye.
During the night of 8/9 July, however, a star that is visible to the naked eye, Delta Ophiuchi (the fourth-brightest star in the constellation Ophiuchi), will be occulted by asteroid Roma, which has a diameter of about 50 km.
During the night of 8/9 July, however, a star that is visible to the naked eye, Delta Ophiuchi (the fourth-brightest star in the constellation Ophiuchi), will be occulted by asteroid Roma, which has a diameter of about 50 km.
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