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Old 10-August-2005, 07:53 PM
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Default Asteroid with TWO moons

First Asteroid Trio Discovered

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An asteroid known to astronomers for more than a century has now been found to harbor two small satellites.

It is the first asteroid trio ever discovered.

And there may be more than three.

The main asteroid, named 87 Sylvia, is one of the largest known to orbit the Sun in the main asteroid belt, between Mars and Jupiter. It is potato-shaped, about 175 miles (280 kilometers) in diameter and 235 miles (380 kilometers) long. It was discovered in 1866.

The first moon was found four years ago and the second one was announced today.
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Old 10-August-2005, 10:48 PM
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Original ESO press release with images and animations is here.
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Old 11-August-2005, 02:14 AM
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Well, the naming business is getting even more silly. It has been suggested that you can't use many of the Romano-Greek names for planets like 'Xena' because they have been used for asteroids, but now they are proposing to name these Romulus and Remus.

Only problem is that there already is:

10386 Romulus (1996 TS15)

Not the same body, as the moon was discovered in 2001, designation S/2001 (87) 1

Far more confusing than naming a planet with an asteroid's name, but it also suggests that 'Xena' can be called anything the IAU wants, (provided it isn't already the name of a major planet or moon, I guess.)
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