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Asteroid belts and Oort cloud in other solar systems |
| Guest_PhilCo126_* |
Oct 27 2008, 05:10 PM
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Observations with the Spitzer telescope have discerned two rocky asteroid belts and an icy outer ring surrounding our Sun’s doppelgänger Epsilon Eridani that could have been shaped by evolving planets. Epsilon Eridani, visible to the naked eye and located just 10.5 light years away in the constellation Eridanus, is marginally smaller and cooler than our own Sun, but at just 850 million years old is providing insight into how our Solar System evolved. Epsilon Eridani has an inner rocky asteroid belt and an outer rocky belt containing around 20 times as much material also exists in the same position as Uranus.
http://www.astronomynow.com/081027Doubleas...ystemclone.html |
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| Guest_PhilCo126_* |
Nov 12 2008, 06:33 PM
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#2
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Just wondered if Gary Berstein's calculations included the SDO - scattered disk objects ?
Meaning Kuiper Belt stretches between 30 AU and 100 AU ... |
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PhilCo126 Asteroid belts and Oort cloud in other solar systems Oct 27 2008, 05:10 PM
Decepticon Has this star ever been observed optically by Keck... Oct 27 2008, 07:18 PM
ngunn QUOTE (PhilCo126 @ Oct 27 2008, 05:10 PM)... Oct 27 2008, 08:55 PM
PhilCo126 Talking about Asteroid belts & Oort Cloud:
As... Nov 11 2008, 04:34 PM![]() ![]() |
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