Abandoned Diamond Belt aioid colony

Image from Steve Bowers
Star LTT 17897
Distance from Sol 17.5 ly
Type M3.5 V
Mass 0.2 x Sol
Luminosity 0.00074
Constellation Orion

LTT 17897 III; a carbonaceous planetoid orbiting the dim M4 star LTT 17897. Notable for the signs of massive nanofacturing on the surface, tentatively dated as the 27th century. It is believed that it was used to launch von Neumann probes outwards, but no sign of the builders have ever been found and no aioid clade claiming descent from Charybdis has ever been found. The nanodefenses appear similar to the nanodefenses found on Duoden Torus.
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Development Notes
Text by Anders Sandberg

Initially published on 24 September 2001.