View Single Post
  #2  
Old 06-02-2008, 06:35 AM
citivolus's Avatar
citivolus (Ric)
Refracted

citivolus is offline
 
Join Date: Sep 2007
Location: Carindale
Posts: 1,178
Quote:
Originally Posted by glenc View Post
The Space Islands Group of California expects to have a prototype in orbit in 2009 delivering a steady 10-25 megawatt beam to where it's needed most
What is the collector size needed to develop 25 megawatts from solar, and what would be the angular size in a geosynchronous orbit assuming a round profile? Consider that the collector would be at opposition at around midnight, and then consider the magnitude of an Iridium flare. Extrapolate.

I hope that nobodies favourite target for imaging is equatorial!

Edit: 152m diameter for a circular solar array of 18,300 square metres at 1366 watts per square metre to deliver 25 megawatts. Angular size 0.78 arc seconds. That's going to be one bright pin point.

Last edited by citivolus; 06-02-2008 at 06:49 AM.
Reply With Quote