The Dyson Sphere and the Hubble Telescope.

ClaysGhost · Post by **ClaysGhost** » 2004-07-21 01:59pm

These things will be obvious. Objects with a luminosity comparable to the Sun's but with surface temperatures comparable or lower than those of a brown dwarf - completely exceptional. Forget the HST, there should have been a sphere found in the IRAS survey, if they existed. You don't need space telescopes, even - a ground-based IR telescope like Gemini would stand an excellent chance of detecting one within at least 1000 lightyears of here. At least. Of course, for sufficient distance you are in danger of confusion with closer objects, but I wouldn't be surprised if "sufficient distance" turned out to be outside the galaxy, or the greater part of it.

CelesKnight · Post by **CelesKnight** » 2004-07-21 09:56pm

Could the builders of a Dyson's Sphere rig it so that all of the excess energy is radiated in one particular direction? (Hence hiding it from observers in every other direction.)

Sarevok · Post by **Sarevok** » 2004-07-26 03:02am

CelesKnight wrote:Could the builders of a Dyson's Sphere rig it so that all of the excess energy is radiated in one particular direction? (Hence hiding it from observers in every other direction.)

I dont think so. The best they could do is to super cool one side.