[TML] Noncanonical TU 3D.

[rpg]

 Anthony Jackson wrote:

>> Though it should be possible to find a large cometary body in deep
>> space from which to refuel.
>
>Lemme think. A 1 km object, sunlit at 1 AU, has an apparent magnitude of
>16-19 depending on its albedo. Starlight is about a billion times dimmer
>than direct sunlight, so a 1 km deep space object, at 1 AU, would have
>an apparent magnitude of 39-42. That seems fairly impractical even with
>futuristic sensors.

Active sensors simply matters considrably with a search like this, radar or
even just a searchlight would be enough. Much easier than just relying on
passive sensors with ambient light.
Mike