Re: Space Nav

----- Original Message -----
From: "Randall L Joiner" <rljoiner@mindspring.com>
> Navigation depends on unique and known points to reference yourself
to.
> Pulsar's give us both.  They don't move relative to you, they are
> uniquely identifiable, quick and easy to find (if you know what you're
> looking for), and with plenty of them, you're accuracy for determining
> where you're at is near perfect.

I vaguely remember that the radio emission from pulsars is rather
tightly
bundled rater than omnidirectional. Is this right ?

If so, the volume where any given pulsar is useful may be rather
limited.
Still there should be enough of them for most navigational purposes.

Gretings
Karl Heinz