Re: saw Mir with naked eyes

Tony Beresford (
Wed, 14 Jul 1999 10:59:57 +0930

At 10:14 14/07/99 , Karsten Isenberg wrote:

>So my question is: Is it usually to see details of the MIR with naked
>eyes? My eyes a not the best ones.
Karsten, the theoretical resolving power for a 5mm optical system
is 25 arc seconds. MIR would be 20 arc seconds at most even on a
nearly overhead pass as you just experienced. The actual resolution
limit for most humans is nearer 60 arc seconds or 1 minute. Some
people can resolve venus when its a large anglular size, as it
will be near inferior conjunction in late August.
Tony Beresford
Adelaide, So. Australia