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Re: FYI: AoA's News release on MH '99 (dumb)
-----Original Message-----
From: -=Bob=- <mx@snet.net>
>Stephen Bigelow wrote:
>
>> Parsec: a unit of steller distance, equal to about 3.25 light years (3.08
*
>> 10^16 metres), the distance at which the mean radius of the earth's orbit
>> subtends an angle of one second of arc.
>>
>> I don't understand it either. *s*
>
>I always thought it was one second of one degree of arc (of 1 AU). Oh
well..
>close...
Root: PARallax+ SECond
Concise Oxford Dictionary