In a message dated 4/26/04, Rich N. writes:
> Most of the time Porrima looked very elongated. Only at
> the best moments did it look like it was just starting to show a
> figure 8 (slightly pinched).
>
> One of the people at the star party thought it was about 0.70.
> At 0.58 I'm really happy we could tell it was a double.
Coincedentally, I was also looking at Porrima last night with a 6-inch stop
of my 18-inch Starmaster at 300x and it was clearly elongated or barely
dog-biscuit shaped with two merged airy discs but no hint of a clean
separation. At 0.51" and closing that's probably the best one can expect
with that aperture.
Steve
Received on Mon Apr 26 19:17:33 2004