My father came down for my older son's 15th birthday yesterday and I
set my telescope up for him tonight. This is the first time he's
looked through it. It is a Celestron C9.25 and I set up in my
suburban San Diego back yard.

LVM was probably about 4 and I was racing time to get aligned before
Jupiter sank below the neighbor's roof. It still showed OK and I was
able to push it to about 300x. The seeing wasn't great (head waves
off the house), but my father was able to see what "seeing" was all
about.

I showed him Antares next (he wanted to see a "star" and I was
planning on M4 next). M4 doesn't show particularly well. I showed
off the Mizar Triple, then M51 (didn't show very well either), then
M81/M82 (showed decently), and finally M13 (showed very well). He had
such a good time he's talking about flying down on a new moon weekend
so he can go up to a dark sky site with me.

Lots of fun.