[AZ-Observing] Re: Daytime Jupiter
- From: Chris Schur <comets133@xxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Mon, 15 Sep 2008 15:32:05 -0700 (PDT)
Tom I photographed Jupiter last night, it had a dark moon shadow on the disk.
did you see it?
CHris
--- On Mon, 9/15/08, Tom Polakis <tpolakis@xxxxxxx> wrote:
> From: Tom Polakis <tpolakis@xxxxxxx>
> Subject: [AZ-Observing] Daytime Jupiter
> To: az-observing@xxxxxxxxxxxxx
> Date: Monday, September 15, 2008, 12:03 PM
> Yesterday, several of us looked at Jupiter during the day
> without optical aid. I had been looking at it just after
> sunset the previous day, so I know about where to point my
> telescope. After putting the scope on it, we looked through
> the Telrad, and there it was at 6:30 p.m.
>
> The best time to look is in the last half hour before
> sunset. Start by looking due south (usually easy to do in
> Phoenix) about one-third of the way from the horizon to the
> zenith, and then move your gaze about half of this angle (15
> degrees) to the left. The problem is focusing your eyes to
> infinity. Like the lens on my annoying old point-and-shoot
> camera, I just can't switch my eyes' auto-focus off.
> A polarizing filter darkens this part of the sky a lot.
> Alister Ling wrote about daytime Jupiter viewing here.
>
> http://tech.groups.yahoo.com/group/amastro/message/4050
>
> Tom
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