Re: Titan Shadow Transit - Tomorrow night (30-May-09)

From: Steve Gottlieb ^lt;astrogottlieb_at_No-Spam>
Date: Fri May 29 2009 - 14:48:34 PDT

I may have accidentally hit "send" before finishing the note.

Yes, there is definitely a shadow transit of Titan on Saturday
night. These are quite rare events (as opposed to Jupiter's moons
which regularly transit) but it's definitely doable in good seeing
and moderately high power. I've viewed two of these transits in the
past couple of months and will try again on Saturday. It doesn't
take a large aperture. The shadow was immediately visible at 175x
using a 6" mask on my 18-inch Starmaster. At full aperture I could
"resolve" the shadow into a small disc at 300x. Although the event
may "start" (ingress) at 9:24, you can view it for the next couple of
hours -- it takes over 5 hours for the shadow to leave Saturn.

Steve

On May 29, 2009, at 1:09 PM, Shane Raney wrote:

> Any Idea what magnification one might need to see this?
>
> - Shane
> ---------------------------------------
> 1. break nothing but silence
> 2. take nothing but pictures
> 3. leave nothing but footprints
> ----------------------------------------
>
> On Fri, May 29, 2009 at 12:13 PM, Jeff Gortatowsky
> <indanapt@No-Spam> wrote:
>>
>> I don't have my planetarium program handy but I believe at about
>> 04:24 May 31 2009UT which is 9:24pm tomorrow night there is a
>> shadow transit of Titan. We've had pretty heavy marine layer
>> clouds this past week so I am not sure I'll be able to see it, but
>> I am hopeful... Just thought I'd give a heads up and if someone
>> can confirm via Starry Night Pro or the like, that be cool. If I
>> am wrong.... like Gilda said, "Never mind."
>>
>>
>> ---------------------------------------
>> Jeff Gortatowsky, Fullerton, CA
>> Twitter: faintfuzzyfindr Yahoo: indanapt Live: gdjsky01
>>
>>
>> "Of course there is no empirical evidence that smaller government
>> works better and more efficiently than bigger government since
>> that experiment has yet to be done. However there is ample
>> empirical evidence of the failures of the latter."
>>
>> ---
>>
>> May 20, 2009: TAC Web Page Updated http://observers.org/TAC.cgi/
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> ---
>
> May 20, 2009: TAC Web Page Updated http://observers.org/TAC.cgi/
> Announcements/
> GSSP is coming - June 20th: http://
> www.goldenstatestarparty.blogspot.com
> TAC mailing list - to join, manage, or leave: http://
> nine.pairlist.net/mailman/listinfo/tac

---
May 20, 2009: TAC Web Page Updated http://observers.org/TAC.cgi/Announcements/
GSSP is coming - June 20th: http://www.goldenstatestarparty.blogspot.com
TAC mailing list - to join, manage, or leave: http://nine.pairlist.net/mailman/listinfo/tac
Received on Fri May 29 14:48:50 2009
 
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