[Az-Geocaching] A comment......:-)

[listserv@azgeocaching.com]

Jim, I just wanted to tell you that you absolutely fascinate me (I
like astronomy) and enjoy this particular "off-topic" information! I
sure hope you continue to educate and amaze me, and hopefully others,
and that nobody minds that it isn't "geocaching" talk....Thanks so
much!!!! :-))))
Trisha "Lightning"
Prescott


Jim Scotti wrote:

> 
> On Thu, 5 Dec 2002, Jim Stamm wrote:
> 
> > Yes, I heard Levy's program, but didn't realize that it was a
> repeat.  No 
> > wonder I wasn't able to find the comet's elements.  If I recall,
the 
> > orbit is more like an asteroid's, but at Jupiter's distance.  How
> bright 
> > does Comet Scotti get?
> 
> There are 2 comets Scotti out there, both short period comets (which
> means
> they orbit the sun in orbits that take less than 200 years, actually
> 11.5
> years for one, just over 7 years for the other).  Neither of them get
> particularly close to the sun (4 AU for one, 2.5 AU for the other -
an
> AU is
> the mean distance of Earth from the sun, 93 million miles or 150
> million
> kilometers).  Neither will get particularly bright either, probably
at
> best
> between about 16th and 20th magnitude (the faintest you can see with
> the
> unaided eye is about 6th magnitude and each magnitude is about 2.5
> times
> fainter so it would take a decent telescope to see....).
> 
> Jim.
> 
> Jim Scotti                              
> Lunar & Planetary Laboratory         jscotti@pirl.lpl.arizona.edu 
> University of Arizona                
> Tucson, AZ 85721 USA                
> <a
href="http://mail.brasher.com/jump/http://www.lpl.arizona.edu/~jscotti">http://www.lpl.arizona.edu/~jscotti</a>/    
> 
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