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 > http://www.lpl.arizona.edu/~jscotti/ > > _______________________________________________ > Az-Geocaching mailing list > listserv@azgeocaching.com > http://listserv.azgeocaching.com/mailman/listinfo/az-geocaching > > Arizona's Geocaching Resource > http://www.azgeocaching.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Although no one can go back and make a brand new start, Anyone can start from now and make a brand new ending." ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~