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- Newsgroups: sci.astro
- Path: sparky!uunet!gumby!destroyer!cs.ubc.ca!newsserver.sfu.ca!news
- From: palmer@sfu.ca (Leigh Palmer)
- Subject: Re: Questions about P/Swift-Tuttle
- Message-ID: <1992Nov5.204200.3056@sfu.ca>
- Sender: news@sfu.ca
- Organization: Simon Fraser University
- References: <1992Nov5.081635.1201@horizon.com>
- Date: Thu, 5 Nov 1992 20:42:00 GMT
- Lines: 22
-
- In article <1992Nov5.081635.1201@horizon.com> schriber@horizon.com (Mike
- Schriber) writes:
-
- >Where is Swift-Tuttle visible? What section of the sky (Coords. or
- >what constelation it's in) and about what time of night is it above the
- >horizon?
-
- The comet may be seen at the top of the keystone in Hercules right now, that is
- if it's dark and you don't live in a cloud preserve like BC. :-(
-
- >My other question is a bit more limited. I have a program called Dance of
- >The Planets by ARC. I've tracked Swift-Tuttle with this program and found
- >the comet to be outbound, near the orbit of Mars on 8/14/2126. Dance of
- >the Planets is suposed to be a first rate orbital simulator (Gavitic forces
- >only) and I'm curious as to why it's so far off. Is anyone else using this
- >program that can shed a little light on my mystery?
-
- According to Marsden's calculation the comet will be intersecting Earth's orbit
- fifteen days earlier than the apocalyptic date you've used. Could that be part
- of the problem?
-
- Leigh
-