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- Newsgroups: sci.astro
- Path: sparky!uunet!think.com!ames!pacbell.com!well!metares
- From: metares@well.sf.ca.us (Tom Van Flandern)
- Subject: Re: Is P/Swift-Tuttle a Record Breaker?
- Message-ID: <BzoxyE.AF9@well.sf.ca.us>
- Keywords: comet period record apparition
- Sender: news@well.sf.ca.us
- Organization: Whole Earth 'Lectronic Link
- References: <1992Dec22.162358.25585@stortek.com>
- Date: Wed, 23 Dec 1992 02:37:25 GMT
- Lines: 17
-
-
- pg@sanitas.stortek.com (Paul Gilmartin) writes:
-
- > What comets having longer period than P/Swift-Tuttle have been observed
- > on multiple apparitions? The decade uncertainty in the prediction of S-T's
- > current apparition and the difficulty of identifying its 1737 apparition
- > suggest that there might be very few.
-
- The record holder is still Herschel-Rigollet, which appeared in 1788 and
- 1939 (present period 155 years). Swift-Tuttle is now next with a current
- period of 134 years. Comet Halley at 76 years is the third-longest-period
- comet of more than one observed apparition. -|Tom|-
-
- --
- Tom Van Flandern / Washington, DC / metares@well.sf.ca.us
- Meta Research was founded to foster research into ideas not otherwise
- supported because they conflict with mainstream theories in Astronomy.
-