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- From: han@legs.gps.caltech.edu (Hari Nair)
- Newsgroups: alt.sci.planetary
- Subject: Re: Solar eclipse Question
- Date: 22 Jan 1993 18:05:58 GMT
- Organization: California Institute of Technology, Pasadena
- Lines: 23
- Sender: Hari Nair
- Message-ID: <1jpd27INNba6@gap.caltech.edu>
- References: <1jp9fbINN9nj@gap.caltech.edu>
- NNTP-Posting-Host: legs.gps.caltech.edu
-
- In article <1jp9fbINN9nj@gap.caltech.edu> leroy@cluster.gps.caltech.edu (Stephen Leroy) writes:
- >
- >Since the moon is not in the Earth's orbital plane, we don't get eclipses
- >every 29 days. I don't even think the moon is in the Earth's equatorial
- >plane, otherwise we would get eclipses only at or very near equinoxes.
- >Perhaps someone will find for us the moon's inclination to the equatorial
- >plane in the Astro. Almanac?.
- >--
- >Stephen Leroy | Disclaimer: Caltech knows
- >Division of Geological and Planetary Science | better than to take
- >California Institute of Technology | responsibility for what I
- >leroy@(cluster,satur1).gps.caltech.edu | may claim.
-
- The moon's orbit is inclined to the Earth's orbital plane by about five
- degrees, so the only time we get a solar eclipse is when the moon crosses
- the ecliptic (twice a month) AND the Sun happens to be in the same place!
- Thus they only occur a few times a year. Steve, didn't they teach you
- anything in GE103?
-
- Hari Nair
- han@cluster.gps.caltech.edu
-
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-