ut all amateur radio purposes, especially as the wave that
propagates precisely along a great circle has yet to be radiated.
-- snip --
Enjoy your ponderings!
Rudolf
- Original Message -
From:
Thaddeus
Weakley
To: sundial@rrz.uni-koeln.de
Sent: Tuesday, February 03,
in the length of a degree of latitude!
Regards
Andrew James
-Original Message-
From: J.Tallman [mailto:[EMAIL PROTECTED]
Sent: 03 February 2004 15:58
To: sundial@rrz.uni-koeln.de
Subject: Re: Oblate Spheroid correction for computing distances?
Hello All,
As previously mentioned, the earth
Dear Thad
As many of us know, we can geometrically compute the distance
between two locations (lat, long) and (lat2, long2) assuming
that the Earth is a perfect sphere (which of course it isn't).
Has anyone seen a correction for this flattening at the poles,
or bowing around the equator?
Hello All,
As previously mentioned, the earth is not a perfect sphere, and is
distorted by the effects of gravity. So, is it "flattened" at the poles, or is
it "elongated" at the equator? Is it a combination of both effects?
I can envision a stretching effect at the poles, and a bulging
Message text written by INTERNET:sundial@rrz.uni-koeln.de
Has anyone seen a correction for this flattening at the poles, or bowing
around the equator? If so, please share.
Jan Meeus (who else??!!) gives such an approximation in Astronomical
Algirithms 2nd Ed. p85. He attributes the equation to
WGS 84 ellipsoid semi-major (equatorial) axis: 6 378 137.0 m
semi-minor (polar) axis: 6 356 752.3142 m
(biaxial ellipsoid or just ellipsoid is the preferred (at least in North
America) term for spheroid)
What kind of differences might you see when comparing great circle
Hello All -
Tony's posting reminds me of a question that I have had for a long time. As many of us know, we call geometrically compute the distance between two locations (lat, long) and (lat2, long2) assuming that the Earth is a perfect sphere (which of course it isn't). Has anyone seen a
