Subject: Re: [LPNY DISCUSS] Re: Tides Date: Tue, 23 Sep 2003 22:18:15 -0400 To: From: Bob Armstrong Oops , can anybody spot the error in my last post below ? On Tue, 23 Sep 2003 20:23:00 -0400, Bob Armstrong wrote: >=A0On Tue, 23 Sep 2003 18:30:47 -0400, Don Silberger wrote: >=A0>=A0Actually, guys, the sun DOES revolve around the earth. =A0Both= the >=A0>=A0earth and the sun revolve around their common center of= mass. >=A0>=A0I've not calculated where that might be situated, but my= gestimate >=A0>=A0is that it will be somewhere inside the sun's ``surface", but= nearer >=A0>=A0to that surface than it is to the center of the sun. =A0=A0=A0=A0=A0--= Donald > >=A0From >=A0=A0http://www.windows.ucar.edu/tour/link=3D/our_solar_system/refere= nce_data.html > >=A0=A0the solar mass is 330,000 times that of the earth and they= are >=A0=A0149.6 KM apart ( I assume that is center to center . ) > >=A0So , the center of gravity is >=A0=A0146.6E6 % 330000 />/ 453.33 =A0/ KM from the center of the sun >=A0which is 1.4 million KM in diameter . > >=A0So the center of rotation is of the earth and sun is >=A0only 0.0003238 of the way from the center to the surface . --=A0 =A0Bob Armstrong -- http://CoSy.com -- 212-285-1864 Return our Right to Relax : =A0http://ny.lp.org/cgi-bin/petition.cgi?Against_the_Smoking_Ban