Re: Where is the center of mass of two different size orbiting planets?
- From: "guskz@xxxxxxxxxxx" <guskz@xxxxxxxxxxx>
- Date: Fri, 31 Aug 2007 10:59:41 -0700
On Aug 31, 1:26 pm, "gu...@xxxxxxxxxxx" <gu...@xxxxxxxxxxx> wrote:
Mistake somewhere below:
1. Since T= 2pi sqrt(r^3/G (M+m))
2. therefore if the Mass is different then the orbitng time "T"
should be different for each planet (because "r" is smaller for the
larger planet)
3. If T is different then if we snap a picture of the planets at
different time intervals, the location of center of mass will be
different which is incorrect since it remains the same location at the
following web link:
http://www.astronomynotes.com/starprop/s10.htm
I read at the bottom of that web link and now the center of mass is
"actually" the center of momentum.....which is the center location
where m1v1 = m2v2 ......Well that's just plain cheating.
.
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- Where is the center of mass of two different size orbiting planets?
- From: guskz@xxxxxxxxxxx
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