# An extrasolar planet can be detected by observing the wobble it produces on the star around which it

An extrasolar planet can be detected by
observing the wobble it produces on the star around which it revolves. Suppose
an extra solar planet of mass mB revolves around its star of mass mA.
If no external force acts on this simple two-object system, then its cm is
stationary. Assume mA and mB are in circular orbits with

(b) Now consider a Sun-like star and a
single planet with the same characteristics as Jupiter. That is, mB  =
1.0 X 10-3mA and the planet has an orbital radius of 8.0
X 1011 m. Deter mine the radius rA of the star
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An extrasolar planet can be detected by
observing the wobble it produces on the star around which it revolves. Suppose
an extra solar planet of mass mB revolves around its star of mass mA.
If no external force acts on this simple two-object system, then its cm is
stationary. Assume mA and mB are in circular orbits with

(b) Now consider a Sun-like star and a
single planet with the same characteristics as Jupiter. That is, mB  =
1.0 X 10-3mA and the planet has an orbital radius of 8.0
X 1011 m. Deter mine the radius rA of the stars orbit
about the systems cm. (c) When viewed from Earth, the distant system appears
to wobble over a distance of 2rA . If astronomers are able to detect