Chapter 34, Problem 19PE

### College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

Chapter
Section

### College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

# Distances to the nearest stars (up to 500 by away) can be measured by a technique called parallax, as shown in Figure 34.26. What are the angles θ 1 and θ 2 relative to the plane of the Earthâ€™s orbit for a star 4.0 by directly above the Sun?

To determine

The angles θ1 and θ2 relative to the plane of the Earth's orbit.

Explanation

Given:

The given figure is shown below.

â€ƒâ€ƒ

Length of perpendicular = 4â€‰ly

Length of Base = 1.58Ă—10-5Â ly

Formula Used:

â€ƒâ€ƒÎ¸1=â€‰Î¸2=Â tan-1(Perpendicularbase)

Calculation:

Consider Î¸1 and Î¸2 are equal,

Substituting the values in above equation we get,

â€ƒâ€ƒÎ¸

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