In the parallax method of determining stellar distances, the angle to a star is measured while che earth is on one side of the sun and then again six months later, as in the diagram below. Assume the earth-sun distance is 1 Astronomical Unit. The parallax angle of Alpha Centauri s 0= 2.1 × 10-4 ° . Find the distance from the sun to a Centauri in light years. Assume a eircular orbit for the Earth. a Centauri Earth (June) Earth (December) Sun
In the parallax method of determining stellar distances, the angle to a star is measured while che earth is on one side of the sun and then again six months later, as in the diagram below. Assume the earth-sun distance is 1 Astronomical Unit. The parallax angle of Alpha Centauri s 0= 2.1 × 10-4 ° . Find the distance from the sun to a Centauri in light years. Assume a eircular orbit for the Earth. a Centauri Earth (June) Earth (December) Sun
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Transcribed Image Text:In the parallax method of determining stellar distances, the angle to a star is measured while
the earth is on one side of the sun and then again six months later, as in the diagram below.
Assume the earth-sun distance is 1 Astronomical Unit. The parallax angle of Alpha Centauri
is 0= 2.1 x 10-4 ° . Find the distance from the sun to a Centauri in light years. Assume a
circular orbit for the Earth.
a Centauri
Earth (June)
Earth (December)
Sun
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