File:Stellarparallax parsec1.svg
From Infogalactic: the planetary knowledge core
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Summary
Parsec Definition diagram
The apparent motion of a nearby star is a small ellipse in the sky relative to background stars over the period of a year. The viewpoint is defined as the Earth.
The angle representing major axis radius of the elliptical path is the parallax angle.
A parsec is defined as the distance to an object whose parallax angle = 1 arc second.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:32, 5 January 2017 | | 555 × 870 (11 KB) | 127.0.0.1 (talk) | Parsec Definition diagram <p>The apparent motion of a nearby star is a small ellipse in the sky relative to background stars over the period of a year. The viewpoint is defined as the Earth. </p> <p>The angle representing major axis radius of the elliptical path is the parallax angle. </p> A parsec is defined as the distance to an object whose parallax angle = 1 arc second. |
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