hour circle


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Related to hour circle: hour angle
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Words related to hour circle

a great circle on the celestial sphere that passes through both celestial poles

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References in periodicals archive ?
If you really want to find out where park models sell," said Breckenridge President and CEO Tim Howard, "draw a two hour circle of driving time around any significant population center and find the lake in that area.
Ours will be the last time zone to be dimmed as Earth Hour circles the globe.