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Greenwich hour angle |
Also found in: Acronyms | 0.01 sec. |
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Greenwich hour angle [′gren·ich ′au̇r ¦aŋ·gəl]
(astronomy) Angular distance west of the Greenwich celestial meridian; the arc of the celestial equator, or the angle at the celestial pole, between the upper branch of the Greenwich celestial meridian and the hour circle of a point on the celestial sphere, measured westward from the Greenwich celestial meridian through 360°. Abbreviated GHA. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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