| 1. | See " hour angle " in the Glossary of the Astronomical Almanac.
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| 2. | The hour angle of the vernal point is, by definition, the observer's sidereal time.
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| 3. | I almost have it, but I have a question about " local hour angle ".
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| 4. | It is conflating hour angle with something else.
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| 5. | But these equations depend only on the observer's latitude, hour angle, and delta ( the declination ).
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| 6. | The latitude of the geographic position is called declination, and the longitude is usually called the hour angle.
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| 7. | This formula calculates the'True Hour Angle'which is compared to the assumed longitude providing a correction to the assumed longitude.
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| 8. | It has the capability of reading off the latitude, hour angle, and azimuth without computation thereby eliminating mathematical errors.
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| 9. | A ship's bearing was determined by settings of the astronomical triangle consisting of declination, latitude, altitude, hour angle, and azimuth.
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| 10. | It is designed to give immediately the azimuth and hour angle by observation of the altitudes of the heavenly bodies.
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