| 1. | The Sun's celestial longitude also varies, changing by one complete revolution per year.
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| 2. | As of 1986 its celestial longitude was 25 Tau . 55'48.
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| 3. | At equinox, the apparent geocentric celestial longitude of the Sun is 0?or 180?
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| 4. | The great square is a good marker of celestial longitude, called right ascension by astronomers.
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| 5. | The ecliptic coordinate system specifies positions relative to the Earth's orbit, using celestial longitude and latitude.
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| 6. | Each sign contained thirty degrees of celestial longitude, thus creating the first known celestial coordinate system.
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| 7. | It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 225?
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| 8. | It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 45?
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| 9. | It begins when the Sun reaches the celestial longitude of 240?and ends when it reaches the longitude of 255?
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| 10. | It begins when the Sun reaches the celestial longitude of 75?and ends when it reaches the longitude of 90?
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