Surveying
Longitude of a place is the angular distance between the meridian of the place and

The International Date Line
That of Greenwich
Both (A) and (C) of above
The standard meridian

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Surveying
The First Point of Aeries

Is the point in the celestial sphere where zero meridian crosses the celestial equator
Is usually denoted by the Greek letter ?
Is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda
All listed here

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