Surveying
International Date Line is located along

Standard meridian
Greenwich meridian
Equator
180° longitude

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Surveying
The First Point of Aeries

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

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