Earth
As of 2012 the most used prime meridian for the Earth is the IERS Reference Meridian (IRM). It passes about 5.3 arcseconds east of Airy's transit circle or about 102 metres (335 ft) at the latitude of the Royal Observatory, Greenwich, London. A current convention on the Earth uses the opposite of the IRM as the basis for the International Date Line.
Read more about this topic: Prime Meridian
Famous quotes containing the word earth:
“What potent blood hath modest May;
What fiery force the earth renews,
The wealth of forms, the flush of hues;
Joy shed in rosy waves abroad
Flows from the heart of Love, the Lord.”
—Ralph Waldo Emerson (1803–1882)
“There is nothing on earth so easy as to forget, if a person chooses to set about it. I’m sure I have as much forgot your poor, dear uncle, as if he had never existed; and I thought it my duty to do so.”
—Richard Brinsley Sheridan (1751–1816)
“The earth is the Lord’s, and the fullness thereof; the world, and
they that dwell therein.”
—Bible: Hebrew Psalm XXIV (l. XXIV, 1)