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:
“Thus it seemed that this one hillside illustrated the principle of all the operations of Nature. The Maker of this earth but patented a leaf. What Champollion will decipher this hieroglyphic for us, that we may turn over a new leaf at last?”
—Henry David Thoreau (1817–1862)
“It is true, there are the innocent pleasures of country life, and it is sometimes pleasant to make the earth yield her increase, and gather the fruits in their season; but the heroic spirit will not fail to dream of remoter retirements and more rugged paths. It will have its garden-plots and its parterres elsewhere than on the earth, and gather nuts and berries by the way for its subsistence, or orchard fruits with such heedlessness as berries.”
—Henry David Thoreau (1817–1862)
“I’d like to get away from earth awhile
And then come back to it and begin over.
May no fate willfully misunderstand me
And half grant what I wish and snatch me away
Not to return. Earth’s the right place for love:
I don’t know where it’s likely to go better.”
—Robert Frost (1874–1963)