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The Astronomical Planet
Earth

The Astronomical Planet EarthEarth, our home planet, is the only planet in our solar system known to harbor life that is incredibly diverse. All of the things we need to survive are provided under a thin layer of atmosphere that separates us from the uninhabitable void of space.

Earth is made up of complex, interactive systems that are often unpredictable. Air, water, land, and life - including humans - combine forces to create a constantly changing world that we strive to understand.

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Planetary Statistics of Earth
Chronology of Earth
Environment of Earth
Moon of Earth
Images and Information

Planetary Statistics of Earth:

Earth: Third Planet from the Sun
Diameter:  7,926.41 miles
Distance from the Sun: 92,955,820 miles
Planetary Year:  365.26 Earth days to make one complete revolution around the Sun.
Planetary Day:  23.56 Earth hours to make one complete revolution on its axis.
Temperature: Mean; 248 K (-55 C, -67 F), surface temperature extremes  - 185 K (-88 C, -127 F) to 311 K (58 C, 136 F)
Moonsthe Moon 

Chronology of Earth

The Earth is 4.5 to 4.6 billion years old. The oldest known rocks and formations are about 4 billion years old. Rocks older than 3 billion years are quite rare. Any fossils of living organisms found are less than 3.9 billion years old. To date there has been no record of the period when life was first getting started.

By astronomical standards the Earth's surface is quite young. Unfortunately, in a relatively short period, about 500,000,000 years, natural erosion and tectonic processes destroy and recreate most of the Earth's surface. As a result, almost all traces of early history, geologic or otherwise has been erased.

The Etymology of the name "Earth" is not rooted in Greek or Roman mythology. In actuality, it is derived from the old languages of English and German. However, it does have mythological names. In Roman Mythology, it was Tellus or "goddess of the Earth." To the Greeks it was "Gaia."

Between 276-194 BCE, Eratosthenes, a Greek scholar, became the first person to determine the circumference of the Earth. by comparing the midsummer's noon shadow between two known locations, he properly assumed that the Sun's rays are virtually parallel (since the Sun is so far away). Knowing the distance between the two locations, he closely calculated the circumference of the Earth. He also accurately measured the tilt of the Earth's axis and the distance to the sun and moon.

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"God created the stars and the heaven for more than the sake of beauty. He gave them to us for interpretation so that we may live a more productive life. Man is superior to the stars if he lives in the power of superior wisdom. Such a person, being the master over heaven and earth, by means of his will, is a Magus, and magic is not sorcery but supreme wisdom."
-- Paracelsus

Free Astrology Oracle

"Why did not somebody teach me the constellations and make me at home in the starry heavens, which are always overhead, and which I don't half know to this day?"
-- Thomas Carlyle

The Metaphysical Shopping Mall 

"All anyone can see in a birthchart are tendencies that will become facts if he does not do something to alter them."
--Isabel Hickey

Urania's Zodiac Sun Sign Jewelry
"We shall not cease from exploration, and the end of all our exploring will be to arrive where we started and know the place for the first time."
-- T.S. Eliot


The Metaphysical Dictopedia

"My evenings are taken up very largely with Astrology. I make horoscopic calculations in order to find a clue to the core of psychological truth."
-- C.G. Jung
 

CURRENT MOON

"Astrology is Astronomy brought to Earth and applied to the affairs of men."
-- Ralph Waldo Emerson 
 

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"It is clearly evident that most events of a widespread nature, draw their causes from the enveloping heavens."
-- Ptolemy

Tarotology 

"The power of the spiritual forces of the universe... how active it is everywhere! Invisible to the eyes and impalpable to the senses, it is inherent in all things, and nothing can escape its operation."
-- Confucius

Not-Of-This-Earth 

“A physician without a knowledge of Astrology has no right to call himself a physician”
-- Hippocrates

Muse Of The Zodiac 

"Courteous Reader, Astrology is one of the most ancient Sciences, held in high esteem of old, by the Wise and the Great. Formerly, no Prince would make War or Peace, nor any General fight in Battle, in short, no important affair was undertaken without first consulting an Astrologer."
-- Benjamin Franklin