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Glossary of Terms

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Early Stone Age, roughly 40,000-12,000 years B.C.E. Demarked by hunter-gatherer societies.

The apparent shift of a nearby object against a more distant background, when viewed from two separeate points.

3.26 light years. One parsec is the distance in which a star would have a parallax of one second of arc.
passage grave

Neolithic burial monuments in ancient Ireland, whose forms bore similarities to birth chambers, and may well have honored both death and re-birth.

The point in its orbit around the Earth at which an object is closest to the Earth.

The point in the path of an object orbiting the Sun where it is closest to the Sun.

Also known as "rock art", these are prehistoric carvings into rock. In many cases, may be a form of writing.

Prehistoric rock art, often of symbolic meaning.

The final constellation in the Greek-based zodiac.

Planets are large, solid, spherical masses which revolve around a star, typically in near-circular orbits.

A star cluster in Taurus, known as the Seven Sisters, although only six stars are readily visible.

The ninth planet out from the Sun, it was discovered in 1930. Its eccentric orbit often takes it closer to the Sun than Neptune's.

Currently the North Star, it is the final star at the handle of the Little Dipper.
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Created by Searles and Deborah O'Dubhain,
Copyright 1996 by The Summerlands, Inc., All rights reserved
Page last updated:
08/30/98 03:56 PM