Space exploration began with the launch of Sputnik and Astrophysics was born as the application of physics to the phenomena observed by Astronomy, which etymologically means laws of the stars.
There are 2759 entries in this glossary.| Term | Definition |
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| Zodiac |
A band around the celestial sphere that is imaginary, which lies approximately 9° to each side of the elliptic the perceived annual path of the Sun, in which the Moon and all the planets apart from Pluto sometimes are found. The imaginary band is used in astrology where 12 different names are given that correspond to 12 constellations found in the band.
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