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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| Orionids |
An annual meteor shower, the multiple radiant of which lies on the border of Orion and Gemini, near the star Gamma Geminorum γ Gem. The peak of the shower occurs around 22 October, and the normal limits are 16-27 October. The shower is produced by meteoroids that have come from Halley’s Comet.
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