Eclipse
Eclipse is a term used in astronomy to describe the event when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer. This can be the result of a planet (including Earth) passing through the shadow of another planet, or a planet's moon passing in front of the planet.
Types of Eclipses[edit | edit source]
There are four types of eclipses: solar eclipse, lunar eclipse, appulse, and occultation.
Solar Eclipse[edit | edit source]
A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partially obscuring Earth's view of the Sun.
Lunar Eclipse[edit | edit source]
A lunar eclipse occurs when the Moon passes directly behind Earth and into its shadow. This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned, with Earth between the other two.
Appulse[edit | edit source]
An appulse is an astronomical term that refers to the closest approach of one celestial object to another, as viewed from a third body.
Occultation[edit | edit source]
An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer.
Historical Significance[edit | edit source]
Eclipses have been of significant importance in the history of science, particularly in the development of astronomy. They have been used to test and confirm scientific theories, such as Einstein's theory of general relativity.
Safety[edit | edit source]
Viewing a solar eclipse without suitable eye protection can lead to eye damage or even blindness. Special eclipse glasses or handheld solar viewers are required to safely observe a solar eclipse.
See Also[edit | edit source]
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