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Solar Eclipse
An eclipse is a phenomenon of the universe where one celestial body passes into the shadow of another, blocking or obscuring its light. Eclipses are possible when the Sun, Moon, and Earth align themselves in space.
1.0What is a Solar Eclipse?
A solar eclipse is a distinct phenomenon that occurs when the Moon comes between the Earth & the Sun, blocking light from the Sun to shine on the Earth. This can only occur at the new moon phase when the Sun, Moon, & Earth are in alignment in a straight line. During this period of a solar eclipse, the Moon casts a shadow on the surface of Earth that temporarily causes daytime darkness.
2.0Types of Solar Eclipse
Total Solar Eclipse
The total solar eclipse is when the Moon covers the Sun completely, thereby blocking all
the sunlight. The observers who are within the umbra will experience total darkness, and the corona, the outer atmospheric layer of the Sun, becomes visible as a glowing ring around the Moon.
Partial Solar Eclipse
A partial solar eclipse occurs when only a part of the Sun is covered by the Moon. Observers outside of the umbra but within the penumbra will perceive the Sun as a crescent or sliver.
Annular Solar Eclipse
The annular solar eclipse always takes place when the Moon is way farther from Earth and appears smaller in comparison to the Sun. This results in the Sun manifesting as a bright ring, known as the Ring of Fire, encircling the dark disk of the Moon.
Key Points
1. In the context of Eclipses (both solar and lunar), Umbra and Penumbra are terms used to describe the different regions of the shadow cast by an opaque object (such as the Moon) when it blocks the light of a source (such as the Sun).
2. Umbra: It is the darkest part of the shadow that the moon casts on Earth during a solar Eclipse.
3. Penumbra (Partial Shadows): Penumbra is a much lighter outer part of the shadow in which the sun is only partially blocked by the Moon.
3.0New Moon and Solar Eclipse
A solar eclipse could occur only during the new moon when the Moon is located in between the Earth and the Sun. However, not all the new moons produce a solar eclipse because the Moon orbits Earth at an angle of 5 degrees, thus mostly passing over or below the Sun and avoiding the sun's path.
The new moon solar eclipse is when the Moon is perfectly aligned with Earth and the Sun, causing a total or partial covering of the Sun.
4.0Next Solar Eclipse
The next solar eclipse varies depending upon the location you live in the world. Solar eclipses are not a common phenomenon in some regions. For example, a Total Solar eclipse is visible in a specific region once every several decades, but partial solar eclipses are more frequent than its counterpart.
Eclipse calendar or astronomical predictions based on your geographical location can help you find the next solar eclipse.
5.0Lunar Eclipse and Solar Eclipse
- A solar eclipse is the time when the Moon comes between the Earth & the Sun, while a lunar eclipse occurs whenever the Earth comes in between the Sun and the Moon, resulting in the Earth's shadow falling on the Moon.
- Lunar eclipses may be viewed from anywhere on the night side of the Earth, while solar eclipses are visible only from a specific location on the Earth where the Moon's shadow falls
6.0Impact of Solar Eclipse
1. Effects on Temperature: There is a marked, brief temperature drop during a total solar eclipse when the Sun's light is obscured.
2. Effects on Tides: The Moon's gravitational pull strengthens high tides but weakens low tides during a solar eclipse.
3. Observation of the Sun's Corona: A total solar eclipse allows scientists to study the Sun's corona(outermost layer of the Sun’s atmosphere. It is a faint, less dense, and gaseous region but much hotter than the surface of the Sun) and solar activity that is not easily revealed in detail under other circumstances.
4. Effect on Wildlife: Some creatures get confused during an eclipse. Some daytime creatures will act as if it's dusk or nightfall time.
5. Human Behavior and Culture: Historically, solar eclipses have brought superstitions and cultural events, with people believing them to be omens or mystical events.