Glossary term: Solar Eclipse

Redirected from Partial Solar Eclipse

Description: A solar eclipse happens when the disk of the Moon covers the disk of the Sun as it appears in the sky, and from space we can see the shadow of the Moon covering an area on Earth. For this to happen, Earth, the Moon, and the Sun should be on the same line, and the Moon between Earth and the Sun. The darkest point of the shadow of the Moon on Earth is called the "umbra" (thus giving total solar eclipse, only if the Moon appears to be the same size as the Sun in the sky) and the edge of the shadow is called the "penumbra" (thus giving partial solar eclipse). An annular solar eclipse happens when the apparent size of the Moon is smaller than the Sun, due to its movement around Earth in an elliptical orbit.

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Term and definition status: This term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".

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The Moon appears as a black circle, blocking light from the Sun. A faint glow from the Solar corona surrounds the Moon.

Total Solar Eclipse

Caption: This image represents the total solar eclipse as observed from Kurigram in Bangladesh. Solar eclipses occur when the moon, as seen from earth, passes in front of the Sun. The moon is much smaller than the Sun, it is closer by the night amount that the angular diameters of the Sun and moon are almost the same (~approximately 1/2 a fingertip). Therefore, the moon can cover up the Sun's disk when it passes directly between the Sun and the Earth. The ring of light around the black circle is called the corona.
Credit: Lutfar Rahman Nirjhar credit link
License: CC-BY-3.0 Creative Comments Attribution 3.0 Unported icons