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A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially. Such an alignment occurs approximately every six months, during the eclipse season in its new moon phase, when the Moon's orbital plane is closest to the plane of Earth's orbit. [1]
The oldest known published drawing of a camera obscura is found in Dutch physician, mathematician and instrument maker Gemma Frisius’ 1545 book De Radio Astronomica et Geometrica, in which he described and illustrated how he used the camera obscura to study the solar eclipse of 24 January 1544 [48]
File:Solar eclipse.svg. Size of this PNG preview of this SVG file: 325 × 599 pixels. Other resolutions: 130 × 240 pixels | 260 × 480 pixels | 417 × 768 pixels | 556 × 1,024 pixels | 1,111 × 2,048 pixels | 451 × 831 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.
A home-made pinhole camera lens. A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura ...
A symbolic orbital diagram from the view of the Earth at the center, showing the Moon's two nodes where eclipses can occur. Up to three eclipses may occur during an eclipse season, a one- or two-month period that happens twice a year, around the time when the Sun is near the nodes of the Moon's orbit. An eclipse does not occur every month ...
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Solar prominences can be seen along the limb (in red) as well as extensive coronal filaments. An eclipse is an astronomical event which occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer.
English: This diagram explains why the penumbra of a solar eclipse is approximately twice the size of the Moon. Since the Sun and Moon have nearly the same angular diameter, the umbra is reduced to nearly a single point in length.