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Because the Moon continuously blocks the view of a half-degree-wide circular area of the sky, [l] [219] the related phenomenon of occultation occurs when a bright star or planet passes behind the Moon and is occulted: hidden from view. In this way, a solar eclipse is an occultation of the Sun.
The instantaneous Earth–Moon distance, or distance to the Moon, is the distance from the center of Earth to the center of the Moon. In contrast, the Lunar distance ( LD or Δ ⊕ L {\textstyle \Delta _{\oplus L}} ), or Earth–Moon characteristic distance , is a unit of measure in astronomy .
The Moon's elongation is its angular distance east of the Sun at any time. At new moon, it is zero and the Moon is said to be in conjunction. At full moon, the elongation is 180° and it is said to be in opposition. In both cases, the Moon is in syzygy, that is, the Sun, Moon and Earth are nearly aligned.
Comparison of angular diameter of the Sun, Moon and planets. To get a true representation of the sizes, view the image at a distance of 103 times the width of the "Moon: max." circle. For example, if this circle is 5 cm wide on your monitor, view it from 5.15 m away.
Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 ... The impactor created the Schrödinger basin, which is nearly 200 miles (320 kilometers) wide, while ...
Blue Ghost aims to touch down in a 350-mile-wide basin on the near side of the moon (the side that always faces Earth). The region is thought to be the site of an ancient asteroid impact, ...
Ben Bussey and Paul Spudis, The Clementine Atlas of the Moon, Cambridge University Press, 2004, ISBN 0-521-81528-2. Antonín Rükl, Atlas of the Moon, Kalmbach Books, 1990, ISBN 0-913135-17-8. Ewen A. Whitaker, Mapping and Naming the Moon, Cambridge University Press, 1999, ISBN 0-521-62248-4.
Based on its brightness, astronomers estimate it is between 130 and 300 feet wide. ... that there was still a 1.7% chance that 2024 YR4 would impact the Moon on Dec. 22, 2032.