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Lunar eclipse. A lunar eclipse is an astronomical event that occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. [1] Such an alignment occurs during an eclipse season, approximately every six months, during the full moon phase, when the Moon's orbital plane is closest to the plane of the Earth's orbit.
As with solar eclipses, the Gregorian year of a lunar eclipse can be calculated as: year = 28.945 × number of the saros series + 18.030 × number of the inex series − 2454.564. Lunar eclipses can also be plotted in a similar diagram, this diagram covering 1000 AD to 2500 AD. The yellow diagonal band represents all the eclipses from 1900 to 2100.
This diagram was created with Inkscape. Description Eclipse vs new or full moons, annotated.svg. English: A diagram illustrating the difference between a full moon and a lunar eclipse, and the difference between a new moon and a solar eclipse. This is caused by the 5° incline of the moon's orbital plane around earth, meaning that an eclipse ...
By the 1600s, European astronomers were publishing books with diagrams explaining how lunar and solar eclipses occurred. [ 26 ] [ 27 ] In order to disseminate this information to a broader audience and decrease fear of the consequences of eclipses, booksellers printed broadsides explaining the event either using the science or via astrology.
File:Lunar eclipse diagram-en.svg. File. File history. File usage. Global file usage. Metadata. Size of this PNG preview of this SVG file: 800 × 467 pixels. Other resolutions: 320 × 187 pixels | 640 × 374 pixels | 1,024 × 598 pixels | 1,280 × 748 pixels | 2,560 × 1,495 pixels | 815 × 476 pixels. Original file (SVG file, nominally 815 ...
Lunar node. The lunar nodes are the two points where the Moon's orbital path crosses the ecliptic, the Sun's apparent yearly path on the celestial sphere. A lunar node is either of the two orbital nodes of the Moon, that is, the two points at which the orbit of the Moon intersects the ecliptic. The ascending (or north) node is where the Moon ...
A lunar phase or Moon phase is the apparent shape of the Moon 's directly sunlit portion as viewed from the Earth (because the Moon is tidally locked with the Earth, the same hemisphere is always facing the Earth). In common usage, the four major phases are the new moon, the first quarter, the full moon and the last quarter; the four minor ...
September's full moon, nicknamed the Harvest Moon, is an exciting one because it doubles as a partial lunar eclipse that peaks on Sept. 17 at 7:44 p.m. PT. Beginning at 6:55 p.m. that night, the ...