Lunar eclipse can be seen in the full moon

Lunar eclipse can be seen in the full moon

Lunar eclipse can be seen in the full moon, when the moon falls on its moon (for this the planet must stay between the Sun and the Moon). Since the night star from the Earth separates not less than 363 thousand km, and the diameter of the shadow cast by the planet is two and a half times the diameter of the satellite, when the moon covers the earth’s shadow, it turns out to be completely darkened. This does not always happen: sometimes the shadow closes the satellite partially, and sometimes it does not reach the shadow and is near its cone, in the penumbra, when only a slight darkening of one of the edges of the satellite is noticeable. Therefore, in the lunar calendars, the degree of darkening is measured in values from 0 and 0: Colored lakes of Kelimutu volcano 43094.670 The beginning and end of the partial (partial) period of the eclipse is 0; The beginning and end of the partial phase are from 0.25 to 0.75; The beginning and end of the total eclipse period is 1; The period of the highest phase is 1.005. Lunar Sites One of the indispensable conditions necessary for the onset of a full lunar eclipse is the proximity of the Moon to the node (at this point the lunar orbit intersects with the ecliptic). Since the plane of the orbit of the night light is inclined to the plane of the earth’s orbit at an angle of five degrees, the satellite, crossing the ecliptic, moves toward the North Pole, reaching which turns in the opposite direction and moves down towards the South. The points where the satellite’s orbit intersects with the points of the ecliptic are called lunar nodes. When the Moon is near the node, you can see a total lunar eclipse (usually every six months). It is interesting that for the lunar nodes it is uncharacteristic to permanently stay at one point of the ecliptic, as they constantly shift along the line of the constellations of the Zodiac against the course of the Sun and Moon, making one revolution in 18 years and 6 months. Therefore, it is best to determine when the nearest full lunar eclipse will occur according to the calendar. For example, if they were in November and May, next year they will occur in October and April, then in September and March. When there is a wondrous phenomenon If the orbit of the Moon coincided with the ecliptic line all the time, eclipses would pass every month and would be absolutely common. Since the satellite is mostly above or below the Earth’s orbit, the shadow of our planet covers it two, a maximum of three times a year. At this time, the new or full Moon is just near one of its nodes (within twelve degrees on both sides), and the Sun, Earth and Moon are on the same line. In this case, one can first see the eclipse of the Sun, and two weeks later, during the full phase of the Moon – the lunar (these two types of eclipse always go in pairs). It happens that the lunar eclipse does not come at all: it happens when the Sun, the Earth and the Moon do not appear on the same straight line at the right time, and the earth’s shadow passes by the satellite, or touches it with penumbra. True, the event is practically indistinguishable from the Earth, since the brightness of the satellite at this time decreases only slightly and can be seen only through telescopes (if the moon, being in a half-shadow eclipse, passes very close to the shadow cone, one can see a slight darkening on one side) . If the satellite is only partially in the shadow, a particular lunar eclipse occurs: a part of the heavenly body becomes dark, the other remains in the penumbra and is illuminated by the sun’s rays. How the eclipse occurs Since the shadow of the Earth is much larger than the satellite, it takes sometimes a long time for the night star to pass it, so a total lunar eclipse can last as a very short time, about four to five minutes, and more than an hour (for example, the maximum recorded duration of the phase the night of the lunar eclipse was 108 minutes). The duration of this phenomenon will largely depend on the location of each of the three heavenly bodies. If you watch the Moon from the northern hemisphere, you can see that the earth’s penumbra covers the Moon on the left side. Half an hour later, the satellite of our planet is completely in the shade – and on the night of the lunar eclipse the luminary acquires a dark red or brown shade. The sun’s rays illuminate the satellite even during a total eclipse and, along a tangent line, pass over the earth’s surface, dissipate in the atmosphere, reaching the night luminary. Since red has the longest wave, unlike other colors, it does not disappear and reaches the lunar surface, highlighting it in red, the shade of which largely depends on the state of the earth’s atmosphere at the moment. The brightness of the satellite on the night of the lunar eclipse is determined by the special scale of the Danjon: 0 is the total lunar eclipse, the satellite will be almost invisible; 1 – The moon is dark gray; 2 – Earth satellite of gray-brown color; 3 – the moon is characterized by a reddish-brown shade; 4 – a satellite of copper-red color, can be seen very clearly and all the details of the lunar surface are well distinguished. If you compare the photos that were shot on the night of the lunar eclipse in a different period, you can see that the color of the moon is different. For example, the satellite of the Earth during the summer eclipse of 1982 was red, whereas in the winter of 2000 the moon was of brown color.


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