Practical teaching
Written by: Li Jialiang
2020-06-04 14:00
Last update date: 2020-06-04 14:00[The penumbral lunar eclipse will be staged on June 6, 2020] There will be a special celestial phenomenon to watch in June! This Saturday (June 6th) will be the second penumbral eclipse of the year. See when and where to watch it.
What is Penumbral Eclipse?
To dismantle the "Half Shadow Lunar Eclipse", we must first talk about the formation of the "Lunar Eclipse." When the sun, the earth, and the moon are exactly or almost in the same line (the earth is between the sun and the moon), the sun's light shining on the moon will be partially or completely covered by the earth, resulting in a "lunar eclipse."
There will be a "Half Shadow Lunar Eclipse" this Saturday. (Space Museum)
"Lunar eclipse" can be divided into "lunar partial eclipse", "full lunar eclipse" and "penumbral eclipse". When only part of the moon enters the umbra of the earth, there will be a "lunar eclipse"; when the entire moon enters the umbral of the earth, there will be a "lunar eclipse"; when the moon is just passing through the penumbra of the earth, causing the lunar surface The dimming of the light is the "penumbral eclipse."
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Penumbral eclipse viewing time
This "Lunar Eclipse" starts at 1:43 am on Saturday (June 6) and ends at 5:07 am. The time and details of "Eating Very" can be seen in the figure below:
Best viewing location
If the weather permits, you can watch the lunar eclipse in most places facing obstacles in the southwest.
Weather forecast
According to the nine-day weather forecast of the Hong Kong Observatory, there were one or two showers on Friday (June 5), and there were heavy showers and squally thunderstorms on Saturday (June 6) in the morning. It is unknown whether it would affect the viewing of the "Half Moon Lunar Eclipse."
(observatory)
Of course, under the epidemic situation of COVID-19 new coronavirus pneumonia, it is not recommended that you go out together to watch, but if you want to go out to watch, remember to bring rain gear.
If you miss this penumbral lunar eclipse , you still have the chance to watch it again in 2020. For details, please see the picture below:
Know more: Why must the lunar eclipse be around the 15th day of the lunar calendar?
When "lunar eclipse", in terms of the earth, the direction of the sun and the moon is 180 degrees, so the lunar eclipse must occur in "wang" (that is, around the 15th day of the lunar calendar). Since the orbits of the sun and the moon in the sky (the zodiac and the white channel) are not on the same plane, but have an intersection angle of about 5 degrees, only the sun and the moon are located near the two intersections of the zodiac and the white channel In a straight line, a "lunar eclipse" occurs.
(Space Museum)
Is the red moon a bad omen?
Although it is said that the "Blood Moon" is not auspicious, the red moon is actually a natural phenomenon. When sunlight passes through the earth's atmosphere, blue light will be scattered, and through the refraction effect of the earth's atmosphere, the red light in the sunlight will deflect to the surface of the moon without direct sunlight, so the moon is dark red during a total lunar eclipse, not because it is not auspicious Caused by.
Source of rice: Space Museum, Taiwan Central Meteorological Administration
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