Partial lunar eclipse to grace U.K. evening sky

phys.org | 1/10/2019 | Staff
duck.ie (Posted by) Level 3
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Tuesday, 16 July, will see a partial eclipse of the moon, visible in the U.K. after sunset. The eclipse, 50 years to the day after the launch of Apollo 11, will also be seen across a large part of Asia, the whole of Africa, the eastern part of South America, and the western part of Australia.

In a lunar eclipse, the Earth, sun, and moon are almost exactly in line and the moon is on the opposite side of the Earth from the sun. The moon is full, moves into the shadow of the Earth and dims dramatically but usually remains visible, lit by sunlight that passes through the Earth's atmosphere.

Scattering - Light - Light - Surface - Colour

Stronger atmospheric scattering of blue light means that the light that reaches the lunar surface is predominantly red in colour, so for observers on Earth the eclipsed part of the moon may be brick-coloured, rusty, blood red, or sometimes dark grey, depending on terrestrial conditions.

The moon travels to a similar position every month at full moon, but the tilt of the lunar orbit means that it normally passes above or below the terrestrial shadow and no eclipse takes place.

Eclipse - People - UK - Moon - Rise

In the coming eclipse, people in the U.K. will see the moon rise in the southeastern sky...
(Excerpt) Read more at: phys.org
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