APOD: South Pacific Shadowset (2024 Aug 24)

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Expand view Topic review: APOD: South Pacific Shadowset (2024 Aug 24)

Re: APOD: South Pacific Shadowset (2024 Aug 24)

by Ann » Sat Aug 24, 2024 4:40 am

Wow, that's beautiful! :D


I remember seeing something similar, minus the palm trees and the ocean, when a brilliant full Moon was setting seemingly inside a bluish cloud bank below a lovely pink dawn sky. But the Moon shone right through the cloud bank as if the clouds were not there - and they weren't. I knew enough astronomy to know that the blue "clouds" were the sinking shadow of the Earth. Because when dawn breaks, the Earth shadow sinks. And at sunset, when it's getting dark, the shadow engulfs us.

I think the Lady in the Moon is upside down, so this APOD must have been taken at southerly latitudes ( and it was).

APOD 24 August 2024 annotated.png
The Lady in the Moon is upside down!
Ann

APOD: South Pacific Shadowset (2024 Aug 24)

by APOD Robot » Sat Aug 24, 2024 4:07 am

Image South Pacific Shadowset

Explanation: The full Moon and Earth's shadow set together in this island skyscape. The alluring scene was captured Tuesday morning, August 20, from Fiji, South Pacific Ocean, planet Earth. For early morning risers shadowset in the western sky is a daily apparition. Still, the grey-blue shadow is often overlooked in favor of a brighter eastern horizon. Extending through the dense atmosphere, Earth's setting shadow is bounded above by a pinkish glow or anti-twilight arch. Known as the Belt of Venus, the arch's lovely color is due to backscattering of reddened light from the opposite horizon's rising Sun. Of course, the setting Moon's light is reddened by the long sight-line through the atmosphere. But on that date the full Moon could be called a seasonal Blue Moon, the third full Moon in a season with four full Moons. And even though the full Moon is always impressive near the horizon, August's full Moon is considered by some the first of four consecutive full Supermoons in 2024.

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