APOD: Venus in Ultraviolet from Akatsuki (2023 Jul 03)

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APOD Robot
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APOD: Venus in Ultraviolet from Akatsuki (2023 Jul 03)

Post by APOD Robot » Mon Jul 03, 2023 4:05 am

Image Venus in Ultraviolet from Akatsuki

Explanation: Why is Venus so different from Earth? To help find out, Japan launched the robotic Akatsuki spacecraft which entered orbit around Venus late in 2015 after an unplanned five-year adventure around the inner Solar System. Even though Akatsuki was past its original planned lifetime, the spacecraft and instruments were operating so well that much of its original mission was reinstated. Also known as the Venus Climate Orbiter, Akatsuki's instruments investigated unknowns about Earth's sister planet, including whether volcanoes are still active, whether lightning occurs in the dense atmosphere, and why wind speeds greatly exceed the planet's rotation speed. In the featured image taken by Akatsuki's UVI camera, the day-side of Venus is seen shown with planet-scale V-shaped cloud pattern. The image displays three ultraviolet colors and indicates a dip in the relative abundance of sulfur dioxide shown in faint blue. Analyses of Akatsuki images and data has shown, among other discoveries, that Venus has equatorial jet similar to Earth's jet stream.

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Re: APOD: Venus in Ultraviolet from Akatsuki (2023 Jul 03)

Post by MelvzLuster » Mon Jul 03, 2023 6:47 am

Great & wonderful, Venus is the Goddess of Beauty while Mother Earth is the Goddess of mankind! <3 O:) * (Y)
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Ann
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Re: APOD: Venus in Ultraviolet from Akatsuki (2023 Jul 03)

Post by Ann » Mon Jul 03, 2023 6:56 am

Don't know what to say about this image, except that it is funny that Venus has a planet-scale V-shaped cloud pattern.

So Venus knows its own name, then? V is for Venus! :lol2:

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Re: APOD: Venus in Ultraviolet from Akatsuki (2023 Jul 03)

Post by Roger Venable » Mon Jul 03, 2023 1:08 pm

I notice that there is an illumination defect on the left, but that the dark crescent of the unilluminated fraction is visible in ultraviolet. What is the source of ultraviolet light from Venus's darkside? (Of course, the dark side is visible in IR, but this is not IR.)

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Re: APOD: Venus in Ultraviolet from Akatsuki (2023 Jul 03)

Post by VictorBorun » Mon Jul 03, 2023 6:17 pm

a dip in the relative abundance of sulfur dioxide shown in faint blue

a dip is shown in blue? Or SO₂ is shown in blue?

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Re: APOD: Venus in Ultraviolet from Akatsuki (2023 Jul 03)

Post by orin stepanek » Mon Jul 03, 2023 10:02 pm

VenusUv_akatsuki_1024.jpg

Small target causes delays! 8-)
0100358.jpg
kitty cat kind of nosey
maat_mons.gif
This mountain looks molten! :spam:
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