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Don’t miss Jupiter’s moons and Great Red Spot during May

19 May 2017, 16:56 UTC
Don’t miss Jupiter’s moons and Great Red Spot during May
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This image of Jupiter was taken on 3 April 2017 when the planet was at a distance of 414 million miles (667 million kilometres) from Earth. The NASA/ESA Hubble Space Telescope reveals the intricate, detailed beauty of Jupiter’s clouds as arranged into bands of different latitudes. Lighter coloured areas, called zones, are high-pressure where the atmosphere rises. Darker low-pressure regions where air falls are called belts. Constantly stormy weather occurs where these opposing east-to-west and west-to-east flows interact. The planet’s Great Red Spot (GRS, lower left), is a long-lived storm roughly the diameter of Earth. Oval BA, affectionately referred to as “The Little Red Spot” (lower right), transits roughly 90 minutes ahead of the GRS. Image credit: NASA, ESA, and A. Simon (GSFC).Observers in the heart of the British Isles have already entered that time of the year when astronomical twilight lasts all night. But even if the sky never truly gets dark, take solace in the sight of Jupiter, currently highest in the sky to the south around 10pm BST.
The Solar System’s largest planet is now seven weeks past opposition, but still presents a magnitude -2.3 disc with an angular width of 42 arcseconds. This is means that ...

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