Grand tour of the outer solar system with Hubble pictures – archyde

The planets in our solar system are not static. Like the earth, the other planets are also subject to seasonal fluctuations with atmospheric changes that occur throughout the year. This is why the Hubble Space Telescope takes pictures of the outer planets of our solar system – Jupiter, Saturn, Uranus, and Neptune – every year so astronomers can see how they change over time.

NASA / ESA’s Hubble Space Telescope has completed its annual grand tour of the outer solar system for 2021. Note: The planets are not shown to scale in this picture.

The pictures of this year’s “Grand Tour” of the outer solar system have just appeared and show the gas giants and ice giants that differ so greatly from the inner rock planets Mercury, Venus, Earth and Mars. These outer planets are much larger, and because they are so much farther from the Sun – the most distant, Neptune, orbits 30 times the distance between the Earth and the Sun – they are also extremely cold. They are also made of different materials and are made of what the European Space Agency describes as “cool gaseous soups made of hydrogen, helium, ammonia, methane and other trace gases around a packed, intensely hot, compact core.”

This year’s images show the ever-changing atmosphere of Jupiter, with new storms regularly popping up, forming shapes known as barges. Another function shown in the picture is the “Red spot jr.”, A minor blot that appeared under Jupiter’s famous Great Red Spot.

“Every time we receive new data, I am blown away by the image quality and the details of the cloud functions.” called Amy Simon of the Goddard Space Flight Center in Greenbelt, Maryland. “It strikes me when I look at Jupiter, in the barges or in the red band directly below, you can see cloud structures that are significantly lower. We see a lot of structure and vertical depth variations here. “

Saturn is approaching autumn in its northern hemisphere where there are color changes in its bands, and in the southern hemisphere you can see the remnants of winter in blue color around the planet’s south pole.

“We can do that best with Hubble. With Hubble’s high resolution, we can narrow things down to which band is actually changing, ”said Michael Wong of the University of California, Berkeley. “When you look at this through a ground-based telescope, our atmospheres become a little blurry and you lose some of those color variations. Nothing from the ground will get such sharp visible light images as Hubble’s. “

Finally, Uranus and Neptune are also showing changes, with the bright north pole of Neptune caused by ultraviolet radiation and a dark northern hemisphere of Uranus and a dark spot moving around the planet.

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