New Hubble Image of Jupiter
« Thread started on: Apr 7th, 2017, 10:22am »
New Hubble image of Jupiter
By Deborah Byrd in Today's Image April 7, 2017
Jupiter is the largest planet in our solar system Ė some 88,789 miles (142,984 km) at its equator. We pass between Jupiter and the sun this week, and Hubble Space Telescope looked its way.
When the Hubble Space Telescope aimed toward Jupiter on April 3, Jupiter was 4.45 Astronomical Units from Earth (415 million miles or 668 million km). Image via NASA/ ESA/ A. Simon (GSFC).
Earth goes between the sun and Jupiter this week, on April 7, 2017. And Jupiter is closer to Earth for this year on April 8. So it was an opportune time, a few days ago, for the Hubble Space Telescope to aim toward Jupiter and capture this beautiful new image. NASA said:
"Hubble reveals the intricate, detailed beauty of Jupiterís clouds as arranged into bands of different latitudes, known as tropical regions. These bands are produced by air flowing in different directions at various latitudes. Lighter colored areas, called zones, are high-pressure where the atmosphere rises. Darker low-pressure regions where air falls are called belts. The planetís trademark, the Great Red Spot, is a long-lived storm roughly the diameter of Earth. Much smaller storms appear as white or brown-colored ovals. Such storms can last as little as a few hours or stretch on for centuries."
Itís easy to see Jupiter now! The planet is the brightest ďstarĒ in the evening sky, brightest thing up all night (with the exception of the moon) until Venus rises shortly before dawn. You canít miss Jupiter. But in case you feel uncertain, you can also follow the arc in the Big Dipperís handle and speed on to Spica, the bright star near Jupiter now on the skyís dome.
Re: New Hubble Image of Jupiter
« Reply #3 on: Apr 17th, 2017, 11:28am »
Discovered with ESO's Very Large Telescope (VLT).
Great Cold Spot discovered on Jupiter
So big it could engulf several Earths, Jupiterís Great Red Spot is a gigantic storm that has been raging for centuries with winds blasting at over 600 kilometres per hour. But it has a rival: astronomers have discovered that Jupiter has a second Great Spot, this time a cold one.
In the polar regions of the planet, astronomers using the CRIRES instrument on ESO's Very Large Telescope, along with other facilities, have found a dark spot in the upper atmosphere (below the aurora to the left) about 200 įC cooler than its surroundings.