News on September 30, Beijing time According to foreign media reports, the Hubble Space Telescope has been studying Jupiter’s Great Red Spot in recent years. The latest research results show that the Great Red Spot is shrinking due to some mysterious reasons. At the same time, the Great Red Spot The wind changes and the wind speed gradually becomes faster.
This is a 23-second cycle video of Jupiter’s Great Red Spot, created by Hubble Observation data from the space telescope represents approximately 10 Earth hours (or one Jupiter day) activity.
It takes 12 Earth years for Jupiter to revolve around the sun. During the Jupiter’s orbiting cycle from 2009 to 2020, the wind speed of Jupiter’s Great Red Spot outer ring has increased by 8%, although the wind speed The change depends on the time the Hubble Space Telescope observes the storm, but based on long-term observation data, the Hubble Space Telescope does track the continuous increase in wind speed in the outer ring.
Nowadays, the wind speed in the outer ring of the Great Red Spot often exceeds 100 meters per second (equivalent to 360 kilometers per hour), and 10 years ago, the area often reached 90 meters per second (equivalent to 324 kilometers per hour). In fact, the diameter of the Great Red Spot is even larger than the diameter of the Earth. Astronomers have carried out regular observations of the Great Red Spot for more than 150 years. The earliest observation records can be traced back to the 17th century. Therefore, we have a relatively long period of time for changes in the Great Red Spot. evidence of. Researchers say this is incredible compared to the storm speeds we see on Earth, but on the surface of Jupiter, the typical increase in storm speed is less than 2.6 km/h.
The Hubble Space Telescope’s accuracy and long-term observation records provide sufficient evidence. The relevant software data analysis has tracked tens of thousands to hundreds of thousands of wind vectors (wind direction and speed during the Jupiter observation period). ). Since the Hubble Space Telescope cannot observe the depths of the Great Red Spot storm, researchers are currently working to analyze why there is an increase in wind speed. Anything under the top of the storm cloud cannot be reflected in the data, but this is a very interesting item. The data can help us understand what factors promote the wind acceleration of the Great Red Spot and how it maintains energy.
At present, NASA’s Juno probe is performing survey missions in Jupiter orbit, occasionally the Great Red Spot is observed, but related reports did not specify the Juno observation data Help solve this storm mystery. The Juno mission team has established cooperation with the Hubble Space Telescope and the Gemini Observatory in Hawaii to map Jupiter’s atmosphere and storm conditions. In the future, the Juno probe will also observe the Great Red Spot in depth and draw a depth image of the storm.
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