Juptier and Saturn are Conjoining to create a Once-in-a-Lifetime Phenomenon TODAY!

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Juptier and Saturn are Conjoining to create a Once-in-a-Lifetime Phenomenon TODAY!

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The December 21, 2020 great conjunction of Jupiter and Saturn is highly conspicuous in the west after sunset each evening now. On December 21, the pair will be only 0.1 degree apart. Some say the pair will look like an elongated star on that date. Will they? Or will they look like a double planet?



Now, here’s why these great Jupiter/Saturn conjunctions happen every 20 years. Each year, Saturn completes about 12 degrees of its orbit around the sun, whereas Jupiter completes about 30 degrees. Therefore, in one year, Jupiter closes the gap between itself and Saturn by about 18 degrees (30 – 12 = 18 degrees). In a period of 20 years, then, Jupiter gains 360 degrees on Saturn (18 x 20 = 360 degrees), therefore lapping the ringed planet once every 20 years.



Skygazers should be ready for the last and most prominent celestial event of the year 2020 as Jupiter and Saturn align in a way that they will appear as one bright star in the night sky on December 21, Monday. What makes this conjunction great is that the two planets of our solar system will come close to the point that they will be separated by just one-tenth of a degree.



Astronomers use the word conjunction to describe meetings of planets and other objects on our sky’s dome. They use the term great conjunction to describe meetings of Jupiter and Saturn, which are the two biggest worlds in our solar system. Though the two planets will appear spectacularly close together on the sky’s dome now, Jupiter and Saturn are actually 456 million miles (734,000 million km) apart. Saturn is nearly twice as far away as Jupiter.



Jupiter-Saturn conjunctions happen every 20 years; the last one was in the year 2000. But these conjunctions aren’t all created equal. The 2020 great conjunction of Jupiter and Saturn will be the closest since 1623 and the closest observable since 1226! 2020’s extra-close Jupiter-Saturn conjunction won’t be matched again until the Jupiter-Saturn conjunction of March 15, 2080.



The two planets have not come closer than this since almost four centuries ago. On July 16, 1623, the two planets were 5’10” (five minutes 10 seconds) from each other compared to 6’06” of arc on December 21. There have been only two more instances where Jupiter and Saturn have come nearly as close as what we will witness this year.



“Conjunctions like this could happen on any day of the year, depending on where the planets are in their orbits,” said Henry Throop astronomer in the Planetary Science Division at National Aeronautics and Space Administration (NASA) Headquarters in Washington.

Google changes its homepage Logo to join the fun!


Read More (NASA'S Official Website):

https://www.nasa.gov/feature/the-great-conjunction-of-jupiter-and-saturn


Thank you for reading xx

  • Published by Kriya Shah,
  • Date- 21/12/2020
  • Title- Juptier and Saturn are Conjoining to create a Once-in-a-Lifetime Phenomenon TODAY!
  • Week-4




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