Great Conjunction of Jupiter and Saturn

Great Conjunction Jupiter Saturn (Christmas star)

  • One of the important astronomical events will take place on the night of 21 December 2020.
  • Jupiter and Saturn two gas giants of the solar system will be just at 0.06 degrees apart, which forming an incredible event for the astrologers known as “Double planet”. 
  • The last time they were so close back on July 16, 1623, 800 years later, almost four centuries ago.
  • Double planet (The term of the double planet is described as an astrological term in which two planets orbits each other about a common center of mass that is not located within the interior of either planet).
  • Jupiter takes 11.86 years for the revolution and on the other hand, Saturn takes 29.5 years for the revolution.
  • The conjunction situation between Jupiter and Saturn takes place periodically approximately every 19 – 20 years and seven months. 21 December conjunction is very special because at this time they will be just 0.06 degrees apart.
  • The last time great conjunction happened back on March 4, 1226.
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Location of the View

  • The view of great conjunction is visible across the world. The best view will be seen in the equatorial region.
  • Conjunction starts at 16 of December but the great conjunction will take place on the date of 21 of December 2020.
  • If you miss the great astronomical phenomena be ready and set a reminder for the next time will be on March 15, 2089
  • The great conjunction is also called heliocentric conjunction

Some Knowledge about Jupiter & Saturn


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  1. Jupiter is known as the biggest planet in the solar system. For more knowledge about the solar system go through the Solar System: A General Introduction.
  2. It takes approx. 11.86 years for orbiting the sun (revolution).
  3. Most numbers of natural satellites are found on Jupiter. Jupiter’s, as well as the biggest natural satellite of our solar system Ganymede, is found on Jupiter.
  4. Ganymede, Callisto, Io, and Europa are the main natural satellite of Jupiter.
  5. The planet Jupiter is discovered by Sir Galileo
  6. Jupiter is also known as Master of Gods
  7. Nasa launched a satellite mission named Juno for the study of Jupiter in 2011.


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  1. The second biggest planet of the solar system is made up mostly of hydrogen and helium.
  2. Saturn’s upper atmosphere is covered by ammonia that why it appears blue.
  3. Every 14.7 years after there are phenomena that happened on Saturn in which the rings of Saturn look Missing which is known as ring crossing.
  4. It takes approx. 29 years for orbiting the sun.
  5. Titan is the biggest natural satellite of Saturn.
  6. It’s the last solar system planet which can be seen from the earth by naked eyes.

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