This article was published in January 2021.
Preface: If nine different balls are running on a circular orbit. They always have chance to meet up.
Synopsis: The order of magnitude of the nine planets is Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars, Mercury, and Pluto. The moon orbits the Earth once every 27.322 days. It also takes approximately 27 days for the moon to rotate once on its axis. The moon’s rate of rotation nearly matches its orbital period, which keep the same side facing Earth. As a result, the moon does not seem to be spinning but appears to observers from Earth to be keeping almost perfectly still. This is synchronous rotation.
The above shows the moon actual state. Moon running is a synchronous rotation (only one face is visible from the Earth). The moon’s rate of rotation nearly matches its orbital period, which keep the same side facing Earth. Therefore we are not feeling that moon is rotating.
The moon is the Earth’s only satellite,the moon rotation and revolution synchronization affect the Earth’s tides,the moon is located at Lagrange point.So it can be parked and fixed in a certain location.
Reference: Lagrange point – a planet’s small mass can operate in a constant mode, and the gravity of two large masses is exactly equal to the centripetal force required for a small object to move with it.So it can be parked and fixed in a certain location.
A great conjunction
Great conjunctions occur approximately every 20 years when Jupiter “overtakes” Saturn in its orbit. According to NASA, the Jupiter-Saturn phenomenon in 2020 will occur at night for the first time nearly 800 years apart, and it is the closest double star in the past 400 years.
Including the blue moon,13 full moons appear in 2020. In addition, at least three full moons are considered supermoons (it appear larger and brighter than usual). Perhaps of above issues, let people feeling that 2020 is a special year.
Let’s take a review astronomical phenomenon of 2020 (see below):
What will be the astronomical phenomenon in 2021?
What is triple conjunction? A triple conjunction is an astronomical event where two planets or a planet and a star meet each other three times in a short period, either in opposition or at the time of inferior conjunction, if an inferior planet is involved.
On 8th Jan, 2021, rare three-planet conjunction of Mercury, Jupiter and Saturn to illuminate the sky. What’s the next?
Refer to link – https://solarsystem.nasa.gov/whats-up-skywatching-tips-from-nasa/ or table below.
Since ancient age, the witch and foretellers will exploit astronomical phenomenon to do prediction. It is hard to say it is correct or not correct. My idea is that the genesis of earth looks mystery. For instance, the location of moon looks special. It looks that it is artificial.
Some said, the Black Death is created on March 20, 1345, coincidentally a triple conjunction of Saturn, Jupiter and Mars occurs. Ref: https://www.history.com/this-day-in-history/black-death-is-created-allegedly
Does it true or it is a neuroticism. All depends on the decision making by yourself.
End of article.