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Jeddah astronomer: The beginning of the retrograde movement of Jupiter 2021 next Sunday

Jeddah astronomer: The beginning of the retrograde movement of Jupiter 2021 next Sunday

The head of the Astronomical Society in Jeddah, Eng. Majed Abu Zahra, explained: “Jupiter will reach on Sunday, June 20, 2021, its apparent “steadiness point” in front of the stars of Aquarius, which indicates the beginning of its retrograde movement back in the dome of the sky in front of the stars, which will continue until mid-October.

He said: The planets usually move towards the east in front of the stars, but as the Earth prepares to move between an “outer planet” such as Jupiter and the sun (the opposite), these outer planets spend part of the time each year moving towards the west in relation to the stars, and of course this is just an optical illusion and not a movement. Real, indicating that the planets always move in the same direction and do not move backwards, but what happens is that the Earth, during its rapid movement in its small orbit around the sun, passes next to one of those exoplanets, then it appears to us from Earth “only” that the planet began to move backward in Its orbit relative to the stars for several months.

And he indicated that Jupiter is currently being monitored in the sky during hours from midnight towards the eastern horizon, where it appears to the naked eye as a bright, white light point, while the planet’s disk and its four large moons can be seen through a binocular binoculars mounted on a stand to prevent image shaking, and it is preferable to use a telescope Small to see the details of the planet.

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It is mentioned that our planet will be between Jupiter and the sun on August 19, 2021, when Jupiter will be in a state called “the encounter” and it will rise with sunset and will remain visible throughout the night and set with the sunrise of the next day, so the period of encounter is ideal during the year to see the planet.