HD 131399Ab (lower left) can see three suns simultaneously during half of its orbital period.
According to foreign media reports, it is surprising that Tatooine, the hometown of Luke Skywalker, the protagonist of the movie “Star Wars”, has two suns. But in the real universe, one planet even has three suns. ——Oxford Cloth
An international team of astronomers recently announced that the planet HD 131399Ab, which is about 340 light-years away from the Earth, Running around a Samsung system. During part of its revolution, it sometimes experiences sunrises and sunsets three times a day, and even the entire planet is in a permanent daylight state. The findings were published in the journal Science.
According to reports, HD 131399Ab is located in the Centauri galaxy, has a mass four times that of Jupiter, and was formed 16 million years ago. It is a human One of the youngest exoplanets discovered. Its orbit around the largest star in the galaxy takes 550 Earth years. Half of that time, three suns can be seen from the planet at the same time. The two weaker suns are closer to each other and separated from the third sun. ——600D Oxford cloth
But as the planet moves to a certain orbit, there will be two small suns setting, and the big sun will follow. The rising phenomenon means that there will be permanent daylight on the planet. This period of time accounts for one quarter of the orbital period, which is about 100 to 140 Earth years.
Scientists used the Very Large Telescope of the European Southern Observatory in Chile to observe HD 131399Ab. It is one of the few that can be observed directly instead of relying on stellar light to regularly observe it. Variation of inferred exoplanets. Scientists believe that as humans continue to observe the universe, more surprises will appear.
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