Japanese astronomers discover two giant celestial bodies with giant telescopes by two 28cm telescopes |



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Using two 28-cent telescopes you can buy from the Internet, Japanese astronomers have discovered celestial bodies that are just 1.3 km from the Cooper Range at the edge of the solar system.

The Kuiper belt is located on the outer side of the Neptune orbit of the solar system (about 30 astronomical units of the Sun) and is spread by micro-planets ranging in diameter from a few kilometers to thousands of kilometers called Cobo's celestial bodies (KBO). The asteroids of the inner solar system received more solar radiation and suffered more collisions, the appearance has changed in the last billions of years, but the celestial bodies in the cypress cold belt were thrown to the outer waves in the first days, not interacting with the sun. Therefore, it is the best object for astronomers to study the original solar system.

NASA's new horizons have flown more than the 33-kilometer Ultima Thule asteroid, and high-quality photos that continue to recede show that Ultima Thule looks like a reddish-toned snowman.

Unfortunately, we still know very little about celestial celestial bodies. Even the stellar telescope (also known as the Subaru Telescope), which has an extremely orbital dwarf planet, can not directly observe small celestial bodies that are only a few kilometers wide. The team led by Japanese National Observatory astronomer Ko Arimatsu decided to use the occultation phenomenon to find micro-planets.

Concealment refers to the phenomenon of obscuration that a celestial body passes between another celestial body and an observer. In general, the visual area of ​​the corrective is greater than that of the hidden person. The research team placed two 28cm Celestron telescopes on the roof of a school and spent 60 hours monitoring about 2,000 stars between June 25, 2016 and August 1, 2017. Then, data analysis found that only luminosity of one of the stars decreased during the observation period, which means that an object passed in front of the star, and the estimated width of the object was only 1.3 km.

The discovery may support the micro-planet hypothesis of the Russian Russian astronomer Viktor Safronov, which refers to the formation of tiny dust particles by constant collision and bonding when the diameter of the small celestial body reaches about 1 km. In the great hours, you can lure yourself through gravity and form a protoplan of the lunar scale faster.

But perhaps even worse, the team spent only about NT $ 500,000, which is far less than 0.3% of the international program budget, but found small objects that could not be seen even with large telescopes. Hey, if you're also an amateur astronomer who has little money available, maybe you can help find the old planet with micro-planets?

The team's new work was published in the journal Nature Astronomy.

(Source: National Astronomical Observatory, Japan)

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