China’s first exoplanet found to be named “Wang Shu”

Recently, the first exoplanet discovered by our astronomers has acquired a beautiful name, “Wang Shu”. Its original number name consists of the number and letter, HD173416b, and its new name now means “Goddess of the Moon” in Chinese mythology and will be used in parallel with the original number.

On December 21st, the NameExo Worlds (New) event, China (Mainland), will be held at the Beijing Planetarium. Reporters learned that the planet’s parent star HD173416 also has a new name – “Yuhe”, in Chinese mythology is the meaning of “sun goddess.”

The significance of “Yuhe” and “Wang Shu” in Chinese mythology. Respondent’s Map

Suspicion 1

What are the names of exoplanet systems?

Numbers and letters make up the number name

The discovery and study of exoplanets is the forefront and hottest field of modern astronomy research. Over the past 20 years, astronomers have discovered more than 4,000 exoplanet systems orbiting other stars, some of which are similar to Earth and may be suitable for the survival of extraterrestrial life and even the reproduction of civilizations.

All types of celestial bodies require an internationally uniform name or number for identification and research. When a new exoplanet is discovered, astronomers give it a numbered number, which is usually added b, c, d, e, after its parent star number. to indicate. As the first exoplanet ever discovered orbiting the main sequence star, the scientific name is Pegasus 51b (its parent star is called Pegasus 51) Some of these exoplanets whose parent stars are named after the telescope equipment that found them: the famous exoplanet Kepler-452b, for example, was named after the Kepler satellite that discovered it.

Doubt 2

What is the opportunity of this “name”?

IAU 100 years of organization named

The astronomy community and the public have long wanted to give the exoplanets and their parent stars more “human” proprietary names.

Based on this, the International Astronomical Union (IAU), the authoritative astro-naming body, this year organized the NameExoWorld songlobal campaign to give every country or region worlda dying the opportunity to name an extrasolar planetary system. 2019 marks the 100th anniversary of the IAU and is the second time in history that stars and exoplanets have been named.

This time, hundreds of thousands of people from 112 countries and regions participated in the nomination and voting of a total of 112 exoplanets and their parent stars, receiving a total of 360,000 naming proposals. On December 17th, iAU held a press conference on the naming results in Paris, France.

Suspicion 3

What are the exoplanets named for China (inland)?

The first exoplanet found in our country

The exoplanet system assigned to China (inland) is the parent star HD173416 and the orbiting wood-like exoplanet HD173416b. The system is located in Lyra, about 440 light-years away, and the parent star HD173416 is 6 light and has a mass about twice that of the sun, but unlike the sun it is a red giant that is out of the main sequence.

The extrasolar planet HD173416b, which orbits the giant star, was discovered by Liu Yuxuan and Zhao Gang, researchers at the National Observatory of the Chinese Academy of Sciences, and has been named China’s top 10 astronomical advances in 2008.

Zhao Fei, an assistant researcher at the National Observatory, said the planet was discovered using the 2.16-meter telescope at the National Observatory’s Xinglong Station, the 1.8-meter telescope at the Okama Observatory in Japan and the South Korean telescope.

It is reported that this is the first exoplanet found by Chinese astronomers, its mass is 2.7 times the mass of Jupiter, the rotation period of 324 days.

Doubt 4

Who started the name “Yuhe, Wang Shu”?

Proposal put forward by Guangzhou Six Chinese Astronomical Society

How do the public name planets? NEW-China (Mainland) National Committee recommends that the names be made after traditional myths and legends with Chinese characteristics and cultural colors, famous mountains and rivers, famous historical figures and allusions, literary and artists of outstanding scientists, etc.

The activities of “named” for exoplanets have been actively attended by astronomy enthusiasts. According to Zhu Jin, Chairman of the National Committee of NEW-China (Mainland) and Honorary Director of the Beijing Planetarium, in less than four months, the event collected a total of 67 valid naming proposals from primary and secondary schools, astronomy enthusiasts’ groups, professional astronomers and senior astronomy enthusiasts from all over the country.

After primaries, expert finals and public online voting, one winning nomination and two alternative nominations were selected in early November. Approved by the IAU, the “Xihe, Wangshu” proposed by the Guangzhou Sixth Middle School Astronomical Society has been confirmed as the official name of the stars and planets of this planetary system.

Xu Wei, a student at guangzhou’s Sixth Middle School Astronomy Society, said that “Yuhe” is the goddess of the sun in Chinese mythology and is also considered to be the earliest astronomer and calendar-maker in ancient China. “Wang Shu” in Chinese mythology is the goddess of driving the moon, is regarded as the moon god. “These two names have a wonderful meaning and a symbol of the spirit of exploration. He said.

Doubt 5

What are the new names in other countries and regions?

Some are named after gems and rivers.

What other countries and regions name exoplanets and their parent stars? Cao Chen, an associate professor at the School of Space Science and Physics at Shandong University’s Weihai Campus, said Malaysia uses Malay-language gems to name the exoplanet HD20868b (Baiduri Baiduri) and its parent star, HD20868 (Itan Intan). The new name for the exoplanet HD 30856b (Nakamb?) and its parent star, HD30856 (Mouhoun), refers to the name of Burkina Faso’s famous local river.

Hong Kong, China, is named after two landmark mountains, Lion Mountain and Taiping Peak.

Echoing the United Nations International Year of Indigenous Languages 2019, indigenous speakers are encouraged to name from those languages, with dozens of selected names being indigenous source names. In Argentina, the winning nomination was made by a teacher and the leader of the indigenous Moqoit community. The new names of the exoplanet HD48265b (Naqaya) and its parent star, HD48265 (Nosaxa), mean “brother-family-relative” (meaning all humans are “brothers” and spring (literally, New Year’s Day) in Mojubei.

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