How Did Dwarf Planet Gonggong Get Its Name

Dwarf planet Gonggong got its name through a public vote held by its discovery team, followed by formal approval from the International Astronomical Union (IAU). The winning name, Gonggong, refers to an ancient Chinese water deity associated with floods, disorder, and a dramatic change to the structure of the heavens. That connection fits a distant, reddish world moving through the dark outer Solar System rather neatly.

Before receiving its official name, the object was known by the provisional designation 2007 OR10. It is a trans-Neptunian dwarf planet, located beyond Neptune in the scattered disc. Its diameter is roughly 1,230 km, making it smaller than Pluto but considerably larger than many known Kuiper Belt objects. This makes it the fifth-largest known trans-Neptunian object, after Pluto, Eris, Haumea, and Makemake.

How Gonggong Got Its Name?

Official Name Selection

Astronomers discovered Gonggong in 2007 using observations from the Palomar Observatory in California. The discovery team initially gave the unnamed dwarf planet the informal nickname Snow White, partly because its surface was first thought to be unusually bright. Later observations showed that assumption was wrong. Gonggong has a dark surface with a strong reddish appearance, and “Snow White” began to look like a poor fit.

The object’s provisional designation, 2007 OR10, followed the naming system managed by the Minor Planet Center. That designation identified when the object was observed and cataloged, but it was never intended to serve as a memorable public name.

Public Naming Vote

The discovery team eventually invited the public to choose among several proposed names. The candidates included Gonggong, Holle, and Vili, each drawn from mythological traditions and chosen in keeping with naming practices for distant planetary bodies.

Gonggong won the vote. The result mattered because the name did more than sound distinctive. It linked the dwarf planet to Chinese mythology, giving Chinese astronomy and culture a visible place in the naming of Solar System objects. This was especially meaningful to Chinese astronomers and observers, who had already contributed to planetary science through missions such as Tianwen and the study of the red planet by the Zhurong rover.

The public vote also helped replace the awkward nickname “Snow White” with a name grounded in a coherent mythic tradition.

IAU Approval

A public vote alone does not make a name official. The International Astronomical Union, through its Working Group for Planetary System Nomenclature, reviewed and approved Gonggong in 2020.

That approval converted the informal identity into the official name used in scientific catalogs, planetary databases, and research papers. Its formal designation is (225088) Gonggong. The number connects the object to the minor-planet catalog, while Gonggong serves as its recognized proper name.

What Does Gonggong Mean?

Chinese Name

Gonggong comes from the Mandarin Chinese name 共工, written in pinyin as Gònggōng. The two repeated syllables are pronounced with different tones in Mandarin, although English speakers often pronounce the name more simply as “gong-gong.”

The name refers to a figure in ancient Chinese mythology, sometimes described as a Chinese water god or a powerful aquatic deity. It is not a generic word for water, and it does not mean “red planet.” Its meaning comes from the identity and stories associated with the deity.

Water Deity

Gonggong is commonly connected with water, rivers, floods, and the destructive force of nature. In some traditions, he appears as a major deity or ruler linked to the northwestern direction and the cosmic order.

That association made the name suitable for a distant dwarf planet whose surface may contain water ice and methane ice, although its extreme distance makes detailed observations difficult. The connection is symbolic rather than literal, of course. No mythological force is reshaping its orbit.

Mythic Meaning

The mythological Gonggong represents uncontrolled power, conflict, and cosmic catastrophe. Those themes carry more weight than a simple reference to water. The story presents nature as immense and unstable, capable of damaging the structure of the universe itself.

Who Is Gonggong in Chinese Mythology?

Gonggong’s Identity

In Chinese mythology, Gonggong is often portrayed as a rebellious or destructive figure who challenges authority. Some accounts describe him as the son of the water deity Zhu Rong, while other traditions place him among ancient rulers or supernatural beings. Chinese mythology developed across many texts and eras, so the details are not perfectly uniform.

The figure appears in early Chinese literature, including traditions associated with texts such as the Huainanzi and Heavenly Questions. That layered history matters. There is no single mythology book that fixes every detail of Gonggong’s identity.

The Cosmic Flood

Gonggong’s most famous conflict involved a battle with Zhuanxu, a legendary ruler. After suffering defeat, Gonggong became enraged and struck Mount Buzhou, one of the pillars supporting the heavens.

The impact damaged the cosmic order. The sky tilted, the Earth shifted, and waters poured across the land. Floods spread through the world, turning Gonggong’s anger into a universal disaster rather than a private quarrel.

Mount Buzhou

The damaged mountain is often called Mount Buzhou, or Buzhou Mountain. In the myth, its collapse helps explain why the sky is tilted and why rivers flow in particular directions.

The goddess Nüwa later repairs the heavens, using stones and other materials to restore balance. Another version describes the giant turtle Ao helping support the sky. These stories connect Gonggong with a larger set of Chinese creation myths involving floods, celestial disorder, and the repair of the universe.

Why Does the Name Suit the Dwarf Planet?

Water Association

Gonggong is a cold outer Solar System object, where water exists primarily as ice. Its surface may also contain methane and other frozen compounds, making the water symbolism scientifically appropriate without pretending that the dwarf planet is ocean-covered. The name was jointly approved with its satellite Xiangliu on 5 February 2020.

Red Appearance

Gonggong’s reddish color may result from complex organic compounds, often called tholins, created when radiation alters methane and other ices. The rusty hue gives the world a harsher visual character than the old “Snow White” nickname suggested.

Distant World

Gonggong follows an elongated, elliptical orbit far beyond Neptune. It can travel more than 60 astronomical units from the Sun, where sunlight is feeble and temperatures are profoundly cold. A mythic figure associated with remote cosmic disruption feels more fitting for this strange world than a cheerful fairy-tale nickname.

What Was Its Former Nickname?

Before its official naming, Gonggong was informally called Snow White. The nickname came from an early estimate that the dwarf planet had a bright surface. Later observations measured a much lower surface albedo, revealing a darker and redder object.

Snow White was never its official astronomical name.

What Is Gonggong’s Official Designation?

Its official catalog designation is (225088) Gonggong. The object was previously identified as 2007 OR10, its provisional designation after discovery.

Gonggong is classified as a dwarf planet and a trans-Neptunian object. It is not an asteroid in the usual sense of an inner-Solar-System body.

FAQ

Who named the dwarf planet Gonggong?

The discovery team proposed several names, and the public selected Gonggong in an online vote. The IAU later approved it.

What does Gonggong mean in Chinese?

Gonggong, or 共工, is the name of an ancient Chinese water deity associated with floods and cosmic disorder.

Why was it once called Snow White?

Astronomers initially believed its surface might be bright. Later observations showed a dark, reddish surface, making the nickname misleading.

Does Gonggong have a moon?

Yes. Its satellite is named Xiangliu, after a poisonous serpent-like figure associated with Gonggong in Chinese mythology.

Conclusion

The name Gonggong was selected because it joined scientific discovery with cultural meaning. A public vote replaced the temporary nickname Snow White, and the IAU gave the choice official status. The result is unusually well matched: a remote, red, ice-rich dwarf planet now carries the name of a Chinese water god whose rage once tilted the heavens.