Vote to help name the largest unnamed body in the solar system | Human world

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A round and growing world and its moon, with a distant sun.

The artistic concept of 2007 OR10, the largest unnamed solar system object discovered so far, and its moon. Both are in the Kuiper Belt, away from the sun in our solar system. Image via Alex H. Parker / The Planetary Society.

Astronomers Meg Schwamb, Mike Brown and David Rabinowitz organized a vote on an official name for the largest unnamed body in our solar system. They helped discover this object of the Kuiper Belt more than 10 years ago. Tagged (225088) 2007 OR10, the object has one of the reddest surfaces found in the Kuiper Belt. Although several names have been proposed, 2007 OR10 does not yet have an official name. The current campaign of astronomers, announced in an article in The Planetary Society on April 9, 2019, invites you to vote on three possible names. The winner will be sent to the International Astronomical Union for official recognition. Vote here The deadline to cast a vote is 11:59 p.m. PDT on May 10 (6:59 UTC on May 11, translate UTC on time).

Meg Schwamb wrote:

It is time to give a name to OR10 2007. We are requesting your help to choose an appropriate name for 2007 OR10 to send to the International Astronomical Union (IAU). The IAU formally gives permanent names to the minor planets of the solar system, but the discoverers have a period of about 10 years after the body has a well-determined orbit to suggest a name that the IAU considers. We have three suggestions for names that conform to the IAU name regulations and are badociated with mythological creatures and figures that reflect aspects of the physical properties of 2007 OR10. The option with the most votes will be the one that we will formally submit to the IAU for consideration. Go to and vote for your favorite appointment suggestion. The voting ends on May 10. [May 11 UTC].

Name suggestions have been pre-selected to meet the requirements of the International Astronomical Union (IAU).

Gonggong is a Chinese water god with red hair and a snake-shaped tail. It is known for creating chaos, causing floods and tilting the Earth.

A European winter goddess of fertility, rebirth and women. Holle makes snow shaking her bed. She is a patron of domestic crafts, especially spinning. It is linked to the Yuletide season (winter solstice) badociated with mistletoe and holly, an evergreen plant with red fruits.

Part of the Æsir, Vili is a Nordic deity. Vili, along with his brothers Odin and Ve, defeated the frost giant Ymir and used Ymir's body to create the universe. Ymir's flesh and bones were forged on Earth, and Ymir's blood became rivers and oceans.

As mentioned above, 2007 OR10 is reddish in color. What else do we know about him? Schwamb, Brown and Rabinowitz were part of the team that discovered him on July 17, 2007, as part of Palomar's Distant Solar System Survey, which searched for distant bodies in the Kuiper Belt and beyond. With an orbit placing it in the Kuiper belt, we know that this object orbits beyond Neptune. Schwamb wrote:

Near-infrared spectroscopy has revealed that there are large amounts of pure water ice and possibly traces of methane ice on the surface of the 2007 OR10 … It is estimated to be 1,250 kilometers [777 miles] in diameter, which makes it smaller than Pluto and Eris, similar in size to Pluto's moon Charon. The 2007 OR10 is probably big enough for gravity to make it round, which makes it a likely dwarf planet.

2007 OR10 was originally nicknamed Snow White by Mike Brown, one of its discoverers. Around the time the team discovered it, they badumed that its color was white, reasoning that it would have to be very large or too bright to be detected by its survey. However, when 2007 OR10 turned out to be one of the reddest objects in the Kuiper belt, the nickname was removed.

There have also been requests to badign a name to this object, including one for the name Gebeleizis. But, until now, no name has been stuck.

Conclusion: the deadline to cast a vote is 11:59 p.m. PDT on May 10, 2019 (6:59 UTC on May 11, translate UTC on time). To vote, go to Help name 2007 OR10 website.

Through the planetary society

Deborah Byrd

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