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When was the dwarf planet Gonggong discovered?

Question #152127. Asked by serpa.
Last updated Aug 10 2025.
Originally posted Jun 12 2025 11:38 AM.

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1nn1 star
Answer has 4 votes
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1nn1 star
14 year member
201 replies avatar

Answer has 4 votes.

Currently voted the best answer.
Gonggong is a dwarf plant beyond Neptune. It has a diameter of approximately 1200km an an eccentric orbit ranging from 34 to 101 Astronomical Units. It was discovered in 2007 and announced in 2009.
link https://en.m.wikipedia.org/wiki/Gonggong_(dwarf_planet)

Jun 12 2025, 12:49 PM
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Kalibre star
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Kalibre star
126 replies avatar

Answer has 0 votes.
Gonggong, was discovered on 17 July 2007 by American astronomers Megan Schwamb, Michael Brown, and David Rabinowitz at the Palomar Observatory.

link https://en.m.wikipedia.org/wiki/Gonggong_(dwarf_planet)

Aug 10 2025, 6:53 PM
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