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164207 Cardea
Sub-kilometer asteroid and quasi-satellite of Earth From Wikipedia, the free encyclopedia
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164207 Cardea (provisional designation 2004 GU9) is a sub-kilometer asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. It is a quasi-satellite of Earth until around 2600.[4]
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On 14 April 2004 (with less than a 1-day observation arc), the Sentry Risk Table showed 180 virtual impactors.[5] It was removed from the Sentry Risk Table 2 days later on 16 April 2004.[6] Cardea now has a well determined orbit with an observation arc of 12 years.
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Discovery and naming
This asteroid was discovered on 13 April 2004 by the Lincoln Near-Earth Asteroid Research project near Socorro, New Mexico and given the provisional designation 2004 GU9.[1] Following the naming of 524522 Zoozve, a quasi-satellite of Venus, Radiolab and the International Astronomical Union held a public naming campaign for this quasi-satellite from June to September 2024.[7][8] Seven finalist names were revealed in December 2024, with the names being Bakunawa, Cardea, Ehaema, Enkidu, Ótr, Tarriaksuk, and Tecciztecatl.[9] The winning name was Cardea, the Roman goddess of the hinge. The name was announced by the International Astronomical Union on 13 January 2025.[10]
Animation of (164207) 2004 GU9's orbit from 1600 to 2500
Relative to Sun and Earth
Around Earth
Around Sun
Sun · Earth · 2004 GU9
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See also
References
External links
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