2023_FW13

<span class="nowrap">2023 FW<sub>13</sub></span>

2023 FW13

Near-Earth asteroid

2023 FW13 is an asteroid that was spotted on March 28, 2023, from the Pan-STARRS telescope at Hawaii, United States. It circles the sun in sync with Earth in such a way that it appears to orbit Earth, but well outside Earth's Hill sphere, making it a quasi-satellite.[3]

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Orbit

The orbit of 2023 FW13 has a one-to-one resonance with Earth and is very eccentric, reaching out halfway to Mars and halfway to Venus.[4] It's estimated that it has circled Earth since 100 B.C. and will continue until 3700 A.D. If those estimates are correct, it would significantly overtake 469219 Kamoʻoalewa as the most stable quasi-satellite of Earth.[4]

References

  1. [1]
    "2023 FW13". Minor Planet Center. Archived from the original on 10 April 2023. Retrieved 21 May 2023.
  2. [2]
    "JPL Small-Body Database Browser: (2023 FW13)" (2023-04-01 last obs.). Jet Propulsion Laboratory. Archived from the original on 18 November 2022. Retrieved 21 May 2023.
  3. [3]
    Kuthunur, Sharmila (12 April 2023). "Newfound asteroid is a long-term 'quasi-moon' of Earth". Space.com. Archived from the original on 20 May 2023. Retrieved 20 May 2023.
  4. [4]
    Chandler, David. "DOES EARTH HAVE A NEW QUASI-MOON?". Archived from the original on 14 May 2023. Retrieved 20 May 2023.


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