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Tsuchinshan–ATLAS

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The comet on October 2, 2024. Picture taken from (or in) Australia.

C/2023 A3 (Tsuchinshan–ATLAS) is a comet from the Oort cloud. It was discovered in 2023, by the Purple Mountain Observatory in China; A few weeks later, the comet was found (independently) by ATLAS South Africa; The comet passed perihelion at a distance of 0.39 AU (58 million km; 36 million mi) on 27 September 2024,[6][3] when it became visible to the naked eye.[7][8]

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  • C/2023 A3 (Tsuchinshan-ATLAS) on September 28, 2024 from Gran Canaria, Spain.[9]
    C/2023 A3 (Tsuchinshan-ATLAS) on September 28, 2024 from Gran Canaria, Spain.[9]
  • C/2023 A3 (Tsuchinshan-ATLAS) on September 25, 2024 from Chile.
    C/2023 A3 (Tsuchinshan-ATLAS) on September 25, 2024 from Chile.

References

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  1. ↑ "Small-Body Database: C/2023 A3 (Tsuchinshan–ATLAS)". ssd.jpl.nasa.gov. Archived from the original on 2023-03-01. Retrieved 1 September 2023.
  2. ↑ Seiichi Yoshida. "C/2023 A3 ( Tsuchinshan-ATLAS )". Seiichi Yoshida's Comet Catalog. Retrieved 2023-05-01.
  3. ↑ 3.0 3.1 "Horizons Batch for C/2023 A3 (Tsuchinshan–ATLAS) on 2024-Sep-27" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Archived from the original on 2023-04-04. Retrieved 2023-09-01. Perihelion as defined at epoch 2024-Sep-01 is QR= 3.91402E-01 (0.3914 AU).
  4. ↑ Horizons output. "Barycentric Osculating Orbital Elements for Comet C/2023 A3 (Tsuchinshan–ATLAS)". Retrieved 2023-09-01. (Solution using the Solar System's barycenter (Sun+Jupiter). Select Ephemeris Type:Elements and Center:@0)
    Epoch 1800 was PR= 3.6E+9 / 365.25 days = millions of years
  5. ↑ "Horizons Batch for C/2023 A3 (Tsuchinshan–ATLAS) Solar elongation on 2024-Oct-10". JPL Horizons. Retrieved 2023-03-03.
  6. ↑ "MPEC 2023-D77 : COMET C/2023 A3 (Tsuchinshan–ATLAS)". minorplanetcenter.net. Retrieved 1 March 2023.
  7. ↑ "New comet – C/2023 A3 – could be bright in 2024". earthsky.org. 3 March 2023. Retrieved 8 April 2023.
  8. ↑ King, Bob (16 March 2023). "Anticipating Comet Tsuchinshan-ATLAS (C/2023 A3)". Sky and Telescope. Retrieved 8 April 2023.
  9. ↑ Ruiz, Victor R. (2024-09-29), Comet C/2023 A3 (Tsuchinshan-ATLAS), retrieved 2024-10-11


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