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HandWiki. 2020 AV2. Encyclopedia. Available online: https://encyclopedia.pub/entry/36570 (accessed on 23 September 2026).
HandWiki. 2020 AV2. Encyclopedia. Available at: https://encyclopedia.pub/entry/36570. Accessed September 23, 2026.
HandWiki. "2020 AV2" Encyclopedia, https://encyclopedia.pub/entry/36570 (accessed September 23, 2026).
HandWiki. (2022, November 25). 2020 AV2. In Encyclopedia. https://encyclopedia.pub/entry/36570
HandWiki. "2020 AV2." Encyclopedia. Web. 25 November, 2022.
2020 AV2
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2020 AV2 is a near-Earth asteroid discovered by the Zwicky Transient Facility on 4 January 2020. It is the first asteroid discovered to have an orbit completely within Venus's orbit, and is thus the first and only known member of the inner-Venusian Vatira population of Atira-class asteroids. 2020 AV2 has the smallest known aphelion and third-smallest known semi-major axis among all asteroids. With an absolute magnitude around 16.4, the asteroid is expected to be larger than 1 km in diameter.

asteroid aphelion near-earth

References

  1. Bolin, B. (8 January 2020). "MPEC 2020-A99 : 2020 AV2". Minor Planet Electronic Circular. Minor Planet Center. https://www.minorplanetcenter.net/mpec/K20/K20A99.html. 
  2. Ye, QuanzhiExpression error: Unrecognized word "etal". (December 2019). "A Twilight Search for Atiras, Vatiras and Co-orbital Asteroids: Preliminary Results". The Astronomical Journal 159 (2): 70. doi:10.3847/1538-3881/ab629c.  https://dx.doi.org/10.3847%2F1538-3881%2Fab629c
  3. Plait, Phil (10 January 2020). "Meet 2020 AV2, the first asteroid found that stays inside Venus's orbit!". Bad Astronomy (Syfy Wire). https://www.syfy.com/syfywire/meet-2020-av2-the-first-asteroid-found-that-stays-inside-venuss-orbit. 
  4. Clavin, Whitney (15 January 2020). "First Asteroid Found Inside Orbit of Venus". California Institute of Technology. https://www.caltech.edu/about/news/first-asteroid-found-inside-orbit-venus. 
  5. The celestial coordinates of 2020 AV2 at the time of discovery are  21h 24m 49.90s and −06° 08′ 41.8″.[1] See Aquarius for constellation coordinates.
  6. Masi, Gianluca (9 January 2020). "2020 AV2, the first intervenusian asteroid ever discovered: an image – 08 Jan. 2020". Virtual Telescope Project. https://www.virtualtelescope.eu/2020/01/09/2020-av2-the-first-intervenusian-asteroid-ever-discovered-an-mage-08-jan-2020/. 
  7. "MPEC 2020-W156 : 2020 AV2". Minor Planet Electronic Circular. Minor Planet Center. 25 November 2020. https://minorplanetcenter.net/mpec/K20/K20WF6.html. 
  8. "How Are Minor Planets Named?". Minor Planet Center. International Astronomical Union. https://minorplanetcenter.net/iau/info/HowNamed.html. 
  9. Greenstreet, Sarah; Ngo, Henry; Gladman, Brett (January 2012). "The orbital distribution of Near-Earth Objects inside Earth's orbit". Icarus 217 (1): 355–366. doi:10.1016/j.icarus.2011.11.010. Bibcode: 2012Icar..217..355G. https://static1.squarespace.com/static/5743c691d51cd42eed1e15ea/t/57451dc89f72665be88257b5/1464147402569/Greenstreetetal2012_NEOSSat1model.pdf. Retrieved 11 January 2020. "We have provisionally named objects with 0.307 < Q < 0.718 AU Vatiras, because they are Atiras which are decoupled from Venus. Provisional because it will be abandoned once the first discovered member of this class will be named.". 
  10. "JPL Small-Body Database Browser: 2020 AV2". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3985571. 
  11. "2020 AV2". Minor Planet Center. International Astronomical Union. http://www.minorplanetcenter.net/db_search/show_object?object_id=2020+AV2. 
  12. Greenstreet, Sarah (1 March 2020). "Orbital Dynamics of 2020 AV2: the First Vatira Asteroid". Monthly Notices of the Royal Astronomical Society: Letters 493 (1): L129–L131. doi:10.1093/mnrasl/slaa025. Bibcode: 2020MNRAS.493L.129G. https://academic.oup.com/mnrasl/article-abstract/493/1/L129/5731877. 
  13. "JPL Small-Body Database Search Engine". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb_query.cgi?obj_group=all;obj_kind=all;obj_numbered=all;OBJ_field=0;ORB_field=0;c1_group=ORB;c1_item=Bn;c1_op=%3C;c1_value=0.983;table_format=HTML;max_rows=100;format_option=comp;c_fields=AcBiBhBnBgBjBrCkAiAp;.cgifields=format_option;.cgifields=ast_orbit_class;.cgifields=table_format;.cgifields=obj_kind;.cgifields=obj_group;.cgifields=obj_numbered;.cgifields=com_orbit_class&query=1&c_sort=BhA. 
  14. de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (1 May 2020). "On the orbital evolution of 2020 AV2, the first asteroid ever observed to go around the Sun inside the orbit of Venus". Monthly Notices of the Royal Astronomical Society: Letters 494 (1): L6–L10. doi:10.1093/mnrasl/slaa027. Bibcode: 2020MNRAS.494L...6D. https://academic.oup.com/mnrasl/article-abstract/494/1/L6/5740740. Retrieved 3 March 2020. 
  15. de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (25 July 2019). "Hot and Eccentric: The Discovery of 2019 LF6 as a New Step in the Quest for the Vatira Population". Research Notes of the American Astronomical Society 3 (7): 106. doi:10.3847/2515-5172/ab346c. Bibcode: 2019RNAAS...3g.106D. https://iopscience.iop.org/article/10.3847/2515-5172/ab346c. Retrieved 4 June 2020. 
  16. de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (1 August 2019). "Understanding the evolution of Atira-class asteroid 2019 AQ3, a major step towards the future discovery of the Vatira population". Monthly Notices of the Royal Astronomical Society 487 (2): 2742–2752. doi:10.1093/mnras/stz1437. Bibcode: 2019MNRAS.487.2742D. https://academic.oup.com/mnras/article-abstract/487/2/2742/549830. 
  17. Bruton, D.. "Conversion of Absolute Magnitude to Diameter for Minor Planets". Department of Physics, Engineering, and Astronomy. Stephen F. Austin State University. http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html. 
  18. Ip, W.-H.; Bolin, B. T.; Masci, F. J.; Ye, Q.; Kramer, E. A.; Helou, G.; et al. (September 2020). "A kilometer-scale asteroid inside Venus's orbit". arXiv:2009.04125 [astro-ph.EP]. //arxiv.org/archive/astro-ph.EP
  19. Popescu, M.; de León, J.; de la Fuente Marcos, C.; Vaduvescu, O.; de la Fuente Marcos, R.; Licandro, J.; Pinter, V.; Zamora, O. et al. (11 August 2020). "Physical characterization of 2020 AV2, the first known asteroid orbiting inside Venus orbit". Monthly Notices of the Royal Astronomical Society 496 (3): 3572–3581. doi:10.1093/mnras/staa1728. Bibcode: 2020MNRAS.496.3572P. https://academic.oup.com/mnras/article-abstract/496/3/3572/5859506. Retrieved 8 July 2020. 
  20. Redd, Nola (1 July 2020). "First asteroid found within Venus's orbit could be a clue to missing 'mantle' asteroids". Science Magazine (American Association for the Advancement of Science). doi:10.1126/science.abd6026. https://www.sciencemag.org/news/2020/07/first-asteroid-found-within-venus-s-orbit-could-be-clue-missing-mantle-asteroids. Retrieved 9 September 2020. 
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