Английская Википедия:2005 LW3
Шаблон:Use dmy dates Шаблон:Infobox planet
Шаблон:Mp is a binary near-Earth asteroid classified as a potentially hazardous object of the Apollo group. It was discovered on 5 June 2005 by the Siding Spring Survey at Siding Spring Observatory in Australia.[1] It made a close approach of Шаблон:Convert from Earth on 23 November 2022, reaching a peak brightness of apparent magnitude 13 as it passed over the northern celestial hemisphere sky.[2] It was extensively observed by astronomers worldwide during the close approach, and radar observations by NASA's Goldstone Solar System Radar in California discovered a Шаблон:Cvt-wide natural satellite orbiting the asteroid at a wide separation of Шаблон:Cvt.[3][4]
Physical characteristics
Goldstone Solar System Radar observations in November 2022 resolved the shape of Шаблон:Mp, revealing a body Шаблон:Cvt in diameter—larger than its previously expected diameter of Шаблон:Cvt.[5][4] For an absolute magnitude of 21.9, this radar-measured diameter indicates that Шаблон:Mp has a very low geometric albedo of 0.02.[6] These radar observations also determined a rotation period of 3.6 hours for Шаблон:Mp.[5]
Satellite
The satellite of Шаблон:Mp was discovered by a team of astronomersШаблон:Efn using Goldstone Solar System Radar observations from 23–27 November 2022. The satellite appears elongated, with equatorial dimensions of Шаблон:Cvt.[5] The satellite is widely separated from Шаблон:Mp (the primary body of the system) at a semi-major axis of about Шаблон:Cvt,[5] which is around 17% of the primary's Hill radius (Шаблон:Cvt for an assumed primary density of Шаблон:Val).[6] The satellite's discovery was announced in a Central Bureau Electronic Telegram on 10 December 2022.[5]
Notes
References
External links
- 2005 LW3: Timing Assessment, International Asteroid Warning Network, last updated 29 November 2022
- Asteroid 2005 LW3 Campaign: Timing is Everything!, Leonard David, 5 November 2022
- Шаблон:NeoDys
- Шаблон:ESA-SSA
- Шаблон:JPL small body
Шаблон:2022 in space Шаблон:Small Solar System bodies Шаблон:Portal bar Шаблон:Authority control
- ↑ Ошибка цитирования Неверный тег
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