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2005 LW3
Asteroid / From Wikipedia, the free encyclopedia
2005 LW3 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.[2] It made a close approach of 2.97 lunar distances (1.14×10^6 km; 0.71×10^6 mi) from Earth on 23 November 2022, reaching a peak brightness of apparent magnitude 13 as it passed over the northern celestial hemisphere sky.[1] 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 100 m (330 ft)-wide natural satellite orbiting the asteroid at a wide separation of 4 km (2.5 mi).[6][7]
Quick Facts Discovery, Discovered by ...
![]() Radar image of 2005 LW3 and its satellite (below) by the Goldstone Solar System Radar on 23 November 2022 | |
Discovery[1][2] | |
---|---|
Discovered by | Siding Spring Survey |
Discovery site | Siding Spring Obs. |
Discovery date | 5 June 2005 |
Designations | |
2005 LW3 | |
NEO · Apollo · PHA | |
Orbital characteristics[3] | |
Epoch 25 February 2023 (JD 2460000.5) | |
Uncertainty parameter 0 | |
Observation arc | 17.49 yr (6,389 days)[1] |
Aphelion | 2.106 AU |
Perihelion | 0.771 AU |
1.439 AU | |
Eccentricity | 0.4638 |
1.73 yr (630.3 days) | |
81.385° | |
0° 34m 16.171s / day | |
Inclination | 6.021° |
59.587° | |
5 October 2022 | |
288.663° | |
Earth MOID | 0.001397 AU (209,000 km; 0.544 LD) |
Jupiter MOID | 3.335 AU |
Physical characteristics | |
400 m (primary)[4] | |
3.6 h[4] | |
0.02[5] | |
21.89[3] · 21.68[1] | |
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