|Discovery and designation|
|Discovered by||Lincoln Laboratory ETS (LINEAR)|
|Discovery date||April 24, 2008|
|MPC designation||2008 HJ|
|Epoch August 27, 2011 (2455800.5)|
|Aphelion||2.29608 AU (Q)|
|Perihelion||0.967688 AU (q)|
|1.6319 AU (a)|
|2.0847 yr (761.4 d)|
Sidereal rotation period
|42.7 s (0.01185 h)|
2008 HJ is a small near-Earth asteroid orbiting the Sun. It was discovered by Lincoln Laboratory ETS, New Mexico. Observers M. Bezpalko, D. Torres, R. Kracke, G. Spitz, J. Kistler. Richard Miles using the Faulkes Telescope South at Siding Spring Observatory, Australia determined that the asteroid rotates rapidly. It measures only 12 m by 24 m and is very dense, having a mass of about 5,000 tonnes. If the asteroid was not dense, it is probable that the rapid rotation would cause the asteroid to disrupt and fly apart.
- "JPL Small-Body Database Browser: (2008 HJ)" (last observation: 2008-04-30; arc: 6 days; uncertainty: 6). Jet Propulsion Laboratory. Retrieved 2011-11-14.
- Record spin for new-found asteroid, BBC.com, 30 May 2008
- "Earth Impact Risk Summary: 2008 HJ". NASA/JPL Near-Earth Object Program Office. Retrieved 2014-04-16.
- MPEC 2008-H26 : 2008 HJ (Discovery)
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