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A list of known near-Earth asteroid close approaches less than 1 lunar distance (384,400 km or 0.00257 AU) from Earth in 2011. [note 1] Rows highlighted red indicate objects which were not discovered until after closest approach Rows highlighted yellow indicate objects discovered less than 24 hours before closest approach
2011 MD is a bright micro-asteroid, classified as near-Earth object of the Apollo and Amor group, respectively. [ 1 ] [ 3 ] On 27 June 2011, at around 17:00 UTC (13:00 EDT), the object passed exceptionally close to Earth's surface at a distance of approximately 12,000 kilometers (7,500 mi), roughly the diameter of the Earth.
Trajectory of 2004 FH in the Earth–Moon system Goldstone radar images of asteroid 2007 PA 8 's Earth flyby in 2012. This is a list of examples where an asteroid or meteoroid travels close to the Earth. Some are regarded as potentially hazardous objects if they are estimated to be large enough to cause regional devastation.
Goldstone radar images of asteroid 99942 Apophis on 8–10 March 2021 Goldstone radar images of asteroid 2001 FO 32 during closest approach on 21 March 2021. Below is an example list of near-Earth asteroids that passed or will pass more than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2021.
C/2011 L4 was spotted without optical aid on 7 February 2013 at a magnitude of ~6. [14] Comet PANSTARRS was visible from both hemispheres in the first weeks of March, [15] and passed closest to Earth on 5 March 2013 at a distance of 1.09 AU. [7] It came to perihelion (closest approach to the Sun) on 10 March 2013. [3]
The object was then provisionally designated 2021 PH 27 by the Minor Planet Center and announced on 21 August 2021. [1] Even in April 2021, the asteroid was never more than 45 degrees from the Sun. [11] Precovery observations of 2021 PH 27 were found in archival Dark Energy Survey images from 16 July 2017. These observations were published by ...
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1566 Icarus (/ ˈ ɪ k ər ə s / IK-ə-rəs; provisional designation: 1949 MA) is a large near-Earth object of the Apollo group and the lowest numbered potentially hazardous asteroid. [20] It has an extremely eccentric orbit (0.83) and measures approximately 1.4 km (0.87 mi) in diameter. In 1968, it became the first asteroid ever observed by ...