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A.R. Gibbs of the Mount Lemmon Observatory in Arizona discovered the comet based on images acquired by the sky survey's 1.5-m reflecting telescope on 23 March 2012. [4] However, Gibbs did not recognize its cometary appearance and was listed as an asteroid on the Minor Planet Center's Near-Earth Object Confirmation Page. [5]
An asteroid-like object with an apparent magnitude of 19.4 was spotted with cometary activity from images taken by the Lincoln Near-Earth Asteroid Research survey on the night of 8 December 2012. [1] From April 2014 onwards, the comet slowly faded away as it made its way back to the outer Solar System.
This is a list of asteroids that have impacted Earth after discovery and orbit calculation that predicted the impact in advance. As of December 2024 [update] , all of the asteroids with predicted impacts were under 5 m (16 ft) in size that were discovered just hours before impact, and burned up in the atmosphere as meteors .
The discovery was made using the 0.4-meter (16 in) reflector of the International Scientific Optical Network (ISON) near Kislovodsk, Russia. [1] Data processing was carried out by automated asteroid-discovery program CoLiTec. [7] Precovery images by the Mount Lemmon Survey from 28 December 2011 and by Pan-STARRS from 28 January 2012 were ...
An Earth-crosser is a near-Earth asteroid whose orbit crosses that of Earth as observed from the ecliptic pole of Earth's orbit. [1] The known numbered Earth-crossers are listed here. Those Earth-crossers whose semi-major axes are smaller than Earth's are Aten asteroids; the remaining ones are Apollo asteroids. (See also the Amor asteroids.)
An asteroid that’s somewhere between 30 and 100 feet long is hurtling through space in the direction of Earth at 30,000 miles per hour. Asteroid 2012 TC4 is going to fly by Earth on October 12 ...
Discovery date Description 2006 JY 26: May 6, 2006 Nearly missed the Moon and the Earth on May 9–10, 2006, and may impact the Earth on May 3, 2073. [5] 2007 WD 5: November 20, 2007 Nearly missed Mars on January 9, 2008 [6] [7] 2008 TC 3: October 6, 2008 Struck Earth on October 7, 2008 [8] 2012 XE 133: December 12, 2012 Currently a temporary ...
367943 Duende (provisional designation 2012 DA 14) is a micro-asteroid and a near-Earth object of the Aten and Atira group, approximately 30 meters (98 ft) in diameter.It was discovered by astronomers of the Astronomical Observatory of Mallorca at its robotic La Sagra Observatory in 2012, and named for the duende, a goblin-like creature from Iberian mythology and folklore. [1]