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Astronomers Capture Images of Asteroid 2012 BX34′s Close Flyby of Earth
Animation of asteroid 2012 BX34′s flyby of Earth on January 27, 2012, at 11:04 UTC, using the GRAS telescope in New Mexico, USA. E. Credit: Guido, G. Sostero & N. Howes. Click to animate.
Small asteroid 2012 BX34 skimmed past Earth today, January 27, 2012, with closest approach at about 15:25 UT, and it passed only about 59,044 km (36,750 miles) or about ~0.2 lunar distance (or 0.0004 AU) above the Earth’s surface. It was discovered just a few days ago by the Catalina Sky Survey in Arizona.
Above is an animation created by image from Ernesto Guido, Giovanni Sostero & Nick Howes from the Remanzacco Observatory in Italy. However, they took this series of images remotely from the GRAS Observatory, near Mayhill, New Mexico, using a 0.10-m f/5 reflector + CCD.
“According to its absolute magnitude (H=27.6) this asteroid has an estimated diameter of roughly 8-18 meters, so it is very small,” the team said on their website. “At the moment of our images from New Mexico on January 27, 11:04UT, 2012 BX34 was moving at about ~318.86 “/min and its magnitude was ~15. At the moment of its close approach around 15UT of today, 2012 BX34 will be bright as magnitude ~13.8 and moving at ~1810 “/min.”
Below is a single 120-seconds exposure showing the object as a ~11-arcminutes trail (due to its fast speed). Also below is a video from Peter Lake using his telescope in New Mexico remotely from Melbourne Australia, who took a series of 11 images just 6 hours before its closest approach.
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Read the rest of Astronomers Capture Images of Asteroid 2012 BX34′s Close Flyby of Earth (194 words)
© nancy for Universe Today, 2012. | Permalink | No comment | Add to del.icio.us
Post tags: Asteroi 2012 BX34, Asteroids
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One of the closest ever flybys at exactly the same time as an X Flare and proton event from the sun (which should hit the mainstream shortly). Nice coincidence.