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2021 PH 27 is a near-Earth asteroid of the Atira group.It was discovered by Scott Sheppard using the Dark Energy Survey's DECam imager at NOIRLab's Cerro Tololo Inter-American Observatory on 13 August 2021.
First asteroid discovered from space; source of Geminids meteor shower. 3753 Cruithne: 5: October 10, 1986: Unusual Earth-associated orbit 4179 Toutatis: 4.5×2.4×1.9: January 4, 1989: Closely approached Earth on September 29, 2004 4769 Castalia: 1.8×0.8: August 9, 1989: First asteroid to be radar-imaged in sufficient detail for 3D modeling ...
The chances of asteroid 2024 YR4 colliding with Earth in 2032 hit a record high. Experts expect the risk percentage to fluctuate before likely dropping to zero. Here’s why.
Asteroid designation Date & time (UTC) of discovery Discoverer Estimated size Abs. mag. Date & time (UTC) of impact Warning time Location of impact Airburst altitude Energy Method of impact detection Reference 2008 TC 3: 2008-10-06 06:39 Mt. Lemmon Survey: 3.8–4.4 m (12–14 ft) 30.72: 2008-10-07 02:45 20:05: 20.9 N, 31.8 E Nubian Desert in ...
A small asteroid was visible in northern Siberia on Tuesday, as it closed in on its collision course with Earth. The European Space Agency issued an alert for the 27-inch asteroid at 4:27 a.m. ET ...
Asteroid 2024 YR4, detected by telescopes on December 27, 2024, is estimated to be 131 to 295 feet (40 to 90 meters) wide, comparable to a large building, and could cause local devastation if it ...
Observations of Torifune's infrared thermal emission by the Spitzer Space Telescope in 2005 show that it is a small asteroid with a mean diameter of 465 m (1,526 ft). [4]: 1 The asteroid's diameter and brightness in visible light indicate it has a geometric albedo of 21.6%, which agrees with near-infrared spectroscopy observations which show that Torifune is a stony S-type asteroid composed of ...
Asteroid 2024 YR4 has a 1.3% chance of impacting Earth in 2032, NASA reports. Astronomers all over the world are watching the asteroid, trying to narrow down its future path.