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Orbital diagram of 2011 AG 5 (green) passing the Earth-Moon system in February 2040 (orbital solution from 2011) 2011 AG 5 was discovered on 8 January 2011 by the Mount Lemmon Survey at an apparent magnitude of 19.6 using a 1.52-meter (60 in) reflecting telescope. [3] [2] Pan-STARRS precovery images from 8 November 2010 extended the observation ...
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.
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 ...
The asteroid was discovered in August and is set to become a mini-moon, revolving around Earth in a horseshoe shape from Sept. 29 to Nov. 25. Researchers at the Asteroid Terrestrial-impact Last ...
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, based on the close approach database of the Center for Near-Earth Object Studies (CNEOS).
Called a "mini-moon" of sorts by some, it temporarily entered Earth's orbit on Sept. 29 from the Arjuna asteroid belt, which follows a similar orbital path around the sun as the Earth.
The 10m-wide asteroid, dubbed 2024 PT5, will become a mini-moon from 29 September until 25 November, astronomers said in a new study published in the journal Research Notes of the AAS.
In 2021, the 40–100 m (130–330 ft) asteroid 469219 Kamoʻoalewa, which is a quasi-satellite of Earth (orbiting the Sun with the same period and phase as the Earth, appearing to orbit the Earth when viewed from there) was found to have a chemical composition similar to that of the lunar surface. [9]