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An artist’s impression of an asteroid near Earth (iStock/ Getty Images) ... as in the case of 2022 NX1 – which joined Earth as a mini-Moon in 1981 and then came back in 2022.
However, this almost-mini-moon is still special as it is potentially a piece of the real moon, said Dr. Teddy Kareta, a postdoctoral associate at Lowell Observatory in Arizona.
Lunar Noah's Ark? The proposal to preserve species facing extinction on the moon. What was the 'mini-moon?' The asteroid, known as 2024 PT5, was first spotted Aug. 7 by astronomers using the NASA ...
The object orbits the Sun but makes slow close approaches to the Earth–Moon system. Between 29 September (19:54 UTC) and 25 November 2024 (16:43 UTC) (a period of 1 month and 27 days) [4] it passed just outside Earth's Hill sphere (roughly 0.01 AU [1.5 million km; 0.93 million mi]) at a low relative velocity (in the range 0.002 km/s (4.5 mph) – 0.439 km/s [980 mph]) and became temporarily ...
A New Mini-Moon Was Found Orbiting Earth. There Will Be More. by Rebecca Boyle, The New York Times, 27 Feb 2020; Gemini Telescope Images "Minimoon" Orbiting Earth — in Color! Archived 10 August 2020 at the Wayback Machine, OIR Laboratory press release, 27 Feb 2020; Looks like Earth has a new natural moon by Deborah Byrd, EarthSky, 26 Feb 2020
So stay tuned for pictures. When the mini-moon returns. The asteroid won't make a close approach to Earth until after it loses mini-moon status, though. In November, the sun's gravity will pull it ...
The mini-moon will be small — 33 feet long — and dim. NASA uses magnitude to describe brightness in space. A 6.5 magnitude is generally the dimmest object the human eye can see.
In order to be considered a "mini-moon," an incoming object must reach Earth at a range around 2.8 million miles and at a steady space of about 2,200 mph, according to Marcos.