ʻOumuamua - Wikipedia
ʻOumuamua is a small object estimated to be between 100 and 1,000 metres (300 and 3,000 ft) long, with its width and thickness both estimated between 35 and 167 metres (115 and 548 ft). [13] It has a red color, like objects in the outer Solar System.
What's the smallest known asteroid? What about the largest?
2023年3月6日 · The smallest asteroid is more difficult to pin down; the smallest asteroid officially recognized by NASA, known as asteroid 2015 TC25, is 6 feet (2 meters) across. Some definitions purport...
2015 TC25 - Wikipedia
2015 TC25 is a near-Earth asteroid, and at only 6 feet (1.8 meters) across and absolute magnitude 29.34 mag, it is thought to be the third smallest asteroid observed over multiple years, after 2021 GM 1 with absolute magnitude 30.4 and 2006 RH 120 with absolute magnitude 29.5.
Smallest known asteroid characterized using Earth-based …
2016年11月30日 · Astronomers have obtained observations of the smallest asteroid ever characterized in detail. At 2 meters (6 feet) in diameter, the tiny space rock is small enough to be straddled by a...
6-Foot-Wide 'Bald' Asteroid Is Smallest Ever Studied | Space
2016年12月1日 · Astronomers have set a new record, taking the measure of a tiny space rock just 6 feet (2 meters) wide. The researchers used four different telescopes on Earth to study the near-Earth asteroid...
152830 Dinkinesh - Wikipedia
152830 Dinkinesh (provisional designation 1999 VD 57) is a binary main-belt asteroid about 790 meters (2,600 feet) in diameter. It was discovered by the Lincoln Near-Earth Asteroid Research (LINEAR) survey at Socorro, New Mexico on 4 November 1999. Dinkinesh, the name borrowed from an Ethiopian word for the Lucy fossil, was the first flyby target of NASA's Lucy mission, …
Dinkinesh - NASA Science
Dinkinesh is a small asteroid located in the main asteroid belt between Mars and Jupiter. On Nov. 1, 2023, NASA’s Lucy spacecraft flew by the asteroid, and sent back images showing that Dinkinesh has a moon, which has been named Selam.
Lucy’s flyby of Dinkinesh: Everything you need to know
2023年11月9日 · First up was Dinkinesh, a small asteroid 480 million kilometers (300 million miles) away from Earth in the main asteroid belt beyond Mars. Lucy passed Dinkinesh on Wednesday, Nov. 1, 2023, and discovered what first appeared to be …
Webb Detects Extremely Small Main Belt Asteroid - NASA
2023年2月6日 · An asteroid roughly the size of Rome’s Colosseum — between 300 to 650 feet (100 to 200 meters) in length — has been detected by an international team of European astronomers using NASA’s James Webb Space Telescope.
NASA’s Lucy Asteroid Mission Zips Past a ‘Dinky’ Space Rock
On November 1 a NASA spacecraft called Lucy will introduce humans to a world called Dinkinesh—nicknamed Dinky—the smallest main-belt asteroid we’ve ever seen up close.