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Also includes the asteroid belt (the white donut-shaped cloud), the Hildas (the orange "triangle" just inside the orbit of Jupiter), the Jupiter trojans (green), and the near-Earth asteroids. The group that leads Jupiter are called the "Greeks" and the trailing group are called the "Trojans" (Murray and Dermott, Solar System Dynamics , pg. 107)
000343-asteroid_shape_model_(343)_Ostara.png (250 × 250 pixels, file size: 15 KB, MIME type: image/png) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
An asteroid is a minor planet—an object that is neither a true planet nor an identified comet— that orbits within the inner Solar System.They are rocky, metallic, or icy bodies with no atmosphere, classified as C-type (carbonaceous), M-type (), or S-type (silicaceous).
Following the discovery of Leleākūhonua, Sheppard et al. concluded that it implies a population of about 2 million inner Oort cloud objects larger than 40 km (25 mi), with a combined total mass of 1 × 10 22 kg, about the mass of Pluto (a fraction the mass of Earth's moon but several times the mass of the asteroid belt). [5]
25143 Itokawa (provisional designation 1998 SF 36) is a sub-kilometer near-Earth object of the Apollo group and also a potentially hazardous asteroid.It was discovered by the LINEAR program in 1998 and later named after Japanese rocket engineer Hideo Itokawa. [1]
On Sunday, the asteroid will reach a peak brightness of magnitude 9.4, which is too faint for the naked eye but visible through entry-level binoculars or a backyard telescope, according to ...
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