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"More generally, with every new observation of an asteroid or asteroid system, we learn more about how asteroids form and evolve. They are complex systems, but have some key similarities ...
In the main asteroid belt, there appear to be two primary populations of asteroid: a dark, volatile-rich population, consisting of the C-type and P-type asteroids, with albedos less than 0.10 and densities under 2.2 g/cm 3, and a dense, volatile-poor population, consisting of the S-type and M-type asteroids, with albedos over 0.15 and densities ...
An asteroid spectral type is assigned to asteroids based on their reflectance spectrum, color, and sometimes albedo. These types are thought to correspond to an asteroid's surface composition. For small bodies that are not internally differentiated, the surface and internal compositions are presumably similar, while large bodies such as Ceres ...
Coupon. In marketing, a coupon is a ticket or document that can be redeemed for a financial discount or rebate when purchasing a product . Customarily, coupons are issued by manufacturers of consumer packaged goods [ 1] or by retailers, to be used in retail stores as a part of sales promotions. They are often widely distributed through mail ...
C-type asteroids are made of clay and silicate rocks, while S-types are composed of silicate materials and nickel-iron. Stony asteroids are part of the most common class of potentially hazardous ...
Lucy is a NASA space probe on a twelve-year journey to eight different asteroids. It is slated to visit two main belt asteroids as well as six Jupiter trojans – asteroids that share Jupiter's orbit around the Sun, orbiting either ahead of or behind the planet. [4] [5] All target encounters will be flyby encounters. [6]
Herculina is one of the larger members of the main asteroid belt. It is believed to rank among the top 20 in size, but the exact dimensions of many large asteroids are still uncertain. The current estimate for its mass would rank it close to the top 10. It has often been noted for its complex lightcurves, which made determination of its shape ...
A binary system is a system of two astronomical bodies of the same kind that are comparable in size. Definitions vary, but typically require the center of mass to be located outside of either object. (See animated examples .) The most common kinds of binary system are binary stars and binary asteroids, but brown dwarfs, planets, neutron stars ...