2024年11月3日 · NASA’s Hubble Space Telescope observations in 2003 and 2004 of Ceres as it rotated demonstrated that is a nearly spherical body. Ceres is approximately 585 miles (940 kilometers) across. Ceres comprises 35 percent of the main asteroid belt’s total mass.

2020年8月10日 · NASA’s Dawn spacecraft gave scientists extraordinary close-up views of the dwarf planet Ceres, which lies in the main asteroid belt between Mars and Jupiter. By the time the mission ended in October 2018, the orbiter had dipped to less than 22 miles (35 kilometers) above the surface, revealing crisp details of the mysterious bright regions ...

Dwarf planet Ceres is the largest object in the asteroid belt between Mars and Jupiter, and it's the only dwarf planet located in the inner solar system. It was the first member of the asteroid belt to be discovered when Giuseppe Piazzi spotted it in 1801.

1 Ceres - The largest and first discovered asteroid, by G. Piazzi on January 1, 1801. Ceres comprises over one-third the 2.3 x 10 21 kg estimated total mass of all the asteroids. Studied from orbit by the Dawn mission in 2015-2016.

2024年11月3日 · Dawn was NASA’s first truly interplanetary spaceship. The mission featured extended stays at two very different extraterrestrial bodies: giant asteroid Vesta and dwarf planet Ceres. Both small worlds reside in the debris-strewn main asteroid belt between Mars and Jupiter.

2018年8月16日 · During its decade-long journey, Dawn has observed planet-like worlds Vesta and Ceres, collecting detailed data about the two fascinating bodies in the main asteroid belt. Initial data from ground-based telescopes and NASA’s Hubble Space Telescope provided some information about what we might find at the two bodies, though they had never been ...

2016年1月26日 · Today, NASA's Dawn mission allows us to see Ceres in exquisite detail. From the images Dawn has taken over the past year, we know Ceres is a heavily cratered body with diverse features on its surface that include a tall, cone-shaped mountain and more than 130 reflective patches of material that is likely salt.

2007年9月27日 · Dawn orbited the protoplanet Vesta and is now in orbit around the dwarf planet Ceres as part of its mission to characterize the conditions and processes that shaped our solar system. Vesta and Ceres are the two most massive bodies in the main asteroid belt between Mars and Jupiter.

The following page contains data sets and tools related to asteroid missions. The IPDA maintains a glossary of agency acronyms. Links will open in a new tab.

The latest chapter in the asteroid saga is being written about Ceres, the largest asteroid in the solar system and recently declared to also be a dwarf planet (like Pluto).