Asteroids


Name Year of
discovery
Discoverer Diameter
(km)
Average Distance from Sun Orbital
period
(years)
(AU) (106 km)
Amphitrite 1854 A. Marth 240 2.554 382.1 4.08
Camilla 1868 N. Pogson 236 3.488 521.8 6.50
Chiron 1977 C. Kowal 180 13.716 2051.9 50.80
Cybele 1861 E. Tempel 246 3.429 513.0 6.37
Daphne 1856 H. Goldschmidt 182 2.765 413.6 4.59
Davida 1903 R. Dugan 336 3.178 475.4 5.67
Doris 1857 H. Goldschmidt 226 3.112 465.5 5.48
Egeria 1850 A. de Gasparis 114 2.576 385.4 4.14
Elpis 1860 J. Chacornac 174 2.713 405.9 4.47
Eros 1898 G. Witt 33 1.46 218.4 33
Eugenia 1857 H. Goldschmidt 114 2.721 407.1 4.49
Eunomia 1851 A. De Gasparis 272 2.644 395.5 4.30
Euphrosyne 1854 J. Ferguson 248 3.156 472.1 5.58
Europa 1858 H. Goldschmidt 312 3.097 463.3 5.46
Freia 1862 H. d'Arrest 190 3.390 466.6 5.49
Hebe 1847 K. Hencke 192 2.425 362.8 3.78
Hygiea 1849 A. De Gasparis 430 3.144 470.3 5.59
Interamnia 1910 V. Cerulli 334 3.062 458.1 5.36
Iris 1847 J. Hind 204 2.386 356.9 3.68
Juno 1804 K. Harding 244 2.670 399.4 4.36
Kalliope 1852 J. Hind 188 2.910 435.3 4.97
Lutetia 1852 H. Goldschmidt 96 2.435 364.3 3.80
Mathilde 1885 Johann Palisa 61 2.46 290 4.3
Pallas 1802 H. Olbers 522 2.771 414.5 4.61
Psyche 1852 A. De Gasparis 264 2.922 437.1 5.00
Sylvia 1866 N. Pogson 272 3.486 521.5 6.52
Toutatis 1989 C. Pollas 4.6 x 2.29 x 1.92 2.512 375.8 3.98
Vesta 1807 H. Olbers 500 2.362 353.4 3.63

Last modified July 15, 2010 by Randy Russell.

You might also be interested in:

Cool It! Game

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

Asteroid Lutetia

Lutetia is a medium-sized asteroid which orbits in the main asteroid belt between the planets Mars and Jupiter. It is officially known as "21 Lutetia" because it was the 21st asteroid discovered. The asteroid...more

NEAR FLyby of Asteroid Mathilde

On June 27, 1997, the NEAR spacecraft passed within 1200 km of the asteroid Mathilde. NEAR stands for Near Earth Asteroid Rendevous. It is one of NASA's Discovery missions, a series of small-scale spacecraft...more

Asteroid Toutatis

Toutatis is a very odd asteroid. It appears to be two asteroids that are either loosely stuck together, rolling around against each other, or orbiting very close to one another. The orbit of Toutatis crosses...more

NEAR to Touchdown on Surface of Asteroid!

The NEAR spacecraft has been in orbit around the asteroid Eros since Valentine's Day of last year. It has met all of its science goals. It has been a huge success within NASA's low-cost planetary exploration...more

Pluto demoted - no longer a Planet!

Pluto has been officially demoted from its status as a planet. The International Astronomical Union (IAU), at a meeting in August 2006, voted on their first "official" definition of a planet....more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA