53 Kalypso is a large and very dark main belt asteroid that was discovered by German astronomer Robert Luther on April 4, 1858, at Düsseldorf. It is named after Calypso, a sea nymph in Greek mythology, a name it shares with Calypso, a moon of Saturn.
94 Aurora is one of the largest main-belt asteroids. With an albedo of only 0.04, it is darker than soot, and has a primitive composition consisting of carbonaceous material. It was discovered by J. C. Watson on September 6, 1867, in Ann Arbor, and named after Aurora, the Roman goddess of the dawn.
100 Hekate is a large main-belt asteroid.
103 Hera is a moderately large main-belt asteroid with an orbital period of 4.44 years. It was discovered by Canadian-American astronomer James Craig Watson on September 7, 1868, and named after Hera, queen and fifth in power of the Olympian gods in Greek mythology. This is a stony S-type asteroid with a silicate surface composition.
128 Nemesis is a large 180 km main-belt asteroid, of carbonaceous composition. It rotates rather slowly, taking about 78 hours to complete one rotation. Nemesis is the largest member of the Nemesian asteroid family bearing its name. It was discovered by J. C. Watson on 25 November 1872, and named after Nemesis, the goddess of retribution in Greek mythology.
133 Cyrene is a fairly large and very bright main-belt asteroid that was discovered by J. C. Watson on 16 August 1873 in Ann Arbor, Michigan, and named after Cyrene, a nymph, daughter of king Hypseus and beloved of Apollo in Greek mythology. It is classified as an S-type asteroid based upon its spectrum. It is listed as a member of the Hecuba group of asteroids that orbit near the 2:1 mean-motion resonance with Jupiter.
153 Hilda is a large asteroid in the outer main belt, with a diameter of 170 km. The spectrum matches that of a P-type asteroid. It was discovered by Johann Palisa on 2 November 1875, from the Austrian Naval Observatory at Pula, now Croatia. The name was chosen by the astronomer Theodor von Oppolzer, who named it after one of his daughters. It is the largest member of the hilda family, a collisional family of asteroids in the Hilda region.
315 Constantia is a stony background asteroid from the inner region of the asteroid belt, approximately 6.5 kilometers in diameter. It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 4 September 1891. The asteroid is a member of the Flora family. It is spinning with a rotation period of 5.345±0.003 h and shows a brightness variation of 0.57±0.2 in magnitude.
358 Apolonia is a large Main belt asteroid. It was discovered by Auguste Charlois on 8 March 1893 in Nice.
372 Palma is one of the largest main-belt asteroids. It is a B-type asteroid.
373 Melusina is a large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material. It was discovered by Auguste Charlois on 15 September 1893 in Nice.
386 Siegena is a very large main-belt asteroid. It is classified as a C-type asteroid and is probably composed of primitive carbonaceous material.
388 Charybdis is a very large background asteroid, approximately 125 kilometers in diameter, that is located the outer region of the asteroid belt. It was discovered by French astronomer Auguste Charlois at the Nice Observatory on 7 March 1894. The carbonaceous C-type asteroid has a rotation period of 9.5 hours. It is probably named after Charybdis, a sea monster in Greek mythology.
392 Wilhelmina is a large Main belt asteroid.
403 Cyane is a typical Main belt asteroid.
407 Arachne is a large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material. It was discovered on 13 October 1895, by German astronomer Max Wolf at Heidelberg Observatory.
417 Suevia is a typical Main belt asteroid. It is classified as a K-type/S-type asteroid.
545 Messalina is a minor planet, specifically an asteroid orbiting primarily in the asteroid belt. It was discovered on 3 October 1904 by Paul Götz, at Heidelberg. It is named after Valeria Messalina, the third wife of Roman Emperor Claudius.
662 Newtonia is a minor planet, specifically an asteroid orbiting mostly in the asteroid belt.
3360 Syrinx is an Apollo and Mars crosser asteroid discovered in 1981. It approaches Earth to within 40 Gm three times in the 21st century: 33 Gm in 2039, 40 Gm in 2070, and 24 Gm in 2085.
