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The Eunomia or Eunomian family is a large asteroid family of S-type asteroids named after the asteroid 15 Eunomia. It is the most prominent family in the intermediate asteroid belt and the 6th-largest family with nearly six thousand known members, or approximately 1.4% of all asteroids in the asteroid belt.
110 Lydia is a large belt asteroid with an M-type spectrum, and thus may be metallic in composition, consisting primarily of nickel-iron. It was discovered by French astronomer Alphonse Borrelly on 19 April 1870 and was named for Lydia, the Asia Minor country populated by Phrygians. The Lydia family of asteroids is named after it.
An asteroid family is a population of asteroids that share similar proper orbital elements, such as semimajor axis, eccentricity, and orbital inclination. The members of the families are thought to be fragments of past asteroid collisions. An asteroid family is a more specific term than asteroid group whose members, while sharing some broad orbital characteristics, may be otherwise unrelated to each other.
293 Brasilia is a large Main belt asteroid that was discovered by French astronomer Auguste Charlois on 20 May 1890 in Nice. It is the namesake of the Brasilia family, a smaller asteroid family of X-type asteroids in the outer main-belt. However, Brasilia is a suspected interloper in its own family.
322 Phaeo is an asteroid from the central regions of the asteroid belt, approximately 70 kilometers in diameter. It was discovered on 27 November 1891, by French astronomer Alphonse Borrelly at the Marseille Observatory in southern France. The presumably metallic X-type asteroid is the principal body of the Phaeo family and has a rotation period of 17.6 hours. It was named for the Greek mythological figure Phaeo, one of the Hyades or nymphs. Several other asteroids were named for other of the Hyades – 106 Dione, 158 Koronis, 217 Eudora, and 308 Polyxo.
547 Praxedis, provisional designation 1904 PB, is a Postremian asteroid from the central regions of the asteroid belt, approximately 52 kilometers in diameter.
1766 Slipher, provisional designation 1962 RF, is a Paduan asteroid from the central regions of the asteroid belt, approximately 18 kilometers in diameter. It was discovered on 7 September 1962, by astronomers of the Indiana Asteroid Program at Goethe Link Observatory in Indiana, United States. The asteroid was named after American astronomers Vesto Slipher and his brother Earl C. Slipher.
The Maria family is a collisional asteroid family located in the inner parts of the intermediate asteroid belt, near the 1:3 Kirkwood gap. The family consist of several thousand stony S-type asteroids. It is named after its parent body and lowest numbered member, the asteroid 170 Maria. It is also known as the Roma family, named after its alternative parent body, 472 Roma.
1517 Beograd, provisional designation 1938 FD, is a dark Paduan asteroid from the central region of the asteroid belt, approximately 36 kilometers in diameter. It was discovered on 20 March 1938, by Serbian astronomer Milorad Protić at Belgrade Astronomical Observatory in Serbia. It is named after the city Belgrade.
16879 Campai (provisional designation 1998 BH10) is a stony Witt asteroid and slow rotator from the central region of the asteroid belt, approximately 10 kilometers (6 miles) in diameter. The S-type asteroid was discovered on 24 January 1998, by Italian astronomers Andrea Boattini and Maura Tombelli at the Pistoia Mountains Astronomical Observatory in San Marcello Pistoiese, Tuscany, central Italy. It was named for Italian amateur astronomer Paolo Campai.
133528 Ceragioli, provisional designation 2003 TC2, is an asteroid of the Koronis family from the outer regions of the asteroid belt, approximately 1.75 kilometers (1.1 miles) in diameter. It was discovered on 4 October 2003 by American astronomer David Healy at the Junk Bond Observatory in Arizona, United States. The likely stony and possibly elongated asteroid has a rotation period of 3.1 hours. It was named for American optician Roger Ceragioli.
1212 Francette is a dark Hildian asteroid from the outermost regions of the asteroid belt, approximately 82 kilometers in diameter. It was discovered on 3 December 1931, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa, who named it after his wife Francette Boyer.
1199 Geldonia is an Eoan asteroid from the outer regions of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 14 September 1931, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The asteroid was named after the Belgian town of Jodoigne.
21509 Lucascavin (provisional designation 1998 KL35) is a small asteroid from the inner regions of the asteroid belt, approximately 2.5 kilometers (1.6 miles) in diameter. It is the namesake of the tiny Lucascavin family located within the Flora clan. It was discovered on 22 May 1998, by astronomers with the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico. The presumed S-type asteroid has a rotation period of 5.8 hours. It was named for the 2005-ISEF awardee Lucas James Cavin.
1392 Pierre, provisional designation 1936 FO, is a dark, dynamical Eunomian asteroid from the central regions of the asteroid belt, approximately 26 kilometers (16 mi) in diameter. It was discovered on 16 March 1936, by astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa. The asteroid was named after the discoverer's nephew, Pierre.
4001 Ptolemaeus, provisional designation 1949 PV, is a Florian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 2 August 1949, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Heidelberg, Germany. In 1991, the International Astronomical Union named the S-type asteroid after Greco-Roman astronomer Ptolemy.
2732 Witt, provisional designation 1926 FG, is a bright asteroid and namesake of the Witt family located in the central regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 19 March 1926, by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory in Heidelberg, Germany. The unusual A-type asteroid was named after astronomer Carl Gustav Witt.
51983 Hönig (provisional designation 2001 SZ8) is a Hildian asteroid from the outermost regions of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 19 September 2001, by astronomers Charles Juels and Paulo Holvorcem at the Fountain Hills Observatory (678) in Arizona, United States. The asteroid was named after German astronomer Sebastian Hönig.
(39546) 1992 DT5 is a dark Hoffmeister asteroid and exceptionally slow rotator from the central region of the asteroid belt, approximately 5.3 kilometers (3.3 miles) in diameter. The likely elongated C-type asteroid was discovered on 29 February 1992, by the Uppsala–ESO Survey of Asteroids and Comets at ESO's La Silla astronomical observatory site in northern Chile.
9799 Thronium, provisional designation: 1996 RJ, is a large Jupiter trojan from the Greek camp and the parent body of a small, unnamed asteroid family (006), approximately 68 kilometers in diameter. It was discovered on 8 September 1996, by American astronomer Timothy Spahr at the Catalina Station of the Steward Observatory near Tucson, Arizona, in the United States. The assumed C-type asteroid belongs to the 50 largest Jupiter trojans and has a relatively long rotation period of 21.52 hours. It was named for the ancient Greek city of Thronium mentioned in the Iliad.
References
- 1 2 3 4 Carruba, V. (May 2009). "The (not so) peculiar case of the Padua family". Monthly Notices of the Royal Astronomical Society. 395 (1): 358–377. Bibcode:2009MNRAS.395..358C. doi: 10.1111/j.1365-2966.2009.14523.x .
- ↑ Carruba, V.; Domingos, R. C.; Nesvorný, D.; Roig, F.; Huaman, M. E.; Souami, D. (August 2013). "A multidomain approach to asteroid families' identification". Monthly Notices of the Royal Astronomical Society. 433 (3): 2075–2096. arXiv: 1305.4847 . Bibcode:2013MNRAS.433.2075C. doi: 10.1093/mnras/stt884 . S2CID 118511004.
- 1 2 Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv: 1502.01628 . Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131. S2CID 119280014.
- 1 2 "Small Bodies Data Ferret". Nesvorny HCM Asteroid Families V3.0. Archived from the original on 16 August 2017. Retrieved 22 July 2017.
- ↑ Ridpath, Ian (2003). Oxford Dictionary of Astronomy. Oxford University Press. ISBN 0199609055 . Retrieved 25 January 2016.
- ↑ "AstDyS-2 data for (308) Polyxo". AstDyS – Asteroids Dynamic Site. Retrieved 30 August 2017.