Discovery [1] [2] | |
---|---|
Discovered by | P. Götz |
Discovery site | Heidelberg Obs. |
Discovery date | 14 October 1904 |
Designations | |
(547) Praxedis | |
Pronunciation | /prækˈsiːdɪs/ (Πραξηδίς) |
Named after | Novel character [3] (Joseph Victor von Scheffel) |
1904 PB | |
main-belt ·(middle) Postrema [4] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 112.72 yr (41,171 days) |
Aphelion | 3.4304 AU |
Perihelion | 2.1237 AU |
2.7770 AU | |
Eccentricity | 0.2353 |
4.63 yr (1,690 days) | |
161.79° | |
0° 12m 46.8s / day | |
Inclination | 16.899° |
193.21° | |
195.64° | |
Physical characteristics | |
Dimensions | 52.462±1.716 km [1] |
9.105 h (0.3794 d) [1] | |
0.101±0.009 [1] | |
Tholen = XD: [1] SMASS = Xk [1] B–V = 0.761 [1] U–B = 0.254 [1] | |
9.52 [1] | |
Praxedis (minor planet designation: 547 Praxedis), provisional designation 1904 PB, is a Postremian asteroid from the central regions of the asteroid belt, approximately 52 kilometers in diameter.
The asteroid was discovered on 14 October 1904, by astronomer Paul Götz at the Heidelberg-Königstuhl State Observatory in southwest Germany. [2] It was named from literature after the character "Praxedis" in Joseph Victor von Scheffel's historical romance Ekkehard (1855). The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 58 ).
Praxedis is a member of the Postrema family ( 541 ), [4] a mid-sized central asteroid family of little more than 100 members. [5] : 23 It orbits the Sun in the central main-belt at a distance of 2.1–3.4 AU once every 4 years and 8 months (1,690 days). Its orbit has an eccentricity of 0.24 and an inclination of 17° with respect to the ecliptic. [1]
In the Tholen classification, Praxedis has an ambiguous spectral type, closest to an X-type and somewhat similar to that of a darker D-type asteroid. In the SMASS classification it is a Xk-subtype that transitions from the X- to the rare K-type asteroids. [1] According to the survey carried out by NASA's Wide-field Infrared Survey Explorer, Praxedis measures 52.462 kilometers in diameter and its surface has an albedo of 0.101. [1]
25924 Douglasadams (provisional designation 2001 DA42) is a Nysian asteroid from the inner regions of the asteroid belt, approximately 2.4 kilometers in diameter. It was discovered on 19 February 2001, by astronomers of the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site in New Mexico, United States. The asteroid was named for novelist Douglas Adams.
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.
1767 Lampland, provisional designation 1962 RJ, is an Eoan asteroid from the outer regions of the asteroid belt, approximately 15 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 astronomer Carl Lampland.
1045 Michela, provisional designation 1924 TR, is an stony Massalian asteroid from the inner regions of the asteroid belt, approximately 6 kilometers kilometers in diameter. It was discovered on 19 November 1924, by Belgian–American astronomer George Van Biesbroeck at the Yerkes Observatory in Williams Bay, Wisconsin, United States. The S-type asteroid was named after the discoverer's daughter, Micheline van Biesbroeck.
1047 Geisha, provisional designation 1924 TE, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 17 November 1924, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after the British musical The Geisha.
1193 Africa, provisional designation 1931 HB, is a stony Eunomian asteroid from the central region of the asteroid belt, approximately 12 kilometers in diameter. It was discovered by South African astronomer Cyril Jackson at Johannesburg Observatory on 24 April 1931. The asteroid was named for the African continent.
1588 Descamisada, provisional designation 1951 MH, is an Eos asteroid from the outer region of the asteroid belt, approximately 18 kilometers in diameter. It was discovered on 27 June 1951, by astronomer Miguel Itzigsohn at the La Plata Astronomical Observatory in La Plata, Argentina, and named in honor of Eva Perón.
3330 Gantrisch, provisional designation 1985 RU1, is a dark asteroid from the outer regions of the asteroid belt and the largest member of the Lixiaohua family, approximately 36 kilometers in diameter. It was discovered on 12 September 1985, by Swiss astronomer Thomas Schildknecht at Zimmerwald Observatory near Bern, Switzerland. It was named after the Gantrisch mountain.
1370 Hella, provisional designation 1935 QG, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 5.4 kilometers in diameter. It was discovered on 31 August 1935, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named for Helene Nowacki, an astronomer at the Astronomical Calculation Institute.
1755 Lorbach, provisional designation 1936 VD, is a stony Eoan asteroid from the outer region of the asteroid belt, approximately 25 kilometers in diameter.
1410 Margret, provisional designation 1937 AL, is an Eoan asteroid from the outer regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 8 January 1937, by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named after Margret Braun, wife of the Heidelberg astronomer Heinrich Vogt.
1217 Maximiliana, provisional designation 1932 EC, is a background asteroid from the inner regions of the asteroid belt, approximately 17 kilometers (11 mi) in diameter. It was discovered on 13 March 1932, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The asteroid was named in memory of Max Wolf, a German astronomer and discoverer of asteroids himself, who independently discovered this asteroid.
2905 Plaskett, provisional designation 1982 BZ2, is a stony Gefionian asteroid from the central regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 24 January 1982, by American astronomer Edward Bowell at the Anderson Mesa Station near Flagstaff, Arizona. The asteroid was named after Canadian astronomers John Stanley Plaskett and Harry Hemley Plaskett.
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.
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79912 Terrell (provisional designation 1999 CC3) is a dark Adeonian asteroid from the central regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 10 February 1999, by astronomers Walter Cooney and Ethan Kandler at the Highland Road Park Observatory, in Baton Rouge, Louisiana, United States. The asteroid was named after American astrophysicist Dirk Terrell.
1229 Tilia is a dark Themistian asteroid from the outermost regions of the asteroid belt, approximately 28 kilometers in diameter. It was discovered on 9 October 1931, by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany, and given the provisional designation 1931 TP1. The asteroid was named for the genus of trees, Tilia (lime tree, linden, basswood).
95179 Berkó is a Massalian asteroid from the inner regions of the asteroid belt, approximately 1.4 kilometers in diameter.
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.
1861 Komenský, provisional designation 1970 WB, is an Eoan asteroid from the outer region of the asteroid belt, estimated to measure approximately 15 kilometers in diameter. It was discovered on 24 November 1970, by Czech astronomer Luboš Kohoutek at the Bergedorf Observatory in Hamburg, Germany, and named after John Amos Comenius.