astro.wikisort.org - Asteroid
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.
| Discovery [1][2] | |
|---|---|
| Discovered by | P. Götz |
| Discovery site | Heidelberg Obs. |
| Discovery date | 14 October 1904 |
| Designations | |
MPC designation | (547) Praxedis |
| Pronunciation | /prækˈsiːdɪs/ (Πραξηδίς) |
Named after | Novel character [3] (Joseph Victor von Scheffel) |
Alternative designations | 1904 PB |
Minor planet category | 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 |
Semi-major axis | 2.7770 AU |
| Eccentricity | 0.2353 |
Orbital period (sidereal) | 4.63 yr (1,690 days) |
Mean anomaly | 161.79° |
Mean motion | 0° 12m 46.8s / day |
| Inclination | 16.899° |
Longitude of ascending node | 193.21° |
Argument of perihelion | 195.64° |
| Physical characteristics | |
| Dimensions | 52.462±1.716 km[1] |
Synodic rotation period | 9.105 h (0.3794 d)[1] |
Geometric albedo | 0.101±0.009[1] |
Spectral type | Tholen = XD: [1] SMASS = Xk [1] B–V = 0.761[1] U–B = 0.254[1] |
Absolute magnitude (H) | 9.52[1] |
Description
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 (1857). 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]
References
- "JPL Small-Body Database Browser: 547 Praxedis (1904 PB)" (2017-07-05 last obs.). Jet Propulsion Laboratory. Retrieved 19 October 2017.
- "547 Praxedis (1904 PB)". Minor Planet Center. Retrieved 19 October 2017.
- Schmadel, Lutz D. (2007). "(547) Praxedis". Dictionary of Minor Planet Names – (547) Praxedis. Springer Berlin Heidelberg. p. 57. doi:10.1007/978-3-540-29925-7_548. ISBN 978-3-540-00238-3.
- "Asteroid 547 Praxedis – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 24 October 2019.
- 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.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 547 Praxedis at AstDyS-2, Asteroids—Dynamic Site
- 547 Praxedis at the JPL Small-Body Database
На других языках
[de] (547) Praxedis
(547) Praxedis ist ein Asteroid des Hauptgürtels, der am 14. Oktober 1904 vom deutschen Astronomen Paul Götz in Heidelberg entdeckt wurde.- [en] 547 Praxedis
[es] (547) Praxedis
(547) Praxedis es un asteroide perteneciente al cinturón de asteroides descubierto el 14 de octubre de 1904 por Paul Götz desde el observatorio de Heidelberg-Königstuhl, Alemania. Está nombrado por Praxedis, un personaje de la novela Ekkehard del escritor alemán Victor von Scheffel (1826-1886).[2][ru] (547) Пракседида
(547) Пракседида (лат. Praxedis) — астероид главного пояса, который принадлежит к спектральному классу X. Он был открыт 14 октября 1904 года немецким астрономом Паулем Гёцем в Обсерватории Хайдельберг-Кёнигштуль и назван в честь христианской святой Пракседы; Пракседа также входит в число главных персонажей романа «Эккехард» (1857) немецкого писателя Йозефа Виктора фон Шеффеля и написанной на его сюжет одноимённой оперы (1878) Иоганна Йозефа Аберта.Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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