Английская Википедия:547 Praxedis
Шаблон:Use dmy dates Шаблон:Infobox planet
Praxedis (minor planet designation: 547 Praxedis), provisional designation Шаблон:Mp, is a Postremian asteroid from the central regions of the asteroid belt, approximately 52 kilometers in diameter.
Description
The asteroid was discovered on 14 October 1904, by astronomer Paul Götz at the Heidelberg-Königstuhl State Observatory in southwest Germany.[1] 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 (Шаблон:Small).
Praxedis is a member of the Postrema family (Шаблон:Small),[2] a mid-sized central asteroid family of little more than 100 members.[3]Шаблон:Rp 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.[4]
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.[4] 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.[4]
References
External links
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- Dictionary of Minor Planet Names, Google books
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
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- Английская Википедия
- Postrema asteroids
- Discoveries by Paul Götz
- Named minor planets
- XD:-type asteroids (Tholen)
- Xk-type asteroids (SMASS)
- Astronomical objects discovered in 1904
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- Википедия
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