Movatterモバイル変換

[0]ホーム
URL:

Jump to content
WikipediaThe Free Encyclopedia
Search

134 Sophrosyne

From Wikipedia, the free encyclopedia
Main-belt asteroid

134 Sophrosyne
A 3D lightcurve model of 134 Sophrosyne.
Discovery[1]
Discovered byKarl Theodor Robert Luther
Discovery siteDüsseldorf, North Rhine-Westphalia, Germany
Discovery date27 September 1873
Designations
(134) Sophrosyne
Pronunciation/soʊˈfrɒsɪniː/[2]
Named after
sophrosyne
A873 SA[3][a]
Main belt
Orbital characteristics[3]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc138.60 yr (50625 d)
Aphelion2.86280 AU (428.269 Gm)
Perihelion2.26311 AU (338.556 Gm)
2.56295 AU (383.412 Gm)
Eccentricity0.11699
4.10yr (1498.7d)
18.54 km/s
229.885°
0° 14m 24.76s / day
Inclination11.6018°
345.986°
84.7156°
Earth MOID1.31034 AU (196.024 Gm)
Jupiter MOID2.42537 AU (362.830 Gm)
TJupiter3.396
Physical characteristics
108[3]
112.188 km[4]
Mass(1.267 ± 0.575/0.398)×1018 kg[5]
1.713 ± 0.778/0.538 g/cm3[5]
0.029 m/s2
Equatorialescape velocity
0.056 km/s
17.190 h (0.7163 d)[6]
0.0364±0.001[3]
0.0436 ± 0.0122[4]
Temperature~174K
C (Tholen)[4]
9.04,[3] 8.770[4]

134 Sophrosyne is a largemain-beltasteroid that was discovered by German astronomerRobert Luther on 27 September 1873, and was named after the concept ofsophrosyne,Plato's term for 'moderation'. Classified as aC-type asteroid, it has an exceedingly dark surface and most probably a primitivecarbonaceous composition.[citation needed]

Anoccultation of a star by 134 Sophrosyne was observed 24 November 1980, in the United States. Timing information from this event allowed a diameter estimate of 110 km to be derived.[7]Photometric observations of the asteroid in 2015 produced alightcurve indicating arotation period of17.190±0.001 h with a variationamplitude of0.28±0.01 in magnitude. This provided a good match to the only previous determination in 1989.[6]

Notes

[edit]
  1. ^The MPC notates Sophrosyne's retroactive new-style designation as 1873 SA.[1]

References

[edit]
  1. ^ab"(134) Sophrosyne = 1873 SA".Minor Planet Center. Retrieved6 November 2025.
  2. ^Noah Webster (1884)A Practical Dictionary of the English Language
  3. ^abcdeYeomans, Donald K.,"134 Sophrosyne",JPL Small-Body Database Browser,NASA Jet Propulsion Laboratory, retrieved12 May 2016.
  4. ^abcdPravec, P.; et al. (May 2012), "Absolute Magnitudes of Asteroids and a Revision of Asteroid Albedo Estimates from WISE Thermal Observations",Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16–20, 2012 in Niigata, Japan, no. 1667,Bibcode:2012LPICo1667.6089P.
  5. ^abFienga, A.; Avdellidou, C.; Hanuš, J. (February 2020)."Asteroid masses obtained with INPOP planetary ephemerides".Monthly Notices of the Royal Astronomical Society.492 (1).doi:10.1093/mnras/stz3407.
  6. ^abPilcher, Frederick (October 2015), "Rotation Period Determination for 134 Sophrosyne, 521 Brixia and 873 Mechthild",The Minor Planet Bulletin,42 (4):280–281,Bibcode:2015MPBu...42..280P.
  7. ^Taylor, G. E., "Progress in accurate determinations of diameters of minor planets",Asteroids, comets, meteors; Proceedings of the Meeting, Uppsala, Sweden, June 20–22, 1983, pp. 107–109,Bibcode:1983acm..proc..107T.

External links

[edit]
Minor planets
Asteroid
Distant minor planet
Comets
Other
Authority control databasesEdit this at Wikidata


Stub icon

This article about a C-type asteroid native to theasteroid belt is astub. You can help Wikipedia byexpanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=134_Sophrosyne&oldid=1320697172"
Categories:
Hidden categories:
[8]ページ先頭
©2009-2025 Movatter.jp