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1 References  





2 External links  














215 Oenone






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215 Oenone
Orbital diagram
Discovery
Discovered byViktor Knorre
Discovery date7 April 1880
Designations

MPC designation

(215) Oenone
Pronunciation/ˈnn/[1]

Named after

Oenōnē

Alternative designations

A880 GA

Minor planet category

Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc110.31 yr (40,289 d)
Aphelion2.87 AU (428.78 Gm)
Perihelion2.67 AU (398.77 Gm)

Semi-major axis

2.77 AU (413.78 Gm)
Eccentricity0.036257

Orbital period (sidereal)

4.60 yr (1,680.2 d)

Average orbital speed

17.91 km/s

Mean anomaly

90.9597°

Mean motion

0° 12m 51.343s / day
Inclination1.68583°

Longitude of ascending node

25.0036°

Argument of perihelion

315.903°
Physical characteristics
Dimensions35.51±0.9 km

Synodic rotation period

27.937 h (1.1640 d)

Geometric albedo

0.2044±0.011

Spectral type

S

Absolute magnitude (H)

9.4

Oenone (minor planet designation: 215 Oenone) is a typical main belt asteroid. It was discovered by the Russian astronomer Viktor Knorre on April 7, 1880, in Germany, and was the second of his four asteroid discoveries. The asteroid is named after Oenone, a nymph in Greek mythology.[3]

This body is orbiting the Sun with a period of 4.60 years and a low ellipticity (ovalness) of 0.036. The orbital planeisinclined by 1.7° to the plane of the ecliptic. Light curve data gives a synodic rotation periodof27.93±0.01 h, during which it varies in brightness with an amplitude of 0.18±0.02 magnitudes.[4] The cross-section diameter is 36 km. It is classified as an S-type asteroid in the Tholen taxonomy, suggesting a silicaceous (stony) composition.[2]

A search of quasi-complanar asteroids has shown that 215 Oenone and 1851 ≡ 1950 VA can approach to within 600 km of each other, one of the closest known potential proximities of astronomical bodies.[5]

References

[edit]
  1. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  • ^ a b "215 Oenone". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Archived from the original on 20 September 2020. Retrieved 12 May 2016.
  • ^ Schmadel, Lutz D. (11 November 2013), Dictionary of Minor Planet Names, Berlin Heidelberg: Springer, p. 50, ISBN 9783662066157
  • ^ Pilcher, Frederick (July 2013), "Three Asteroids with Changing Lightcurves: 12 Victoria, 177 Irma, and 215 Oenone", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, 40 (3): 161–163, Bibcode:2013MPBu...40..161P
  • ^ Lazović, J.; Kuzmanoski, M. (1979), "Perturbing Effects of the Asteroid 215 Oenone on the Asteroid 1851 = 1950 VA During their Proximity" (PDF), Publications of the Department of Astronomy – Beograd, 9, retrieved 24 November 2020
  • [edit]


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  • Retrieved from "https://en.wikipedia.org/w/index.php?title=215_Oenone&oldid=1191812133"

    Categories: 
    Minor planet object articles (numbered)
    Background asteroids
    Discoveries by Viktor Knorre
    Named minor planets
    S-type asteroids (Tholen)
    Astronomical objects discovered in 1880
    Main-belt-asteroid stubs
    Hidden categories: 
    Articles with short description
    Short description matches Wikidata
    Use dmy dates from October 2019
    Articles with JPL SBDB identifiers
    Articles with MPC identifiers
    All stub articles
     



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