Astronomy:519 Sylvania

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519 Sylvania
519Sylvania (Lightcurve Inversion).png
A three-dimensional model of 519 Sylvania based on its light curve
Discovery
Discovered byRaymond Smith Dugan
Discovery siteHeidelberg
Discovery date20 October 1903
Designations
(519) Sylvania
Pronunciation/sɪlˈvniə/[1]
1903 MP
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc112.35 yr (41035 d)
|{{{apsis}}}|helion}}3.3071 astronomical unit|AU (494.74 Gm)
|{{{apsis}}}|helion}}2.2703 AU (339.63 Gm)
2.7887 AU (417.18 Gm)
Eccentricity0.18590
Orbital period4.66 yr (1,700.9 d)
Mean anomaly103.905°
Mean motion0° 12m 41.94s / day
Inclination11.021°
Longitude of ascending node44.746°
302.430°
Physical characteristics
Mean radius24.125±1.15 km
Rotation period17.962 h (0.7484 d)
Geometric albedo0.1676±0.017
S
Absolute magnitude (H)9.14


Sylvania (minor planet designation: 519 Sylvania) is a minor planet orbiting the Sun in the main belt. It was discovered on 20 October 1903 by American astronomer R. S. Dugan at the Heidelberg observatory. The name is Latin for forest lands.[3] 519 Sylvania is orbiting the Sun at a distance of 2.79 astronomical unit|AU with an eccentricity (ovalness) of 0.186 and a period of 4.66 yr. The orbital plane is inclined at an angle of 11.0° to the ecliptic. This S-type (stony) asteroid has an estimated diameter of 48 km and is revolving with a period of 17.962 h.[2]

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