261 Prymno

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261 Prymno
Orbita asteroida 261.png
Orbital diagram
Discovery
Discovered by C. H. F. Peters
Discovery date31 October 1886
Designations
(261) Prymno
Pronunciation /ˈprɪmn/
Named after
Prymno
A886 UA
Main belt
Adjectives Prymnoian /prɪmˈn.iən/
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 98.79 yr (36082 d)
Aphelion 2.54054  AU (380.059  Gm)
Perihelion 2.12336 AU (317.650 Gm)
2.33195 AU (348.855 Gm)
Eccentricity 0.089449
3.56 yr (1300.7 d)
Average orbital speed
19.51 km/s
35.7611°
0° 16m 36.386s / day
Inclination 3.63567°
96.6415°
65.9065°
Physical characteristics
Dimensions50.93±1.3  km
8.002  h (0.3334  d)
0.1141±0.006
B
9.44

    Prymno (minor planet designation: 261 Prymno) is a somewhat large Main belt asteroid. It is classified as a B-type asteroid and probably has a primitive composition not unlike common C-type carbonaceous asteroids.

    It was discovered by C. H. F. Peters on October 31, 1886, in Clinton, New York and was named after the Greek Oceanid Prymno.

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    References

    1. "261 Prymno". JPL Small-Body Database . NASA/Jet Propulsion Laboratory . Retrieved 11 May 2016.