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261 Prymno

261 Prymno
Orbita asteroida 261 Prymno
Otkriće
OtkrioC. H. F. Peters
Datum otkrića31. oktobar 1886.
Oznake
MPC nazivi(261) Prymno
Kategorija malih planetaasteroidni pojas
Osobine putanje [1]
Epoha: 31. juli 2016.
(JD2457600,5)
Afel380.059.000 km
2,54054 AJ
Perihel317.650.000 km
2,12336 AJ
Srednji poluprečnik putanje348.855.000 km
2,33195 AJ
Ekscentricitet0,089449
Orbitalni period1300,7 dana
3,56 godina
Prosječna orbitalna brzina19,51 km/s
Srednja anomalija35,7611°
Inklinacija3,63567° ka ekliptici
Dužina ulaznog čvora96,6415°
Argument perihela65,9065°
Fizikalne osobine
Dimenzije50,93±1,3 km
Masanepoznata
Period rotacije8,002 h
Albedo0,1141 ± 0,006
Spektralna klasaB
Apsolutna magnituda (H)9,44

261 Prymno je srednje velik asteroid iz Glavnog asteroidnog pojasa. Klasifikovan je kao asteroid B-tipa i vjerovatno je jednostavnog sastava, za razliku od uobičajenih asteroida C-tipa, koji su većinom bogati karbonatnim materijalima.

Otkrio ga je Christian Heinrich Friedrich Peters 31. oktobra 1886. godine u Clintonu, a imenovan je po okeanidi Prymno iz grčke mitologije.

Reference

  1. ^ "261 Prymno". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Pristupljeno 11. 5. 2016.

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