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Komet Arend-Roland

C/1956 R1 (Arend-Roland)
Odkritje
OdkriteljSylvain Arend,
Georges Roland
Datum odkritja8. november 1956
Oznake
Veliki komet iz leta 1957,
1957 III, 1956h, 1956 R1
Lastnosti tira
Epoha23. marec, 1957 (JD 2435920,5)
Prisončje0,316 a.e.
Izsrednost1,00017
Tirna dobanima
Naklon tira119,9°
Zadnje prisončje8. april, 1957
Naslednje prisončje-

Komet Arend-Roland ali Veliki komet iz leta 1957 ali C/1956 R1 je komet, ki sta ga 8. novembra 1956 na fotografskih ploščah odkrila belgijska astronoma Sylvain Arend (1902 – 1992) in Georges Roland (1922 – 1991) [1].

Lastnosti

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Tirnica kometa je bila hiperbolična [2] (izsrednost je večja od 1). Komet je bil najbolj svetel v letu 1957 v času potovanja skozi notranji del Osončja. Po prehodu prisončja je kazal protirep. V prisončju je bil 8. aprila 1957 na oddaljenosti 0,32 a.e. Njegova največja svetlost je dosegla magnitudo -1 [1]. Mimo Zemlje je letel na oddaljenosti 0,57 a.e. 21. aprila [1].

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Komet Arend-Roland
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