Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Shekaru goma daga 1963 zuwa kusan 1973, yawancin masanan taurari sun yarda da da'awar Peter van de Kamp cewa ya gano, ta hanyar amfani da astrometry, wani rikici a cikin motsi na Barnard's Star wanda ya dace da shi yana da ɗaya ko fiye da taurari masu kama da Jupiter. Van de Kamp ya kasance yana lura da tauraron daga 1938, yana ƙoƙari, tare da abokan aiki a Sproul Observatory a Kwalejin Swarthmore, don nemo ƙananan bambance-bambance na micrometer ɗaya a matsayinsa a kan faranti na hoto wanda ya dace da rikice-rikice na kewayon da zai nuna abokiyar duniyar; wannan ya ƙunshi mutane da yawa kamar goma masu matsakaicin sakamakon su wajen kallon faranti, don kauce wa kuskuren mutum na tsarin. Shawarar farko ta Van de Kamp ita ce duniyar da ke da kimanin 1.6 MJ a nesa da 4.4 AU a cikin wani ɗan gajeren yanayi, kuma waɗannan ma'aunin an inganta su a cikin takarda ta 1969. Daga baya a wannan shekarar, Van de Kamp ya ba da shawarar cewa akwai taurari biyu na 1.1 da 0.8 MJ.  Tambaya: Ta yaya taurari suka yi kama da sauran taurari?
Jupiter