139 Julewa jẹ́ ìgbàjá ìsọ̀gbé oòrùn kékeré dúdú tí ó sì fẹ̀. Ó jẹ́ àkọ́kọ́ ìsọ̀gbé oòrùn kékeré tí wọ́n máa ṣàwárí rẹ̀ ní orílẹ̀ èdè China. Àlejò Onímọ̀ ìwòràwọ̀, James Craig Watson ọmọ Amẹ́ríkà ní o ṣàwárí rẹ̀ ní Beijing ní Ọjọ́ kẹwá Oṣù kẹ́wá Ọdún 1874. Yeomans, Donald K., "139 Juewa", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.  Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, Bibcode:2012P&SS...73...98C, arXiv:1203.4336 , doi:10.1016/j.pss.2012.03.009.  See Table 1. Pravec, P.; et al. (May 2012), "Absolute Magnitudes of Asteroids and a Revision of Asteroid Albedo Estimates from WISE Thermal Observations", Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16–20, 2012 in Niigata, Japan (1667), Bibcode:2012LPICo1667.6089P.  See Table 4. Lutz D. Schmadel, Dictionary of Minor Planet Names, p. 28.