139 Juewa


139 Juewa
Ìkọ́kọ́wárí and designation
Kíkọ́kọ́wárí látọwọ́ James Craig Watson
Ọjọ́ ìkọ́kọ́wárí 10 October 1874
Ìfúnlọ́rúkọ
Minor planet
category
Main belt
Àwọn ìhùwà ìgbàyípo[1]
Àsìkò 31 July 2016 (JD 2457600.5)
Aphelion3.26884 AU (489.012 Gm)
Perihelion 2.29261 AU (342.970 Gm)
Semi-major axis 2.78073 AU (415.991 Gm)
Eccentricity 0.17553
Àsìkò ìgbàyípo 4.64 yr (1693.7 d)
Average orbital speed 17.72 km/s
Mean anomaly 60.2817°
Inclination 10.9127°
Longitude of ascending node 1.83417°
Argument of perihelion 165.566°
Àwọn ìhùwà àdánidá
Ẹ̀gbẹ̀ẹ̀gbẹ́ 156.60±2.8 km[1]
161.43±7.38 km[2]
Àkójọ 5.54±2.20×1018 kg[2]
Iyeìdáméjì ìṣùpọ̀ 2.51±1.05 g/cm3[2]
Equatorial surface gravity0.0438 m/s²
Equatorial escape velocity0.0828 km/s
Rotation period 20.991 h (0.8746 d)
Geometric albedo0.0557±0.002[1]
0.0444±0.0164[3]
Ìgbónásí ~167 K
Spectral typeCP (Tholen)[3]
Absolute magnitude (H) 7.78,[1] 7.924[3]

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.[4][5]

Àwọn ìtọ́kasí

  1. 1.0 1.1 1.2 1.3 Yeomans, Donald K., "139 Juewa", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016. 
  2. 2.0 2.1 2.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, Bibcode:2012P&SS...73...98C, arXiv:1203.4336Freely accessible, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  3. 3.0 3.1 3.2 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.
  4. Lutz D. Schmadel, Dictionary of Minor Planet Names, p. 28.
  5. "OCCULTATION OF UCAC2 17551271 BY 139 JUEWA". Retrieved 22 November 2012.