139 Juewa

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139 Juewa
Ìkọ́kọ́wárí and designation
Kíkọ́kọ́wárí látọwọ́ James Craig Watson
Ọjọ́ ìkọ́kọ́wárí 10 October 1874
Ìfúnlọ́rúkọ
Minor planet
category
Main belt
Àsìkò 31 July 2016 (JD 2457600.5)
Aphelion Àdàkọ:Convert/LonAonDbSoff
Perihelion 2.29261 AU (Àdàkọ:Convert/Gm)
Semi-major axis 2.78073 AU (Àdàkọ:Convert/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°
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 gravity 0.0438 m/s²
Equatorial escape velocity 0.0828 km/s
Rotation period Àdàkọ:Convert/h
Geometric albedo 0.0557±0.002[1]
0.0444±0.0164[3]
Ìgbónásí ~167 K
Spectral type CP (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[àtúnṣe | àtúnṣe àmìọ̀rọ̀]

  1. 1.0 1.1 1.2 1.3 Yeomans, Donald K., "139 Juewa", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=139, 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, arXiv:1203.4336, Bibcode 2012P&SS...73...98C, 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". http://occsec.wellington.net.nz/planet/2007/results/070926_139_Juewa_2U17551271_Rep.htm. Retrieved 22 November 2012.