139 Juewa
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.
Ìkọ́kọ́wárí and designation | |
|---|---|
| Kíkọ́kọ́wárí látọwọ́ | James Craig Watson |
| Ọjọ́ ìkọ́kọ́wárí | 10 October 1874 |
Ìfúnlọ́rúkọ | |
| Minor planet category | Main belt |
Àwọn ìhùwà ìgbàyípo | |
| Àsìkò 31 July 2016 (JD 2457600.5) | |
| Aphelion | 3.26884 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 161.43±7.38 km |
| Àkójọ | 5.54±2.20×1018 kg |
| Iyeìdáméjì ìṣùpọ̀ | 2.51±1.05 g/cm3 |
| Equatorial surface gravity | 0.0438 m/s² |
| Equatorial escape velocity | 0.0828 km/s |
| Rotation period | 20.991 h (0.8746 d) |
| Geometric albedo | 0.0557±0.002 0.0444±0.0164 |
| Ìgbónásí | ~167 K |
| Spectral type | CP (Tholen) |
| Absolute magnitude (H) | 7.78, 7.924 |
Àwọn ìtọ́kasí
 | Àyọkà yìí tàbí apá rẹ̀ únfẹ́ àtúnṣe sí. Ẹ le fẹ̀ jù báyìí lọ tàbí kí ẹ ṣàtúnṣe rẹ̀ lọ́nà tí yíò mu kúnrẹ́rẹ́. Ẹ ran Wikipedia lọ́wọ́ láti fẹ̀ẹ́ jù báyìí lọ. |
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