Úránù

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Úránù - Uranus  Astronomical symbol of Uranus
Uranus as seen by Voyager 2
Uranus presented a nearly featureless disk to Voyager 2
Ìkọ́kọ́wárí
Kíkọ́kọ́wárí látọwọ́ William Herschel
Ọjọ́ ìkọ́kọ́wárí March 13, 1781
Ìfúnlọ́rúkọ
Ìpolongo Gbígbọ́i /ˈjʊərənəs/ or Gbígbọ́i /jʊˈrnəs/[1][2]
Alápèjúwe Uranian
Àsìkò J2000
Aphelion 3,004,419,704 km
20.083 305 26 AU
Perihelion 2,748,938,461 km
18.375 518 63 AU
Semi-major axis 2,876,679,082 km
19.229 411 95 AU
Eccentricity 0.044 405 586
Àsìkò ìgbàyípo 30,799.095 days
84.323 326 yr
42,718 Uranus solar days[4]
Synodic period 369.66 days[5]
Average orbital speed 6.81 km/s[5]
Mean anomaly 142.955 717°
Inclination 0.772 556° to Ecliptic
6.48° to Sun's equator
1.02° to Invariable plane[6]
Longitude of ascending node 73.989 821°
Argument of perihelion 96.541 318°
Satellites 27
Àwọn ìhùwà àdánidá
Ìfẹ̀kiri alágedeméjì 25,559 ± 4 km
4.007 Earths[7][c]
Ìfẹ̀kiri olóòpó 24,973 ± 20 km
3.929 Earths[7][c]
Flattening 0.022 9 ± 0.000 8[b]
Circumference 156,909.98 kmÀdàkọ:Citation needed
Ààlà ojúde 8.115 6 × 109 km2[8][c]
15.91 Earths
Ìpọ̀sí 6.833 × 1013 km3[5][c]
63.086 Earths
Àkójọ (8.6810 ± 0.0013) × 1025 kg
14.536 Earths[9]
GM=5 793 939 ± 13 km3/s2
Iyeìdáméjì ìṣùpọ̀ 1.27 g/cm3[5][c]
Equatorial surface gravity 8.69 m/s2[5][c]
0.886 g
Escape velocity 21.3 km/s[5][c]
Sidereal rotation
period
0.718 33 day
17 h 14 min 24 s[7]
Equatorial rotation velocity 2.59 km/s
9,320 km/h
Axial tilt 97.77°[7]
North pole right ascension 17 h 9 min 15 s
257.311°[7]
North pole declination –15.175°[7]
Albedo 0.300 (Bond)
0.51 (geom.)[5]
Ìgbónásí ojúde
   bar level[11]
   0.1 bar
(tropopause)[12]
min mean max
76 K
49 K 53 K 57 K
Apparent magnitude 5.9[10] to 5.32[5]
Angular diameter 3.3"–4.1"[5]
Afẹ́fẹ́àyíká[12][13][14][d]
Ìga òṣùwọ̀n 27.7 km[5]
Ìkósínú (Below 1.3 bar)
83 ± 3% Hydrogen (H2)
15 ± 3% Helium
2.3% Methane
0.009%
(0.007–0.015%)
Hydrogen deuteride (HD)[15]
Ices:
Ammonia
water
ammonium hydrosulfide (NH4SH)
methane (CH4)

Úránù ni planeti keje si Orun.


Itokasi[àtúnṣe | àtúnṣe àmìọ̀rọ̀]

  1. Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named OED
  2. Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named BBCOUP
  3. Yeomans, Donald K. (July 13, 2006). "HORIZONS System". NASA JPL. Retrieved August 8, 2007.  – At the site, go to the "web interface" then select "Ephemeris Type: ELEMENTS", "Target Body: Uranus Barycenter" and "Center: Sun".
  4. Seligman, Courtney. "Rotation Period and Day Length". Retrieved August 13, 2009. 
  5. 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 Williams, Dr. David R. (January 31, 2005). "Uranus Fact Sheet". NASA. Retrieved August 10, 2007. 
  6. "The MeanPlane (Invariable plane) of the Solar System passing through the barycenter". April 3, 2009. Archived from the original on April 20, 2009. Retrieved April 10, 2009.  (produced with Solex 10 written by Aldo Vitagliano; see also Invariable plane)
  7. 7.0 7.1 7.2 7.3 7.4 7.5 Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named Seidelmann2007
  8. Munsell, Kirk (May 14, 2007). "NASA: Solar System Exploration: Planets: Uranus: Facts & Figures". NASA. Retrieved August 13, 2007. 
  9. Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named Jacobson1992
  10. Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named ephemeris
  11. Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named Podolak1995
  12. 12.0 12.1 Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named Lunine1993
  13. Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named Lindal1987
  14. Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named Conrath1987
  15. Feuchtgruber, H.; Lellouch, E.; B. Bezard; et al. (1999). "Detection of HD in the atmospheres of Uranus and Neptune: a new determination of the D/H ratio". Astronomy and Astrophysics 341: L17–L21. Bibcode 1999A&A...341L..17F.