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. Cite error: Invalid <ref> tag; no text was provided for refs named OED
  2. Cite error: Invalid <ref> tag; no text was provided for refs named BBCOUP
  3. Yeomans, Donald K. (July 13, 2006). "HORIZONS System". NASA JPL. http://ssd.jpl.nasa.gov/?horizons. 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". http://cseligman.com/text/sky/rotationvsday.htm. 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. http://nssdc.gsfc.nasa.gov/planetary/factsheet/uranusfact.html. 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. http://web.archive.org/20090420194536/home.comcast.net/~kpheider/MeanPlane.gif. Retrieved April 10, 2009.  (produced with Solex 10 written by Aldo Vitagliano; see also Invariable plane)
  7. Cite error: 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. http://solarsystem.nasa.gov/planets/profile.cfm?Object=Uranus&Display=Facts. Retrieved August 13, 2007. 
  9. Cite error: Invalid <ref> tag; no text was provided for refs named Jacobson1992
  10. Cite error: Invalid <ref> tag; no text was provided for refs named ephemeris
  11. Cite error: Invalid <ref> tag; no text was provided for refs named Podolak1995
  12. Cite error: Invalid <ref> tag; no text was provided for refs named Lunine1993
  13. Cite error: Invalid <ref> tag; no text was provided for refs named Lindal1987
  14. Cite error: 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.