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Uranus: Verskil tussen weergawes

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Lyn 4:
| symbol = [[Lêer:Uranus symbol.svg|25px|Uranus se sterrekundige simbool]]
| image = [[Lêer:Uranus2.jpg|240px|Die planeet Uranus]]
| caption = Uranus, soos waargeneem deur die Voyager 2-wenteltuig .
| discovery = yes
| discoverer = [[William Herschel]]
| discovered = [[13 Maart]] [[1781]]
| orbit_ref =<ref name="horizons">
{{cite web
Lyn 16:
| title = HORIZONS System
| publisher = NASA JPL
| accessdate = August 8, Augustus 2007 }}</ref>
| epoch = [[J2000]]
| aphelion = 3,004,419,704&nbsp;km<br />20.083&nbsp;305&nbsp;26&nbsp;AE
| perihelion = 2,748,938,461&nbsp;km<br />18.375&nbsp;518&nbsp;63&nbsp;AUAE
| semimajor = 2,876,679,082&nbsp;km<br />19.229&nbsp;411&nbsp;95&nbsp;AE
| eccentricity = 0.044&nbsp;405&nbsp;586
Lyn 28:
| title = Rotation Period and Day Length
| url = http://cseligman.com/text/sky/rotationvsday.htm
| accessdate = August 13, Augustus 2009
}}
</ref>
| synodic_period = 369.66&nbsp;dae<ref name="fact">{{cite web | url = http://nssdc.gsfc.nasa.gov/planetary/factsheet/uranusfact.html|title = Uranus Fact Sheet|publisher = NASA|last = Williams|first = Dr. David R.|accessdate = Augustus 10, Augustus 2007|date = Januarie 31, Januarie 2005}}</ref>
| avg_speed = 6.81&nbsp;km/s<ref name="fact" />
| inclination = 0.772&nbsp;556° tot [[Ekliptika]]<br />6.48° tot die Son se [[ewenaar]]<br />1.02° tot onveranderbare vlakte<ref name="meanplane">{{cite web | date = 2009-04-03 | title = The MeanPlane (Invariable plane) of the Solar System passing through the barycenter | url = http://home.surewest.net/kheider/astro/MeanPlane.gif | accessdate = 2009-04-10 }} (produsier met [http://chemistry.unina.it/~alvitagl/solex/ Solex 10] geskryf van Aldo Vitagliano)</ref>
| asc_node = 73.989&nbsp;821°
| arg_peri = 96.541&nbsp;318°
Lyn 40:
| minorplanet = yes
| physical_characteristics = yes
| flattening = 0.022&nbsp;9&nbsp;±&nbsp;0.000&nbsp;8<ref name="Seidelmann Archinal A'hearn et al. 2007">{{cite doi | 10.1007/s10569-007-9072-y }}</ref>
| equatorial_radius = 25,559&nbsp;±&nbsp;4&nbsp;km <br /> 4.007&nbsp;Earths<ref name="Seidelmann Archinal A'hearn et al. 2007" />Aardes
| polar_radius = 24,973&nbsp;±&nbsp;20&nbsp;km <br /> 3.929&nbsp;Earths<ref name="Seidelmann Archinal A'hearn et al. 2007" />Aardes
| circumference = 159,354.1&nbsp;km<ref name="nasafact" />
| surface_area = 8.115&nbsp;6{{e|9}}&nbsp;km<sup>2</sup><ref name="nasafact">{{cite web|url = http://solarsystem.nasa.gov/planets/profile.cfm?Object=Uranus&Display=Facts|title = NASA: Solar System Exploration: Planets: Uranus: Facts & Figures|publisher = NASA|last = Munsell|first = Kirk|accessdate = Augustus 13, Augustus 2007|date = Mei 14, Mei 2007}}</ref><br />15.91&nbsp;Aardes
| volume = 6.833{{e|13}}&nbsp;km<sup>3</sup><ref name="fact" /><br />63.086&nbsp;Aardes
| mass = {{nowrap|(8.6810 ± 0.0013){{e|25}} kg}}<br />14.536&nbsp;Aardes<ref name=Jacobson1992>{{cite journal|last=Jacobson|first=R.A.|coauthors=Campbell, J.K.; Taylor, A.H.; Synnott, S.P.|title=The masses of Uranus and its major satellites from Voyager tracking data and Earth-based Uranian satellite data|journal=The Astronomical Journal|volume=103|issue=6|pages=2068–2078|year=1992|doi=10.1086/116211| bibcode=1992AJ....103.2068J}}</ref><br />
Lyn 51:
| surface_grav = 8.69&nbsp;m/s<sup>2</sup><ref name="fact" /><br />0.886&nbsp;g
| escape_velocity = 21.3&nbsp;km/s<ref name="fact" />
| sidereal_day = −0.718&nbsp;33 dae<br />{{nowrap|17 h 14 min 24 s}}<ref name="Seidelmann Archinal A'hearn et al. 2007" />
| rot_velocity = 2.59&nbsp;km/s<br />9,320&nbsp;km/h
| axial_tilt = 97.77°<ref name="Seidelmann Archinal A'hearn et al. 2007" />
| right_asc_north_pole = {{nowrap|17 h 9 min 15 s}}<br />257.311°<ref name="Seidelmann Archinal A'hearn et al. 2007" />
| declination = −15.175°<ref name="Seidelmann Archinal A'hearn et al. 2007" />
| albedo = 0.300 (geometries)<br />0.51 (Bond)<ref name="fact" />
| magnitude = 5.9<ref name=ephemeris>{{cite web|title=Twelve Year Planetary Ephemeris: 1995 - 2006|author=Espenak, Fred |work=NASA|url=http://sunearth.gsfc.nasa.gov/eclipse/TYPE/TYPE.html|year=2005|accessdate=Junie 14, Junie 2007}}</ref> tot 5.32<ref name="fact" />
| angular_size = 3.3"–4.1"<ref name="fact" />
| temperatures = yes
| temp_name1 = 1 bar level<ref name="Podolak Weizman et al. 1995">{{cite doi | 10.1016/0032-0633(95)00061-5 }}</ref>
| min_temp_1 =
| mean_temp_1 = 76&nbsp;[[Kelvin|K]]<ref name="fact" />
| max_temp_1 =
| temp_name2 = 0.1 bar<ref name="Lunine 1993">{{cite doi | 10.1146/annurev.aa.31.090193.001245 }}</ref>
| min_temp_2 = 49&nbsp;K
| mean_temp_2 = 53&nbsp;K
Lyn 74:
| atmosphere_composition = 83&nbsp;±&nbsp;3% [[Waterstof]]<br />
15&nbsp;±&nbsp;3% [[Helium]]<br />
2.3% [[MethanMetaan]]<br />
0.009% <br /> (0.007–0.015%) [[Waterstofdeuteried]]<br /><ref name=Feuchtgruber1999>{{cite journal|last=Feuchtgruber|first=H.|coauthors=Lellouch, E.; B. Bezard; et al.|title=Detection of HD in the atmospheres of Uranus and Neptune: a new determination of the D/H ratio|year=1999|journal=Astronomy and Astrophysics|volume=341|pages=L17–L21|bibcode=1999A&A...341L..17F|last2=Lellouch|last3=Bézard|last4=Encrenaz|last5=De Graauw|last6=Davis}}</ref>
}}
Lyn 93:
Die oorspronklike naam wat Herschel aan die planeet gegee het was ''Georgium Sidus'' (George se ster), vernoem ter vir Koning George III. Hy het dit egter verander na die ''Georgian Planet''. Die naam is selfs so laat as 1850 gebruik, maar was egter nie aanvaarbaar buite Britanje nie. [[Joseph Jérôme Lefrançais de Lalande|Lalande]] het die naam ''Herscel'' voorgestel in 1784. Na heelwat alternatiewe name voorgestel is, het [[Johann Elert Bode|Bode]], redigeer van die ''Berliner Astronomisches Jahrbuch'', die naam ''Uranus'' begin gebruik.
 
In [[Sjinees]], [[Japannees]], [[Koreaans]] en [[VietnameesViëtnamees]] beteken die naam van die planeet letterlik "Hemel koning ster" (天王星).<ref>{{cite web
|url=http://www.eternalsailormoon.org/help.html#myth
|title=Sailormoon Terms and Information
Lyn 100:
 
== Natuurlike satelliete ==
 
Uranus het 27 natuurlike satelliete. Die name is gekies as karakters uit [[Shakespeare]] en [[Alexander Pope]]. Die vyf grootstes is [[Miranda (maan)|Miranda]], [[Ariel (maan)|Ariel]], [[Umbriel (maan)|Umbriel]], [[Titania (maan)|Titania]] en [[Oberon (maan)|Oberon]].
[[Lêer:Uranian system schematic-en.svg|thumb|left|220px|Uranus se natuurlike satelliete]]
 
{| class="wikitable"
|- style="background:#efefef;"
Line 126 ⟶ 125:
 
== Sigbaarheid ==
Uranus se helderheid is tussen +5.5 en +6.0, wat beteken dat dit op 'n goeie aand gesien kan word met die blote oog as 'n ligte ster. Dit kan maklik gevind word met verkykers. Met 'n amateur teleskoop gee die planeet 'n ligte blou skynsel en twee van die mane ([[Titania (maan)|Titania]] en [[Oberon (maan)|Oberon]]) kan van tyd tot tyd gesien word.
 
== Verwysings ==
Ontsluit van "https://af.wikipedia.org/wiki/Uranus"