Uranus

Uranus Astronomical symbol of Uranus
Uranus2.jpg
Uranus, seen by Voyager 2
Discovery
Discovered byWilliam Herschel
Discovery dateMarch 13, 1781
Names
AdjectiveUranian
Orbit [2][a]
Reference date J2000
Longest distance from the Sun3 004 419 704 km
20.083 305 26 AU
Shortest distance from the Sun2 748 938 461 km
18.375 518 63 AU
Longest distance from the center of its orbital path
("semi-major axis")
2 876 679 082 km
19.229 411 95 AU
How long it takes to complete an orbit30 799.095 days
84.323 326 yr
How long an orbit seems to take
(from the central body)
369.66 days[1]
Average speed6.81 km/s[1]
Mean anomaly142.955 717°
Angle above the reference plane
("inclination")
0.772 556°
6.48° to Sun's equator
Natural things which orbit it27
Size and other qualities
Average radius25,362±7 km[3]
Surface area8.115 6×109 km²[4][c]
15.91 Earths
Volume6.833×1013 km³[1][c]
63.086 Earths
Mass(8.6810 ± 0.0013)×1025 kg
14.536 Earths[5]
GM=5 793 939 ± 13 km³/s²
Average density1.29 g/cm³[1][c]
Surface gravity8.69 m/s²[1][c]
0.886 g
Escape velocity21.3 km/s[1]
Turning speed2.59 km/s
9,320 km/h
Angle at which it turns
(in relation to its orbit)
97.77°[6]
Angle above the celestial equator
("declination")
−15.175°[6]
How much light it reflects0.300 (bond)
0.51 (geom.)[1]
Surface temp.Min.Avg.Max.
bar level[8]76 K
0.1 bar
(tropopause)[9]
49 K53 K57 K
Seeming brightness
("apparent magnitude")
5.9[7] to 5.32[1]
Atmosphere [9][11][12][d]
Scale height27.7 km[1]
Make-up(Below 1.3 bar)

Elements:
83 ± 3% hydrogen (H2)
15 ± 3% helium
2.3% methane
0.009% hydrogen deuteride (HD)[10]

Ices:
ammonia
water
ammonium hydrosulfide (NH4SH)
methane (CH4)

Uranus is the seventh planet from the Sun in the Solar System. It is a gas giant. It is the third largest planet in the solar system. The planet is made of ice, gases and liquid metal. Its atmosphere contains hydrogen, helium and methane. The temperature on Uranus is −197 degrees C (79 K) near the top of its atmosphere, but its small solid core (about 55% the mass of Earth) is probably about 5,000K. The planet is tilted on its axis so much that it is sideways. It has five big moons, many small ones, and a small system of 13 planetary rings.

The distance between Uranus and the Sun is about 2.8 billion km. Uranus completes its orbit around the Sun in 84 earth years. It completes a spin around itself in 17 hours and 14 minutes. This means there are about 43,000 Uranian days in one Uranian year.[13]

Uranus was discovered in 1781.[14] This planet can be seen with the naked eye under perfect conditions. John Flamsteed saw it decades earlier but mistook it for a star (34 Tauri).

Uranus is named after the Greek god Uranus, who was a god of sky.

Moons

Uranus has 27 known moons. They are named for characters from the works of Shakespeare and Alexander Pope.[15][16] The five biggest moons are Miranda, Ariel, Umbriel, Titania and Oberon. Many moons have yet to be discovered.

Other Languages
Afrikaans: Uranus
Alemannisch: Uranus (Planet)
አማርኛ: ኡራኑስ
Ænglisc: Uranus
العربية: أورانوس
aragonés: Urano (planeta)
armãneashti: Uranus
অসমীয়া: ইউৰেনাচ
asturianu: Uranu (planeta)
Avañe'ẽ: Uráno
azərbaycanca: Uran (planet)
تۆرکجه: اورانوس
Bân-lâm-gú: Thian-ông-chheⁿ
башҡортса: Уран (планета)
беларуская: Уран (планета)
беларуская (тарашкевіца)‎: Уран
भोजपुरी: यूरेनस ग्रह
български: Уран (планета)
Boarisch: Uranus (Planet)
bosanski: Uran
čeština: Uran (planeta)
davvisámegiella: Uranus
Diné bizaad: Yoowéinis
डोटेली: अरुणग्रह
emiliàn e rumagnòl: Uràn
English: Uranus
español: Urano (planeta)
Esperanto: Urano (planedo)
estremeñu: Uranu (praneta)
euskara: Urano
فارسی: اورانوس
Fiji Hindi: Arungrah
føroyskt: Uranus
Frysk: Uranus
Gaelg: Uraanus
galego: Urano
贛語: 天王星
ગુજરાતી: યુરેનસ (ગ્રહ)
客家語/Hak-kâ-ngî: Thiên-vòng-sên
한국어: 천왕성
Hawaiʻi: Hele‘ekela
हिन्दी: अरुण (ग्रह)
hrvatski: Uran
Ido: Urano
Ilokano: Urano
Bahasa Indonesia: Uranus
interlingua: Urano
ᐃᓄᒃᑎᑐᑦ/inuktitut: ᐅᕌᓄᔅ
isiZulu: UYurenasi
עברית: אורנוס
Basa Jawa: Uranus
Kabɩyɛ: Uranisi
ಕನ್ನಡ: ಯುರೇನಸ್
Kapampangan: Uranus
ქართული: ურანი
kaszëbsczi: Ùran
kernowek: Ouran (planet)
Kiswahili: Uranus
Kongo: Uranus
Kreyòl ayisyen: Iranis
kurdî: Ûranûs
Кыргызча: Уран (планета)
Lëtzebuergesch: Uranus (Planéit)
lietuvių: Uranas (planeta)
Lingua Franca Nova: Urano
Livvinkarjala: Uranus
la .lojban.: uranos
lumbaart: Urano (pianeta)
magyar: Uránusz
मैथिली: अरुण ग्रह
македонски: Уран (планета)
Malagasy: Uranus
മലയാളം: യുറാനസ്
მარგალური: ურანი (პლანეტა)
مصرى: اورانوس
مازِرونی: اورانوس
Bahasa Melayu: Uranus
Mìng-dĕ̤ng-ngṳ̄: Tiĕng-uòng-sĭng
Mirandés: Ourano
မြန်မာဘာသာ: ယူရေးနပ်စ်ဂြိုဟ်
Nederlands: Uranus (planeet)
Nedersaksies: Uranus (planeet)
नेपाली: अरुणग्रह
日本語: 天王星
Napulitano: Urano
нохчийн: Уран
Nordfriisk: Uranus
norsk: Uranus
norsk nynorsk: Planeten Uranus
ଓଡ଼ିଆ: ଇଉରେନ୍ସେ
oʻzbekcha/ўзбекча: Uran (sayyora)
پنجابی: یورینس
پښتو: اورانوس
Patois: Yuurienos
ភាសាខ្មែរ: ភពអ៊ុយរ៉ានុស
Piemontèis: Uran (pianeta)
Tok Pisin: Yurenes (planet)
Plattdüütsch: Uranus (Planet)
polski: Uran
português: Urano (planeta)
Qaraqalpaqsha: Uran (planeta)
română: Uranus
Romani: Rahor
rumantsch: Uranus (planet)
русиньскый: Уран (планета)
саха тыла: Ураан (планета)
संस्कृतम्: युरेनस्-ग्रहः
sardu: Uranu
Scots: Uranus
Seeltersk: Uranus
Sesotho: Yuranese
sicilianu: Uranu (pianeta)
සිංහල: යු‍රේනස්
سنڌي: يورينس
slovenčina: Urán (planéta)
slovenščina: Uran (planet)
ślůnski: Ůrůn
Soomaaliga: Uraano
کوردی: ئورانوس
српски / srpski: Уран
srpskohrvatski / српскохрватски: Uran (planeta)
Basa Sunda: Uranus
suomi: Uranus
svenska: Uranus
Tagalog: Urano
தமிழ்: யுரேனசு
татарча/tatarça: Уран (планета)
తెలుగు: యురేనస్
Türkçe: Uranüs
Türkmençe: Uran (planeta)
тыва дыл: Уран
українська: Уран (планета)
اردو: یورینس
ئۇيغۇرچە / Uyghurche: ئۇران (پلانىت)
vepsän kel’: Uran (planet)
Tiếng Việt: Sao Thiên Vương
Volapük: Uranud
文言: 天王星
West-Vlams: Uranus
Winaray: Urano
Wolof: Uraanus
吴语: 天王星
ייִדיש: אוראנוס
Yorùbá: Úránù
粵語: 天王星
Zazaki: Uranus
žemaitėška: Orans
中文: 天王星