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The universe is all worked up

Uranus

    

automatic translation

    

astronoo Mercury Mercury the first planet of the solar system in 57,9 million km of the sun is, its diameter is 4880 km. astronoo Venus Venus the second planet of the solar system in 108,2 million km of the sun is, its diameter is 13000 km. astronoo Earth Earth the third planet of the solar system in 149,6 million km of the sun is, its diameter is 12756 km. astronoo Mars Mars the fourth planet of the solar system in 227,9 million km of the sun is, its diameter is 6800 km. astronoo Jupiter Jupiter the fifth planet of the solar system in 778 million km of the sun is, its diameter is 143000 km. astronoo Saturn Saturn the sixth planet of the solar system in 1427 million km of the sun is, its diameter is 120500 km. astronoo Uranus Uranus the seventh planet of the solar system in 2870 million km of the sun is, its diameter is 51120 km.  astronoo Neptune Neptune the eighth planet of the solar system in 4496 million km of the sun is, its diameter is 49530 km. 
astronoo Moon Earth possess that a single natural satellite, the Moon which orbits in 160000 km of the earth.  astronoo satellites of Mars Mars possess 2 known natural satellites, Phobos and Deimos. They orbit near the planet, in some thousand kilometers of this one.  astronoo satellites of Jupiter Jupiter possess more than 60 known natural satellites, among which Ganymede, Io, Callisto, Europe and the others... astronoo satellites of Saturn Saturn possess 59 known natural satellites, of which Titan, Rhea, Iapetus, Dioné, Thetis, Enceladus, Mimas, Hyperion, Phoebe, Janus, Epimetheus, Prometheus, Pandora and the others... astronoo satellites of Uranus Uranus possess at least 27 known natural satellites, among which Titania, Oberon, Umbriel, Ariel... astronoo satellites of Neptune Neptune possess tens of known natural satellites, of which Triton, Proteus, Larissa, Galatea, Despina, Nereid, Thalassa, Naiad...

     

Uranus

    

    

Uranus is hardly visible in the bare eye on very clear night, it appears, even with powerful instruments as under the shape of a small greenish disk.
Uranus is the seventh planet of the solar system, a gaseous giant and the third in size.
It was discovered on March 13th, 1781 by William Herschel.
Its name comes from the god Uranus, Roman god of the sky, the equivalent of the Greek god Ouranos. It has an axis of rotation tilted to 98 ° (That of the Earth is 23,27 °, and that of the Jupiter of 3,22 °). Uranus is lying thus almost on its orbit.
Uranus is a gaseous huge planet, as Jupiter, Saturn and Neptune.
In theory, it would consist of a solid nucleus of silicates and of iron about 7500 km in diameter, surrounded with a coat consisted of clouds of molecular hydrogen, of helium, methane and ammonia on a 10 000 km thickness, then a superficial layer of hydrogen and liquid helium, thickens 7600 km which bottom gradually in the atmosphere.
Unlike Jupiter and Saturn, Uranus is not rather massive so that the hydrogen exists in the metal state around the nucleus.

 

uranus

 
Uranus  
semi major axis 2 870,99 millions de km
inclination of the axis 97,86°
mass 8,686x1025 kg
(14,5 times the earth)
equatorial diameter 51 118 km
polar diameter 49 946 km
discovered by William Herschel
circumference 17 620 000 000 km
volume 69,142 x 1012 km3
albedo 0,51
escape velocity 21,3 km/s
     

La 7ème planète

   

category : planets


    

Uranus is the 7th solar planet of the system and the 3rd biggest.
It is Friedrich Wilhelm Herschel who discovered it accidentally on March 13th, 1781 and he thought first of all of having to deal with a comet.
Uranus had already been observed previously but it was ignored and cataloged as simple star (the first observation recorded by Uranus dates 1690 when John Flamsteed cataloged it as the star 34 Tauri).
Having correctly determined the nature of the celestial body, Herschel called it the Georgian Planet in honor of King of England Georges III
The thrower, a rocket Soyuz 2.1B, unstuck at 3:23 pm (the hour Paris time) on December 27th, 2006 of his shooting range of the Baikonur cosmodrome.

 

Uranus showed irregularities in its orbit around the Sun that the law of the universal gravitation could not explain.
An eighth planet was needed to explain these irregularities.
A psychological bolt had jumped, the dimensions of the solar system doubled at one go. Most of the planets make their rotation on an almost perpendicular axis in the plan of the ecliptic but the axis of Uranus is almost parallel to this plan.
Uranus mainly consists of cliffs and ices, with only 15 % of hydrogen and a little helium, while Jupiter and Saturn almost completely consist of hydrogen.

 

The atmosphere of Uranus is constituted about 83 % of hydrogen, 15 % of helium and 2 % of methane.
The blue color of Uranus is the result of the absorption of the red light by the methane in the superior atmosphere.
Uranus possesses rings as other gas giants, overdrafts that in 1979.
They are very dark as those of Jupiter and consisted of relatively big particles, up to 10 meters in diameter besides fine dusts, as rings of Saturn.
There are 11 known rings, all very weak, the most glittering being the ring Epsilon.

     

Related subjects

   

category: planets


    

Mercury

 

Jupiter

  

Venus

 

Saturn

  

Terre

 

Uranus

  

Mars

 

Neptune

  
     

Les 27 satellites d'Uranus

   

category : planets

Satellite

Distance (km)

Diamètre (km)

Masse (kg)

Découvert par

Commentaire

Date

Titania

436 000

1578

3.49×1021

Herschel

Reine des Fées dans Le songe d'une nuit d'été de Shakespeare

1787

Obéron

583 000

1523

3.03×1021

Herschel

Roi des fées dans dans Le songe d'une nuit d'été de Shakespeare

1787

Umbriel

266 000

1170

1.27×1021

Lassel

Personnage de The Rape of the Lock (La boucle de cheveux volée)d'Alexander Pope

1851

Ariel

191 000

1158

1,35×1021

Lassel

Génie aérien dans la pièce la tempête de Shakespeare

1851

Miranda

130 000

472

6,6×1019

Gérard P.Kuiper

Fille du magicien Prospero dans la pièce la tempête de Shakespeare

1948

Sycorax

12 179 000

190

5,4×1018

Philip D.Nicholson

Mère du monstre Caliban dans la pièce la tempête de Shakespeare

1997

Puck

86 000

162

2,89×1018

Voyager 2

Esprit malfaisant dans la pièce de théâtre le Songe d'une nuit d'été de Shakespeare

1985

Portia

66 000

135

1,68×1018

Voyager 2

Riche héritière dans la pièce de théâtre le Marchand de Venise de Shakespeare

1986

Caliban

7 231 000

98

7,3×1017

Brett J. Gladman

Monstre dans la pièce la tempête de Shakespeare

1997

Juliette

64 000

93

5,57×1017

Voyager 2

Tragique héroïne de la pièce de théâtre Roméo et Juliette de Shakespeare

1986

Belinda

75 000

80

3,57×1017

Voyager 2

Héroïne de la Boucle volée d'Alexander Pope

1986

Cressida

62 000

80

3,43×1017

Voyager 2

Fille de Calchas dans Troilus et Cressida de Shakespeare

1986

Rosalinde

70 000

72

2,54×1017

Voyager 2

Fille du Duc proscrit dans la pièce de théâtre Comme il vous plaira de Shakespeare

1986

Desdemone

63 000

64

1,78×1017

Voyager 2

Epouse d'Othello dans la pièce de théâtre Othello de Shakespeare

1986

Bianca

59 000

51

9,3×1016

Voyager 2

Sœur de Katherine dans la pièce de théâtre la Mégère apprivoisée de Shakespeare

1986

Ophélia

54 000

42

5,4×1016

Voyager 2

Fille de Polonius dans la pièce de théâtre Hamlet de Shakespeare

1986

Cordelia

50 000

40

4,5×1016

Voyager 2

Fille du roi Lear dans la pièce de théâtre le Roi Lear de Shakespeare

1986

Prospero

16 256 000

30

2,1×1016

Matthew Holman

Sorcier, duc de Milan dans la pièce la tempête de Shakespeare

1999

Setebos

17 418 000

30

2,1×1016

John J.Kavelaars

Dieu vénéré par Caliban et Sycorax dans la pièce la tempête de Shakespeare

1999

Stephano

8 004 000

20

6×1015

Brett J. Gladman

Majordome alcoolique dans la pièce la tempête de Shakespeare

1999

Perdita

76 420

20

 

Erich Karkoschka

Personnage de la pièce Le conte d'hiver de Shakespeare

1999

Fransisco

4 276 000

12

 

Brett J. Gladman

Personnage de la pièce la tempête de Shakespeare

2003

Ferdinand

20 901 000

12

  

Personnage de la pièce la tempête de Shakespeare

2001

Margaret

14 345 000

11

 

Matthew Holman

Servante de Hero dans la pièce, Beaucoup de bruit pour rien de Shakespeare

2003

Cupidon

74 800

10

 

Mark Showalter

Personnage de la pièce Timon d'Athènes de Shakespeare

2003

Mab

97 734

10

 

Mark Showalter

Fée mentionnée dans la pièce de théâtre Roméo et Juliette de Shakespeare

2003

Triculo

8 504 000

10

 

Matthew Holman

Bouffon dans la pièce la tempête de Shakespeare

2001

 

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The universe is all worked up

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Astronomy - october 15th 2007