Facts on Saturn
Saturn is the sixth planet from the sun and the second largest in the solar system,after Jupiter.It is a gas planet with a average radius about nine times that of earth.Saturn is the root of the Engl
ish word ``Saturday. Saturn's beautiful rings,visible with a expensive telescope,to make it a favorite in the night.
1,514.50 million km (10.1238 AU)
1,352.55 million km (9.0412 AU)
1,433.53 million km (9.5826 AU)
Average orbital speed
9.68 km/s (6.01 mi/s)
58,232 km (36,184 mi)[a]
- 60,268 km (37,449 mi)[a]
- 9.449 Earths
- 54,364 km (33,780 mi)[a]
- 8.552 Earths
- 8.2713×1014 km3(1.9844×1014 cu mi)[a]
- 763.59 Earths
- 5.6834×1026 kg (1.2530×1027 lb)
- 95.159 Earths
0.210 I/MR2 estimate
35.5 km/s (22.1 mi/s)[a]
Sidereal rotation period
(10 hr 33 min)
Equatorial rotation velocity
9.87 km/s (6.13 mi/s; 35,500 km/h)[a]
26.73° (to orbit)
North pole right ascension
40.589°; 2h 42m 21s
North pole declination
+1.47 to −0.24
14.5″ to 20.1″ (excludes rings)
59.5 km (37.0 mi)
hydrogen deuteride (HD)
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius about nine times that of Earth. It has only one-eighth the average density of Earth, but with its larger volume Saturn is over 95 times more massive. Saturn is named after the Roman god of agriculture; its astronomical symbol (♄) represents the god's sickle.
Saturn's interior is probably composed of a core of iron–nickel and rock (silicon and oxygen compounds). This core is surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium, and finally a gaseous outer layer. Saturn has a pale yellow hue due to ammonia crystals in its upper atmosphere. Electrical current within the metallic hydrogen layer is thought to give rise to Saturn's planetary magnetic field, which is weaker than Earth's, but has a magnetic moment 580 times that of Earth due to Saturn's larger size. Saturn's magnetic field strength is around one-twentieth of Jupiter's. The outer atmosphere is generally bland and lacking in contrast, although long-lived features can appear. Wind speeds on Saturn can reach 1,800 km/h (1,100 mph; 500 m/s), higher than on Jupiter, but not as high as those on Neptune.
The planet's most famous feature is its prominent ring system that is composed mostly of ice particles, with a smaller amount of rocky debris and dust. At least 62 moons are known to orbit Saturn, of which 53 are officially named. This does not include the hundreds of moonlets in the rings. Titan, Saturn's largest moon, and the second-largest in the Solar System, is larger than the planet Mercury, although less massive, and is the only moon in the Solar System to have a substantial atmosphere..
Venus is the second planet from the sun and is the second brightest object in the knight sky after the moon.Named after the roman goddess of love and beauty,Venus is the second largest terrestrial planet and is sometimes referred to as the earths sister planet due to their similar size and mass. The SURFACE of the planet is obscured by an opaque layer of clouds made up of sulphuric acid. The diameter of Venus is 12,104km. The temperature on Venus is 462 degrees Celsius.The orbit distance is 108,209,475km. Venus has no moons. To orbit Venus it takes 225 days was first recorded 17th century BC.