Group Q The Gas Giant Planets

definition
unlike terrestrail planets the gas giants are made from gaseous composition, such as hydrogen and helium. they do have some rocky material, although it is mostly in the planets core. the four gas giants are neptune,uranus,jupiter and saturn. jupiter and saturn are mostly made up from hydrogen and helium, whith heavier elements making up between 3 and 13 percent off mass. they are thought to consist of an outer layer of molecular hydrogen surrounding a layer of liquid metalic hydrogen, with a molten rocky core. the outermost layer of their hydrogen atmosphere is charicterized of many layers of visible clouds that are mostly composed of water and amnonia. the layer of metalic hydrogen makes up the bulk of the planet, and is reffered to as "metalic" because of the very large pressure turns hydrogen into an electrical conducter. the gas giants core are thought to consist of heavier elements at such high temperatures and pressures that their properties are poorly understood.

gas giant size

name diameter distance from sun orbit period
jupiter 139,822 km 778,340,821 km 11.9 years
saturn 116,464 km 1,426,666,422 km 29.5 years
uranus 50,724 km 2,870,658,186 km 84.0 years
neptune 49,244 km 4,498,396,441 km 164.8 years
planetarygasgiants.jpg

facts about gas giants
- the gas and ice giants take longer to orbit the sun because of how far away they are.
- the densities of gas giants are much less than the densities of the rocky, terrestrials of the solar system world.
- gas giants aren't all made of gas.
- uranus has an icy layer over its solid rock core and covered with a gaseous atomosphere.
- the metalic hydrogen in jupiter and saturn conduct electricity.
- all gas giants are in the solar system are outer planets.
- jupiter is the biggest planet in the solar system.

neptune
Equatorial Diameter: 49,528 km
Polar Diameter: 48,682 km
Mass: 1.02 × 10^26 kg (17 Earths)
Moons: 14 (Triton)
Rings: 5
Orbit Distance: 4,498,396,441 km (30.10 AU)
Orbit Period: 60,190 days (164.8 years)
Surface Temperature: -201 °C
Discovery Date: September 23rd 1846
Discovered By: Urbain Le Verrier & Johann Galle

uranus
Equatorial Diameter: 51,118 km
Polar Diameter: 49,946 km
Mass: 8.68 × 10^25 kg (15 Earths)
Moons: 27 (Miranda, Titania, Ariel, Umbriel & Oberon)
Rings: 13
Orbit Distance: 2,870,658,186 km (19.22 AU)
Orbit Period: 30,687 days (84.0 years)
Surface Temperature: -197 °C
Discovery Date: March 13th 1781
Discovered By: William Herschel

saturn
Equatorial Diameter: 120,536 km
Polar Diameter: 108,728 km
Mass: 5.68 × 10^26 kg (95 Earths)
Moons: 62 (Titan, Enceladus, Iapetus & Rhea)
Rings: 30+ (7 Groups)
Orbit Distance: 1,426,666,422 km (9.58 AU)
Orbit Period: 10,756 days (29.5 years)
Surface Temperature: -139 °C
First Record: 8th century BC
Recorded By: Assyrians

jupiter
Equatorial Diameter: 142,984 km
Polar Diameter: 133,709 km
Mass: 1.90 × 10^27 kg (318 Earths)
Moons: 67 (Io, Europa, Ganymede & Callisto)
Rings: 4
Orbit Distance: 778,340,821 km (5.20 AU)
Orbit Period: 4,333 days (11.9 years)
Surface Temperature: -108°C
First Record: 7th or 8th century BC
Recorded By: Babylonian astronomers

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