Planets

Alliance
Empire
Neutral
Corellia
Coruscant
Endor
Mon Calamari
Sullust
Yavin IV
Bespin
Byss
Dathomir
Dagobah
Dantooine
Kessel
Nal Hutta
Nar Shaddaa
Ord Mantell
Tatooine
Note:  These are ever-changing, but I'm not gonna update 'em.
This is as of the end of the original trilogy, I guess.
Keep up with the novels and comic books.

Check out this map of the galaxy.

Rebel Alliance/New Republic

Corellia

Type: Terrestrial
Temp: Temperate
Atmosphere: Type I (breathable)
Hydrosphere: Moderate
Gravity: Standard
Terrain: Urban, hills
Length of Day: 25 Standard Hours
Length of Year: 329 Local Days
Sapient Races: Humans and various aliens
Starport: 1 Imperial Class, 3 Stellar, 4 Standard
Population: 16.5 billion
Function: Trade, Administrative/Government
Government: New Republic Governor-General
Tech Level: Space
Major Exports: Foodstuffs, medicinal goods
Major Imports: High technology
System: Corellian
Star: Corelli (yellow)

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Coruscant
Type
: Terrestrial
Temp: Temperate
Atmosphere: Type I
Hydrosphere: Moderate
Gravity: Standard
Terrain: Urban, mountains, plains, icecaps
Length of Day: 24 Standard Hours
Length of Year: 368 Local Days
Sapient Races: Human
Starport: Stellar
Population: 1 billion
Function: New republic capital
Government: Representative democracy
Tech Level: Space
Major Exports: None
Major Imports: Foodstuffs, medicinal goods, luxury items

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Mon Calamari
Type
: Terrestrial Ocean Planet
Temp: Temperate
Atmosphere: Type I
Hydrosphere: Saturated
Gravity: Standard
Terrain: Ocean, reefs, floating island cities, underwater cities
Length of Day: 21 Standard Hours
Length of Year: 398 Local Days
Sapient Races: Mon Calamari, Quarren
Starport: Imperial
Population: 11 billion Mon Calamari, 16.5 billion Quarren
Function: Homeworld
Government: Representative council
Tech Level: Space
Major Exports: High tech, warships, weaponry
Major Imports: Foodstuffs, medicine, high tech, low tech

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Empire

Bespin

Type: Gas Giant
Temp: Temperate (in life zone)
Atmosphere: Type I in life zone
Hydrosphere: Moist
Gravity: Standard
Terrain: Gas giant
Length of Day: 12 Standard Hours
Length of Year: 14 Local Days
Sapient Races: Humans, Ugnaughts
Starport: Standard
Population: 8 million
Function: Tibanna gas mining, gambling resort
Government: Guild
Tech Level: Space
Major Exports: Tibanna gas, cloud cars
Major Imports: Foodstuffs, mid tech, high tech

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Byss

Type: Dark Side-Enshrouded Terrestrial
Temp:Temperate
Atmosphere: Type I
Hydrosphere: Moderate
Gravity: Standard
Terrain: Urban, plateau reserves, canyons
Length of Day: 31 Standard Hours
Length of Year: 207 Local Days
apient Races: Humans
Starport: Imperial Class
Population: 19.7 billion
Function: Imperial capital
Government: Dark side theocracy
Tech Level: Space
Major Exports: None
Major Imports: Foodstuffs, high tech weaponry
Note: Byss eventually got blown up.

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Dathomir

Type: Terrestrial
Temp: Temperate
Atmosphere: Type I (breathable)
Hydrosphere: Moderate
Gravity: Slightly less than standard
Terrain: Desert, forest, jungle, mountains
Length of Day: 24 Standard Hours
Length of Year: 491 Local Days
Sapient Races: Humans, Rancors
Starport: Limited Services (Imperial Prison)
Population: 5,200
Function: Imperial Prison
Government: Tribal (New Republic allied)
Tech Level: Stone, Space (Imperial Prison)
Major Exports: None
Major Imports: None

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Neutral

Dagobah

Type: Swamp
Temp: Tropical
Atmosphere: Type I
Hydrosphere: Moist
Gravity: Standard
Terrain: Swamps, forests, caves
Length of Day: Unknown
Length of Year: Unknown
Sapient Races: Unknown
Starport: None
Population: Unknown
Function: Worthless abandoned swamp planet
Government: None
Tech Level: None
Major Exports: None
Major Imports: None
System: Dagobah

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Dantooine

Type: Terrestrial
Temp: Temperate
Atmosphere: Type I
Hydrosphere: Dry
Gravity: Standard
Terrain: Savanna, mountain, ocean
Length of Day: 25 Standard Hours
Length of Year: 378 Local Days
Sapient Races: Dantari
Starport: Landing field
Population: 334,000
Function: Abandoned colony world
Government: Tribal
Tech Level: Stone
Major Exports: None
Major Imports: None

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Kessel

Type: Terrestrial
Temp: Cool
Atmosphere: Type III (breath mask required)
Hydrosphere: Dry
Gravity: Light
Terrain: Barren, mountains
Length of Day: 26 Standard Hours
Length of Year: 322 Local Days
Sapient Races: Varied
Starport: Standard class
Population: 122,000
Function: Spice mining
Government: Dictatorship
Tech Level: Space
Major Exports: Glitterstim spice
Major Imports: High tech, foodstuffs, luxury items

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Nal Hutta

Type: Terrestrial
Temp: Temperate
Atmosphere: Type I
Hydrosphere: Moist
Gravity: Standard
Terrain: Urban, mountainous rain forests
Length of Day: 87 Standard Hours
Length of Year: 413 Local Days
Sapient Races: Humans, Hutts, various aliens
Starport: 1 Imperal class
Population: 3 billion Hutts, 4 billion of other speicies
Function: Homeworld, trade, crime
Government: Clan council
Tech Level: space
Major Exports: Tourism, contraband goods
Major Imports: Foodstuffs, high tech, luxury goods

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Nar Shaddaa

Type: Terrestrial
Temp: Temperature
Atmosphere: Type I
Hydrosphere: Moist
Gravity: Standard
Terrain: Urban
Length of Day: 87 Standard Hours
Length of Year: 413 Local Days
Sapient Races: Evocil, Hutts, many other aliens
Starport: Stellar
Population: 72.1 to 94.7 billion
Function: Trade
Government: Organized crime
Tech Level: Space (upper levels), varies by sectors and part of the planet
Major Exports: Contraband, mid tech, high tech, weapons, spice, slaves
Major Imports: Contraband, mid tech, high tech, weapons, spice, slaves

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Ord Mantell

Type: Terrestrial
Temp: Temperate
Atmosphere: Type I (breathable)
Hydrosphere: Moist
Gravity: Standard
Terrain: Plains, jungles
Length of Day: 26 Standard Hours
Length of Year: 334 Local Days
Sapient Races: Humans, Trandoshans, various aliens
Starport: Limited Services
Population: 4 billion
Function: Trade, entertainment, gambling
Government: Republic governor
Tech Level: Space
Major Exports: None
Major Imports: None

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