🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505.4

Radius: 10.7

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.43 AU - 0.65 AU

Year: 274 Days

Day: 7.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,532,997 km

• M1: 133,142 km (0.113 R)
• M2: 493,673 km (0.116 R)
• M3: 848,519 km (0.104 R)
• M4: 1,231,340 km (0.082 R)
• M5: 1,606,232 km (0.098 R)
• M6: 2,065,498 km (0.075 R)
• M7: 2,822,762 km (0.098 R)
• M8: 3,261,234 km (0.101 R)
• M9: 3,733,963 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.2

Radius: 12.8

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.73 AU - 1.15 AU

Year: 629 Days

Day: 11.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,532,997 km

• M1: 159,172 km (0.063 R)
• M2: 558,748 km (0.09 R)
• M3: 1,023,100 km (0.075 R)
• M4: 1,489,097 km (0.113 R)
• M5: 1,898,547 km (0.059 R)
• M6: 2,608,089 km (0.106 R)
• M7: 3,025,767 km (0.106 R)
• M8: 3,488,323 km (0.114 R)
• M9: 3,998,153 km (0.09 R)
• M10: 4,839,790 km (0.113 R)
• M11: 5,681,877 km (0.118 R)
• M12: 6,432,110 km (0.053 R)
• M13: 6,961,088 km (0.075 R)
• M14: 7,634,129 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.2

Radius: 10.5

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.29 AU - 1.81 AU

Year: 1332 Days

Day: 5.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,532,997 km

• M1: 133,292 km (0.048 R)
• M2: 554,111 km (0.07 R)
• M3: 1,094,009 km (0.076 R)
• M4: 1,593,965 km (0.112 R)
• M5: 3,470,671 km (0.059 R)
• M6: 3,944,746 km (0.107 R)
• M7: 4,447,545 km (0.103 R)
• M8: 5,194,636 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.6

Radius: 14.9

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.86 AU - 3.86 AU

Year: 4251 Days

Day: 10.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,532,997 km

• M1: 185,352 km (0.034 R)
• M2: 983,756 km (0.062 R)
• M3: 1,504,955 km (0.035 R)
• M4: 1,977,833 km (0.034 R)
• M5: 3,047,309 km (0.057 R)
• M6: 3,839,280 km (0.079 R)
• M7: 7,229,616 km (0.073 R)
• M8: 7,959,804 km (0.119 R)
• M9: 8,642,718 km (0.108 R)
• M10: 9,130,556 km (0.105 R)
• M11: 11,307,505 km (0.09 R)
• M12: 13,249,584 km (0.063 R)
• M13: 15,690,423 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.4

Radius: 10.6

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 4.98 AU - 5.18 AU

Year: 7903 Days

Day: 7.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,532,997 km

• M1: 132,544 km (0.07 R)
• M2: 1,323,193 km (0.113 R)
• M3: 1,814,622 km (0.035 R)
• M4: 2,157,800 km (0.091 R)
• M5: 3,029,357 km (0.044 R)
• M6: 3,441,798 km (0.117 R)
• M7: 4,184,552 km (0.116 R)
• M8: 5,771,037 km (0.075 R)
• M9: 7,531,355 km (0.09 R)
• M10: 8,499,702 km (0.119 R)
• M11: 10,242,517 km (0.107 R)
• M12: 12,480,352 km (0.113 R)
• M13: 14,772,491 km (0.114 R)
• M14: 15,386,739 km (0.101 R)
• M15: 16,231,967 km (0.118 R)
• M16: 21,250,378 km (0.094 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 909.9

Radius: 4.6

Gravity: 43 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 5.93 AU - 6.65 AU

Year: 10889 Days

Day: 17.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 64,532,997 km

• M1: 57,146 km (0.067 R)
• M2: 537,206 km (0.098 R)
• M3: 1,293,274 km (0.055 R)
• M4: 1,531,583 km (0.112 R)
• M5: 2,925,237 km (0.112 R)
• M6: 3,361,913 km (0.06 R)
• M7: 5,878,299 km (0.051 R)
• M8: 8,257,802 km (0.076 R)
• M9: 8,684,456 km (0.079 R)
• M10: 9,946,314 km (0.046 R)
• M11: 15,146,186 km (0.104 R)
• M12: 16,220,149 km (0.114 R)
• M13: 16,738,356 km (0.025 R)
• M14: 19,997,047 km (0.034 R)
• M15: 29,445,947 km (0.063 R)
• M16: 30,887,472 km (0.109 R)
• M17: 33,432,880 km (0.095 R)
• M18: 41,488,725 km (0.117 R)
• M19: 42,735,773 km (0.099 R)
• M20: 44,150,520 km (0.097 R)
• M21: 46,774,916 km (0.103 R)
• M22: 54,442,555 km (0.076 R)
• M23: 55,103,029 km (0.071 R)
• M24: 55,601,938 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 18.3

Radius: 7.1

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 5.96 AU - 9.9 AU

Year: 15414 Days

Day: 17.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 153.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,532,997 km

• M1: 88,263 km (0.059 R)
• M2: 1,288,187 km (0.108 R)
• M3: 5,535,121 km (0.119 R)
• M4: 6,099,105 km (0.042 R)
• M5: 11,409,082 km (0.103 R)
• M6: 17,191,339 km (0.098 R)
• M7: 17,891,905 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 461

Radius: 4

Gravity: 28.81 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 7.27 AU - 10.99 AU

Year: 19042 Days

Day: 22.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 157.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 64,532,997 km

• M1: 70,909 km (0.108 R)
• M2: 334,202 km (0.119 R)
• M3: 520,601 km (0.058 R)
• M4: 690,544 km (0.068 R)
• M5: 1,319,004 km (0.113 R)
• M6: 1,542,504 km (0.064 R)
• M7: 1,915,601 km (0.079 R)
• M8: 4,625,417 km (0.074 R)
• M9: 5,105,476 km (0.071 R)
• M10: 6,204,272 km (0.102 R)
• M11: 7,918,215 km (0.085 R)
• M12: 9,434,091 km (0.115 R)
• M13: 9,868,822 km (0.102 R)
• M14: 10,603,497 km (0.113 R)
• M15: 12,308,614 km (0.078 R)
• M16: 16,173,624 km (0.107 R)
• M17: 18,757,479 km (0.077 R)
• M18: 19,618,115 km (0.12 R)
• M19: 30,415,641 km (0.11 R)
• M20: 31,123,538 km (0.092 R)
• M21: 37,053,897 km (0.085 R)
• M22: 39,371,616 km (0.048 R)
• M23: 46,278,849 km (0.041 R)
• M24: 53,097,371 km (0.076 R)
• M25: 53,779,687 km (0.05 R)
• M26: 56,567,293 km (0.083 R)
• M27: 58,357,531 km (0.063 R)
• M28: 60,000,714 km (0.12 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 324 - 13,965 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit