🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.5

Radius: 10.5

Gravity: 9.06 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.56 AU - 0.64 AU

Year: 321 Days

Day: 12.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,410,716 km

• M1: 130,599 km (0.04 R)
• M2: 483,800 km (0.081 R)
• M3: 870,809 km (0.085 R)
• M4: 1,241,962 km (0.114 R)
• M5: 1,642,734 km (0.068 R)
• M6: 2,039,617 km (0.098 R)
• M7: 2,662,842 km (0.058 R)
• M8: 3,083,960 km (0.058 R)
• M9: 3,609,497 km (0.084 R)
• M10: 4,383,816 km (0.112 R)
• M11: 4,914,290 km (0.089 R)
• M12: 5,359,643 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.2

Radius: 14.3

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.5 AU - 0.7 AU

Year: 321 Days

Day: 11.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 98.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 58,410,716 km

• M1: 177,872 km (0.054 R)
• M2: 630,405 km (0.094 R)
• M3: 1,620,893 km (0.11 R)
• M4: 2,541,069 km (0.063 R)
• M5: 3,730,971 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.4

Radius: 12.7

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.14 AU - 1.42 AU

Year: 1000 Days

Day: 10.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,410,716 km

• M1: 157,975 km (0.115 R)
• M2: 559,646 km (0.114 R)
• M3: 970,890 km (0.101 R)
• M4: 1,413,700 km (0.105 R)
• M5: 2,057,120 km (0.036 R)
• M6: 2,532,393 km (0.104 R)
• M7: 3,155,169 km (0.094 R)
• M8: 4,530,572 km (0.103 R)
• M9: 5,416,191 km (0.093 R)
• M10: 6,313,180 km (0.035 R)
• M11: 7,000,283 km (0.056 R)
• M12: 7,969,976 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.1

Radius: 8.5

Gravity: 12.73 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.26 AU - 1.42 AU

Year: 1071 Days

Day: 11.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,410,716 km

• M1: 105,915 km (0.066 R)
• M2: 415,284 km (0.087 R)
• M3: 709,244 km (0.083 R)
• M4: 1,045,390 km (0.087 R)
• M5: 1,388,418 km (0.091 R)
• M6: 2,104,543 km (0.077 R)
• M7: 2,388,031 km (0.099 R)
• M8: 3,189,576 km (0.091 R)
• M9: 4,159,718 km (0.101 R)
• M10: 4,535,658 km (0.054 R)
• M11: 4,953,634 km (0.065 R)
• M12: 5,232,934 km (0.097 R)
• M13: 6,022,062 km (0.105 R)
• M14: 6,317,518 km (0.102 R)
• M15: 6,937,452 km (0.105 R)
• M16: 7,313,092 km (0.032 R)
• M17: 7,888,745 km (0.069 R)
• M18: 8,270,668 km (0.099 R)
• M19: 8,636,135 km (0.078 R)
• M20: 10,335,567 km (0.119 R)
• M21: 11,298,230 km (0.12 R)
• M22: 11,783,824 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166

Radius: 9.6

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.63 AU - 1.79 AU

Year: 1543 Days

Day: 13.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,410,716 km

• M1: 119,529 km (0.12 R)
• M2: 756,666 km (0.054 R)
• M3: 1,074,861 km (0.091 R)
• M4: 1,648,718 km (0.112 R)
• M5: 1,987,857 km (0.064 R)
• M6: 2,624,246 km (0.086 R)
• M7: 4,020,742 km (0.096 R)
• M8: 4,428,396 km (0.102 R)
• M9: 4,794,761 km (0.112 R)
• M10: 5,199,274 km (0.107 R)
• M11: 5,683,971 km (0.119 R)
• M12: 7,574,739 km (0.075 R)
• M13: 8,198,412 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.9

Radius: 12.5

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.45 AU - 3.43 AU

Year: 3480 Days

Day: 9.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,410,716 km

• M1: 155,432 km (0.081 R)
• M2: 593,156 km (0.109 R)
• M3: 1,043,894 km (0.093 R)
• M4: 1,500,616 km (0.079 R)
• M5: 2,834,730 km (0.117 R)
• M6: 3,532,754 km (0.107 R)
• M7: 4,027,474 km (0.078 R)
• M8: 6,123,340 km (0.075 R)
• M9: 7,234,553 km (0.108 R)
• M10: 7,673,174 km (0.077 R)
• M11: 8,571,958 km (0.12 R)
• M12: 9,063,686 km (0.114 R)
• M13: 10,578,813 km (0.073 R)
• M14: 11,455,457 km (0.117 R)
• M15: 14,932,111 km (0.106 R)
• M16: 15,645,394 km (0.117 R)
• M17: 16,281,933 km (0.079 R)
• M18: 17,502,352 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.1

Radius: 8

Gravity: 12.1 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.8 AU - 5.66 AU

Year: 7101 Days

Day: 12.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 58,410,716 km

• M1: 99,483 km (0.066 R)
• M2: 588,069 km (0.067 R)
• M3: 1,350,270 km (0.113 R)
• M4: 1,887,925 km (0.111 R)
• M5: 2,257,432 km (0.049 R)
• M6: 2,617,364 km (0.056 R)
• M7: 2,994,501 km (0.061 R)
• M8: 3,907,646 km (0.044 R)
• M9: 4,214,920 km (0.042 R)
• M10: 5,608,873 km (0.11 R)
• M11: 8,449,138 km (0.116 R)
• M12: 10,686,524 km (0.086 R)
• M13: 12,839,985 km (0.112 R)
• M14: 13,695,386 km (0.088 R)
• M15: 17,090,958 km (0.099 R)
• M16: 18,837,663 km (0.098 R)
• M17: 19,568,598 km (0.055 R)
• M18: 20,546,968 km (0.074 R)
• M19: 21,087,017 km (0.095 R)
• M20: 23,509,455 km (0.102 R)
• M21: 24,185,488 km (0.113 R)
• M22: 24,701,002 km (0.091 R)
• M23: 26,381,884 km (0.111 R)
• M24: 26,654,152 km (0.107 R)
• M25: 26,928,215 km (0.103 R)
• M26: 27,481,877 km (0.111 R)
• M27: 27,855,273 km (0.093 R)
• M28: 31,471,353 km (0.114 R)
• M29: 33,763,491 km (0.098 R)
• M30: 37,635,683 km (0.099 R)
• M31: 38,327,872 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402.2

Radius: 4.6

Gravity: 19.01 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 4.71 AU - 7.37 AU

Year: 10246 Days

Day: 17.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 58,410,716 km

• M1: 57,296 km (0.096 R)
• M2: 203,154 km (0.066 R)
• M3: 648,956 km (0.078 R)
• M4: 951,442 km (0.119 R)
• M5: 1,534,575 km (0.096 R)
• M6: 2,205,372 km (0.112 R)
• M7: 3,206,481 km (0.083 R)
• M8: 3,574,791 km (0.114 R)
• M9: 3,945,345 km (0.059 R)
• M10: 4,126,657 km (0.026 R)
• M11: 4,313,655 km (0.105 R)
• M12: 4,791,321 km (0.064 R)
• M13: 5,027,984 km (0.077 R)
• M14: 7,641,160 km (0.083 R)
• M15: 8,296,698 km (0.045 R)
• M16: 10,586,593 km (0.094 R)
• M17: 12,809,766 km (0.108 R)
• M18: 16,698,862 km (0.075 R)
• M19: 17,869,166 km (0.036 R)
• M20: 18,873,118 km (0.118 R)
• M21: 19,463,281 km (0.07 R)
• M22: 21,466,696 km (0.067 R)
• M23: 22,682,927 km (0.09 R)
• M24: 22,931,558 km (0.088 R)
• M25: 24,635,777 km (0.049 R)
• M26: 29,952,635 km (0.094 R)
• M27: 31,366,335 km (0.074 R)
• M28: 33,676,874 km (0.064 R)
• M29: 37,466,936 km (0.064 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 150.2

Radius: 5.5

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 5.9 AU - 6.48 AU

Year: 10630 Days

Day: 16.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,410,716 km

• M1: 69,114 km (0.114 R)
• M2: 366,964 km (0.061 R)
• M3: 1,109,119 km (0.057 R)
• M4: 3,432,074 km (0.116 R)
• M5: 5,093,209 km (0.101 R)
• M6: 6,363,893 km (0.053 R)
• M7: 9,062,340 km (0.026 R)
• M8: 10,910,472 km (0.105 R)
• M9: 13,202,311 km (0.048 R)
• M10: 16,031,805 km (0.079 R)
• M11: 16,569,909 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 298.7

Radius: 7.2

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 8.68 AU - 10.42 AU

Year: 20371 Days

Day: 17.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 58,410,716 km

• M1: 90,656 km (0.118 R)
• M2: 556,055 km (0.109 R)
• M3: 836,850 km (0.119 R)
• M4: 2,147,477 km (0.081 R)
• M5: 2,743,176 km (0.101 R)
• M6: 3,366,102 km (0.098 R)
• M7: 3,602,616 km (0.063 R)
• M8: 4,694,232 km (0.033 R)
• M9: 4,990,136 km (0.108 R)
• M10: 6,459,038 km (0.05 R)
• M11: 10,497,133 km (0.059 R)
• M12: 10,890,276 km (0.084 R)
• M13: 15,739,192 km (0.103 R)
• M14: 16,403,556 km (0.036 R)
• M15: 16,856,688 km (0.111 R)
• M16: 19,331,934 km (0.057 R)
• M17: 20,352,042 km (0.116 R)
• M18: 20,699,857 km (0.067 R)
• M19: 21,857,745 km (0.113 R)
• M20: 22,406,619 km (0.106 R)
• M21: 23,341,457 km (0.113 R)
• M22: 26,199,823 km (0.116 R)
• M23: 27,342,302 km (0.116 R)
• M24: 27,765,963 km (0.097 R)
• M25: 30,626,873 km (0.057 R)
• M26: 32,011,252 km (0.046 R)
• M27: 32,363,704 km (0.083 R)
• M28: 47,608,475 km (0.11 R)
• M29: 49,934,872 km (0.106 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 210 - 18,363 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit