🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.56 AU - 0.7 AU

Year: 323 Days

Day: 42.7 Hours

Environment

Temp: -122 °C

Axial Tilt: 6.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,501,937 km

• M1: 187,895 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463

Radius: 14.2

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.69 AU - 1.09 AU

Year: 542 Days

Day: 13.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,501,937 km

• M1: 176,525 km (0.114 R)
• M2: 654,790 km (0.062 R)
• M3: 1,123,480 km (0.115 R)
• M4: 1,618,350 km (0.112 R)
• M5: 2,106,338 km (0.039 R)
• M6: 2,556,328 km (0.1 R)
• M7: 3,006,020 km (0.113 R)
• M8: 3,693,123 km (0.054 R)
• M9: 4,148,947 km (0.071 R)
• M10: 4,820,791 km (0.106 R)
• M11: 5,973,144 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.3

Radius: 8.9

Gravity: 10.84 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.2 AU - 1.96 AU

Year: 1282 Days

Day: 8.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,501,937 km

• M1: 116,238 km (0.065 R)
• M2: 455,526 km (0.037 R)
• M3: 877,691 km (0.061 R)
• M4: 1,161,179 km (0.066 R)
• M5: 1,615,657 km (0.116 R)
• M6: 1,932,206 km (0.046 R)
• M7: 2,374,567 km (0.028 R)
• M8: 3,291,901 km (0.054 R)
• M9: 3,822,824 km (0.101 R)
• M10: 4,893,496 km (0.09 R)
• M11: 5,347,974 km (0.074 R)
• M12: 5,898,494 km (0.094 R)
• M13: 6,175,998 km (0.087 R)
• M14: 6,832,135 km (0.066 R)
• M15: 7,588,053 km (0.093 R)
• M16: 8,869,658 km (0.1 R)
• M17: 9,672,998 km (0.095 R)
• M18: 9,994,634 km (0.081 R)
• M19: 10,490,401 km (0.11 R)
• M20: 11,531,004 km (0.1 R)
• M21: 11,892,732 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.7

Radius: 13.7

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.66 AU - 2.14 AU

Year: 1691 Days

Day: 5.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,501,937 km

• M1: 170,392 km (0.048 R)
• M2: 610,958 km (0.107 R)
• M3: 1,938,489 km (0.063 R)
• M4: 2,444,130 km (0.055 R)
• M5: 3,023,971 km (0.106 R)
• M6: 4,319,639 km (0.026 R)
• M7: 5,254,924 km (0.116 R)
• M8: 6,228,807 km (0.026 R)
• M9: 6,747,163 km (0.05 R)
• M10: 7,448,628 km (0.062 R)
• M11: 11,500,336 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.1

Radius: 9.3

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.57 AU - 2.25 AU

Year: 1704 Days

Day: 5.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,501,937 km

• M1: 119,080 km (0.109 R)
• M2: 409,449 km (0.106 R)
• M3: 752,328 km (0.077 R)
• M4: 1,252,134 km (0.053 R)
• M5: 1,801,757 km (0.04 R)
• M6: 2,144,635 km (0.081 R)
• M7: 2,776,686 km (0.117 R)
• M8: 3,871,144 km (0.106 R)
• M9: 4,974,129 km (0.069 R)
• M10: 6,754,344 km (0.068 R)
• M11: 7,367,994 km (0.061 R)
• M12: 7,931,380 km (0.06 R)
• M13: 8,706,446 km (0.072 R)
• M14: 9,531,180 km (0.06 R)
• M15: 12,048,313 km (0.097 R)
• M16: 12,750,825 km (0.091 R)
• M17: 13,071,712 km (0.082 R)
• M18: 14,452,800 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.6

Radius: 9.9

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.78 AU - 2.26 AU

Year: 1854 Days

Day: 10.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,501,937 km

• M1: 123,867 km (0.068 R)
• M2: 437,275 km (0.109 R)
• M3: 865,573 km (0.064 R)
• M4: 1,411,606 km (0.08 R)
• M5: 2,417,651 km (0.095 R)
• M6: 3,066,457 km (0.109 R)
• M7: 3,560,579 km (0.054 R)
• M8: 4,542,988 km (0.083 R)
• M9: 5,119,688 km (0.096 R)
• M10: 5,437,583 km (0.06 R)
• M11: 6,602,801 km (0.09 R)
• M12: 7,035,289 km (0.117 R)
• M13: 8,827,920 km (0.039 R)
• M14: 9,657,889 km (0.101 R)
• M15: 10,215,889 km (0.087 R)
• M16: 11,282,073 km (0.117 R)
• M17: 11,744,181 km (0.075 R)
• M18: 13,164,912 km (0.068 R)
• M19: 13,982,464 km (0.119 R)
• M20: 14,471,051 km (0.048 R)
• M21: 15,109,385 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.6

Radius: 14.7

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.65 AU - 4.13 AU

Year: 4030 Days

Day: 9.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,501,937 km

• M1: 212,878 km (0.098 R)
• M2: 751,729 km (0.104 R)
• M3: 1,805,945 km (0.082 R)
• M4: 3,058,977 km (0.054 R)
• M5: 5,324,936 km (0.108 R)
• M6: 5,783,603 km (0.119 R)
• M7: 6,558,071 km (0.096 R)
• M8: 10,843,302 km (0.064 R)
• M9: 11,440,647 km (0.106 R)
• M10: 12,022,882 km (0.05 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.6

Radius: 3.8

Gravity: 20.54 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 5.53 AU - 7.53 AU

Year: 10774 Days

Day: 24 Hours

Environment

Temp: -219 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 35,501,937 km

• M1: 47,572 km (0.115 R)
• M2: 165,754 km (0.073 R)
• M3: 365,617 km (0.091 R)
• M4: 486,642 km (0.086 R)
• M5: 642,074 km (0.081 R)
• M6: 965,953 km (0.112 R)
• M7: 1,282,802 km (0.101 R)
• M8: 1,556,566 km (0.118 R)
• M9: 1,679,236 km (0.087 R)
• M10: 3,223,834 km (0.117 R)
• M11: 3,776,449 km (0.084 R)
• M12: 3,999,200 km (0.119 R)
• M13: 5,368,469 km (0.117 R)
• M14: 5,810,830 km (0.115 R)
• M15: 6,311,235 km (0.119 R)
• M16: 8,686,999 km (0.114 R)
• M17: 9,519,661 km (0.119 R)
• M18: 10,025,451 km (0.098 R)
• M19: 10,990,357 km (0.097 R)
• M20: 12,015,701 km (0.119 R)
• M21: 14,793,883 km (0.088 R)
• M22: 14,976,692 km (0.113 R)
• M23: 16,105,408 km (0.095 R)
• M24: 16,559,288 km (0.084 R)
• M25: 18,672,058 km (0.113 R)
• M26: 19,317,423 km (0.106 R)
• M27: 20,126,449 km (0.111 R)
• M28: 20,728,730 km (0.063 R)
• M29: 21,811,669 km (0.084 R)
• M30: 23,094,620 km (0.105 R)
• M31: 28,542,227 km (0.091 R)
• M32: 28,731,019 km (0.118 R)
• M33: 34,359,041 km (0.093 R)
• M34: 37,204,691 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88.3

Radius: 6.5

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 7.83 AU - 10.39 AU

Year: 17754 Days

Day: 24.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,501,937 km

• M1: 80,932 km (0.118 R)
• M2: 308,770 km (0.078 R)
• M3: 682,166 km (0.087 R)
• M4: 1,719,777 km (0.099 R)
• M5: 1,963,771 km (0.107 R)
• M6: 2,540,022 km (0.111 R)
• M7: 2,761,726 km (0.063 R)
• M8: 3,665,297 km (0.117 R)
• M9: 5,118,940 km (0.059 R)
• M10: 5,846,434 km (0.085 R)
• M11: 6,201,879 km (0.102 R)
• M12: 10,034,576 km (0.074 R)
• M13: 12,387,152 km (0.067 R)
• M14: 13,747,296 km (0.054 R)
• M15: 16,954,675 km (0.084 R)
• M16: 19,826,056 km (0.116 R)
• M17: 20,042,824 km (0.109 R)
• M18: 20,925,451 km (0.069 R)
• M19: 23,891,678 km (0.062 R)
• M20: 25,389,751 km (0.078 R)
• M21: 26,861,195 km (0.072 R)
• M22: 28,756,301 km (0.102 R)
• M23: 31,028,992 km (0.113 R)
• M24: 31,615,416 km (0.109 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 12,203 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit