🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.6

Radius: 10

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.51 AU - 0.67 AU

Year: 313 Days

Day: 7.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,048,400 km

• M1: 124,316 km (0.081 R)
• M2: 500,704 km (0.041 R)
• M3: 821,741 km (0.067 R)
• M4: 1,165,966 km (0.046 R)
• M5: 1,574,218 km (0.074 R)
• M6: 2,056,821 km (0.11 R)
• M7: 2,493,348 km (0.041 R)
• M8: 2,877,964 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.2

Radius: 10.3

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.74 AU - 2.72 AU

Year: 2299 Days

Day: 12.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,048,400 km

• M1: 137,780 km (0.113 R)
• M2: 458,069 km (0.084 R)
• M3: 887,564 km (0.091 R)
• M4: 1,259,165 km (0.119 R)
• M5: 2,131,171 km (0.108 R)
• M6: 2,767,860 km (0.057 R)
• M7: 4,418,972 km (0.095 R)
• M8: 5,731,244 km (0.101 R)
• M9: 6,394,411 km (0.086 R)
• M10: 7,019,730 km (0.077 R)
• M11: 7,347,350 km (0.085 R)
• M12: 8,033,406 km (0.08 R)
• M13: 9,354,056 km (0.095 R)
• M14: 9,714,886 km (0.09 R)
• M15: 10,892,969 km (0.088 R)
• M16: 11,333,235 km (0.066 R)
• M17: 12,901,470 km (0.119 R)
• M18: 14,228,104 km (0.079 R)
• M19: 14,997,935 km (0.11 R)
• M20: 16,673,131 km (0.037 R)
• M21: 18,245,256 km (0.025 R)
• M22: 18,981,127 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.5

Radius: 14.8

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 3.16 AU - 3.46 AU

Year: 4157 Days

Day: 12.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,048,400 km

• M1: 184,155 km (0.077 R)
• M2: 705,504 km (0.119 R)
• M3: 1,221,167 km (0.073 R)
• M4: 2,253,842 km (0.085 R)
• M5: 2,818,573 km (0.072 R)
• M6: 3,417,264 km (0.109 R)
• M7: 4,168,993 km (0.082 R)
• M8: 4,696,476 km (0.094 R)
• M9: 5,187,905 km (0.116 R)
• M10: 6,034,329 km (0.109 R)
• M11: 7,103,206 km (0.116 R)
• M12: 7,718,353 km (0.111 R)
• M13: 10,242,069 km (0.111 R)
• M14: 11,950,028 km (0.071 R)
• M15: 12,872,149 km (0.117 R)
• M16: 14,051,279 km (0.071 R)
• M17: 14,858,360 km (0.082 R)
• M18: 18,147,418 km (0.053 R)
• M19: 19,300,519 km (0.119 R)
• M20: 25,493,871 km (0.118 R)
• M21: 26,210,145 km (0.09 R)
• M22: 27,350,979 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.2

Radius: 8.6

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.96 AU - 4.6 AU

Year: 5073 Days

Day: 9.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,048,400 km

• M1: 107,710 km (0.058 R)
• M2: 754,871 km (0.1 R)
• M3: 1,135,897 km (0.113 R)
• M4: 1,691,503 km (0.112 R)
• M5: 2,160,044 km (0.098 R)
• M6: 2,696,053 km (0.108 R)
• M7: 3,965,391 km (0.027 R)
• M8: 4,769,479 km (0.109 R)
• M9: 5,427,112 km (0.04 R)
• M10: 6,857,566 km (0.078 R)
• M11: 7,419,905 km (0.101 R)
• M12: 8,120,322 km (0.1 R)
• M13: 10,487,110 km (0.108 R)
• M14: 10,834,027 km (0.108 R)
• M15: 12,251,318 km (0.088 R)
• M16: 13,329,619 km (0.077 R)
• M17: 14,900,098 km (0.028 R)
• M18: 15,173,263 km (0.098 R)
• M19: 17,360,833 km (0.094 R)
• M20: 20,616,083 km (0.055 R)
• M21: 24,864,512 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.2

Radius: 13.7

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.92 AU - 4.72 AU

Year: 5154 Days

Day: 10.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,048,400 km

• M1: 180,415 km (0.05 R)
• M2: 770,579 km (0.107 R)
• M3: 1,571,077 km (0.078 R)
• M4: 2,011,194 km (0.049 R)
• M5: 2,628,584 km (0.09 R)
• M6: 3,073,189 km (0.072 R)
• M7: 3,952,226 km (0.054 R)
• M8: 4,742,402 km (0.033 R)
• M9: 6,926,381 km (0.048 R)
• M10: 7,670,332 km (0.113 R)
• M11: 8,285,179 km (0.106 R)
• M12: 9,448,751 km (0.092 R)
• M13: 9,984,611 km (0.11 R)
• M14: 13,595,604 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.8

Radius: 13.5

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.38 AU - 4.58 AU

Year: 5481 Days

Day: 13.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,048,400 km

• M1: 167,849 km (0.106 R)
• M2: 662,270 km (0.097 R)
• M3: 1,299,706 km (0.116 R)
• M4: 2,749,459 km (0.087 R)
• M5: 3,545,170 km (0.082 R)
• M6: 6,324,699 km (0.086 R)
• M7: 8,376,134 km (0.097 R)
• M8: 9,405,517 km (0.113 R)
• M9: 15,182,688 km (0.099 R)
• M10: 19,044,258 km (0.074 R)
• M11: 20,134,228 km (0.103 R)
• M12: 20,694,472 km (0.044 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 273.3

Radius: 7.3

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 6.4 AU - 8.66 AU

Year: 14263 Days

Day: 24 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,048,400 km

• M1: 171,738 km (0.044 R)
• M2: 509,979 km (0.114 R)
• M3: 857,046 km (0.12 R)
• M4: 1,622,539 km (0.068 R)
• M5: 2,657,008 km (0.098 R)
• M6: 5,837,309 km (0.072 R)
• M7: 8,095,938 km (0.048 R)
• M8: 12,687,246 km (0.101 R)
• M9: 13,692,095 km (0.1 R)
• M10: 16,745,387 km (0.119 R)
• M11: 18,098,949 km (0.093 R)
• M12: 22,851,075 km (0.074 R)
• M13: 25,696,576 km (0.102 R)
• M14: 26,917,294 km (0.069 R)
• M15: 42,863,530 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 126.9

Radius: 7.3

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 8.18 AU - 10.98 AU

Year: 20467 Days

Day: 17 Hours

Environment

Temp: -228 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,048,400 km

• M1: 91,255 km (0.116 R)
• M2: 509,680 km (0.097 R)
• M3: 2,124,589 km (0.107 R)
• M4: 2,738,688 km (0.093 R)
• M5: 2,989,265 km (0.114 R)
• M6: 3,990,523 km (0.05 R)
• M7: 6,974,103 km (0.115 R)
• M8: 14,847,439 km (0.083 R)
• M9: 16,842,027 km (0.1 R)
• M10: 25,043,880 km (0.12 R)
• M11: 25,498,658 km (0.073 R)
• M12: 26,051,721 km (0.097 R)
• M13: 29,237,109 km (0.036 R)
• M14: 31,816,475 km (0.055 R)
• M15: 42,742,804 km (0.027 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 242 - 13,555 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit