🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.6

Radius: 9.7

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.74 AU - 0.76 AU

Year: 457 Days

Day: 13.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,472,613 km

• M1: 120,576 km (0.085 R)
• M2: 466,895 km (0.08 R)
• M3: 908,059 km (0.106 R)
• M4: 1,305,241 km (0.084 R)
• M5: 1,824,346 km (0.038 R)
• M6: 2,459,539 km (0.111 R)
• M7: 2,852,682 km (0.096 R)
• M8: 3,256,446 km (0.036 R)
• M9: 4,010,569 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.4

Radius: 8.6

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.84 AU - 1.02 AU

Year: 630 Days

Day: 8.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 28,472,613 km

• M1: 107,262 km (0.054 R)
• M2: 377,286 km (0.086 R)
• M3: 667,057 km (0.076 R)
• M4: 1,219,073 km (0.086 R)
• M5: 1,648,569 km (0.108 R)
• M6: 2,167,075 km (0.081 R)
• M7: 2,757,687 km (0.079 R)
• M8: 3,277,241 km (0.048 R)
• M9: 4,696,924 km (0.078 R)
• M10: 5,956,389 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.5

Radius: 12.8

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.96 AU - 1 AU

Year: 682 Days

Day: 13.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,472,613 km

• M1: 159,471 km (0.108 R)
• M2: 720,463 km (0.114 R)
• M3: 1,233,434 km (0.093 R)
• M4: 1,650,813 km (0.078 R)
• M5: 2,289,147 km (0.049 R)
• M6: 2,944,684 km (0.059 R)
• M7: 3,401,257 km (0.062 R)
• M8: 3,890,741 km (0.081 R)
• M9: 4,569,168 km (0.05 R)
• M10: 5,047,133 km (0.077 R)
• M11: 6,007,701 km (0.114 R)
• M12: 7,638,318 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.4

Radius: 10.5

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.04 AU - 1.16 AU

Year: 811 Days

Day: 7.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,472,613 km

• M1: 130,599 km (0.112 R)
• M2: 503,098 km (0.116 R)
• M3: 959,072 km (0.098 R)
• M4: 1,485,208 km (0.1 R)
• M5: 2,076,269 km (0.086 R)
• M6: 2,432,461 km (0.098 R)
• M7: 2,773,395 km (0.026 R)
• M8: 3,409,635 km (0.076 R)
• M9: 4,009,373 km (0.049 R)
• M10: 4,535,658 km (0.109 R)
• M11: 5,544,695 km (0.089 R)
• M12: 5,912,557 km (0.057 R)
• M13: 6,474,745 km (0.11 R)
• M14: 6,945,829 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918

Radius: 10.9

Gravity: 7.73 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.67 AU - 2.21 AU

Year: 1899 Days

Day: 11.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 28,472,613 km

• M1: 135,536 km (0.113 R)
• M2: 571,314 km (0.061 R)
• M3: 943,963 km (0.086 R)
• M4: 2,529,850 km (0.091 R)
• M5: 3,361,165 km (0.104 R)
• M6: 3,953,423 km (0.118 R)
• M7: 5,162,174 km (0.099 R)
• M8: 6,363,145 km (0.086 R)
• M9: 6,848,142 km (0.115 R)
• M10: 7,445,037 km (0.093 R)
• M11: 8,775,860 km (0.101 R)
• M12: 9,411,800 km (0.063 R)
• M13: 11,003,073 km (0.055 R)
• M14: 11,545,066 km (0.102 R)
• M15: 12,350,052 km (0.074 R)
• M16: 16,442,900 km (0.057 R)
• M17: 17,306,379 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.4

Radius: 8.2

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.39 AU - 2.99 AU

Year: 3101 Days

Day: 13.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 28,472,613 km

• M1: 102,026 km (0.084 R)
• M2: 941,120 km (0.069 R)
• M3: 1,365,829 km (0.09 R)
• M4: 2,005,060 km (0.106 R)
• M5: 2,347,340 km (0.102 R)
• M6: 3,477,851 km (0.046 R)
• M7: 3,738,301 km (0.095 R)
• M8: 5,800,059 km (0.104 R)
• M9: 7,197,303 km (0.033 R)
• M10: 7,885,304 km (0.106 R)
• M11: 8,998,611 km (0.091 R)
• M12: 9,831,123 km (0.101 R)
• M13: 10,143,184 km (0.11 R)
• M14: 10,677,698 km (0.11 R)
• M15: 12,314,747 km (0.118 R)
• M16: 13,047,328 km (0.072 R)
• M17: 13,551,622 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.1

Radius: 13

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.94 AU - 3.82 AU

Year: 4368 Days

Day: 12.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,472,613 km

• M1: 161,715 km (0.083 R)
• M2: 693,386 km (0.092 R)
• M3: 1,194,240 km (0.054 R)
• M4: 1,698,534 km (0.118 R)
• M5: 2,451,909 km (0.096 R)
• M6: 2,868,689 km (0.064 R)
• M7: 3,401,257 km (0.113 R)
• M8: 3,848,106 km (0.107 R)
• M9: 4,354,495 km (0.092 R)
• M10: 5,221,115 km (0.108 R)
• M11: 6,199,336 km (0.09 R)
• M12: 8,263,936 km (0.059 R)
• M13: 9,661,479 km (0.082 R)
• M14: 10,602,300 km (0.101 R)
• M15: 11,211,014 km (0.104 R)
• M16: 11,923,698 km (0.056 R)
• M17: 13,092,207 km (0.11 R)
• M18: 15,318,672 km (0.105 R)
• M19: 15,802,322 km (0.086 R)
• M20: 17,159,474 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107

Radius: 9.1

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.31 AU - 4.57 AU

Year: 5497 Days

Day: 12.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 28,472,613 km

• M1: 113,994 km (0.052 R)
• M2: 819,946 km (0.111 R)
• M3: 1,640,041 km (0.1 R)
• M4: 2,040,365 km (0.055 R)
• M5: 2,463,877 km (0.117 R)
• M6: 3,071,244 km (0.062 R)
• M7: 3,629,843 km (0.094 R)
• M8: 4,396,083 km (0.046 R)
• M9: 4,883,323 km (0.095 R)
• M10: 5,572,521 km (0.068 R)
• M11: 6,644,539 km (0.116 R)
• M12: 9,225,551 km (0.11 R)
• M13: 10,423,381 km (0.058 R)
• M14: 10,907,779 km (0.069 R)
• M15: 11,603,260 km (0.077 R)
• M16: 11,921,604 km (0.089 R)
• M17: 12,827,419 km (0.111 R)
• M18: 13,168,053 km (0.105 R)
• M19: 13,470,839 km (0.073 R)
• M20: 14,962,181 km (0.111 R)
• M21: 16,560,484 km (0.082 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.2

Radius: 14.9

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 4.01 AU - 4.39 AU

Year: 6050 Days

Day: 14.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 79.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,472,613 km

• M1: 185,801 km (0.064 R)
• M2: 693,985 km (0.078 R)
• M3: 1,676,992 km (0.12 R)
• M4: 3,554,146 km (0.045 R)
• M5: 4,026,576 km (0.088 R)
• M6: 8,579,288 km (0.099 R)
• M7: 9,804,944 km (0.092 R)
• M8: 13,403,670 km (0.109 R)
• M9: 16,418,217 km (0.088 R)
• M10: 19,528,057 km (0.077 R)
• M11: 20,875,635 km (0.04 R)
• M12: 25,922,618 km (0.078 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: 260 - 16,447 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit