🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.6

Radius: 15

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.75 AU - 0.91 AU

Year: 522 Days

Day: 10.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,235,324 km

• M1: 188,793 km (0.039 R)
• M2: 676,930 km (0.1 R)
• M3: 1,432,400 km (0.049 R)
• M4: 2,189,514 km (0.101 R)
• M5: 3,240,888 km (0.11 R)
• M6: 3,717,507 km (0.12 R)
• M7: 4,301,088 km (0.076 R)
• M8: 5,011,678 km (0.119 R)
• M9: 5,599,747 km (0.108 R)
• M10: 6,977,993 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.5

Radius: 14.8

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.32 AU - 1.66 AU

Year: 1255 Days

Day: 14.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,235,324 km

• M1: 184,155 km (0.095 R)
• M2: 698,772 km (0.062 R)
• M3: 1,310,178 km (0.079 R)
• M4: 1,981,573 km (0.1 R)
• M5: 2,605,097 km (0.104 R)
• M6: 3,669,337 km (0.078 R)
• M7: 4,417,326 km (0.07 R)
• M8: 6,114,813 km (0.062 R)
• M9: 6,827,497 km (0.049 R)
• M10: 8,316,594 km (0.079 R)
• M11: 8,948,047 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.9

Radius: 11.3

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.13 AU - 1.87 AU

Year: 1268 Days

Day: 13.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,235,324 km

• M1: 141,220 km (0.116 R)
• M2: 680,371 km (0.091 R)
• M3: 2,047,396 km (0.113 R)
• M4: 2,450,712 km (0.095 R)
• M5: 3,529,762 km (0.1 R)
• M6: 3,907,347 km (0.09 R)
• M7: 4,744,347 km (0.084 R)
• M8: 5,309,976 km (0.102 R)
• M9: 6,772,595 km (0.069 R)
• M10: 7,813,946 km (0.051 R)
• M11: 10,245,210 km (0.114 R)
• M12: 11,331,740 km (0.082 R)
• M13: 12,644,311 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.9

Radius: 8.3

Gravity: 11.86 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.69 AU - 2.01 AU

Year: 1737 Days

Day: 9 Hours

Environment

Temp: -199 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,235,324 km

• M1: 104,270 km (0.062 R)
• M2: 405,859 km (0.075 R)
• M3: 678,426 km (0.086 R)
• M4: 1,101,788 km (0.084 R)
• M5: 1,526,197 km (0.095 R)
• M6: 1,874,611 km (0.112 R)
• M7: 2,262,967 km (0.091 R)
• M8: 2,704,430 km (0.064 R)
• M9: 4,360,928 km (0.095 R)
• M10: 4,959,469 km (0.033 R)
• M11: 5,357,848 km (0.109 R)
• M12: 6,345,194 km (0.114 R)
• M13: 6,682,387 km (0.12 R)
• M14: 7,004,023 km (0.116 R)
• M15: 8,212,624 km (0.037 R)
• M16: 9,157,035 km (0.058 R)
• M17: 11,260,531 km (0.045 R)
• M18: 11,525,170 km (0.094 R)
• M19: 13,538,906 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.5

Radius: 11.2

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.75 AU - 3.37 AU

Year: 3695 Days

Day: 7 Hours

Environment

Temp: -222 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 48,235,324 km

• M1: 139,276 km (0.08 R)
• M2: 535,860 km (0.086 R)
• M3: 1,135,897 km (0.109 R)
• M4: 2,063,403 km (0.047 R)
• M5: 2,590,736 km (0.069 R)
• M6: 3,120,013 km (0.085 R)
• M7: 5,967,908 km (0.115 R)
• M8: 7,043,965 km (0.072 R)
• M9: 8,617,137 km (0.069 R)
• M10: 10,065,394 km (0.112 R)
• M11: 10,490,850 km (0.117 R)
• M12: 11,839,325 km (0.117 R)
• M13: 12,845,520 km (0.085 R)
• M14: 14,098,253 km (0.077 R)
• M15: 14,484,515 km (0.081 R)
• M16: 17,171,143 km (0.104 R)
• M17: 17,835,357 km (0.116 R)
• M18: 18,516,626 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.9

Radius: 8.1

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.3 AU - 4 AU

Year: 4813 Days

Day: 13.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 48,235,324 km

• M1: 125,213 km (0.081 R)
• M2: 405,410 km (0.059 R)
• M3: 952,639 km (0.079 R)
• M4: 1,664,127 km (0.065 R)
• M5: 2,201,183 km (0.071 R)
• M6: 2,551,392 km (0.106 R)
• M7: 3,014,247 km (0.117 R)
• M8: 3,447,333 km (0.047 R)
• M9: 4,241,848 km (0.117 R)
• M10: 5,309,228 km (0.117 R)
• M11: 5,966,412 km (0.113 R)
• M12: 7,162,148 km (0.093 R)
• M13: 8,510,473 km (0.112 R)
• M14: 9,179,026 km (0.06 R)
• M15: 10,370,723 km (0.111 R)
• M16: 11,207,872 km (0.091 R)
• M17: 12,729,432 km (0.033 R)
• M18: 15,424,139 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.7

Radius: 3.5

Gravity: 61.12 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 5.66 AU - 8.72 AU

Year: 13308 Days

Day: 16.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,235,324 km

• M1: 43,683 km (0.108 R)
• M2: 233,073 km (0.113 R)
• M3: 433,834 km (0.116 R)
• M4: 1,874,013 km (0.118 R)
• M5: 2,267,754 km (0.101 R)
• M6: 2,970,116 km (0.067 R)
• M7: 3,750,419 km (0.106 R)
• M8: 5,816,066 km (0.107 R)
• M9: 5,929,910 km (0.095 R)
• M10: 6,980,685 km (0.065 R)
• M11: 17,598,095 km (0.072 R)
• M12: 19,738,691 km (0.112 R)
• M13: 27,829,841 km (0.099 R)
• M14: 32,477,249 km (0.095 R)
• M15: 32,956,561 km (0.105 R)
• M16: 39,081,247 km (0.107 R)
• M17: 41,420,210 km (0.117 R)
• M18: 43,126,224 km (0.074 R)
• M19: 44,730,811 km (0.093 R)
• M20: 48,058,316 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 131

Radius: 6.8

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 7.81 AU - 12.95 AU

Year: 23084 Days

Day: 15.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,235,324 km

• M1: 87,216 km (0.11 R)
• M2: 2,312,484 km (0.12 R)
• M3: 3,651,983 km (0.101 R)
• M4: 6,212,351 km (0.078 R)
• M5: 9,773,977 km (0.073 R)
• M6: 10,537,225 km (0.114 R)
• M7: 19,047,848 km (0.068 R)
• M8: 24,187,133 km (0.11 R)
• M9: 33,915,034 km (0.108 R)
• M10: 38,441,417 km (0.097 R)
• M11: 41,629,048 km (0.071 R)
• M12: 42,155,034 km (0.052 R)
• M13: 46,522,544 km (0.11 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 15,849 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit