🌌 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 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.6

Radius: 9.5

Gravity: 8.35 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.56 AU - 0.7 AU

Year: 345 Days

Day: 10.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,029,883 km

• M1: 118,182 km (0.085 R)
• M2: 461,360 km (0.111 R)
• M3: 948,151 km (0.056 R)
• M4: 1,376,001 km (0.094 R)
• M5: 1,869,375 km (0.113 R)
• M6: 2,246,810 km (0.088 R)
• M7: 2,598,515 km (0.101 R)
• M8: 3,529,612 km (0.103 R)
• M9: 3,956,714 km (0.108 R)
• M10: 4,349,857 km (0.091 R)
• M11: 5,048,180 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74

Radius: 11.2

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.65 AU - 0.67 AU

Year: 370 Days

Day: 13.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,029,883 km

• M1: 139,276 km (0.088 R)
• M2: 525,089 km (0.079 R)
• M3: 1,026,241 km (0.049 R)
• M4: 1,455,587 km (0.074 R)
• M5: 1,909,318 km (0.109 R)
• M6: 2,332,829 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.4

Radius: 12.8

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.71 AU - 0.71 AU

Year: 413 Days

Day: 12.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,029,883 km

• M1: 159,172 km (0.112 R)
• M2: 905,666 km (0.117 R)
• M3: 1,597,107 km (0.056 R)
• M4: 2,376,362 km (0.08 R)
• M5: 2,785,363 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.6

Radius: 11.4

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.59 AU - 0.97 AU

Year: 476 Days

Day: 5.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,029,883 km

• M1: 142,118 km (0.069 R)
• M2: 569,968 km (0.065 R)
• M3: 987,944 km (0.087 R)
• M4: 1,587,084 km (0.049 R)
• M5: 2,135,958 km (0.081 R)
• M6: 2,981,186 km (0.095 R)
• M7: 3,681,304 km (0.066 R)
• M8: 4,546,578 km (0.087 R)
• M9: 4,941,367 km (0.103 R)
• M10: 5,627,573 km (0.06 R)
• M11: 6,047,644 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.7

Radius: 11.4

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.82 AU - 1.18 AU

Year: 690 Days

Day: 9.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,029,883 km

• M1: 143,614 km (0.11 R)
• M2: 507,735 km (0.084 R)
• M3: 869,612 km (0.096 R)
• M4: 1,247,197 km (0.04 R)
• M5: 1,736,831 km (0.117 R)
• M6: 2,634,867 km (0.11 R)
• M7: 3,214,858 km (0.092 R)
• M8: 4,249,926 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.6

Radius: 11.7

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.92 AU - 1.38 AU

Year: 851 Days

Day: 6.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,029,883 km

• M1: 145,559 km (0.115 R)
• M2: 553,961 km (0.098 R)
• M3: 1,132,456 km (0.091 R)
• M4: 1,796,970 km (0.113 R)
• M5: 2,491,104 km (0.113 R)
• M6: 2,865,996 km (0.09 R)
• M7: 3,368,196 km (0.097 R)
• M8: 4,426,601 km (0.079 R)
• M9: 5,040,850 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 519.9

Radius: 9.9

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.52 AU - 1.82 AU

Year: 1490 Days

Day: 11.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,029,883 km

• M1: 126,560 km (0.094 R)
• M2: 451,486 km (0.084 R)
• M3: 961,466 km (0.102 R)
• M4: 1,794,277 km (0.09 R)
• M5: 2,803,314 km (0.075 R)
• M6: 3,556,839 km (0.094 R)
• M7: 4,032,710 km (0.044 R)
• M8: 5,632,958 km (0.088 R)
• M9: 6,374,216 km (0.101 R)
• M10: 6,829,741 km (0.097 R)
• M11: 9,781,307 km (0.063 R)
• M12: 10,486,063 km (0.1 R)
• M13: 11,258,885 km (0.039 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.1

Radius: 13.5

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.51 AU - 3.15 AU

Year: 3286 Days

Day: 11.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,029,883 km

• M1: 167,849 km (0.067 R)
• M2: 730,187 km (0.093 R)
• M3: 1,402,330 km (0.101 R)
• M4: 2,059,364 km (0.065 R)
• M5: 2,497,536 km (0.09 R)
• M6: 3,473,214 km (0.103 R)
• M7: 4,576,348 km (0.099 R)
• M8: 6,769,304 km (0.077 R)
• M9: 7,467,477 km (0.087 R)
• M10: 8,013,808 km (0.089 R)
• M11: 8,518,103 km (0.098 R)
• M12: 9,891,112 km (0.102 R)
• M13: 10,472,001 km (0.108 R)
• M14: 15,248,960 km (0.086 R)
• M15: 15,815,786 km (0.1 R)
• M16: 16,343,119 km (0.046 R)
• M17: 19,397,010 km (0.103 R)
• M18: 20,681,307 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 215.8

Radius: 4.7

Gravity: 9.77 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.17 AU - 10.19 AU

Year: 16149 Days

Day: 15.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,029,883 km

• M1: 58,493 km (0.104 R)
• M2: 302,936 km (0.097 R)
• M3: 510,278 km (0.079 R)
• M4: 734,077 km (0.074 R)
• M5: 980,764 km (0.093 R)
• M6: 1,174,642 km (0.099 R)
• M7: 1,997,281 km (0.111 R)
• M8: 2,274,636 km (0.119 R)
• M9: 2,759,183 km (0.112 R)
• M10: 4,281,790 km (0.117 R)
• M11: 5,047,881 km (0.098 R)
• M12: 5,764,305 km (0.07 R)
• M13: 9,034,515 km (0.117 R)
• M14: 9,888,718 km (0.096 R)
• M15: 10,185,072 km (0.086 R)
• M16: 13,243,451 km (0.086 R)
• M17: 13,908,563 km (0.107 R)
• M18: 20,928,293 km (0.027 R)
• M19: 24,329,551 km (0.103 R)
• M20: 30,612,063 km (0.117 R)
• M21: 33,622,421 km (0.041 R)
• M22: 39,354,712 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 542.2

Radius: 7.1

Gravity: 10.76 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 8.36 AU - 9.34 AU

Year: 18173 Days

Day: 23.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,029,883 km

• M1: 148,551 km (0.078 R)
• M2: 977,323 km (0.088 R)
• M3: 1,598,752 km (0.107 R)
• M4: 2,796,134 km (0.057 R)
• M5: 3,999,948 km (0.11 R)
• M6: 4,277,003 km (0.115 R)
• M7: 6,258,876 km (0.057 R)
• M8: 7,518,490 km (0.096 R)
• M9: 10,999,632 km (0.082 R)
• M10: 12,954,278 km (0.09 R)
• M11: 13,839,000 km (0.104 R)
• M12: 16,187,387 km (0.052 R)
• M13: 17,455,678 km (0.089 R)
• M14: 22,512,984 km (0.08 R)
• M15: 28,467,577 km (0.088 R)
• M16: 35,916,953 km (0.096 R)
• M17: 48,965,328 km (0.106 R)
• M18: 58,429,188 km (0.089 R)
• M19: 64,850,079 km (0.12 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 149 - 14,944 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit