🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.3

Radius: 10.7

Gravity: 8.28 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.58 AU - 0.64 AU

Year: 329 Days

Day: 7.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,299,730 km

• M1: 137,331 km (0.038 R)
• M2: 478,115 km (0.098 R)
• M3: 1,144,873 km (0.052 R)
• M4: 1,671,307 km (0.116 R)
• M5: 2,309,941 km (0.091 R)
• M6: 2,672,117 km (0.074 R)
• M7: 3,281,728 km (0.101 R)
• M8: 3,656,322 km (0.09 R)
• M9: 4,231,825 km (0.1 R)
• M10: 4,852,057 km (0.085 R)
• M11: 5,340,345 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.3

Radius: 10.9

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.85 AU - 1.35 AU

Year: 796 Days

Day: 6.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,299,730 km

• M1: 135,536 km (0.099 R)
• M2: 826,079 km (0.108 R)
• M3: 1,359,994 km (0.068 R)
• M4: 1,703,471 km (0.093 R)
• M5: 2,549,447 km (0.087 R)
• M6: 3,817,289 km (0.091 R)
• M7: 5,110,413 km (0.097 R)
• M8: 5,504,005 km (0.064 R)
• M9: 6,830,340 km (0.076 R)
• M10: 7,332,240 km (0.102 R)
• M11: 8,131,093 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768

Radius: 11

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.93 AU - 1.45 AU

Year: 896 Days

Day: 9.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,299,730 km

• M1: 136,732 km (0.079 R)
• M2: 486,941 km (0.113 R)
• M3: 891,753 km (0.079 R)
• M4: 1,527,544 km (0.091 R)
• M5: 1,873,115 km (0.115 R)
• M6: 2,229,307 km (0.085 R)
• M7: 2,976,998 km (0.114 R)
• M8: 3,946,841 km (0.057 R)
• M9: 4,985,499 km (0.025 R)
• M10: 5,421,427 km (0.114 R)
• M11: 5,821,152 km (0.097 R)
• M12: 7,069,696 km (0.115 R)
• M13: 7,523,277 km (0.1 R)
• M14: 8,864,871 km (0.113 R)
• M15: 9,766,048 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.5

Radius: 13.1

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.94 AU - 1.54 AU

Year: 953 Days

Day: 12.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,299,730 km

• M1: 163,062 km (0.115 R)
• M2: 714,479 km (0.03 R)
• M3: 1,146,219 km (0.107 R)
• M4: 1,881,193 km (0.098 R)
• M5: 2,720,587 km (0.113 R)
• M6: 3,503,881 km (0.069 R)
• M7: 4,485,842 km (0.102 R)
• M8: 5,257,019 km (0.092 R)
• M9: 5,833,120 km (0.091 R)
• M10: 6,519,924 km (0.082 R)
• M11: 7,689,331 km (0.09 R)
• M12: 9,254,423 km (0.084 R)
• M13: 10,035,025 km (0.042 R)
• M14: 10,473,197 km (0.1 R)
• M15: 10,891,623 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.1

Radius: 8.2

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.36 AU - 1.58 AU

Year: 1230 Days

Day: 6.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,299,730 km

• M1: 124,615 km (0.104 R)
• M2: 443,558 km (0.053 R)
• M3: 751,281 km (0.117 R)
• M4: 1,254,528 km (0.119 R)
• M5: 1,887,626 km (0.101 R)
• M6: 2,221,080 km (0.057 R)
• M7: 2,569,044 km (0.093 R)
• M8: 3,244,628 km (0.099 R)
• M9: 3,555,193 km (0.037 R)
• M10: 3,821,178 km (0.084 R)
• M11: 4,100,328 km (0.107 R)
• M12: 4,499,904 km (0.111 R)
• M13: 5,001,954 km (0.112 R)
• M14: 5,602,889 km (0.118 R)
• M15: 6,972,607 km (0.098 R)
• M16: 7,315,934 km (0.084 R)
• M17: 8,776,009 km (0.105 R)
• M18: 10,452,553 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825

Radius: 12.8

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.38 AU - 2.08 AU

Year: 1571 Days

Day: 12.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,299,730 km

• M1: 159,172 km (0.106 R)
• M2: 605,273 km (0.108 R)
• M3: 1,156,691 km (0.088 R)
• M4: 1,733,241 km (0.114 R)
• M5: 2,308,744 km (0.028 R)
• M6: 2,808,102 km (0.082 R)
• M7: 3,363,409 km (0.04 R)
• M8: 3,796,644 km (0.077 R)
• M9: 4,962,909 km (0.108 R)
• M10: 5,505,052 km (0.074 R)
• M11: 8,376,134 km (0.106 R)
• M12: 10,167,868 km (0.026 R)
• M13: 10,865,892 km (0.111 R)
• M14: 11,558,380 km (0.054 R)
• M15: 12,164,102 km (0.099 R)
• M16: 12,911,044 km (0.116 R)
• M17: 13,316,155 km (0.071 R)
• M18: 14,280,613 km (0.051 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.4

Radius: 10

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.31 AU - 3.01 AU

Year: 2995 Days

Day: 11.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 21,299,730 km

• M1: 124,914 km (0.105 R)
• M2: 507,885 km (0.072 R)
• M3: 1,107,473 km (0.04 R)
• M4: 1,767,050 km (0.091 R)
• M5: 2,160,343 km (0.055 R)
• M6: 2,597,169 km (0.116 R)
• M7: 2,994,949 km (0.098 R)
• M8: 3,504,480 km (0.106 R)
• M9: 4,588,765 km (0.106 R)
• M10: 5,731,094 km (0.108 R)
• M11: 7,436,061 km (0.073 R)
• M12: 10,822,060 km (0.081 R)
• M13: 11,532,350 km (0.101 R)
• M14: 12,442,354 km (0.103 R)
• M15: 13,133,795 km (0.083 R)
• M16: 15,906,293 km (0.065 R)
• M17: 16,361,070 km (0.118 R)
• M18: 17,831,468 km (0.093 R)
• M19: 18,157,591 km (0.042 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.9

Radius: 9

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.35 AU - 4.75 AU

Year: 5626 Days

Day: 11.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,299,730 km

• M1: 113,545 km (0.101 R)
• M2: 423,512 km (0.059 R)
• M3: 1,092,214 km (0.117 R)
• M4: 3,675,620 km (0.102 R)
• M5: 4,552,562 km (0.101 R)
• M6: 5,666,169 km (0.03 R)
• M7: 8,908,254 km (0.074 R)
• M8: 10,838,515 km (0.057 R)
• M9: 14,064,145 km (0.086 R)
• M10: 18,277,868 km (0.088 R)
• M11: 20,732,769 km (0.106 R)
• M12: 21,299,745 km (0.112 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 193 - 12,643 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit