🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.4

Radius: 10.5

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.65 AU - 0.67 AU

Year: 358 Days

Day: 9.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,700,061 km

• M1: 130,749 km (0.12 R)
• M2: 459,864 km (0.062 R)
• M3: 830,567 km (0.09 R)
• M4: 1,292,226 km (0.094 R)
• M5: 1,625,381 km (0.1 R)
• M6: 2,353,623 km (0.119 R)
• M7: 3,318,230 km (0.077 R)
• M8: 3,838,083 km (0.078 R)
• M9: 4,360,628 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830

Radius: 14.1

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.61 AU - 2.01 AU

Year: 1624 Days

Day: 13.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,700,061 km

• M1: 175,329 km (0.067 R)
• M2: 776,712 km (0.063 R)
• M3: 1,265,598 km (0.041 R)
• M4: 1,746,256 km (0.103 R)
• M5: 2,375,913 km (0.055 R)
• M6: 3,916,771 km (0.077 R)
• M7: 4,556,901 km (0.113 R)
• M8: 5,071,517 km (0.073 R)
• M9: 6,120,797 km (0.111 R)
• M10: 7,146,589 km (0.08 R)
• M11: 7,644,451 km (0.085 R)
• M12: 8,135,731 km (0.089 R)
• M13: 9,022,846 km (0.089 R)
• M14: 12,151,835 km (0.06 R)
• M15: 13,854,558 km (0.041 R)
• M16: 14,543,456 km (0.076 R)
• M17: 15,119,857 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.1

Radius: 14

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.87 AU - 1.93 AU

Year: 1746 Days

Day: 10.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 20,700,061 km

• M1: 174,132 km (0.067 R)
• M2: 637,437 km (0.029 R)
• M3: 1,321,996 km (0.089 R)
• M4: 2,489,159 km (0.12 R)
• M5: 4,029,568 km (0.101 R)
• M6: 4,962,610 km (0.051 R)
• M7: 6,814,482 km (0.105 R)
• M8: 7,748,422 km (0.074 R)
• M9: 8,542,936 km (0.089 R)
• M10: 10,294,877 km (0.094 R)
• M11: 11,640,958 km (0.078 R)
• M12: 13,186,005 km (0.107 R)
• M13: 14,096,607 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.4

Radius: 11.5

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.45 AU - 2.61 AU

Year: 2684 Days

Day: 5.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 20,700,061 km

• M1: 143,016 km (0.098 R)
• M2: 792,270 km (0.102 R)
• M3: 1,895,106 km (0.12 R)
• M4: 2,690,817 km (0.112 R)
• M5: 3,341,867 km (0.077 R)
• M6: 3,764,331 km (0.041 R)
• M7: 4,427,199 km (0.112 R)
• M8: 5,315,212 km (0.096 R)
• M9: 7,229,168 km (0.052 R)
• M10: 9,000,406 km (0.065 R)
• M11: 10,020,365 km (0.116 R)
• M12: 10,799,769 km (0.108 R)
• M13: 12,175,621 km (0.071 R)
• M14: 12,866,614 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.5

Radius: 9.2

Gravity: 8.75 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.42 AU - 2.9 AU

Year: 2893 Days

Day: 5.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,700,061 km

• M1: 114,442 km (0.057 R)
• M2: 452,833 km (0.096 R)
• M3: 783,444 km (0.053 R)
• M4: 1,578,856 km (0.102 R)
• M5: 1,876,256 km (0.078 R)
• M6: 2,726,272 km (0.072 R)
• M7: 3,247,171 km (0.092 R)
• M8: 3,714,515 km (0.096 R)
• M9: 4,443,655 km (0.08 R)
• M10: 5,672,901 km (0.084 R)
• M11: 7,872,738 km (0.079 R)
• M12: 8,372,694 km (0.077 R)
• M13: 10,627,433 km (0.047 R)
• M14: 12,620,376 km (0.054 R)
• M15: 13,776,169 km (0.067 R)
• M16: 14,601,500 km (0.08 R)
• M17: 15,356,820 km (0.07 R)
• M18: 16,781,590 km (0.078 R)
• M19: 17,220,211 km (0.113 R)
• M20: 18,234,933 km (0.026 R)
• M21: 20,819,984 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241

Radius: 13.6

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.92 AU - 4.52 AU

Year: 4785 Days

Day: 5.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 170.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,700,061 km

• M1: 169,195 km (0.11 R)
• M2: 728,990 km (0.112 R)
• M3: 1,286,841 km (0.114 R)
• M4: 2,328,042 km (0.115 R)
• M5: 2,860,610 km (0.069 R)
• M6: 4,581,734 km (0.049 R)
• M7: 6,152,512 km (0.088 R)
• M8: 7,332,689 km (0.084 R)
• M9: 8,123,164 km (0.105 R)
• M10: 8,692,833 km (0.099 R)
• M11: 12,337,935 km (0.051 R)
• M12: 15,286,359 km (0.107 R)
• M13: 16,000,390 km (0.11 R)
• M14: 17,495,321 km (0.111 R)
• M15: 18,107,476 km (0.108 R)
• M16: 19,256,986 km (0.09 R)
• M17: 20,577,187 km (0.119 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 523 - 12,535 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit