🌌 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: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.1

Radius: 8

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.55 AU - 0.75 AU

Year: 349 Days

Day: 6.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,823,720 km

• M1: 99,483 km (0.063 R)
• M2: 375,191 km (0.118 R)
• M3: 672,143 km (0.111 R)
• M4: 1,070,822 km (0.085 R)
• M5: 1,849,030 km (0.082 R)
• M6: 2,104,992 km (0.113 R)
• M7: 2,665,684 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.5

Radius: 11.9

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.63 AU - 0.75 AU

Year: 382 Days

Day: 7.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,823,720 km

• M1: 147,952 km (0.118 R)
• M2: 562,189 km (0.058 R)
• M3: 1,378,544 km (0.115 R)
• M4: 1,757,625 km (0.091 R)
• M5: 2,207,466 km (0.118 R)
• M6: 2,693,958 km (0.119 R)
• M7: 3,706,886 km (0.12 R)
• M8: 4,702,310 km (0.115 R)
• M9: 5,630,565 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.5

Radius: 8

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.25 AU - 3.17 AU

Year: 2975 Days

Day: 12.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,823,720 km

• M1: 99,782 km (0.088 R)
• M2: 770,878 km (0.091 R)
• M3: 1,257,819 km (0.114 R)
• M4: 2,143,588 km (0.116 R)
• M5: 2,467,318 km (0.12 R)
• M6: 3,178,356 km (0.052 R)
• M7: 4,764,692 km (0.12 R)
• M8: 5,755,928 km (0.092 R)
• M9: 7,460,296 km (0.087 R)
• M10: 11,960,200 km (0.096 R)
• M11: 14,353,467 km (0.098 R)
• M12: 16,345,662 km (0.082 R)
• M13: 17,269,129 km (0.091 R)
• M14: 20,682,205 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.8

Radius: 12

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.87 AU - 3.45 AU

Year: 3746 Days

Day: 9.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 138.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 38,823,720 km

• M1: 149,299 km (0.065 R)
• M2: 846,574 km (0.113 R)
• M3: 1,235,978 km (0.085 R)
• M4: 1,696,589 km (0.08 R)
• M5: 2,074,474 km (0.106 R)
• M6: 3,099,369 km (0.068 R)
• M7: 3,618,922 km (0.107 R)
• M8: 5,371,461 km (0.055 R)
• M9: 6,540,120 km (0.06 R)
• M10: 7,931,530 km (0.077 R)
• M11: 8,426,250 km (0.112 R)
• M12: 9,788,338 km (0.025 R)
• M13: 10,762,370 km (0.1 R)
• M14: 13,157,282 km (0.084 R)
• M15: 16,278,343 km (0.051 R)
• M16: 17,027,978 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.9

Radius: 9.3

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.72 AU - 4.32 AU

Year: 4404 Days

Day: 6.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,823,720 km

• M1: 117,434 km (0.079 R)
• M2: 653,593 km (0.03 R)
• M3: 1,009,636 km (0.111 R)
• M4: 1,687,015 km (0.086 R)
• M5: 2,252,944 km (0.063 R)
• M6: 3,245,526 km (0.117 R)
• M7: 3,840,177 km (0.101 R)
• M8: 5,173,693 km (0.094 R)
• M9: 5,697,435 km (0.075 R)
• M10: 6,012,338 km (0.088 R)
• M11: 6,620,005 km (0.101 R)
• M12: 6,997,889 km (0.113 R)
• M13: 7,390,284 km (0.068 R)
• M14: 9,073,111 km (0.074 R)
• M15: 9,613,309 km (0.069 R)
• M16: 10,522,116 km (0.107 R)
• M17: 11,363,305 km (0.076 R)
• M18: 12,686,049 km (0.114 R)
• M19: 14,982,077 km (0.101 R)
• M20: 15,331,239 km (0.096 R)
• M21: 15,891,034 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.5

Radius: 6.8

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 5.06 AU - 8.16 AU

Year: 11333 Days

Day: 23.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,823,720 km

• M1: 85,420 km (0.118 R)
• M2: 351,854 km (0.084 R)
• M3: 777,161 km (0.113 R)
• M4: 1,127,370 km (0.05 R)
• M5: 1,916,648 km (0.119 R)
• M6: 2,825,754 km (0.058 R)
• M7: 4,151,042 km (0.111 R)
• M8: 5,107,122 km (0.082 R)
• M9: 7,624,405 km (0.097 R)
• M10: 9,353,308 km (0.113 R)
• M11: 10,091,274 km (0.095 R)
• M12: 10,679,044 km (0.057 R)
• M13: 11,328,299 km (0.076 R)
• M14: 13,044,785 km (0.044 R)
• M15: 16,629,449 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 205.3

Radius: 4.5

Gravity: 10.14 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 5.71 AU - 9.01 AU

Year: 13315 Days

Day: 20.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 38,823,720 km

• M1: 55,950 km (0.096 R)
• M2: 330,312 km (0.027 R)
• M3: 474,375 km (0.058 R)
• M4: 1,031,178 km (0.102 R)
• M5: 1,188,705 km (0.097 R)
• M6: 1,675,795 km (0.082 R)
• M7: 1,956,591 km (0.109 R)
• M8: 2,285,556 km (0.051 R)
• M9: 2,463,428 km (0.102 R)
• M10: 4,263,539 km (0.099 R)
• M11: 5,827,585 km (0.099 R)
• M12: 11,151,025 km (0.075 R)
• M13: 11,508,265 km (0.106 R)
• M14: 13,467,548 km (0.107 R)
• M15: 17,548,728 km (0.109 R)
• M16: 18,101,791 km (0.04 R)
• M17: 21,588,020 km (0.104 R)
• M18: 26,928,066 km (0.03 R)
• M19: 31,846,544 km (0.109 R)
• M20: 34,141,226 km (0.118 R)
• M21: 37,105,209 km (0.068 R)
• M22: 37,331,401 km (0.108 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 10,586 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit