🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.2

Radius: 11.8

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.66 AU - 0.9 AU

Year: 452 Days

Day: 6.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,753,717 km

• M1: 149,448 km (0.096 R)
• M2: 852,558 km (0.093 R)
• M3: 1,475,334 km (0.027 R)
• M4: 1,923,679 km (0.112 R)
• M5: 2,686,030 km (0.091 R)
• M6: 3,884,309 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.6

Radius: 13.3

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.8 AU - 1.08 AU

Year: 598 Days

Day: 5 Hours

Environment

Temp: -150 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 52,753,717 km

• M1: 168,447 km (0.11 R)
• M2: 1,150,557 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.3

Radius: 14.9

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.99 AU - 1.07 AU

Year: 686 Days

Day: 11.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,753,717 km

• M1: 185,501 km (0.101 R)
• M2: 675,584 km (0.077 R)
• M3: 1,212,042 km (0.067 R)
• M4: 1,801,458 km (0.075 R)
• M5: 2,398,802 km (0.102 R)
• M6: 3,165,790 km (0.074 R)
• M7: 3,986,035 km (0.094 R)
• M8: 4,636,786 km (0.106 R)
• M9: 5,302,497 km (0.115 R)
• M10: 5,872,764 km (0.111 R)
• M11: 6,589,786 km (0.112 R)
• M12: 7,480,043 km (0.056 R)
• M13: 8,449,437 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.2

Radius: 13.1

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.16 AU - 1.34 AU

Year: 917 Days

Day: 14.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,753,717 km

• M1: 163,211 km (0.091 R)
• M2: 1,013,675 km (0.051 R)
• M3: 2,434,556 km (0.12 R)
• M4: 3,141,705 km (0.053 R)
• M5: 3,897,324 km (0.112 R)
• M6: 4,471,181 km (0.095 R)
• M7: 4,934,187 km (0.088 R)
• M8: 5,808,137 km (0.091 R)
• M9: 7,074,633 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.9

Radius: 11.2

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.09 AU - 1.65 AU

Year: 1052 Days

Day: 9.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,753,717 km

• M1: 139,276 km (0.114 R)
• M2: 495,319 km (0.095 R)
• M3: 869,164 km (0.065 R)
• M4: 1,408,314 km (0.059 R)
• M5: 2,058,168 km (0.068 R)
• M6: 2,612,876 km (0.105 R)
• M7: 3,044,017 km (0.066 R)
• M8: 3,410,682 km (0.107 R)
• M9: 4,191,134 km (0.09 R)
• M10: 4,769,928 km (0.084 R)
• M11: 5,401,231 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197

Radius: 14.6

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.34 AU - 2.2 AU

Year: 1545 Days

Day: 11.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,753,717 km

• M1: 294,558 km (0.107 R)
• M2: 866,920 km (0.09 R)
• M3: 1,650,663 km (0.115 R)
• M4: 2,227,961 km (0.08 R)
• M5: 2,963,983 km (0.062 R)
• M6: 4,289,121 km (0.119 R)
• M7: 5,140,033 km (0.101 R)
• M8: 6,475,194 km (0.036 R)
• M9: 7,408,835 km (0.092 R)
• M10: 8,104,764 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.4

Radius: 12.5

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.58 AU - 4.92 AU

Year: 5748 Days

Day: 7.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,753,717 km

• M1: 155,432 km (0.119 R)
• M2: 608,115 km (0.119 R)
• M3: 1,289,833 km (0.083 R)
• M4: 2,298,571 km (0.091 R)
• M5: 2,704,580 km (0.061 R)
• M6: 3,119,265 km (0.106 R)
• M7: 3,890,891 km (0.059 R)
• M8: 5,169,354 km (0.103 R)
• M9: 5,813,672 km (0.093 R)
• M10: 6,577,070 km (0.03 R)
• M11: 9,023,594 km (0.11 R)
• M12: 10,405,579 km (0.114 R)
• M13: 10,911,818 km (0.092 R)
• M14: 11,775,746 km (0.094 R)
• M15: 12,530,168 km (0.108 R)
• M16: 12,998,110 km (0.08 R)
• M17: 14,642,640 km (0.075 R)
• M18: 15,515,094 km (0.079 R)
• M19: 17,815,461 km (0.068 R)
• M20: 18,742,519 km (0.115 R)
• M21: 20,122,260 km (0.044 R)
• M22: 20,764,633 km (0.101 R)
• M23: 23,083,101 km (0.076 R)
• M24: 25,902,273 km (0.112 R)
• M25: 29,762,796 km (0.061 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 242.1

Radius: 5.2

Gravity: 8.95 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 7.9 AU - 11.24 AU

Year: 19421 Days

Day: 21.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,753,717 km

• M1: 65,524 km (0.1 R)
• M2: 398,230 km (0.11 R)
• M3: 1,695,841 km (0.104 R)
• M4: 2,117,408 km (0.099 R)
• M5: 3,696,115 km (0.067 R)
• M6: 7,261,481 km (0.096 R)
• M7: 7,732,564 km (0.107 R)
• M8: 10,186,269 km (0.106 R)
• M9: 13,876,848 km (0.083 R)
• M10: 14,803,158 km (0.101 R)
• M11: 15,281,572 km (0.109 R)
• M12: 21,502,151 km (0.088 R)
• M13: 25,068,414 km (0.095 R)
• M14: 28,692,722 km (0.095 R)
• M15: 37,838,388 km (0.03 R)
• M16: 46,680,520 km (0.025 R)
• M17: 50,111,996 km (0.108 R)
• M18: 50,418,073 km (0.112 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: 463 - 10,471 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit