🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.6

Radius: 14.5

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.54 AU - 0.88 AU

Year: 392 Days

Day: 8.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 23,475,665 km

• M1: 180,265 km (0.119 R)
• M2: 777,161 km (0.09 R)
• M3: 1,335,011 km (0.112 R)
• M4: 1,964,370 km (0.074 R)
• M5: 2,658,055 km (0.113 R)
• M6: 3,114,927 km (0.114 R)
• M7: 4,704,105 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.3

Radius: 13.5

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.64 AU - 0.82 AU

Year: 409 Days

Day: 10.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 23,475,665 km

• M1: 167,998 km (0.096 R)
• M2: 687,103 km (0.092 R)
• M3: 1,155,494 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.9

Radius: 10.8

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.75 AU - 0.81 AU

Year: 452 Days

Day: 12.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 23,475,665 km

• M1: 136,284 km (0.109 R)
• M2: 558,748 km (0.104 R)
• M3: 1,166,115 km (0.119 R)
• M4: 1,638,845 km (0.074 R)
• M5: 2,330,735 km (0.079 R)
• M6: 2,927,032 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.1

Radius: 13.4

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.43 AU - 1.87 AU

Year: 1390 Days

Day: 8 Hours

Environment

Temp: -192 °C

Axial Tilt: 89.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,475,665 km

• M1: 172,486 km (0.105 R)
• M2: 687,253 km (0.093 R)
• M3: 1,113,158 km (0.096 R)
• M4: 1,587,233 km (0.067 R)
• M5: 2,424,383 km (0.085 R)
• M6: 3,497,149 km (0.078 R)
• M7: 4,299,293 km (0.03 R)
• M8: 6,086,240 km (0.097 R)
• M9: 6,650,074 km (0.028 R)
• M10: 8,176,272 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.2

Radius: 11.8

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.05 AU - 3.27 AU

Year: 2846 Days

Day: 13.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,475,665 km

• M1: 146,756 km (0.105 R)
• M2: 605,722 km (0.081 R)
• M3: 1,266,047 km (0.105 R)
• M4: 2,021,666 km (0.082 R)
• M5: 2,566,501 km (0.08 R)
• M6: 3,742,640 km (0.12 R)
• M7: 5,178,031 km (0.099 R)
• M8: 5,788,989 km (0.09 R)
• M9: 7,727,328 km (0.051 R)
• M10: 8,168,193 km (0.119 R)
• M11: 11,578,127 km (0.094 R)
• M12: 14,193,547 km (0.1 R)
• M13: 14,712,502 km (0.104 R)
• M14: 15,195,404 km (0.097 R)
• M15: 16,141,760 km (0.054 R)
• M16: 18,428,662 km (0.034 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.8

Radius: 13.5

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 3.97 AU - 4.13 AU

Year: 5347 Days

Day: 8.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 23,475,665 km

• M1: 169,943 km (0.099 R)
• M2: 615,146 km (0.084 R)
• M3: 1,049,579 km (0.03 R)
• M4: 1,520,812 km (0.105 R)
• M5: 2,107,834 km (0.036 R)
• M6: 2,982,533 km (0.063 R)
• M7: 3,426,090 km (0.078 R)
• M8: 5,056,857 km (0.08 R)
• M9: 8,276,652 km (0.102 R)
• M10: 8,785,584 km (0.113 R)
• M11: 9,431,547 km (0.099 R)
• M12: 11,077,423 km (0.115 R)
• M13: 13,345,476 km (0.055 R)
• M14: 15,091,284 km (0.03 R)
• M15: 18,170,008 km (0.113 R)
• M16: 20,771,216 km (0.081 R)
• M17: 21,645,466 km (0.098 R)
• M18: 22,195,537 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.9

Radius: 13.6

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 3.95 AU - 4.35 AU

Year: 5546 Days

Day: 13.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,475,665 km

• M1: 169,345 km (0.106 R)
• M2: 1,200,373 km (0.071 R)
• M3: 2,248,755 km (0.05 R)
• M4: 3,694,170 km (0.105 R)
• M5: 8,418,770 km (0.107 R)
• M6: 9,439,177 km (0.039 R)
• M7: 13,558,504 km (0.059 R)
• M8: 14,000,416 km (0.06 R)
• M9: 16,011,161 km (0.104 R)
• M10: 16,958,415 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.9

Radius: 11

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 4.57 AU - 5.73 AU

Year: 7667 Days

Day: 8.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 23,475,665 km

• M1: 138,976 km (0.115 R)
• M2: 622,178 km (0.111 R)
• M3: 1,281,007 km (0.087 R)
• M4: 2,379,055 km (0.118 R)
• M5: 3,475,607 km (0.108 R)
• M6: 4,596,993 km (0.077 R)
• M7: 6,635,414 km (0.084 R)
• M8: 9,982,816 km (0.1 R)
• M9: 15,242,078 km (0.12 R)
• M10: 15,771,954 km (0.068 R)
• M11: 17,150,797 km (0.05 R)
• M12: 20,850,203 km (0.037 R)
• M13: 22,305,491 km (0.081 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: 369 - 18,439 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit