🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.6

Radius: 13.8

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.46 AU - 0.64 AU

Year: 287 Days

Day: 5.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 20,077,028 km

• M1: 172,038 km (0.055 R)
• M2: 603,478 km (0.106 R)
• M3: 1,501,663 km (0.09 R)
• M4: 1,969,306 km (0.066 R)
• M5: 2,686,778 km (0.093 R)
• M6: 3,317,632 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.5

Radius: 13

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.63 AU - 1.05 AU

Year: 541 Days

Day: 6.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 20,077,028 km

• M1: 163,062 km (0.034 R)
• M2: 663,317 km (0.097 R)
• M3: 1,154,297 km (0.107 R)
• M4: 1,797,418 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.2

Radius: 12.5

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.76 AU - 1.24 AU

Year: 703 Days

Day: 6.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,077,028 km

• M1: 155,432 km (0.07 R)
• M2: 871,856 km (0.089 R)
• M3: 1,412,503 km (0.049 R)
• M4: 2,317,869 km (0.109 R)
• M5: 3,618,324 km (0.11 R)
• M6: 4,428,995 km (0.044 R)
• M7: 4,828,421 km (0.116 R)
• M8: 5,755,778 km (0.052 R)
• M9: 6,715,598 km (0.049 R)
• M10: 7,665,844 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.9

Radius: 12.1

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.18 AU - 1.76 AU

Year: 1253 Days

Day: 8.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,077,028 km

• M1: 151,243 km (0.1 R)
• M2: 1,161,627 km (0.073 R)
• M3: 1,612,216 km (0.047 R)
• M4: 2,148,674 km (0.084 R)
• M5: 4,268,476 km (0.09 R)
• M6: 4,868,513 km (0.096 R)
• M7: 5,305,788 km (0.108 R)
• M8: 5,873,661 km (0.093 R)
• M9: 8,946,701 km (0.077 R)
• M10: 10,204,220 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.6

Radius: 12.4

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.8 AU - 2.76 AU

Year: 2420 Days

Day: 12.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 20,077,028 km

• M1: 154,684 km (0.105 R)
• M2: 582,235 km (0.092 R)
• M3: 1,075,010 km (0.113 R)
• M4: 2,072,678 km (0.09 R)
• M5: 2,717,445 km (0.106 R)
• M6: 3,134,823 km (0.067 R)
• M7: 4,450,387 km (0.087 R)
• M8: 5,368,170 km (0.08 R)
• M9: 6,255,435 km (0.043 R)
• M10: 6,747,762 km (0.04 R)
• M11: 7,321,918 km (0.051 R)
• M12: 8,981,856 km (0.038 R)
• M13: 9,643,528 km (0.097 R)
• M14: 11,289,553 km (0.067 R)
• M15: 14,011,486 km (0.106 R)
• M16: 14,857,013 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.6

Radius: 12.7

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.49 AU - 2.53 AU

Year: 2795 Days

Day: 14.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,077,028 km

• M1: 158,723 km (0.096 R)
• M2: 638,484 km (0.111 R)
• M3: 1,141,731 km (0.108 R)
• M4: 1,565,991 km (0.092 R)
• M5: 2,133,714 km (0.039 R)
• M6: 2,661,645 km (0.107 R)
• M7: 3,512,857 km (0.113 R)
• M8: 3,927,243 km (0.081 R)
• M9: 4,394,587 km (0.092 R)
• M10: 5,188,353 km (0.026 R)
• M11: 5,704,316 km (0.043 R)
• M12: 6,384,388 km (0.078 R)
• M13: 6,785,161 km (0.095 R)
• M14: 8,182,256 km (0.086 R)
• M15: 9,383,975 km (0.101 R)
• M16: 9,798,062 km (0.113 R)
• M17: 11,617,471 km (0.083 R)
• M18: 12,055,195 km (0.05 R)
• M19: 12,879,180 km (0.101 R)
• M20: 13,961,520 km (0.115 R)
• M21: 15,577,626 km (0.114 R)

Asteroid Belt

Center: 4.66 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 32.4

Radius: 3.2

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 6.5 AU - 7.1 AU

Year: 12464 Days

Day: 18.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,077,028 km

• M1: 44,580 km (0.088 R)
• M2: 220,058 km (0.12 R)
• M3: 779,704 km (0.072 R)
• M4: 1,990,100 km (0.12 R)
• M5: 2,146,729 km (0.07 R)
• M6: 3,373,432 km (0.059 R)
• M7: 6,452,007 km (0.091 R)
• M8: 7,644,002 km (0.113 R)
• M9: 8,594,846 km (0.108 R)
• M10: 9,621,836 km (0.078 R)
• M11: 15,189,121 km (0.077 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 15,636 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit