🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.2

Radius: 14.4

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.52 AU - 0.68 AU

Year: 327 Days

Day: 10.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,722,864 km

• M1: 179,069 km (0.059 R)
• M2: 749,037 km (0.12 R)
• M3: 1,354,010 km (0.096 R)
• M4: 1,985,762 km (0.076 R)
• M5: 2,528,054 km (0.095 R)
• M6: 3,343,064 km (0.08 R)
• M7: 3,929,786 km (0.086 R)
• M8: 5,130,758 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.9

Radius: 14.6

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.59 AU - 0.61 AU

Year: 327 Days

Day: 12.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,722,864 km

• M1: 181,911 km (0.091 R)
• M2: 712,834 km (0.113 R)
• M3: 1,200,822 km (0.038 R)
• M4: 1,665,323 km (0.065 R)
• M5: 2,168,571 km (0.041 R)
• M6: 2,667,330 km (0.118 R)
• M7: 3,233,259 km (0.045 R)
• M8: 4,101,076 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.2

Radius: 14

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.66 AU - 0.66 AU

Year: 377 Days

Day: 6.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 16,722,864 km

• M1: 174,132 km (0.112 R)
• M2: 639,830 km (0.063 R)
• M3: 1,099,395 km (0.081 R)
• M4: 1,696,739 km (0.044 R)
• M5: 2,145,981 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.7

Radius: 8.5

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.66 AU - 0.68 AU

Year: 385 Days

Day: 11.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 16,722,864 km

• M1: 105,766 km (0.106 R)
• M2: 432,188 km (0.081 R)
• M3: 770,878 km (0.119 R)
• M4: 1,059,751 km (0.088 R)
• M5: 1,422,227 km (0.102 R)
• M6: 1,810,433 km (0.119 R)
• M7: 2,220,032 km (0.114 R)
• M8: 2,503,520 km (0.113 R)
• M9: 2,801,669 km (0.069 R)
• M10: 3,083,362 km (0.092 R)
• M11: 3,448,680 km (0.072 R)
• M12: 3,948,785 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.5

Radius: 13.9

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.8 AU - 1.04 AU

Year: 620 Days

Day: 7.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 16,722,864 km

• M1: 172,935 km (0.082 R)
• M2: 618,886 km (0.045 R)
• M3: 1,121,535 km (0.079 R)
• M4: 1,564,644 km (0.099 R)
• M5: 2,318,318 km (0.083 R)
• M6: 2,952,015 km (0.085 R)
• M7: 3,809,959 km (0.09 R)
• M8: 4,367,211 km (0.03 R)
• M9: 5,235,327 km (0.075 R)
• M10: 5,683,373 km (0.107 R)
• M11: 6,333,974 km (0.088 R)
• M12: 7,119,662 km (0.099 R)
• M13: 7,693,968 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.8

Radius: 15

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.17 AU - 1.63 AU

Year: 1164 Days

Day: 9.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 16,722,864 km

• M1: 187,895 km (0.078 R)
• M2: 730,337 km (0.081 R)
• M3: 1,280,408 km (0.101 R)
• M4: 1,860,100 km (0.092 R)
• M5: 2,328,341 km (0.077 R)
• M6: 2,976,399 km (0.065 R)
• M7: 4,469,685 km (0.103 R)
• M8: 5,557,112 km (0.109 R)
• M9: 6,038,967 km (0.06 R)
• M10: 6,658,601 km (0.073 R)
• M11: 7,462,839 km (0.089 R)
• M12: 8,026,225 km (0.099 R)
• M13: 8,697,022 km (0.112 R)
• M14: 9,293,768 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.9

Radius: 10.5

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.58 AU - 2.24 AU

Year: 1855 Days

Day: 12.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 16,722,864 km

• M1: 130,599 km (0.099 R)
• M2: 483,201 km (0.105 R)
• M3: 835,953 km (0.12 R)
• M4: 1,544,000 km (0.118 R)
• M5: 2,058,766 km (0.12 R)
• M6: 2,397,007 km (0.079 R)
• M7: 2,861,059 km (0.098 R)
• M8: 3,219,496 km (0.047 R)
• M9: 3,750,419 km (0.099 R)
• M10: 4,259,650 km (0.033 R)
• M11: 4,857,592 km (0.069 R)
• M12: 5,188,204 km (0.118 R)
• M13: 6,044,053 km (0.026 R)
• M14: 7,328,351 km (0.106 R)
• M15: 7,974,165 km (0.113 R)
• M16: 8,373,442 km (0.084 R)
• M17: 8,753,869 km (0.103 R)
• M18: 9,894,852 km (0.064 R)
• M19: 10,832,083 km (0.052 R)
• M20: 11,437,804 km (0.053 R)
• M21: 12,510,720 km (0.047 R)
• M22: 13,135,291 km (0.116 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 19,638 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit