🌌 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: 159.5

Radius: 14.7

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.48 AU - 0.62 AU

Year: 287 Days

Day: 14.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 26,270,967 km

• M1: 182,809 km (0.112 R)
• M2: 765,492 km (0.11 R)
• M3: 1,337,704 km (0.095 R)
• M4: 1,817,913 km (0.092 R)
• M5: 2,352,875 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.8

Radius: 11.7

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.71 AU - 0.87 AU

Year: 494 Days

Day: 12.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 26,270,967 km

• M1: 145,559 km (0.093 R)
• M2: 552,615 km (0.099 R)
• M3: 972,685 km (0.111 R)
• M4: 1,346,082 km (0.083 R)
• M5: 2,283,761 km (0.055 R)
• M6: 2,739,287 km (0.083 R)
• M7: 3,638,669 km (0.105 R)
• M8: 4,013,561 km (0.119 R)
• M9: 4,915,786 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721

Radius: 13.5

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.08 AU - 1.56 AU

Year: 1066 Days

Day: 5.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 170.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 26,270,967 km

• M1: 167,998 km (0.078 R)
• M2: 697,126 km (0.091 R)
• M3: 1,191,397 km (0.082 R)
• M4: 1,625,231 km (0.069 R)
• M5: 2,815,881 km (0.092 R)
• M6: 3,385,400 km (0.1 R)
• M7: 3,918,118 km (0.087 R)
• M8: 4,401,618 km (0.066 R)
• M9: 5,369,516 km (0.111 R)
• M10: 6,520,074 km (0.111 R)
• M11: 7,906,397 km (0.067 R)
• M12: 8,991,131 km (0.089 R)
• M13: 9,540,006 km (0.104 R)
• M14: 10,609,780 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.4

Radius: 10.4

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.24 AU - 1.78 AU

Year: 1304 Days

Day: 10.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,270,967 km

• M1: 129,402 km (0.062 R)
• M2: 484,099 km (0.098 R)
• M3: 813,663 km (0.094 R)
• M4: 1,835,416 km (0.061 R)
• M5: 2,422,738 km (0.079 R)
• M6: 2,772,946 km (0.092 R)
• M7: 3,437,460 km (0.062 R)
• M8: 4,332,654 km (0.081 R)
• M9: 4,680,319 km (0.119 R)
• M10: 5,264,798 km (0.085 R)
• M11: 5,603,787 km (0.094 R)
• M12: 6,536,829 km (0.089 R)
• M13: 6,995,944 km (0.077 R)
• M14: 8,250,921 km (0.056 R)
• M15: 8,866,217 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.6

Radius: 12.3

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.86 AU - 2.68 AU

Year: 2404 Days

Day: 10.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 26,270,967 km

• M1: 154,983 km (0.064 R)
• M2: 631,153 km (0.099 R)
• M3: 1,195,287 km (0.075 R)
• M4: 1,766,751 km (0.076 R)
• M5: 2,575,627 km (0.117 R)
• M6: 3,322,868 km (0.105 R)
• M7: 4,027,175 km (0.099 R)
• M8: 5,630,565 km (0.114 R)
• M9: 8,248,976 km (0.085 R)
• M10: 10,422,783 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.6

Radius: 12.1

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.28 AU - 2.74 AU

Year: 2795 Days

Day: 11.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 26,270,967 km

• M1: 152,590 km (0.1 R)
• M2: 766,839 km (0.113 R)
• M3: 1,611,319 km (0.111 R)
• M4: 3,529,463 km (0.034 R)
• M5: 3,989,775 km (0.075 R)
• M6: 5,564,293 km (0.081 R)
• M7: 7,487,224 km (0.104 R)
• M8: 10,652,715 km (0.043 R)
• M9: 12,236,208 km (0.066 R)
• M10: 12,874,542 km (0.057 R)
• M11: 14,119,047 km (0.108 R)
• M12: 15,233,252 km (0.085 R)
• M13: 16,514,707 km (0.093 R)
• M14: 16,957,517 km (0.083 R)
• M15: 17,465,103 km (0.119 R)
• M16: 20,093,986 km (0.07 R)
• M17: 20,598,879 km (0.119 R)
• M18: 21,568,273 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.5

Radius: 13.4

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.27 AU - 4.47 AU

Year: 6421 Days

Day: 12.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 26,270,967 km

• M1: 166,951 km (0.051 R)
• M2: 739,761 km (0.096 R)
• M3: 2,100,653 km (0.092 R)
• M4: 3,313,593 km (0.067 R)
• M5: 3,858,279 km (0.103 R)
• M6: 4,629,306 km (0.1 R)
• M7: 5,555,167 km (0.098 R)
• M8: 6,448,416 km (0.119 R)
• M9: 7,302,470 km (0.115 R)
• M10: 8,779,450 km (0.072 R)
• M11: 9,430,949 km (0.113 R)
• M12: 9,869,420 km (0.086 R)
• M13: 10,744,717 km (0.08 R)
• M14: 11,535,641 km (0.093 R)
• M15: 12,698,017 km (0.108 R)
• M16: 13,282,945 km (0.075 R)
• M17: 15,694,163 km (0.113 R)
• M18: 16,425,397 km (0.086 R)
• M19: 16,944,801 km (0.063 R)
• M20: 17,895,496 km (0.1 R)
• M21: 19,644,145 km (0.053 R)
• M22: 20,427,589 km (0.078 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: 245 - 12,427 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit