🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.4

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.46 AU - 0.58 AU

Year: 246 Days

Day: 18.8 Hours

Environment

Temp: -118 °C

Axial Tilt: 27.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 88,934,704 km

• M1: 373,546 km (0.07 R)
• M2: 395,986 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.6

Radius: 11.9

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.28 AU - 1.6 AU

Year: 1134 Days

Day: 8.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 88,934,704 km

• M1: 148,251 km (0.064 R)
• M2: 602,281 km (0.082 R)
• M3: 1,009,486 km (0.071 R)
• M4: 2,612,727 km (0.111 R)
• M5: 3,508,220 km (0.03 R)
• M6: 4,978,916 km (0.091 R)
• M7: 7,639,215 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.6

Radius: 8.4

Gravity: 7.53 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.36 AU - 1.64 AU

Year: 1205 Days

Day: 9.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 88,934,704 km

• M1: 104,569 km (0.077 R)
• M2: 374,892 km (0.026 R)
• M3: 775,366 km (0.051 R)
• M4: 1,048,681 km (0.114 R)
• M5: 1,411,007 km (0.113 R)
• M6: 1,697,936 km (0.059 R)
• M7: 2,117,259 km (0.08 R)
• M8: 2,628,734 km (0.081 R)
• M9: 2,947,078 km (0.059 R)
• M10: 3,276,792 km (0.076 R)
• M11: 4,060,385 km (0.105 R)
• M12: 4,944,359 km (0.073 R)
• M13: 5,233,083 km (0.107 R)
• M14: 5,553,522 km (0.078 R)
• M15: 5,865,882 km (0.049 R)
• M16: 7,582,069 km (0.094 R)
• M17: 7,914,924 km (0.05 R)
• M18: 8,500,450 km (0.1 R)
• M19: 9,143,123 km (0.112 R)
• M20: 9,877,947 km (0.077 R)
• M21: 10,747,261 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.6

Radius: 12.8

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.56 AU - 2.56 AU

Year: 1940 Days

Day: 6.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 88,934,704 km

• M1: 161,117 km (0.047 R)
• M2: 740,210 km (0.119 R)
• M3: 1,645,277 km (0.11 R)
• M4: 2,059,514 km (0.074 R)
• M5: 2,713,855 km (0.045 R)
• M6: 3,239,392 km (0.049 R)
• M7: 4,689,744 km (0.085 R)
• M8: 6,057,966 km (0.077 R)
• M9: 7,039,178 km (0.107 R)
• M10: 8,123,613 km (0.091 R)
• M11: 10,352,322 km (0.105 R)
• M12: 11,463,236 km (0.072 R)
• M13: 12,962,057 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.9

Radius: 13.7

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.01 AU - 2.61 AU

Year: 2303 Days

Day: 10.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,934,704 km

• M1: 175,030 km (0.117 R)
• M2: 609,312 km (0.093 R)
• M3: 1,208,302 km (0.033 R)
• M4: 1,666,969 km (0.082 R)
• M5: 2,219,284 km (0.069 R)
• M6: 2,833,084 km (0.095 R)
• M7: 3,472,167 km (0.084 R)
• M8: 3,919,464 km (0.085 R)
• M9: 4,466,394 km (0.042 R)
• M10: 5,019,607 km (0.058 R)
• M11: 6,060,509 km (0.111 R)
• M12: 6,579,165 km (0.083 R)
• M13: 8,253,614 km (0.037 R)
• M14: 9,325,034 km (0.07 R)
• M15: 9,876,900 km (0.119 R)
• M16: 10,671,265 km (0.115 R)
• M17: 12,511,319 km (0.102 R)
• M18: 14,057,562 km (0.088 R)
• M19: 14,646,230 km (0.109 R)
• M20: 15,393,172 km (0.085 R)
• M21: 16,661,164 km (0.07 R)
• M22: 17,218,117 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.3

Radius: 9.4

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.55 AU - 3.49 AU

Year: 3443 Days

Day: 7.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 88,934,704 km

• M1: 116,986 km (0.096 R)
• M2: 1,582,895 km (0.116 R)
• M3: 2,418,399 km (0.109 R)
• M4: 3,112,832 km (0.098 R)
• M5: 8,389,000 km (0.087 R)
• M6: 9,004,745 km (0.034 R)
• M7: 9,713,390 km (0.032 R)
• M8: 11,809,106 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 963.7

Radius: 5.9

Gravity: 27.68 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 7.82 AU - 12.54 AU

Year: 21307 Days

Day: 19.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 88,934,704 km

• M1: 147,204 km (0.109 R)
• M2: 479,910 km (0.101 R)
• M3: 1,058,854 km (0.116 R)
• M4: 1,332,767 km (0.117 R)
• M5: 1,529,489 km (0.087 R)
• M6: 2,003,265 km (0.115 R)
• M7: 4,150,593 km (0.118 R)
• M8: 7,138,511 km (0.117 R)
• M9: 7,591,494 km (0.112 R)
• M10: 8,554,605 km (0.099 R)
• M11: 8,893,145 km (0.067 R)
• M12: 9,182,018 km (0.116 R)
• M13: 10,786,006 km (0.111 R)
• M14: 17,321,788 km (0.115 R)
• M15: 27,645,986 km (0.092 R)
• M16: 30,683,570 km (0.083 R)
• M17: 32,147,386 km (0.027 R)
• M18: 32,691,024 km (0.067 R)
• M19: 40,483,577 km (0.067 R)
• M20: 42,242,699 km (0.05 R)
• M21: 45,741,195 km (0.087 R)
• M22: 47,648,567 km (0.074 R)
• M23: 70,860,173 km (0.114 R)
• M24: 85,254,480 km (0.1 R)
• M25: 86,557,029 km (0.075 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 372 - 16,383 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit