🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.96 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.06

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.86 AU - 1.98 AU

Year: 1178 Days

Day: 17.3 Hours

Environment

Temp: -111 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.89 AU - 2.07 AU

Year: 1234 Days

Day: 21.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 56,188,294 km

• M1: 44,730 km (0.051 R)
• M2: 129,851 km (0.119 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.76 AU - 2.7 AU

Year: 1475 Days

Day: 29.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,188,294 km

• M1: 78,389 km (0.113 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.25 AU - 2.27 AU

Year: 1505 Days

Day: 24.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 42.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740

Radius: 11.8

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.48 AU - 3.7 AU

Year: 2406 Days

Day: 12.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,188,294 km

• M1: 147,055 km (0.089 R)
• M2: 725,699 km (0.117 R)
• M3: 1,496,128 km (0.104 R)
• M4: 2,182,783 km (0.085 R)
• M5: 2,770,702 km (0.104 R)
• M6: 3,391,533 km (0.073 R)
• M7: 4,043,780 km (0.109 R)
• M8: 4,538,051 km (0.114 R)
• M9: 5,072,415 km (0.116 R)
• M10: 5,824,743 km (0.041 R)
• M11: 7,105,450 km (0.038 R)
• M12: 8,631,797 km (0.088 R)
• M13: 10,105,336 km (0.11 R)
• M14: 10,747,261 km (0.102 R)
• M15: 11,822,570 km (0.106 R)
• M16: 14,419,888 km (0.098 R)
• M17: 15,380,755 km (0.115 R)
• M18: 16,027,916 km (0.056 R)
• M19: 16,486,433 km (0.046 R)
• M20: 16,901,418 km (0.072 R)
• M21: 17,270,326 km (0.099 R)
• M22: 19,025,259 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.2

Radius: 11.6

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.42 AU - 5.08 AU

Year: 4585 Days

Day: 15 Hours

Environment

Temp: -162 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,188,294 km

• M1: 144,212 km (0.036 R)
• M2: 509,381 km (0.115 R)
• M3: 967,150 km (0.112 R)
• M4: 1,359,994 km (0.062 R)
• M5: 2,164,831 km (0.077 R)
• M6: 2,911,923 km (0.105 R)
• M7: 3,304,767 km (0.08 R)
• M8: 3,778,244 km (0.045 R)
• M9: 5,052,219 km (0.091 R)
• M10: 5,653,154 km (0.109 R)
• M11: 6,660,097 km (0.09 R)
• M12: 7,067,303 km (0.062 R)
• M13: 7,709,227 km (0.1 R)
• M14: 8,946,252 km (0.081 R)
• M15: 10,177,592 km (0.074 R)
• M16: 11,518,886 km (0.111 R)
• M17: 12,408,695 km (0.082 R)
• M18: 13,026,983 km (0.098 R)
• M19: 14,158,391 km (0.079 R)
• M20: 18,010,686 km (0.05 R)
• M21: 20,176,863 km (0.064 R)
• M22: 21,177,075 km (0.079 R)
• M23: 22,891,765 km (0.098 R)
• M24: 24,616,778 km (0.085 R)
• M25: 27,020,816 km (0.112 R)
• M26: 29,125,509 km (0.05 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 175.2

Radius: 4.4

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 8.76 AU - 13.78 AU

Year: 16758 Days

Day: 17.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,188,294 km

• M1: 54,753 km (0.083 R)
• M2: 214,374 km (0.104 R)
• M3: 2,902,647 km (0.055 R)
• M4: 4,093,147 km (0.109 R)
• M5: 4,255,012 km (0.104 R)
• M6: 4,477,464 km (0.109 R)
• M7: 4,737,017 km (0.099 R)
• M8: 6,013,535 km (0.09 R)
• M9: 10,124,784 km (0.064 R)
• M10: 12,047,117 km (0.068 R)
• M11: 17,782,100 km (0.028 R)
• M12: 19,780,130 km (0.069 R)
• M13: 39,182,973 km (0.076 R)
• M14: 39,669,017 km (0.114 R)
• M15: 41,906,104 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 125.2

Radius: 7.8

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 15.68 AU - 17.33 AU

Year: 29687 Days

Day: 18.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,188,294 km

• M1: 97,089 km (0.092 R)
• M2: 815,757 km (0.078 R)
• M3: 1,328,279 km (0.112 R)
• M4: 3,248,368 km (0.083 R)
• M5: 4,619,133 km (0.11 R)
• M6: 5,883,535 km (0.064 R)
• M7: 7,320,871 km (0.083 R)
• M8: 8,686,251 km (0.103 R)
• M9: 10,539,469 km (0.105 R)
• M10: 12,954,278 km (0.09 R)
• M11: 22,278,115 km (0.081 R)
• M12: 27,542,763 km (0.063 R)
• M13: 48,798,377 km (0.093 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: 461 - 13,613 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit