🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.4

Radius: 12.9

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.73 AU - 1.01 AU

Year: 532 Days

Day: 10.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,140,594 km

• M1: 160,519 km (0.113 R)
• M2: 564,283 km (0.034 R)
• M3: 1,159,832 km (0.061 R)
• M4: 1,574,518 km (0.085 R)
• M5: 2,004,611 km (0.027 R)
• M6: 2,478,238 km (0.087 R)
• M7: 3,281,280 km (0.082 R)
• M8: 3,726,483 km (0.079 R)
• M9: 4,134,736 km (0.089 R)
• M10: 4,754,220 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.6

Radius: 10

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.82 AU - 1.08 AU

Year: 607 Days

Day: 12.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 166.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,140,594 km

• M1: 124,465 km (0.09 R)
• M2: 501,901 km (0.054 R)
• M3: 911,350 km (0.083 R)
• M4: 1,244,056 km (0.054 R)
• M5: 1,589,328 km (0.075 R)
• M6: 2,234,543 km (0.066 R)
• M7: 2,607,341 km (0.048 R)
• M8: 3,181,947 km (0.092 R)
• M9: 3,546,816 km (0.085 R)
• M10: 4,503,644 km (0.053 R)
• M11: 5,190,298 km (0.092 R)
• M12: 5,679,782 km (0.091 R)
• M13: 6,899,155 km (0.075 R)
• M14: 7,290,353 km (0.117 R)
• M15: 7,719,250 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400

Radius: 14.4

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.92 AU - 1 AU

Year: 617 Days

Day: 7.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,140,594 km

• M1: 179,069 km (0.119 R)
• M2: 686,205 km (0.088 R)
• M3: 1,162,824 km (0.1 R)
• M4: 2,106,787 km (0.058 R)
• M5: 2,899,656 km (0.032 R)
• M6: 3,529,762 km (0.089 R)
• M7: 4,017,451 km (0.098 R)
• M8: 4,728,340 km (0.117 R)
• M9: 5,898,644 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.5

Radius: 11

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1 AU - 1.64 AU

Year: 995 Days

Day: 11.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,140,594 km

• M1: 141,071 km (0.115 R)
• M2: 580,440 km (0.066 R)
• M3: 980,764 km (0.054 R)
• M4: 1,400,834 km (0.025 R)
• M5: 1,813,874 km (0.036 R)
• M6: 2,287,202 km (0.1 R)
• M7: 2,991,509 km (0.063 R)
• M8: 3,701,051 km (0.081 R)
• M9: 4,353,298 km (0.089 R)
• M10: 4,724,600 km (0.118 R)
• M11: 5,080,643 km (0.088 R)
• M12: 5,628,769 km (0.066 R)
• M13: 6,091,177 km (0.087 R)
• M14: 6,888,384 km (0.096 R)
• M15: 7,632,783 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.1

Radius: 10.1

Gravity: 8.37 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.95 AU - 4.33 AU

Year: 4556 Days

Day: 12.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,140,594 km

• M1: 125,662 km (0.069 R)
• M2: 779,106 km (0.061 R)
• M3: 1,617,003 km (0.092 R)
• M4: 2,527,306 km (0.095 R)
• M5: 3,184,191 km (0.119 R)
• M6: 4,184,552 km (0.103 R)
• M7: 4,757,811 km (0.116 R)
• M8: 10,514,935 km (0.085 R)
• M9: 12,008,221 km (0.096 R)
• M10: 13,061,988 km (0.077 R)
• M11: 14,395,504 km (0.115 R)
• M12: 14,840,857 km (0.097 R)
• M13: 20,365,207 km (0.066 R)
• M14: 20,714,817 km (0.057 R)
• M15: 21,570,667 km (0.109 R)
• M16: 22,598,703 km (0.086 R)
• M17: 25,797,255 km (0.094 R)
• M18: 26,289,283 km (0.064 R)
• M19: 27,039,217 km (0.07 R)
• M20: 28,320,523 km (0.08 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 473.4

Radius: 3.6

Gravity: 36.53 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 8.47 AU - 8.65 AU

Year: 16429 Days

Day: 17.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,140,594 km

• M1: 71,657 km (0.099 R)
• M2: 295,456 km (0.105 R)
• M3: 560,244 km (0.085 R)
• M4: 809,923 km (0.083 R)
• M5: 1,045,540 km (0.063 R)
• M6: 1,297,911 km (0.108 R)
• M7: 1,497,624 km (0.08 R)
• M8: 1,818,362 km (0.1 R)
• M9: 3,331,395 km (0.091 R)
• M10: 5,672,153 km (0.102 R)
• M11: 9,854,311 km (0.094 R)
• M12: 10,679,044 km (0.066 R)
• M13: 14,787,750 km (0.074 R)
• M14: 17,227,990 km (0.105 R)
• M15: 17,383,871 km (0.106 R)
• M16: 23,647,683 km (0.062 R)
• M17: 29,670,194 km (0.058 R)
• M18: 33,636,034 km (0.103 R)
• M19: 54,525,133 km (0.111 R)
• M20: 57,427,930 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 360.7

Radius: 3.1

Gravity: 37.53 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 9.53 AU - 10.21 AU

Year: 20342 Days

Day: 16.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,140,594 km

• M1: 38,596 km (0.118 R)
• M2: 212,579 km (0.093 R)
• M3: 317,596 km (0.109 R)
• M4: 764,894 km (0.076 R)
• M5: 985,850 km (0.1 R)
• M6: 1,553,125 km (0.049 R)
• M7: 3,339,772 km (0.092 R)
• M8: 5,401,082 km (0.027 R)
• M9: 7,036,186 km (0.065 R)
• M10: 12,728,236 km (0.036 R)
• M11: 16,936,424 km (0.119 R)
• M12: 19,912,075 km (0.042 R)
• M13: 23,999,238 km (0.076 R)
• M14: 24,197,306 km (0.106 R)
• M15: 36,584,458 km (0.04 R)
• M16: 45,009,811 km (0.097 R)
• M17: 52,780,522 km (0.075 R)
• M18: 59,387,662 km (0.109 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 153 - 17,518 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit