🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.7

Radius: 13.7

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.69 AU - 0.69 AU

Year: 396 Days

Day: 7.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,800,596 km

• M1: 170,392 km (0.036 R)
• M2: 632,051 km (0.119 R)
• M3: 1,078,451 km (0.051 R)
• M4: 2,081,355 km (0.091 R)
• M5: 2,613,026 km (0.059 R)
• M6: 3,576,137 km (0.049 R)
• M7: 4,033,757 km (0.055 R)
• M8: 4,975,476 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.1

Radius: 9.9

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.35 AU - 1.41 AU

Year: 1119 Days

Day: 13 Hours

Environment

Temp: -179 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,800,596 km

• M1: 123,119 km (0.1 R)
• M2: 494,571 km (0.075 R)
• M3: 888,013 km (0.12 R)
• M4: 1,281,306 km (0.117 R)
• M5: 1,686,566 km (0.032 R)
• M6: 2,350,482 km (0.079 R)
• M7: 3,047,159 km (0.03 R)
• M8: 3,575,240 km (0.061 R)
• M9: 4,590,560 km (0.097 R)
• M10: 5,131,357 km (0.038 R)
• M11: 6,281,615 km (0.06 R)
• M12: 6,741,927 km (0.04 R)
• M13: 7,181,595 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.7

Radius: 13.7

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.99 AU - 3.43 AU

Year: 3970 Days

Day: 10.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,800,596 km

• M1: 173,534 km (0.111 R)
• M2: 682,166 km (0.074 R)
• M3: 1,330,374 km (0.052 R)
• M4: 1,892,114 km (0.106 R)
• M5: 2,321,759 km (0.111 R)
• M6: 2,757,388 km (0.103 R)
• M7: 3,418,760 km (0.119 R)
• M8: 5,340,494 km (0.094 R)
• M9: 8,183,303 km (0.11 R)
• M10: 9,036,459 km (0.093 R)
• M11: 9,519,960 km (0.101 R)
• M12: 9,984,311 km (0.09 R)
• M13: 11,036,284 km (0.029 R)
• M14: 12,794,059 km (0.095 R)
• M15: 17,433,837 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.3

Radius: 11.8

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.35 AU - 4.71 AU

Year: 5584 Days

Day: 9.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,800,596 km

• M1: 146,756 km (0.093 R)
• M2: 542,891 km (0.096 R)
• M3: 998,117 km (0.101 R)
• M4: 1,380,340 km (0.083 R)
• M5: 1,874,611 km (0.04 R)
• M6: 2,529,999 km (0.11 R)
• M7: 3,036,986 km (0.108 R)
• M8: 6,100,302 km (0.114 R)
• M9: 6,519,326 km (0.093 R)
• M10: 7,260,733 km (0.058 R)
• M11: 7,959,056 km (0.109 R)
• M12: 8,426,250 km (0.067 R)
• M13: 10,324,647 km (0.064 R)
• M14: 11,043,764 km (0.074 R)
• M15: 11,415,664 km (0.073 R)
• M16: 13,449,297 km (0.111 R)
• M17: 14,307,391 km (0.097 R)
• M18: 16,773,811 km (0.102 R)
• M19: 17,767,889 km (0.066 R)
• M20: 18,684,176 km (0.112 R)
• M21: 19,511,452 km (0.105 R)
• M22: 20,797,844 km (0.119 R)
• M23: 21,175,579 km (0.068 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 21.2

Radius: 3

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 5.24 AU - 7.26 AU

Year: 10785 Days

Day: 24.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,800,596 km

• M1: 76,145 km (0.067 R)
• M2: 1,275,322 km (0.091 R)
• M3: 1,447,509 km (0.06 R)
• M4: 2,840,116 km (0.078 R)
• M5: 4,743,898 km (0.109 R)
• M6: 6,281,315 km (0.117 R)
• M7: 7,415,716 km (0.031 R)
• M8: 8,335,743 km (0.071 R)
• M9: 8,616,538 km (0.092 R)
• M10: 14,270,739 km (0.066 R)
• M11: 15,827,156 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 598.1

Radius: 5.4

Gravity: 20.51 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 5.21 AU - 7.71 AU

Year: 11333 Days

Day: 24.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,800,596 km

• M1: 84,224 km (0.038 R)
• M2: 477,068 km (0.106 R)
• M3: 720,912 km (0.108 R)
• M4: 2,368,284 km (0.108 R)
• M5: 3,647,495 km (0.083 R)
• M6: 5,263,601 km (0.083 R)
• M7: 5,705,962 km (0.065 R)
• M8: 7,222,735 km (0.109 R)
• M9: 8,661,567 km (0.052 R)
• M10: 9,972,942 km (0.056 R)
• M11: 10,917,353 km (0.069 R)
• M12: 16,476,111 km (0.116 R)
• M13: 17,493,825 km (0.111 R)
• M14: 19,097,963 km (0.065 R)
• M15: 21,556,006 km (0.098 R)
• M16: 24,587,607 km (0.092 R)
• M17: 26,399,835 km (0.071 R)
• M18: 30,717,679 km (0.073 R)
• M19: 31,810,940 km (0.095 R)
• M20: 36,686,634 km (0.093 R)
• M21: 40,070,538 km (0.112 R)
• M22: 49,800,533 km (0.117 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 257 - 13,534 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit