🌌 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: 591.7

Radius: 9.3

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.53 AU - 0.85 AU

Year: 403 Days

Day: 10.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,395,836 km

• M1: 115,789 km (0.086 R)
• M2: 419,921 km (0.094 R)
• M3: 733,179 km (0.096 R)
• M4: 1,177,335 km (0.11 R)
• M5: 1,673,252 km (0.111 R)
• M6: 2,050,538 km (0.102 R)
• M7: 2,356,914 km (0.107 R)
• M8: 2,723,429 km (0.072 R)
• M9: 3,419,658 km (0.084 R)
• M10: 4,019,396 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.8

Radius: 10.3

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.71 AU - 0.75 AU

Year: 438 Days

Day: 6.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,395,836 km

• M1: 128,056 km (0.093 R)
• M2: 476,020 km (0.094 R)
• M3: 952,789 km (0.098 R)
• M4: 1,296,415 km (0.094 R)
• M5: 1,680,283 km (0.089 R)
• M6: 2,514,591 km (0.087 R)
• M7: 3,042,073 km (0.12 R)
• M8: 3,385,998 km (0.113 R)
• M9: 3,820,131 km (0.106 R)
• M10: 4,249,328 km (0.116 R)
• M11: 5,333,912 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.5

Radius: 13.7

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.41 AU - 1.79 AU

Year: 1423 Days

Day: 9.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,395,836 km

• M1: 170,392 km (0.096 R)
• M2: 609,911 km (0.085 R)
• M3: 1,338,901 km (0.091 R)
• M4: 1,989,203 km (0.052 R)
• M5: 2,547,502 km (0.106 R)
• M6: 3,094,133 km (0.092 R)
• M7: 4,389,950 km (0.079 R)
• M8: 4,881,528 km (0.113 R)
• M9: 5,558,458 km (0.099 R)
• M10: 6,066,792 km (0.082 R)
• M11: 6,949,868 km (0.079 R)
• M12: 7,461,942 km (0.093 R)
• M13: 8,362,072 km (0.107 R)
• M14: 9,673,746 km (0.086 R)
• M15: 10,280,814 km (0.092 R)
• M16: 11,430,773 km (0.117 R)
• M17: 11,928,485 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.7

Radius: 11.8

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.37 AU - 2.14 AU

Year: 1627 Days

Day: 14.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,395,836 km

• M1: 146,756 km (0.086 R)
• M2: 514,168 km (0.115 R)
• M3: 964,009 km (0.07 R)
• M4: 1,378,395 km (0.062 R)
• M5: 1,999,226 km (0.104 R)
• M6: 2,690,817 km (0.093 R)
• M7: 3,536,194 km (0.119 R)
• M8: 4,012,514 km (0.09 R)
• M9: 4,589,663 km (0.096 R)
• M10: 6,386,632 km (0.093 R)
• M11: 7,148,983 km (0.073 R)
• M12: 7,524,922 km (0.075 R)
• M13: 8,523,339 km (0.105 R)
• M14: 9,320,546 km (0.037 R)
• M15: 9,934,047 km (0.102 R)
• M16: 11,206,227 km (0.113 R)
• M17: 12,700,560 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.9

Radius: 13.8

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 3.34 AU - 5.08 AU

Year: 6072 Days

Day: 11.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,395,836 km

• M1: 171,888 km (0.114 R)
• M2: 741,257 km (0.113 R)
• M3: 1,572,124 km (0.088 R)
• M4: 3,477,552 km (0.099 R)
• M5: 7,704,440 km (0.108 R)
• M6: 8,953,433 km (0.095 R)
• M7: 11,611,488 km (0.08 R)
• M8: 14,870,178 km (0.109 R)
• M9: 17,604,827 km (0.079 R)
• M10: 20,519,592 km (0.115 R)
• M11: 22,981,973 km (0.087 R)
• M12: 25,716,472 km (0.115 R)
• M13: 27,372,970 km (0.1 R)
• M14: 30,260,059 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 124.6

Radius: 7

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 6.46 AU - 6.98 AU

Year: 12245 Days

Day: 20.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,395,836 km

• M1: 100,679 km (0.059 R)
• M2: 915,689 km (0.069 R)
• M3: 1,473,838 km (0.087 R)
• M4: 2,302,610 km (0.084 R)
• M5: 2,781,922 km (0.092 R)
• M6: 3,430,130 km (0.059 R)
• M7: 4,031,962 km (0.097 R)
• M8: 7,618,571 km (0.087 R)
• M9: 8,061,530 km (0.089 R)
• M10: 12,496,060 km (0.053 R)
• M11: 13,269,182 km (0.077 R)
• M12: 14,967,566 km (0.114 R)
• M13: 17,492,928 km (0.086 R)
• M14: 18,004,104 km (0.071 R)
• M15: 18,989,655 km (0.064 R)
• M16: 20,995,912 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.7

Radius: 4

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 7.42 AU - 8.9 AU

Year: 16385 Days

Day: 20.2 Hours

Environment

Temp: -242 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,395,836 km

• M1: 49,816 km (0.054 R)
• M2: 285,732 km (0.115 R)
• M3: 446,250 km (0.117 R)
• M4: 1,561,503 km (0.052 R)
• M5: 2,011,044 km (0.063 R)
• M6: 2,372,173 km (0.078 R)
• M7: 3,080,968 km (0.082 R)
• M8: 3,409,186 km (0.086 R)
• M9: 4,508,281 km (0.09 R)
• M10: 4,931,045 km (0.094 R)
• M11: 5,613,810 km (0.116 R)
• M12: 5,946,964 km (0.067 R)
• M13: 7,341,067 km (0.088 R)
• M14: 11,700,947 km (0.119 R)
• M15: 13,168,353 km (0.11 R)
• M16: 14,640,844 km (0.119 R)
• M17: 20,197,059 km (0.102 R)
• M18: 22,901,040 km (0.108 R)
• M19: 25,181,959 km (0.101 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: 250 - 19,411 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit