🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.65 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.5

Radius: 12.4

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.16 AU - 1.42 AU

Year: 1011 Days

Day: 14.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,666,597 km

• M1: 154,235 km (0.111 R)
• M2: 870,360 km (0.1 R)
• M3: 1,273,078 km (0.118 R)
• M4: 1,861,147 km (0.107 R)
• M5: 2,434,406 km (0.117 R)
• M6: 3,027,113 km (0.118 R)
• M7: 3,730,223 km (0.049 R)
• M8: 4,759,606 km (0.086 R)
• M9: 5,320,897 km (0.071 R)
• M10: 5,733,488 km (0.098 R)
• M11: 6,301,960 km (0.068 R)
• M12: 6,740,880 km (0.082 R)
• M13: 7,836,535 km (0.116 R)
• M14: 9,667,762 km (0.073 R)
• M15: 10,506,707 km (0.086 R)
• M16: 10,993,499 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.5

Radius: 14.8

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.23 AU - 1.85 AU

Year: 1319 Days

Day: 7.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,666,597 km

• M1: 184,155 km (0.105 R)
• M2: 672,143 km (0.03 R)
• M3: 1,569,132 km (0.094 R)
• M4: 2,095,717 km (0.118 R)
• M5: 2,788,056 km (0.108 R)
• M6: 3,261,234 km (0.116 R)
• M7: 3,744,883 km (0.064 R)
• M8: 4,421,365 km (0.111 R)
• M9: 6,454,699 km (0.056 R)
• M10: 7,042,918 km (0.071 R)
• M11: 8,972,731 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.7

Radius: 12.2

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.32 AU - 1.78 AU

Year: 1332 Days

Day: 5.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,666,597 km

• M1: 152,141 km (0.109 R)
• M2: 581,188 km (0.048 R)
• M3: 1,049,130 km (0.119 R)
• M4: 1,502,561 km (0.075 R)
• M5: 1,915,002 km (0.092 R)
• M6: 2,752,601 km (0.107 R)
• M7: 3,803,825 km (0.117 R)
• M8: 4,900,527 km (0.04 R)
• M9: 5,338,250 km (0.12 R)
• M10: 5,734,236 km (0.062 R)
• M11: 6,938,798 km (0.11 R)
• M12: 7,738,548 km (0.053 R)
• M13: 8,869,059 km (0.105 R)
• M14: 10,374,164 km (0.109 R)
• M15: 11,857,576 km (0.047 R)
• M16: 12,805,279 km (0.09 R)
• M17: 13,599,194 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.5

Radius: 8.7

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.28 AU - 2.12 AU

Year: 1530 Days

Day: 5.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,666,597 km

• M1: 108,159 km (0.116 R)
• M2: 678,426 km (0.057 R)
• M3: 1,066,184 km (0.115 R)
• M4: 1,501,065 km (0.076 R)
• M5: 2,235,740 km (0.115 R)
• M6: 2,630,679 km (0.081 R)
• M7: 2,906,537 km (0.099 R)
• M8: 3,191,820 km (0.103 R)
• M9: 3,911,685 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.6

Radius: 8.9

Gravity: 10.08 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 4.43 AU - 5.21 AU

Year: 7304 Days

Day: 14.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,666,597 km

• M1: 110,852 km (0.05 R)
• M2: 626,815 km (0.076 R)
• M3: 1,065,286 km (0.043 R)
• M4: 1,361,939 km (0.085 R)
• M5: 1,875,209 km (0.083 R)
• M6: 2,194,451 km (0.106 R)
• M7: 3,133,926 km (0.1 R)
• M8: 4,595,347 km (0.098 R)
• M9: 5,981,820 km (0.068 R)
• M10: 8,280,093 km (0.05 R)
• M11: 12,219,453 km (0.077 R)
• M12: 13,809,379 km (0.105 R)
• M13: 26,796,719 km (0.119 R)
• M14: 29,365,314 km (0.086 R)
• M15: 30,156,687 km (0.113 R)
• M16: 35,652,015 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 598

Radius: 3.5

Gravity: 48.82 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 4.23 AU - 6.97 AU

Year: 9147 Days

Day: 23.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 61,666,597 km

• M1: 46,076 km (0.115 R)
• M2: 295,007 km (0.083 R)
• M3: 639,680 km (0.059 R)
• M4: 837,000 km (0.11 R)
• M5: 1,106,276 km (0.112 R)
• M6: 1,231,340 km (0.098 R)
• M7: 1,456,634 km (0.115 R)
• M8: 2,409,872 km (0.106 R)
• M9: 2,641,150 km (0.063 R)
• M10: 3,015,743 km (0.082 R)
• M11: 4,379,478 km (0.116 R)
• M12: 4,932,990 km (0.115 R)
• M13: 7,257,591 km (0.052 R)
• M14: 7,780,436 km (0.093 R)
• M15: 8,810,716 km (0.108 R)
• M16: 9,036,310 km (0.056 R)
• M17: 9,977,131 km (0.117 R)
• M18: 11,085,501 km (0.084 R)
• M19: 11,242,729 km (0.116 R)
• M20: 11,454,709 km (0.026 R)
• M21: 11,615,527 km (0.093 R)
• M22: 12,162,157 km (0.112 R)
• M23: 14,520,717 km (0.092 R)
• M24: 15,674,865 km (0.108 R)
• M25: 15,873,082 km (0.079 R)
• M26: 17,589,718 km (0.068 R)
• M27: 19,199,391 km (0.037 R)
• M28: 22,123,431 km (0.045 R)
• M29: 22,623,985 km (0.093 R)
• M30: 23,217,440 km (0.108 R)
• M31: 24,258,791 km (0.058 R)
• M32: 26,903,232 km (0.052 R)
• M33: 28,834,840 km (0.101 R)
• M34: 35,406,974 km (0.111 R)
• M35: 36,668,532 km (0.075 R)
• M36: 38,676,585 km (0.073 R)
• M37: 39,524,206 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.2

Radius: 3

Gravity: 60.58 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 7.61 AU - 8.89 AU

Year: 16357 Days

Day: 15.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 61,666,597 km

• M1: 37,250 km (0.117 R)
• M2: 131,048 km (0.087 R)
• M3: 1,277,566 km (0.11 R)
• M4: 2,912,671 km (0.054 R)
• M5: 4,971,586 km (0.077 R)
• M6: 5,766,400 km (0.062 R)
• M7: 7,880,517 km (0.116 R)
• M8: 11,152,970 km (0.061 R)
• M9: 13,084,727 km (0.106 R)
• M10: 14,164,076 km (0.102 R)
• M11: 15,301,169 km (0.085 R)
• M12: 16,268,918 km (0.12 R)
• M13: 19,846,102 km (0.055 R)
• M14: 22,282,004 km (0.103 R)
• M15: 26,772,035 km (0.08 R)
• M16: 26,878,100 km (0.042 R)
• M17: 29,622,323 km (0.109 R)
• M18: 30,078,148 km (0.061 R)
• M19: 30,538,461 km (0.091 R)
• M20: 31,591,480 km (0.109 R)
• M21: 35,659,644 km (0.049 R)
• M22: 39,236,978 km (0.069 R)
• M23: 45,415,819 km (0.102 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 459 - 18,775 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit