🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.5 AU - 0.7 AU

Year: 300 Days

Day: 29.9 Hours

Environment

Temp: -127 °C

Axial Tilt: 41.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 37,346,658 km

• M1: 514,916 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.2

Radius: 8.3

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.7 AU - 1.14 AU

Year: 570 Days

Day: 10.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,346,658 km

• M1: 104,270 km (0.096 R)
• M2: 507,885 km (0.083 R)
• M3: 1,498,372 km (0.118 R)
• M4: 1,777,073 km (0.089 R)
• M5: 2,157,800 km (0.089 R)
• M6: 2,544,361 km (0.107 R)
• M7: 2,976,549 km (0.063 R)
• M8: 3,238,644 km (0.063 R)
• M9: 3,575,838 km (0.106 R)
• M10: 4,953,185 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.4

Radius: 9.4

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.68 AU - 2.68 AU

Year: 2078 Days

Day: 10.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,346,658 km

• M1: 116,836 km (0.053 R)
• M2: 413,339 km (0.111 R)
• M3: 2,016,878 km (0.082 R)
• M4: 2,404,636 km (0.044 R)
• M5: 2,868,390 km (0.082 R)
• M6: 3,942,652 km (0.049 R)
• M7: 4,443,954 km (0.061 R)
• M8: 5,787,493 km (0.105 R)
• M9: 6,646,783 km (0.046 R)
• M10: 7,383,553 km (0.102 R)
• M11: 9,254,274 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.1

Radius: 10.3

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.16 AU - 2.9 AU

Year: 2598 Days

Day: 10 Hours

Environment

Temp: -199 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,346,658 km

• M1: 128,056 km (0.07 R)
• M2: 480,658 km (0.056 R)
• M3: 855,550 km (0.074 R)
• M4: 1,336,507 km (0.119 R)
• M5: 1,956,142 km (0.113 R)
• M6: 3,014,397 km (0.102 R)
• M7: 3,707,933 km (0.117 R)
• M8: 4,227,187 km (0.106 R)
• M9: 4,592,505 km (0.03 R)
• M10: 5,072,864 km (0.1 R)
• M11: 5,662,728 km (0.091 R)
• M12: 6,408,025 km (0.079 R)
• M13: 6,950,018 km (0.058 R)
• M14: 8,028,619 km (0.115 R)
• M15: 8,830,314 km (0.071 R)
• M16: 9,981,320 km (0.075 R)
• M17: 10,868,285 km (0.079 R)
• M18: 12,534,955 km (0.098 R)
• M19: 14,365,734 km (0.117 R)
• M20: 18,043,448 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.3

Radius: 14.9

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.81 AU - 3.03 AU

Year: 3222 Days

Day: 10 Hours

Environment

Temp: -205 °C

Axial Tilt: 152.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,346,658 km

• M1: 186,100 km (0.12 R)
• M2: 677,230 km (0.07 R)
• M3: 1,150,258 km (0.104 R)
• M4: 1,997,431 km (0.096 R)
• M5: 3,290,555 km (0.091 R)
• M6: 4,098,682 km (0.101 R)
• M7: 5,774,478 km (0.099 R)
• M8: 6,860,110 km (0.094 R)
• M9: 9,513,228 km (0.066 R)
• M10: 13,319,596 km (0.109 R)
• M11: 14,116,354 km (0.084 R)
• M12: 16,812,856 km (0.086 R)
• M13: 19,772,799 km (0.06 R)
• M14: 21,544,487 km (0.067 R)
• M15: 24,507,722 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.7

Radius: 11.9

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.18 AU - 3.42 AU

Year: 3871 Days

Day: 10.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,346,658 km

• M1: 148,102 km (0.071 R)
• M2: 563,834 km (0.103 R)
• M3: 1,858,754 km (0.073 R)
• M4: 2,398,652 km (0.108 R)
• M5: 2,803,165 km (0.108 R)
• M6: 3,460,947 km (0.119 R)
• M7: 4,813,910 km (0.077 R)
• M8: 5,424,868 km (0.049 R)
• M9: 6,362,547 km (0.075 R)
• M10: 8,220,852 km (0.118 R)
• M11: 9,513,078 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.8

Radius: 13.3

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 3.38 AU - 4.64 AU

Year: 5185 Days

Day: 9.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,346,658 km

• M1: 165,455 km (0.111 R)
• M2: 924,066 km (0.089 R)
• M3: 1,472,492 km (0.102 R)
• M4: 1,935,946 km (0.085 R)
• M5: 3,339,174 km (0.055 R)
• M6: 4,134,137 km (0.074 R)
• M7: 4,776,510 km (0.104 R)
• M8: 5,241,161 km (0.1 R)
• M9: 7,230,514 km (0.046 R)
• M10: 8,528,425 km (0.093 R)
• M11: 9,075,205 km (0.099 R)
• M12: 12,339,580 km (0.103 R)
• M13: 13,767,043 km (0.084 R)
• M14: 14,377,253 km (0.062 R)
• M15: 16,213,716 km (0.118 R)
• M16: 18,595,763 km (0.103 R)
• M17: 19,752,155 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.8

Radius: 9.6

Gravity: 10.08 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 4.02 AU - 4.1 AU

Year: 5282 Days

Day: 14.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 37,346,658 km

• M1: 119,379 km (0.048 R)
• M2: 462,706 km (0.114 R)
• M3: 853,605 km (0.064 R)
• M4: 1,305,391 km (0.08 R)
• M5: 2,588,642 km (0.104 R)
• M6: 3,062,268 km (0.118 R)
• M7: 3,548,312 km (0.1 R)
• M8: 4,463,701 km (0.067 R)
• M9: 5,499,068 km (0.05 R)
• M10: 6,025,353 km (0.118 R)
• M11: 6,383,640 km (0.072 R)
• M12: 6,859,960 km (0.043 R)
• M13: 8,077,238 km (0.04 R)
• M14: 8,635,088 km (0.103 R)
• M15: 9,563,193 km (0.034 R)
• M16: 12,484,242 km (0.072 R)
• M17: 12,800,342 km (0.062 R)
• M18: 14,462,075 km (0.094 R)
• M19: 14,928,521 km (0.073 R)
• M20: 15,284,863 km (0.113 R)
• M21: 17,874,103 km (0.061 R)
• M22: 18,276,073 km (0.12 R)
• M23: 21,561,242 km (0.114 R)
• M24: 23,422,539 km (0.066 R)
• M25: 24,721,347 km (0.095 R)
• M26: 27,550,841 km (0.073 R)
• M27: 33,946,300 km (0.105 R)
• M28: 34,459,870 km (0.109 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.3

Radius: 13.7

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 4.85 AU - 5.49 AU

Year: 7590 Days

Day: 8.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,346,658 km

• M1: 170,392 km (0.119 R)
• M2: 770,130 km (0.116 R)
• M3: 1,212,940 km (0.106 R)
• M4: 2,042,609 km (0.093 R)
• M5: 2,531,046 km (0.111 R)
• M6: 3,182,545 km (0.079 R)
• M7: 3,919,165 km (0.06 R)
• M8: 5,863,638 km (0.086 R)
• M9: 6,542,064 km (0.103 R)
• M10: 7,348,247 km (0.098 R)
• M11: 8,852,753 km (0.042 R)
• M12: 9,518,165 km (0.094 R)
• M13: 12,573,701 km (0.113 R)
• M14: 13,704,063 km (0.107 R)
• M15: 16,037,041 km (0.065 R)
• M16: 17,229,785 km (0.044 R)
• M17: 22,113,258 km (0.034 R)
• M18: 23,339,512 km (0.104 R)
• M19: 24,182,047 km (0.111 R)
• M20: 24,957,413 km (0.069 R)
• M21: 25,395,435 km (0.043 R)
• M22: 28,320,822 km (0.071 R)
• M23: 33,330,854 km (0.112 R)
• M24: 34,507,442 km (0.09 R)
• M25: 34,942,023 km (0.117 R)
• M26: 36,044,560 km (0.096 R)
• M27: 36,492,157 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 359.8

Radius: 5.9

Gravity: 10.34 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 5.95 AU - 6.05 AU

Year: 9489 Days

Day: 23 Hours

Environment

Temp: -218 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 37,346,658 km

• M1: 73,453 km (0.117 R)
• M2: 423,512 km (0.119 R)
• M3: 973,134 km (0.115 R)
• M4: 1,238,371 km (0.112 R)
• M5: 1,551,330 km (0.087 R)
• M6: 1,992,195 km (0.081 R)
• M7: 2,284,359 km (0.068 R)
• M8: 2,494,844 km (0.071 R)
• M9: 2,914,466 km (0.095 R)
• M10: 3,402,454 km (0.104 R)
• M11: 4,299,443 km (0.083 R)
• M12: 4,539,547 km (0.105 R)
• M13: 5,749,046 km (0.067 R)
• M14: 6,308,542 km (0.117 R)
• M15: 7,308,305 km (0.091 R)
• M16: 9,349,119 km (0.094 R)
• M17: 9,798,661 km (0.069 R)
• M18: 11,384,548 km (0.112 R)
• M19: 14,043,650 km (0.091 R)
• M20: 17,625,771 km (0.077 R)
• M21: 19,881,856 km (0.105 R)
• M22: 20,474,713 km (0.09 R)
• M23: 22,244,455 km (0.095 R)
• M24: 22,482,466 km (0.077 R)
• M25: 23,044,654 km (0.112 R)
• M26: 23,452,009 km (0.07 R)
• M27: 27,976,597 km (0.06 R)
• M28: 30,151,152 km (0.1 R)
• M29: 32,131,528 km (0.112 R)
• M30: 34,514,323 km (0.117 R)
• M31: 35,369,873 km (0.113 R)
• M32: 37,123,460 km (0.049 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: 349 - 18,415 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit