🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.8

Radius: 14.1

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.74 AU - 0.82 AU

Year: 452 Days

Day: 12.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,430,517 km

• M1: 175,329 km (0.112 R)
• M2: 668,553 km (0.108 R)
• M3: 1,300,155 km (0.079 R)
• M4: 1,742,366 km (0.091 R)
• M5: 2,556,777 km (0.106 R)
• M6: 3,017,239 km (0.06 R)
• M7: 3,544,722 km (0.117 R)
• M8: 4,210,432 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.5

Radius: 12

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.07 AU - 1.41 AU

Year: 906 Days

Day: 14.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,430,517 km

• M1: 149,299 km (0.116 R)
• M2: 836,850 km (0.114 R)
• M3: 1,391,709 km (0.075 R)
• M4: 1,839,455 km (0.051 R)
• M5: 2,461,035 km (0.112 R)
• M6: 3,023,523 km (0.045 R)
• M7: 3,682,052 km (0.115 R)
• M8: 4,114,091 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.3

Radius: 11

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.23 AU - 2.79 AU

Year: 2609 Days

Day: 8.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 139.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,430,517 km

• M1: 137,032 km (0.055 R)
• M2: 489,484 km (0.039 R)
• M3: 842,386 km (0.114 R)
• M4: 1,335,311 km (0.119 R)
• M5: 1,711,848 km (0.058 R)
• M6: 2,148,674 km (0.045 R)
• M7: 4,048,717 km (0.087 R)
• M8: 4,892,299 km (0.067 R)
• M9: 5,560,852 km (0.06 R)
• M10: 6,952,262 km (0.055 R)
• M11: 7,366,798 km (0.102 R)
• M12: 9,223,457 km (0.08 R)
• M13: 9,820,801 km (0.109 R)
• M14: 10,577,916 km (0.108 R)
• M15: 10,953,706 km (0.063 R)
• M16: 11,950,476 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.4

Radius: 13.7

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.82 AU - 3.44 AU

Year: 3633 Days

Day: 7.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,430,517 km

• M1: 170,392 km (0.094 R)
• M2: 763,847 km (0.085 R)
• M3: 1,203,964 km (0.094 R)
• M4: 2,404,187 km (0.1 R)
• M5: 2,886,641 km (0.1 R)
• M6: 5,505,950 km (0.115 R)
• M7: 6,994,748 km (0.072 R)
• M8: 7,617,524 km (0.096 R)
• M9: 8,244,787 km (0.087 R)
• M10: 9,390,258 km (0.089 R)
• M11: 11,872,087 km (0.116 R)
• M12: 12,890,250 km (0.104 R)
• M13: 15,492,056 km (0.11 R)
• M14: 17,285,884 km (0.118 R)
• M15: 17,931,698 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.6

Radius: 12

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3 AU - 3.72 AU

Year: 4040 Days

Day: 14.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,430,517 km

• M1: 149,299 km (0.076 R)
• M2: 555,606 km (0.065 R)
• M3: 1,216,979 km (0.055 R)
• M4: 2,856,721 km (0.05 R)
• M5: 3,470,371 km (0.118 R)
• M6: 4,011,617 km (0.065 R)
• M7: 4,522,792 km (0.082 R)
• M8: 5,031,126 km (0.088 R)
• M9: 5,602,141 km (0.059 R)
• M10: 5,980,624 km (0.062 R)
• M11: 8,011,265 km (0.086 R)
• M12: 9,586,082 km (0.076 R)
• M13: 10,277,972 km (0.055 R)
• M14: 11,081,313 km (0.111 R)
• M15: 11,639,762 km (0.079 R)
• M16: 12,343,171 km (0.049 R)
• M17: 13,926,066 km (0.077 R)
• M18: 16,292,704 km (0.093 R)
• M19: 17,173,088 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.8

Radius: 13.3

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.59 AU - 4.37 AU

Year: 5209 Days

Day: 13.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,430,517 km

• M1: 165,455 km (0.104 R)
• M2: 935,286 km (0.111 R)
• M3: 1,456,634 km (0.077 R)
• M4: 1,910,215 km (0.045 R)
• M5: 2,459,239 km (0.086 R)
• M6: 3,131,532 km (0.093 R)
• M7: 4,645,612 km (0.072 R)
• M8: 5,593,464 km (0.087 R)
• M9: 6,729,660 km (0.038 R)
• M10: 7,285,566 km (0.093 R)
• M11: 7,942,899 km (0.115 R)
• M12: 9,061,293 km (0.056 R)
• M13: 10,282,011 km (0.107 R)
• M14: 13,811,175 km (0.096 R)
• M15: 14,229,899 km (0.062 R)
• M16: 14,657,151 km (0.119 R)
• M17: 19,545,411 km (0.113 R)
• M18: 22,212,591 km (0.044 R)
• M19: 24,575,489 km (0.114 R)
• M20: 25,896,887 km (0.076 R)
• M21: 26,534,773 km (0.104 R)
• M22: 27,346,940 km (0.047 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.2

Radius: 9

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 4.91 AU - 4.97 AU

Year: 7203 Days

Day: 7.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 56,430,517 km

• M1: 111,899 km (0.065 R)
• M2: 533,167 km (0.06 R)
• M3: 1,048,083 km (0.109 R)
• M4: 1,754,783 km (0.11 R)
• M5: 2,131,321 km (0.092 R)
• M6: 2,886,491 km (0.109 R)
• M7: 3,785,724 km (0.111 R)
• M8: 4,313,355 km (0.101 R)
• M9: 5,270,931 km (0.117 R)
• M10: 7,000,432 km (0.041 R)
• M11: 8,400,220 km (0.111 R)
• M12: 8,692,683 km (0.092 R)
• M13: 10,164,577 km (0.103 R)
• M14: 10,641,645 km (0.097 R)
• M15: 12,537,947 km (0.076 R)
• M16: 13,367,318 km (0.082 R)
• M17: 13,766,594 km (0.09 R)
• M18: 15,820,723 km (0.118 R)
• M19: 16,203,245 km (0.108 R)
• M20: 20,677,717 km (0.101 R)
• M21: 21,135,337 km (0.094 R)
• M22: 23,196,646 km (0.096 R)
• M23: 24,107,697 km (0.065 R)
• M24: 25,388,404 km (0.112 R)
• M25: 27,992,006 km (0.058 R)
• M26: 33,409,244 km (0.088 R)
• M27: 37,988,434 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.5

Radius: 8.7

Gravity: 12.07 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 4.62 AU - 6.4 AU

Year: 8485 Days

Day: 11.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 56,430,517 km

• M1: 110,254 km (0.101 R)
• M2: 545,135 km (0.118 R)
• M3: 976,276 km (0.09 R)
• M4: 1,727,706 km (0.12 R)
• M5: 2,364,843 km (0.092 R)
• M6: 2,737,940 km (0.1 R)
• M7: 3,242,235 km (0.058 R)
• M8: 5,006,293 km (0.113 R)
• M9: 5,692,648 km (0.064 R)
• M10: 6,403,238 km (0.109 R)
• M11: 7,131,779 km (0.049 R)
• M12: 11,243,477 km (0.038 R)
• M13: 13,671,600 km (0.11 R)
• M14: 14,170,808 km (0.086 R)
• M15: 15,007,808 km (0.075 R)
• M16: 17,570,868 km (0.082 R)
• M17: 19,303,361 km (0.091 R)
• M18: 22,669,014 km (0.087 R)
• M19: 24,444,741 km (0.097 R)
• M20: 24,995,111 km (0.11 R)
• M21: 32,698,803 km (0.05 R)
• M22: 38,178,424 km (0.048 R)
• M23: 44,375,516 km (0.062 R)
• M24: 46,023,486 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 378.3

Radius: 7.8

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 7.71 AU - 8.83 AU

Year: 15602 Days

Day: 15.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 56,430,517 km

• M1: 96,939 km (0.073 R)
• M2: 808,876 km (0.1 R)
• M3: 1,731,745 km (0.088 R)
• M4: 2,029,295 km (0.082 R)
• M5: 2,322,357 km (0.065 R)
• M6: 2,793,441 km (0.089 R)
• M7: 3,604,710 km (0.071 R)
• M8: 5,756,077 km (0.104 R)
• M9: 6,697,497 km (0.095 R)
• M10: 7,650,884 km (0.118 R)
• M11: 7,958,308 km (0.096 R)
• M12: 8,319,586 km (0.068 R)
• M13: 10,614,268 km (0.102 R)
• M14: 11,502,580 km (0.115 R)
• M15: 11,848,151 km (0.087 R)
• M16: 12,319,684 km (0.116 R)
• M17: 13,681,174 km (0.108 R)
• M18: 14,332,074 km (0.102 R)
• M19: 15,346,946 km (0.084 R)
• M20: 16,700,209 km (0.101 R)
• M21: 16,994,917 km (0.071 R)
• M22: 18,364,335 km (0.091 R)
• M23: 24,391,933 km (0.073 R)
• M24: 25,348,312 km (0.082 R)
• M25: 27,335,720 km (0.052 R)
• M26: 28,263,077 km (0.084 R)
• M27: 33,917,876 km (0.088 R)
• M28: 34,272,274 km (0.102 R)
• M29: 34,748,593 km (0.057 R)
• M30: 35,714,397 km (0.074 R)
• M31: 41,348,702 km (0.087 R)
• M32: 47,400,684 km (0.036 R)
• M33: 47,695,691 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 374.7

Radius: 7.7

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 7.23 AU - 10.47 AU

Year: 17271 Days

Day: 21.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 123.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,430,517 km

• M1: 95,892 km (0.09 R)
• M2: 458,218 km (0.113 R)
• M3: 720,463 km (0.077 R)
• M4: 1,108,969 km (0.072 R)
• M5: 1,694,196 km (0.037 R)
• M6: 1,959,134 km (0.093 R)
• M7: 2,429,170 km (0.062 R)
• M8: 6,095,216 km (0.037 R)
• M9: 8,435,375 km (0.102 R)
• M10: 9,265,494 km (0.118 R)
• M11: 12,082,422 km (0.115 R)
• M12: 12,632,792 km (0.064 R)
• M13: 14,452,052 km (0.093 R)
• M14: 14,794,481 km (0.114 R)
• M15: 18,763,612 km (0.084 R)
• M16: 20,004,078 km (0.094 R)
• M17: 22,282,304 km (0.102 R)
• M18: 29,156,027 km (0.09 R)
• M19: 30,145,317 km (0.099 R)
• M20: 34,085,426 km (0.096 R)
• M21: 50,562,734 km (0.106 R)
• M22: 51,670,207 km (0.108 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: 157 - 12,123 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit