🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.2

Radius: 11.5

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.44 AU - 0.72 AU

Year: 305 Days

Day: 6.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,934,986 km

• M1: 174,581 km (0.03 R)
• M2: 558,598 km (0.116 R)
• M3: 1,202,767 km (0.094 R)
• M4: 1,711,549 km (0.096 R)
• M5: 2,167,374 km (0.118 R)
• M6: 2,834,580 km (0.089 R)
• M7: 3,359,370 km (0.092 R)
• M8: 3,865,160 km (0.097 R)
• M9: 4,408,350 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.7

Radius: 9.3

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.54 AU - 0.62 AU

Year: 305 Days

Day: 7.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 64,934,986 km

• M1: 119,080 km (0.093 R)
• M2: 460,612 km (0.108 R)
• M3: 780,153 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.7

Radius: 13.6

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.66 AU - 2.32 AU

Year: 1938 Days

Day: 6.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,934,986 km

• M1: 169,195 km (0.098 R)
• M2: 673,041 km (0.109 R)
• M3: 1,229,395 km (0.046 R)
• M4: 1,733,391 km (0.111 R)
• M5: 2,619,908 km (0.111 R)
• M6: 3,424,594 km (0.101 R)
• M7: 3,965,241 km (0.062 R)
• M8: 4,484,795 km (0.099 R)
• M9: 5,306,087 km (0.087 R)
• M10: 5,799,311 km (0.105 R)
• M11: 6,249,750 km (0.108 R)
• M12: 6,826,600 km (0.106 R)
• M13: 8,500,301 km (0.074 R)
• M14: 9,209,544 km (0.118 R)
• M15: 9,758,867 km (0.081 R)
• M16: 10,433,255 km (0.111 R)
• M17: 10,923,637 km (0.084 R)
• M18: 12,565,922 km (0.03 R)
• M19: 14,496,183 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.2

Radius: 9

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.92 AU - 2.22 AU

Year: 2056 Days

Day: 13.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,934,986 km

• M1: 111,899 km (0.041 R)
• M2: 532,868 km (0.081 R)
• M3: 1,340,397 km (0.108 R)
• M4: 1,684,472 km (0.117 R)
• M5: 2,019,571 km (0.085 R)
• M6: 2,312,334 km (0.088 R)
• M7: 2,812,290 km (0.109 R)
• M8: 3,241,038 km (0.062 R)
• M9: 4,496,463 km (0.081 R)
• M10: 5,452,244 km (0.078 R)
• M11: 6,314,825 km (0.113 R)
• M12: 6,843,355 km (0.076 R)
• M13: 9,972,942 km (0.063 R)
• M14: 10,690,114 km (0.105 R)
• M15: 11,477,747 km (0.103 R)
• M16: 13,208,744 km (0.09 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 848.9

Radius: 3

Gravity: 94.32 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 8 AU - 8.46 AU

Year: 16297 Days

Day: 22.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 64,934,986 km

• M1: 41,289 km (0.12 R)
• M2: 228,735 km (0.087 R)
• M3: 399,875 km (0.078 R)
• M4: 518,357 km (0.107 R)
• M5: 775,665 km (0.065 R)
• M6: 915,689 km (0.094 R)
• M7: 1,218,923 km (0.084 R)
• M8: 2,201,632 km (0.107 R)
• M9: 2,350,631 km (0.103 R)
• M10: 2,913,119 km (0.107 R)
• M11: 3,588,853 km (0.118 R)
• M12: 4,913,093 km (0.072 R)
• M13: 5,943,823 km (0.088 R)
• M14: 6,066,493 km (0.091 R)
• M15: 6,317,219 km (0.11 R)
• M16: 6,488,060 km (0.058 R)
• M17: 6,750,155 km (0.068 R)
• M18: 8,838,841 km (0.081 R)
• M19: 10,115,509 km (0.109 R)
• M20: 15,353,379 km (0.093 R)
• M21: 15,818,329 km (0.082 R)
• M22: 19,249,057 km (0.102 R)
• M23: 20,247,174 km (0.079 R)
• M24: 21,663,268 km (0.097 R)
• M25: 23,144,137 km (0.074 R)
• M26: 26,195,485 km (0.044 R)
• M27: 27,760,129 km (0.117 R)
• M28: 38,900,234 km (0.103 R)
• M29: 39,043,099 km (0.105 R)
• M30: 42,729,789 km (0.113 R)
• M31: 43,340,448 km (0.079 R)
• M32: 49,266,768 km (0.039 R)
• M33: 53,210,317 km (0.077 R)
• M34: 61,912,126 km (0.077 R)
• M35: 63,679,924 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826.3

Radius: 6.8

Gravity: 17.87 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 8.16 AU - 8.7 AU

Year: 16895 Days

Day: 16 Hours

Environment

Temp: -241 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 64,934,986 km

• M1: 118,930 km (0.095 R)
• M2: 793,018 km (0.099 R)
• M3: 1,241,513 km (0.088 R)
• M4: 1,555,519 km (0.1 R)
• M5: 1,793,678 km (0.08 R)
• M6: 2,344,199 km (0.097 R)
• M7: 3,053,293 km (0.061 R)
• M8: 4,746,292 km (0.12 R)
• M9: 5,140,482 km (0.103 R)
• M10: 5,364,580 km (0.069 R)
• M11: 6,984,725 km (0.056 R)
• M12: 8,332,302 km (0.103 R)
• M13: 8,959,716 km (0.088 R)
• M14: 9,340,143 km (0.099 R)
• M15: 9,787,889 km (0.067 R)
• M16: 10,017,073 km (0.088 R)
• M17: 10,908,677 km (0.111 R)
• M18: 12,047,266 km (0.115 R)
• M19: 13,828,528 km (0.102 R)
• M20: 20,122,559 km (0.063 R)
• M21: 23,834,232 km (0.027 R)
• M22: 24,564,419 km (0.089 R)
• M23: 29,618,583 km (0.079 R)
• M24: 30,951,650 km (0.074 R)
• M25: 37,517,800 km (0.114 R)
• M26: 41,124,006 km (0.073 R)
• M27: 42,934,290 km (0.119 R)
• M28: 49,016,640 km (0.038 R)
• M29: 49,688,484 km (0.086 R)
• M30: 51,222,461 km (0.109 R)
• M31: 52,437,195 km (0.027 R)
• M32: 55,285,688 km (0.118 R)
• M33: 56,563,852 km (0.108 R)
• M34: 59,940,426 km (0.096 R)
• M35: 60,708,611 km (0.078 R)
• M36: 61,873,231 km (0.089 R)
• M37: 64,246,900 km (0.119 R)
• M38: 65,253,544 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 399

Radius: 4.7

Gravity: 18.06 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 8.79 AU - 10.49 AU

Year: 20660 Days

Day: 22 Hours

Environment

Temp: -229 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 64,934,986 km

• M1: 58,493 km (0.105 R)
• M2: 304,731 km (0.097 R)
• M3: 503,397 km (0.11 R)
• M4: 911,201 km (0.101 R)
• M5: 1,159,683 km (0.116 R)
• M6: 2,086,292 km (0.053 R)
• M7: 2,285,556 km (0.102 R)
• M8: 2,676,456 km (0.045 R)
• M9: 5,814,121 km (0.087 R)
• M10: 6,880,455 km (0.07 R)
• M11: 9,180,672 km (0.098 R)
• M12: 9,937,487 km (0.086 R)
• M13: 10,618,457 km (0.045 R)
• M14: 19,223,476 km (0.057 R)
• M15: 22,502,362 km (0.083 R)
• M16: 27,101,150 km (0.093 R)
• M17: 37,422,805 km (0.104 R)
• M18: 38,100,483 km (0.084 R)
• M19: 41,036,342 km (0.046 R)
• M20: 45,640,366 km (0.116 R)
• M21: 52,074,121 km (0.068 R)
• M22: 52,242,419 km (0.113 R)
• M23: 53,258,936 km (0.101 R)
• M24: 56,210,652 km (0.101 R)
• M25: 57,636,619 km (0.096 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 15,539 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit