🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.2

Radius: 12.8

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.61 AU - 0.89 AU

Year: 433 Days

Day: 13.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 78,449,591 km

• M1: 159,172 km (0.096 R)
• M2: 564,433 km (0.094 R)
• M3: 963,261 km (0.098 R)
• M4: 1,416,692 km (0.084 R)
• M5: 1,857,108 km (0.111 R)
• M6: 2,420,643 km (0.094 R)
• M7: 3,005,870 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397

Radius: 9.7

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.78 AU - 0.96 AU

Year: 541 Days

Day: 6.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 69.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 78,449,591 km

• M1: 121,623 km (0.076 R)
• M2: 484,248 km (0.114 R)
• M3: 863,030 km (0.104 R)
• M4: 1,212,640 km (0.041 R)
• M5: 1,601,595 km (0.107 R)
• M6: 3,029,357 km (0.082 R)
• M7: 4,680,917 km (0.06 R)
• M8: 5,534,822 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667

Radius: 9.8

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.93 AU - 1.01 AU

Year: 637 Days

Day: 9.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,449,591 km

• M1: 121,922 km (0.098 R)
• M2: 487,390 km (0.094 R)
• M3: 999,164 km (0.102 R)
• M4: 1,382,883 km (0.085 R)
• M5: 1,748,650 km (0.09 R)
• M6: 2,104,094 km (0.048 R)
• M7: 2,723,579 km (0.103 R)
• M8: 3,756,403 km (0.062 R)
• M9: 4,620,629 km (0.093 R)
• M10: 5,117,145 km (0.036 R)
• M11: 5,503,406 km (0.034 R)
• M12: 6,555,229 km (0.075 R)
• M13: 6,969,316 km (0.114 R)
• M14: 7,313,092 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.3

Radius: 9.1

Gravity: 8.46 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.35 AU - 1.69 AU

Year: 1250 Days

Day: 15 Hours

Environment

Temp: -197 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 78,449,591 km

• M1: 120,576 km (0.086 R)
• M2: 508,633 km (0.027 R)
• M3: 811,568 km (0.092 R)
• M4: 1,181,075 km (0.114 R)
• M5: 1,502,711 km (0.106 R)
• M6: 1,823,598 km (0.049 R)
• M7: 2,386,236 km (0.117 R)
• M8: 2,787,158 km (0.056 R)
• M9: 3,160,105 km (0.118 R)
• M10: 3,645,251 km (0.077 R)
• M11: 3,956,265 km (0.116 R)
• M12: 4,650,699 km (0.064 R)
• M13: 4,938,675 km (0.104 R)
• M14: 5,299,804 km (0.062 R)
• M15: 6,008,150 km (0.054 R)
• M16: 6,900,501 km (0.118 R)
• M17: 7,430,077 km (0.094 R)
• M18: 9,182,766 km (0.111 R)
• M19: 9,855,059 km (0.115 R)
• M20: 10,724,522 km (0.095 R)
• M21: 11,504,824 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.3

Radius: 13.6

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.28 AU - 2.94 AU

Year: 2812 Days

Day: 10.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,449,591 km

• M1: 171,738 km (0.03 R)
• M2: 671,246 km (0.044 R)
• M3: 1,152,951 km (0.08 R)
• M4: 1,900,192 km (0.043 R)
• M5: 2,780,725 km (0.097 R)
• M6: 3,826,714 km (0.049 R)
• M7: 4,449,340 km (0.052 R)
• M8: 5,101,736 km (0.086 R)
• M9: 6,252,742 km (0.056 R)
• M10: 7,306,958 km (0.114 R)
• M11: 7,914,176 km (0.064 R)
• M12: 9,481,962 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.9

Radius: 13.4

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.49 AU - 4.27 AU

Year: 5097 Days

Day: 15 Hours

Environment

Temp: -215 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 78,449,591 km

• M1: 177,722 km (0.059 R)
• M2: 663,616 km (0.034 R)
• M3: 1,739,674 km (0.054 R)
• M4: 2,534,786 km (0.096 R)
• M5: 2,952,613 km (0.119 R)
• M6: 3,480,245 km (0.052 R)
• M7: 4,475,519 km (0.09 R)
• M8: 5,432,198 km (0.106 R)
• M9: 9,441,870 km (0.12 R)
• M10: 13,262,898 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 171.5

Radius: 5.7

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 6.02 AU - 7.06 AU

Year: 11153 Days

Day: 19.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 78,449,591 km

• M1: 70,909 km (0.064 R)
• M2: 416,032 km (0.098 R)
• M3: 730,486 km (0.119 R)
• M4: 972,685 km (0.119 R)
• M5: 1,686,566 km (0.069 R)
• M6: 1,892,263 km (0.088 R)
• M7: 2,630,529 km (0.046 R)
• M8: 3,792,306 km (0.117 R)
• M9: 4,123,366 km (0.052 R)
• M10: 5,290,080 km (0.058 R)
• M11: 5,856,308 km (0.084 R)
• M12: 6,729,211 km (0.049 R)
• M13: 7,143,747 km (0.101 R)
• M14: 7,760,090 km (0.101 R)
• M15: 8,061,979 km (0.087 R)
• M16: 9,264,895 km (0.071 R)
• M17: 9,865,232 km (0.104 R)
• M18: 10,491,149 km (0.087 R)
• M19: 10,954,154 km (0.094 R)
• M20: 11,772,604 km (0.087 R)
• M21: 12,527,774 km (0.082 R)
• M22: 13,912,602 km (0.108 R)
• M23: 14,358,553 km (0.073 R)
• M24: 18,142,931 km (0.103 R)
• M25: 19,770,406 km (0.103 R)
• M26: 20,192,122 km (0.108 R)
• M27: 20,691,480 km (0.105 R)
• M28: 21,345,671 km (0.093 R)
• M29: 21,789,379 km (0.083 R)
• M30: 22,239,369 km (0.088 R)
• M31: 23,002,767 km (0.093 R)
• M32: 23,704,680 km (0.036 R)
• M33: 28,753,608 km (0.092 R)
• M34: 32,102,955 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 728.6

Radius: 7.8

Gravity: 11.98 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 7.95 AU - 11.55 AU

Year: 20302 Days

Day: 21.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 78,449,591 km

• M1: 97,987 km (0.098 R)
• M2: 482,004 km (0.079 R)
• M3: 762,201 km (0.078 R)
• M4: 1,380,938 km (0.108 R)
• M5: 3,069,150 km (0.049 R)
• M6: 3,632,087 km (0.102 R)
• M7: 4,033,757 km (0.092 R)
• M8: 8,494,167 km (0.051 R)
• M9: 11,305,709 km (0.104 R)
• M10: 13,419,378 km (0.075 R)
• M11: 21,416,581 km (0.104 R)
• M12: 21,813,763 km (0.116 R)
• M13: 25,391,546 km (0.031 R)
• M14: 31,462,826 km (0.092 R)
• M15: 35,175,247 km (0.096 R)
• M16: 35,451,105 km (0.051 R)
• M17: 39,169,659 km (0.078 R)
• M18: 42,356,692 km (0.108 R)
• M19: 47,036,263 km (0.11 R)
• M20: 48,555,729 km (0.108 R)
• M21: 51,514,775 km (0.116 R)
• M22: 53,674,370 km (0.115 R)
• M23: 63,324,031 km (0.089 R)
• M24: 67,062,631 km (0.095 R)
• M25: 68,770,440 km (0.057 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 19,675 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit