🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.7

Radius: 9.3

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.7 AU - 0.9 AU

Year: 503 Days

Day: 12.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,996,700 km

• M1: 117,883 km (0.092 R)
• M2: 705,803 km (0.103 R)
• M3: 998,715 km (0.075 R)
• M4: 1,519,765 km (0.073 R)
• M5: 2,083,749 km (0.09 R)
• M6: 2,497,686 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.8

Radius: 13.8

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.56 AU - 1.96 AU

Year: 1641 Days

Day: 12.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 58,996,700 km

• M1: 171,738 km (0.101 R)
• M2: 617,989 km (0.116 R)
• M3: 1,067,231 km (0.101 R)
• M4: 1,555,369 km (0.093 R)
• M5: 2,170,964 km (0.106 R)
• M6: 2,678,251 km (0.11 R)
• M7: 3,812,203 km (0.11 R)
• M8: 4,420,916 km (0.031 R)
• M9: 4,862,230 km (0.082 R)
• M10: 5,422,025 km (0.076 R)
• M11: 6,000,670 km (0.086 R)
• M12: 7,038,879 km (0.083 R)
• M13: 7,559,330 km (0.084 R)
• M14: 8,283,085 km (0.118 R)
• M15: 9,116,195 km (0.045 R)
• M16: 9,735,530 km (0.106 R)
• M17: 10,557,720 km (0.058 R)
• M18: 11,388,736 km (0.079 R)
• M19: 11,915,620 km (0.066 R)
• M20: 12,380,271 km (0.082 R)
• M21: 13,018,456 km (0.108 R)
• M22: 13,974,236 km (0.117 R)
• M23: 14,976,392 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.2

Radius: 13.2

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.85 AU - 2.79 AU

Year: 2484 Days

Day: 5.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,996,700 km

• M1: 167,400 km (0.093 R)
• M2: 615,894 km (0.084 R)
• M3: 1,158,037 km (0.09 R)
• M4: 1,877,004 km (0.103 R)
• M5: 3,238,196 km (0.069 R)
• M6: 3,758,497 km (0.076 R)
• M7: 4,231,077 km (0.12 R)
• M8: 6,208,162 km (0.087 R)
• M9: 6,729,810 km (0.097 R)
• M10: 7,582,667 km (0.103 R)
• M11: 9,719,523 km (0.102 R)
• M12: 11,689,428 km (0.074 R)
• M13: 13,592,313 km (0.075 R)
• M14: 17,406,460 km (0.095 R)
• M15: 18,391,562 km (0.097 R)
• M16: 18,954,649 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.3

Radius: 10.7

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.77 AU - 2.89 AU

Year: 3346 Days

Day: 10.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 136.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 58,996,700 km

• M1: 145,260 km (0.053 R)
• M2: 514,317 km (0.026 R)
• M3: 1,557,015 km (0.108 R)
• M4: 2,497,237 km (0.116 R)
• M5: 2,918,355 km (0.031 R)
• M6: 3,311,498 km (0.108 R)
• M7: 3,679,360 km (0.101 R)
• M8: 4,708,892 km (0.118 R)
• M9: 6,674,608 km (0.108 R)
• M10: 7,755,752 km (0.034 R)
• M11: 8,233,418 km (0.094 R)
• M12: 8,767,034 km (0.075 R)
• M13: 10,222,322 km (0.047 R)
• M14: 10,881,001 km (0.109 R)
• M15: 12,698,466 km (0.118 R)
• M16: 14,251,292 km (0.092 R)
• M17: 15,231,158 km (0.086 R)
• M18: 15,656,913 km (0.1 R)
• M19: 16,090,597 km (0.091 R)
• M20: 17,788,832 km (0.101 R)
• M21: 19,416,756 km (0.092 R)
• M22: 20,171,178 km (0.085 R)
• M23: 21,605,074 km (0.077 R)
• M24: 22,007,642 km (0.048 R)
• M25: 22,758,773 km (0.086 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 426.2

Radius: 3.6

Gravity: 32.89 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 5.12 AU - 6.82 AU

Year: 10253 Days

Day: 15.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,996,700 km

• M1: 46,525 km (0.112 R)
• M2: 307,872 km (0.09 R)
• M3: 584,180 km (0.071 R)
• M4: 1,458,430 km (0.12 R)
• M5: 1,857,557 km (0.116 R)
• M6: 2,236,638 km (0.117 R)
• M7: 2,867,642 km (0.109 R)
• M8: 3,883,112 km (0.038 R)
• M9: 10,437,743 km (0.038 R)
• M10: 13,056,304 km (0.035 R)
• M11: 17,300,695 km (0.101 R)
• M12: 23,639,306 km (0.078 R)
• M13: 25,660,672 km (0.102 R)
• M14: 26,023,597 km (0.043 R)
• M15: 29,346,315 km (0.109 R)
• M16: 41,236,055 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 257.9

Radius: 7.2

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 7.57 AU - 9.77 AU

Year: 17945 Days

Day: 23.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,996,700 km

• M1: 90,507 km (0.112 R)
• M2: 632,799 km (0.109 R)
• M3: 1,453,343 km (0.083 R)
• M4: 1,684,322 km (0.086 R)
• M5: 4,495,266 km (0.041 R)
• M6: 11,613,582 km (0.06 R)
• M7: 11,842,018 km (0.1 R)
• M8: 15,780,930 km (0.112 R)
• M9: 18,974,844 km (0.098 R)
• M10: 20,431,030 km (0.111 R)
• M11: 21,614,050 km (0.041 R)
• M12: 24,676,169 km (0.032 R)
• M13: 28,015,642 km (0.062 R)
• M14: 28,427,335 km (0.066 R)
• M15: 31,312,480 km (0.089 R)
• M16: 31,755,888 km (0.111 R)
• M17: 37,782,139 km (0.051 R)
• M18: 39,948,765 km (0.116 R)
• M19: 43,283,601 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253.9

Radius: 3

Gravity: 28.21 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 8.3 AU - 11.82 AU

Year: 22429 Days

Day: 17.6 Hours

Environment

Temp: -245 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,996,700 km

• M1: 64,177 km (0.104 R)
• M2: 213,327 km (0.106 R)
• M3: 467,793 km (0.101 R)
• M4: 607,068 km (0.078 R)
• M5: 1,134,550 km (0.093 R)
• M6: 2,479,435 km (0.027 R)
• M7: 2,630,828 km (0.083 R)
• M8: 3,428,185 km (0.118 R)
• M9: 4,220,904 km (0.1 R)
• M10: 5,338,699 km (0.099 R)
• M11: 5,664,673 km (0.093 R)
• M12: 6,476,541 km (0.117 R)
• M13: 8,864,721 km (0.085 R)
• M14: 23,067,842 km (0.101 R)
• M15: 24,318,630 km (0.069 R)
• M16: 28,016,540 km (0.086 R)
• M17: 43,162,127 km (0.052 R)
• M18: 55,021,349 km (0.072 R)
• M19: 55,699,476 km (0.098 R)
• M20: 57,592,936 km (0.068 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: 174 - 16,197 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit