🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.7

Radius: 12.8

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.5 AU - 0.72 AU

Year: 335 Days

Day: 13.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 60.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 85,995,471 km

• M1: 159,322 km (0.053 R)
• M2: 935,735 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.9

Radius: 10.3

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.78 AU - 0.8 AU

Year: 494 Days

Day: 13.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 85,995,471 km

• M1: 128,205 km (0.054 R)
• M2: 496,067 km (0.104 R)
• M3: 844,480 km (0.116 R)
• M4: 1,305,541 km (0.116 R)
• M5: 1,666,969 km (0.12 R)
• M6: 2,232,748 km (0.109 R)
• M7: 2,866,594 km (0.109 R)
• M8: 3,373,731 km (0.05 R)
• M9: 3,775,850 km (0.046 R)
• M10: 4,108,855 km (0.103 R)
• M11: 5,211,691 km (0.092 R)
• M12: 5,537,964 km (0.082 R)
• M13: 6,006,504 km (0.109 R)
• M14: 6,579,913 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.6

Radius: 8.1

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.96 AU - 1.04 AU

Year: 703 Days

Day: 6.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,995,471 km

• M1: 100,679 km (0.064 R)
• M2: 354,846 km (0.105 R)
• M3: 777,011 km (0.081 R)
• M4: 1,083,687 km (0.094 R)
• M5: 1,499,419 km (0.116 R)
• M6: 2,234,992 km (0.11 R)
• M7: 2,641,599 km (0.065 R)
• M8: 2,981,186 km (0.027 R)
• M9: 3,312,845 km (0.109 R)
• M10: 3,788,865 km (0.102 R)
• M11: 4,641,274 km (0.079 R)
• M12: 5,459,125 km (0.056 R)
• M13: 6,274,284 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.8

Radius: 10.4

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 3.73 AU - 4.43 AU

Year: 5793 Days

Day: 9.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 97.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 85,995,471 km

• M1: 129,402 km (0.049 R)
• M2: 485,894 km (0.045 R)
• M3: 1,358,648 km (0.11 R)
• M4: 2,086,292 km (0.06 R)
• M5: 2,497,836 km (0.037 R)
• M6: 2,981,635 km (0.107 R)
• M7: 3,425,193 km (0.114 R)
• M8: 3,934,723 km (0.097 R)
• M9: 5,079,297 km (0.088 R)
• M10: 5,772,234 km (0.098 R)
• M11: 6,187,218 km (0.073 R)
• M12: 6,590,235 km (0.06 R)
• M13: 7,110,387 km (0.067 R)
• M14: 7,763,381 km (0.068 R)
• M15: 8,606,814 km (0.108 R)
• M16: 11,321,118 km (0.066 R)
• M17: 11,784,273 km (0.094 R)
• M18: 14,132,062 km (0.073 R)
• M19: 16,187,686 km (0.055 R)
• M20: 21,230,032 km (0.096 R)
• M21: 21,580,540 km (0.046 R)
• M22: 25,301,338 km (0.111 R)
• M23: 25,933,988 km (0.11 R)
• M24: 28,231,213 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.7

Radius: 14.2

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 3.74 AU - 4.58 AU

Year: 5964 Days

Day: 6 Hours

Environment

Temp: -216 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,995,471 km

• M1: 176,675 km (0.119 R)
• M2: 802,593 km (0.091 R)
• M3: 1,431,352 km (0.085 R)
• M4: 2,011,493 km (0.073 R)
• M5: 2,494,544 km (0.074 R)
• M6: 3,074,535 km (0.117 R)
• M7: 4,659,375 km (0.098 R)
• M8: 5,238,768 km (0.106 R)
• M9: 5,748,448 km (0.087 R)
• M10: 6,479,533 km (0.103 R)
• M11: 7,034,391 km (0.078 R)
• M12: 7,550,354 km (0.108 R)
• M13: 8,581,233 km (0.038 R)
• M14: 14,304,997 km (0.099 R)
• M15: 16,234,211 km (0.092 R)
• M16: 18,267,396 km (0.092 R)
• M17: 27,348,585 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.2

Radius: 8.2

Gravity: 13.08 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.74 AU - 6.14 AU

Year: 7718 Days

Day: 9.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 85,995,471 km

• M1: 149,747 km (0.083 R)
• M2: 411,544 km (0.12 R)
• M3: 1,041,500 km (0.111 R)
• M4: 1,468,752 km (0.109 R)
• M5: 2,142,092 km (0.11 R)
• M6: 2,879,609 km (0.089 R)
• M7: 3,877,876 km (0.105 R)
• M8: 4,275,507 km (0.111 R)
• M9: 4,758,858 km (0.12 R)
• M10: 5,936,642 km (0.057 R)
• M11: 6,250,349 km (0.119 R)
• M12: 9,082,685 km (0.09 R)
• M13: 9,737,325 km (0.087 R)
• M14: 11,088,045 km (0.115 R)
• M15: 11,351,187 km (0.096 R)
• M16: 24,123,704 km (0.103 R)
• M17: 26,484,957 km (0.071 R)
• M18: 28,402,951 km (0.1 R)
• M19: 29,698,169 km (0.086 R)
• M20: 30,617,747 km (0.099 R)
• M21: 33,162,407 km (0.088 R)
• M22: 36,074,629 km (0.106 R)
• M23: 36,421,247 km (0.102 R)
• M24: 37,356,383 km (0.092 R)
• M25: 39,031,431 km (0.04 R)
• M26: 41,636,977 km (0.118 R)
• M27: 42,402,170 km (0.042 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 557.8

Radius: 5.1

Gravity: 21.45 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 6.97 AU - 10.47 AU

Year: 18100 Days

Day: 17.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 116.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 85,995,471 km

• M1: 63,429 km (0.039 R)
• M2: 761,004 km (0.073 R)
• M3: 1,052,122 km (0.102 R)
• M4: 1,666,520 km (0.043 R)
• M5: 2,515,937 km (0.112 R)
• M6: 5,530,334 km (0.101 R)
• M7: 8,021,587 km (0.071 R)
• M8: 11,295,088 km (0.099 R)
• M9: 13,089,066 km (0.058 R)
• M10: 15,587,799 km (0.113 R)
• M11: 18,984,568 km (0.119 R)
• M12: 20,671,434 km (0.108 R)
• M13: 24,035,740 km (0.058 R)
• M14: 28,874,334 km (0.094 R)
• M15: 40,277,731 km (0.101 R)
• M16: 42,454,978 km (0.112 R)
• M17: 46,726,745 km (0.07 R)
• M18: 47,518,567 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 717.9

Radius: 5.9

Gravity: 20.62 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 8.24 AU - 12.5 AU

Year: 23473 Days

Day: 18.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 85,995,471 km

• M1: 74,350 km (0.117 R)
• M2: 289,472 km (0.11 R)
• M3: 662,719 km (0.103 R)
• M4: 2,062,356 km (0.075 R)
• M5: 2,758,884 km (0.051 R)
• M6: 4,640,825 km (0.101 R)
• M7: 5,368,768 km (0.083 R)
• M8: 7,594,037 km (0.05 R)
• M9: 8,166,997 km (0.083 R)
• M10: 11,204,881 km (0.093 R)
• M11: 16,322,923 km (0.063 R)
• M12: 17,363,526 km (0.118 R)
• M13: 21,353,899 km (0.04 R)
• M14: 32,411,575 km (0.074 R)
• M15: 33,361,372 km (0.096 R)
• M16: 35,032,381 km (0.05 R)
• M17: 45,062,768 km (0.059 R)
• M18: 45,735,959 km (0.029 R)
• M19: 52,098,805 km (0.096 R)
• M20: 53,026,760 km (0.098 R)
• M21: 74,440,948 km (0.062 R)
• M22: 81,936,848 km (0.106 R)
• M23: 84,203,705 km (0.115 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 391 - 16,166 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit