🌌 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: 751.3

Radius: 14.8

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.48 AU - 0.74 AU

Year: 318 Days

Day: 11 Hours

Environment

Temp: -154 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,281,609 km

• M1: 184,005 km (0.088 R)
• M2: 648,806 km (0.106 R)
• M3: 1,144,873 km (0.026 R)
• M4: 1,691,952 km (0.109 R)
• M5: 2,511,299 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.3

Radius: 12

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.57 AU - 0.89 AU

Year: 416 Days

Day: 13.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,281,609 km

• M1: 149,299 km (0.119 R)
• M2: 544,087 km (0.098 R)
• M3: 1,078,601 km (0.086 R)
• M4: 1,530,087 km (0.051 R)
• M5: 1,918,144 km (0.045 R)
• M6: 2,346,293 km (0.119 R)
• M7: 3,077,827 km (0.102 R)
• M8: 3,610,245 km (0.1 R)
• M9: 4,283,735 km (0.105 R)
• M10: 4,831,413 km (0.078 R)
• M11: 5,299,804 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.4

Radius: 11

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.67 AU - 0.87 AU

Year: 451 Days

Day: 6.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,281,609 km

• M1: 136,882 km (0.077 R)
• M2: 592,108 km (0.118 R)
• M3: 1,008,140 km (0.117 R)
• M4: 1,375,852 km (0.099 R)
• M5: 1,733,690 km (0.087 R)
• M6: 2,300,217 km (0.088 R)
• M7: 2,705,627 km (0.029 R)
• M8: 3,217,252 km (0.107 R)
• M9: 3,597,679 km (0.093 R)
• M10: 4,645,313 km (0.117 R)
• M11: 5,415,593 km (0.089 R)
• M12: 5,957,137 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.3

Radius: 12.1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.86 AU - 1.4 AU

Year: 801 Days

Day: 8.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,281,609 km

• M1: 150,495 km (0.103 R)
• M2: 566,677 km (0.044 R)
• M3: 1,148,912 km (0.087 R)
• M4: 1,850,526 km (0.119 R)
• M5: 2,282,415 km (0.076 R)
• M6: 2,943,637 km (0.114 R)
• M7: 3,320,175 km (0.067 R)
• M8: 3,716,909 km (0.09 R)
• M9: 4,171,686 km (0.119 R)
• M10: 4,894,394 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.4

Radius: 13.1

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.25 AU - 2.49 AU

Year: 2433 Days

Day: 13.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,281,609 km

• M1: 162,912 km (0.093 R)
• M2: 947,703 km (0.089 R)
• M3: 1,478,625 km (0.076 R)
• M4: 2,582,508 km (0.112 R)
• M5: 3,392,132 km (0.084 R)
• M6: 4,612,551 km (0.108 R)
• M7: 5,617,998 km (0.095 R)
• M8: 8,995,320 km (0.098 R)
• M9: 10,061,205 km (0.045 R)
• M10: 10,624,890 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430

Radius: 12.6

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.49 AU - 2.93 AU

Year: 2975 Days

Day: 14.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,281,609 km

• M1: 157,527 km (0.057 R)
• M2: 563,386 km (0.117 R)
• M3: 1,352,365 km (0.09 R)
• M4: 1,809,087 km (0.051 R)
• M5: 2,423,336 km (0.109 R)
• M6: 3,012,004 km (0.069 R)
• M7: 3,640,165 km (0.12 R)
• M8: 4,562,585 km (0.106 R)
• M9: 6,483,721 km (0.092 R)
• M10: 7,181,895 km (0.117 R)
• M11: 10,301,908 km (0.081 R)
• M12: 11,730,867 km (0.071 R)
• M13: 14,978,936 km (0.118 R)
• M14: 17,858,395 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 231.7

Radius: 5.9

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 5.24 AU - 6.88 AU

Year: 9948 Days

Day: 17.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 33,281,609 km

• M1: 73,303 km (0.094 R)
• M2: 446,550 km (0.094 R)
• M3: 663,766 km (0.112 R)
• M4: 1,053,169 km (0.117 R)
• M5: 1,277,715 km (0.115 R)
• M6: 1,521,710 km (0.067 R)
• M7: 2,732,106 km (0.104 R)
• M8: 3,521,085 km (0.12 R)
• M9: 4,878,686 km (0.104 R)
• M10: 5,302,497 km (0.066 R)
• M11: 5,538,412 km (0.113 R)
• M12: 5,905,226 km (0.101 R)
• M13: 6,353,721 km (0.058 R)
• M14: 7,463,737 km (0.081 R)
• M15: 9,025,838 km (0.103 R)
• M16: 9,235,275 km (0.11 R)
• M17: 10,840,909 km (0.119 R)
• M18: 11,561,671 km (0.093 R)
• M19: 12,991,977 km (0.063 R)
• M20: 14,593,571 km (0.114 R)
• M21: 16,508,574 km (0.119 R)
• M22: 17,332,260 km (0.099 R)
• M23: 17,656,289 km (0.047 R)
• M24: 18,584,992 km (0.102 R)
• M25: 22,168,160 km (0.111 R)
• M26: 22,858,555 km (0.061 R)
• M27: 24,769,518 km (0.088 R)
• M28: 26,186,060 km (0.053 R)
• M29: 28,009,209 km (0.093 R)
• M30: 31,137,750 km (0.098 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 12,146 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit