🌌 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: 218.5

Radius: 10.6

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.45 AU - 0.71 AU

Year: 300 Days

Day: 9.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,185,712 km

• M1: 131,796 km (0.046 R)
• M2: 464,501 km (0.08 R)
• M3: 892,351 km (0.104 R)
• M4: 1,261,708 km (0.12 R)
• M5: 1,693,448 km (0.082 R)
• M6: 2,125,337 km (0.091 R)
• M7: 2,466,270 km (0.107 R)
• M8: 2,818,573 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.4

Radius: 11.9

Gravity: 6.7 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.98 AU - 0.98 AU

Year: 658 Days

Day: 13.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,185,712 km

• M1: 148,102 km (0.07 R)
• M2: 712,535 km (0.083 R)
• M3: 1,444,517 km (0.055 R)
• M4: 2,120,251 km (0.119 R)
• M5: 2,543,164 km (0.103 R)
• M6: 3,199,599 km (0.1 R)
• M7: 4,102,871 km (0.102 R)
• M8: 4,581,435 km (0.12 R)
• M9: 5,747,550 km (0.045 R)
• M10: 6,410,867 km (0.101 R)
• M11: 7,373,978 km (0.112 R)
• M12: 7,986,881 km (0.08 R)
• M13: 8,608,161 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962

Radius: 14.7

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.85 AU - 1.13 AU

Year: 668 Days

Day: 9.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,185,712 km

• M1: 182,809 km (0.11 R)
• M2: 669,151 km (0.112 R)
• M3: 1,297,462 km (0.103 R)
• M4: 1,924,577 km (0.073 R)
• M5: 2,441,138 km (0.067 R)
• M6: 3,177,160 km (0.117 R)
• M7: 4,258,603 km (0.117 R)
• M8: 4,902,921 km (0.056 R)
• M9: 5,688,010 km (0.12 R)
• M10: 6,769,902 km (0.113 R)
• M11: 7,603,611 km (0.082 R)
• M12: 8,229,678 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.7

Radius: 14.5

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.89 AU - 1.11 AU

Year: 678 Days

Day: 8.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 21,185,712 km

• M1: 180,265 km (0.036 R)
• M2: 2,366,040 km (0.083 R)
• M3: 2,954,558 km (0.052 R)
• M4: 3,868,152 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.8

Radius: 8.5

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.12 AU - 1.26 AU

Year: 880 Days

Day: 9.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,185,712 km

• M1: 105,766 km (0.119 R)
• M2: 392,545 km (0.105 R)
• M3: 740,061 km (0.076 R)
• M4: 1,152,203 km (0.115 R)
• M5: 1,423,723 km (0.117 R)
• M6: 2,070,285 km (0.112 R)
• M7: 2,422,438 km (0.085 R)
• M8: 2,924,788 km (0.087 R)
• M9: 3,247,770 km (0.071 R)
• M10: 3,666,793 km (0.084 R)
• M11: 4,137,279 km (0.114 R)
• M12: 4,461,906 km (0.106 R)
• M13: 4,856,096 km (0.079 R)
• M14: 6,347,737 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.4

Radius: 10.8

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.53 AU - 2.49 AU

Year: 1933 Days

Day: 5.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,185,712 km

• M1: 135,087 km (0.1 R)
• M2: 471,832 km (0.106 R)
• M3: 956,678 km (0.094 R)
• M4: 1,796,371 km (0.11 R)
• M5: 2,221,678 km (0.119 R)
• M6: 2,584,154 km (0.102 R)
• M7: 3,588,404 km (0.097 R)
• M8: 3,987,232 km (0.081 R)
• M9: 4,603,126 km (0.11 R)
• M10: 5,843,891 km (0.105 R)
• M11: 6,518,129 km (0.06 R)
• M12: 7,585,809 km (0.11 R)
• M13: 10,592,427 km (0.073 R)
• M14: 11,523,674 km (0.11 R)
• M15: 11,954,815 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.7

Radius: 10

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.03 AU - 3.51 AU

Year: 4011 Days

Day: 8.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 21,185,712 km

• M1: 124,465 km (0.106 R)
• M2: 441,763 km (0.066 R)
• M3: 770,130 km (0.038 R)
• M4: 1,718,431 km (0.094 R)
• M5: 2,161,091 km (0.031 R)
• M6: 2,804,661 km (0.025 R)
• M7: 3,259,887 km (0.064 R)
• M8: 3,590,349 km (0.093 R)
• M9: 5,542,601 km (0.03 R)
• M10: 5,855,111 km (0.105 R)
• M11: 6,206,965 km (0.077 R)
• M12: 9,890,214 km (0.105 R)
• M13: 10,390,619 km (0.118 R)
• M14: 13,150,251 km (0.1 R)
• M15: 15,325,105 km (0.076 R)
• M16: 18,181,826 km (0.077 R)
• M17: 18,758,077 km (0.056 R)
• M18: 19,645,342 km (0.117 R)
• M19: 20,374,931 km (0.093 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 465 - 15,374 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit