🌌 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: 942.2

Radius: 13.1

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.72 AU - 0.88 AU

Year: 462 Days

Day: 7.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,252,347 km

• M1: 162,912 km (0.06 R)
• M2: 624,721 km (0.043 R)
• M3: 1,088,923 km (0.069 R)
• M4: 1,624,782 km (0.052 R)
• M5: 2,205,372 km (0.046 R)
• M6: 2,716,398 km (0.069 R)
• M7: 3,355,031 km (0.089 R)
• M8: 4,351,054 km (0.119 R)
• M9: 4,823,335 km (0.084 R)
• M10: 5,414,695 km (0.103 R)
• M11: 5,889,818 km (0.111 R)
• M12: 6,297,322 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.6

Radius: 8.7

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.75 AU - 1.05 AU

Year: 551 Days

Day: 11 Hours

Environment

Temp: -151 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,252,347 km

• M1: 108,608 km (0.066 R)
• M2: 384,018 km (0.118 R)
• M3: 751,580 km (0.073 R)
• M4: 1,098,946 km (0.108 R)
• M5: 1,862,493 km (0.094 R)
• M6: 2,546,754 km (0.091 R)
• M7: 3,145,594 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.4

Radius: 11.3

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.9 AU - 1 AU

Year: 598 Days

Day: 10.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,252,347 km

• M1: 140,472 km (0.067 R)
• M2: 1,262,008 km (0.043 R)
• M3: 1,613,862 km (0.1 R)
• M4: 2,129,376 km (0.104 R)
• M5: 2,910,427 km (0.11 R)
• M6: 3,409,934 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.5

Radius: 14.2

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.24 AU - 1.48 AU

Year: 1024 Days

Day: 13.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,252,347 km

• M1: 176,675 km (0.105 R)
• M2: 675,883 km (0.069 R)
• M3: 1,121,236 km (0.091 R)
• M4: 1,682,826 km (0.112 R)
• M5: 2,186,822 km (0.031 R)
• M6: 2,890,680 km (0.119 R)
• M7: 3,755,655 km (0.029 R)
• M8: 4,242,596 km (0.045 R)
• M9: 4,740,158 km (0.077 R)
• M10: 5,344,683 km (0.092 R)
• M11: 5,926,918 km (0.105 R)
• M12: 6,512,145 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953

Radius: 12.8

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.29 AU - 1.87 AU

Year: 1282 Days

Day: 7.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,252,347 km

• M1: 159,172 km (0.103 R)
• M2: 595,699 km (0.043 R)
• M3: 1,106,575 km (0.083 R)
• M4: 1,520,064 km (0.036 R)
• M5: 2,597,617 km (0.067 R)
• M6: 3,801,431 km (0.043 R)
• M7: 4,443,805 km (0.074 R)
• M8: 5,157,686 km (0.066 R)
• M9: 5,586,583 km (0.08 R)
• M10: 6,016,078 km (0.098 R)
• M11: 6,614,919 km (0.101 R)
• M12: 7,465,981 km (0.097 R)
• M13: 8,129,896 km (0.038 R)
• M14: 8,923,363 km (0.107 R)
• M15: 10,193,300 km (0.11 R)
• M16: 10,906,582 km (0.113 R)
• M17: 12,739,007 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.1

Radius: 9.9

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.9 AU - 2.12 AU

Year: 1840 Days

Day: 9.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,252,347 km

• M1: 123,119 km (0.096 R)
• M2: 460,612 km (0.096 R)
• M3: 1,303,745 km (0.095 R)
• M4: 2,066,545 km (0.075 R)
• M5: 3,793,353 km (0.119 R)
• M6: 4,313,056 km (0.079 R)
• M7: 4,700,365 km (0.069 R)
• M8: 5,413,648 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.5

Radius: 8.5

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.36 AU - 3.46 AU

Year: 3205 Days

Day: 11.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,252,347 km

• M1: 105,766 km (0.033 R)
• M2: 713,133 km (0.114 R)
• M3: 995,873 km (0.097 R)
• M4: 1,940,883 km (0.094 R)
• M5: 2,471,506 km (0.12 R)
• M6: 3,578,082 km (0.088 R)
• M7: 6,416,552 km (0.113 R)
• M8: 6,924,736 km (0.087 R)
• M9: 7,329,697 km (0.076 R)
• M10: 11,092,533 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.1

Radius: 14.6

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.01 AU - 4.35 AU

Year: 5518 Days

Day: 12.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,252,347 km

• M1: 182,509 km (0.071 R)
• M2: 704,456 km (0.071 R)
• M3: 1,275,471 km (0.047 R)
• M4: 1,996,234 km (0.107 R)
• M5: 2,702,336 km (0.112 R)
• M6: 3,421,602 km (0.115 R)
• M7: 3,931,133 km (0.083 R)
• M8: 4,698,720 km (0.044 R)
• M9: 5,274,223 km (0.081 R)
• M10: 6,600,707 km (0.079 R)
• M11: 7,541,378 km (0.046 R)
• M12: 8,490,278 km (0.113 R)
• M13: 9,097,047 km (0.12 R)
• M14: 12,371,445 km (0.038 R)
• M15: 13,205,902 km (0.051 R)
• M16: 14,414,204 km (0.086 R)
• M17: 16,301,680 km (0.087 R)
• M18: 16,924,007 km (0.062 R)
• M19: 18,616,557 km (0.072 R)
• M20: 21,069,963 km (0.12 R)
• M21: 23,970,216 km (0.062 R)
• M22: 24,938,863 km (0.081 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 501 - 15,101 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit