🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.6

Radius: 12.9

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.45 AU - 0.57 AU

Year: 251 Days

Day: 9.2 Hours

Environment

Temp: -133 °C

Axial Tilt: 54.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 18,730,028 km

• M1: 160,369 km (0.103 R)
• M2: 636,389 km (0.086 R)
• M3: 1,086,679 km (0.101 R)
• M4: 1,803,702 km (0.117 R)
• M5: 2,455,649 km (0.102 R)
• M6: 4,075,644 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341

Radius: 14.6

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.56 AU - 0.68 AU

Year: 337 Days

Day: 7.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 77.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 18,730,028 km

• M1: 181,612 km (0.067 R)
• M2: 640,279 km (0.102 R)
• M3: 1,298,659 km (0.094 R)
• M4: 1,835,117 km (0.077 R)
• M5: 2,595,373 km (0.068 R)
• M6: 3,174,616 km (0.12 R)
• M7: 3,632,984 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.8

Radius: 14.3

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.51 AU - 0.81 AU

Year: 370 Days

Day: 11.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 18,730,028 km

• M1: 177,872 km (0.104 R)
• M2: 627,264 km (0.116 R)
• M3: 1,093,112 km (0.059 R)
• M4: 1,753,287 km (0.12 R)
• M5: 2,449,815 km (0.091 R)
• M6: 3,131,831 km (0.092 R)
• M7: 3,697,461 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328

Radius: 8.2

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.74 AU - 1 AU

Year: 560 Days

Day: 7.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 18,730,028 km

• M1: 102,026 km (0.119 R)
• M2: 478,713 km (0.1 R)
• M3: 890,556 km (0.084 R)
• M4: 1,404,724 km (0.041 R)
• M5: 1,665,024 km (0.078 R)
• M6: 2,063,104 km (0.099 R)
• M7: 2,609,884 km (0.028 R)
• M8: 2,891,727 km (0.088 R)
• M9: 3,849,153 km (0.033 R)
• M10: 4,548,523 km (0.084 R)
• M11: 5,188,503 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.2

Radius: 12.2

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.21 AU - 1.71 AU

Year: 1218 Days

Day: 14.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 18,730,028 km

• M1: 151,842 km (0.073 R)
• M2: 690,693 km (0.058 R)
• M3: 1,121,086 km (0.076 R)
• M4: 1,558,211 km (0.114 R)
• M5: 2,153,013 km (0.119 R)
• M6: 2,739,436 km (0.115 R)
• M7: 3,430,578 km (0.09 R)
• M8: 4,098,234 km (0.115 R)
• M9: 5,464,062 km (0.079 R)
• M10: 5,930,060 km (0.099 R)
• M11: 7,113,379 km (0.087 R)
• M12: 8,392,889 km (0.114 R)
• M13: 9,160,476 km (0.068 R)
• M14: 10,036,671 km (0.068 R)
• M15: 10,934,707 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.1

Radius: 9.7

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.28 AU - 1.72 AU

Year: 1268 Days

Day: 14.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 18,730,028 km

• M1: 120,576 km (0.052 R)
• M2: 569,818 km (0.107 R)
• M3: 902,225 km (0.117 R)
• M4: 1,275,471 km (0.056 R)
• M5: 2,156,304 km (0.119 R)
• M6: 2,497,387 km (0.087 R)
• M7: 3,208,575 km (0.066 R)
• M8: 3,626,701 km (0.067 R)
• M9: 4,112,445 km (0.096 R)
• M10: 5,327,031 km (0.082 R)
• M11: 6,162,385 km (0.06 R)
• M12: 6,968,418 km (0.115 R)
• M13: 8,422,659 km (0.043 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.7

Radius: 14.7

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.13 AU - 2.51 AU

Year: 2439 Days

Day: 7.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 18,730,028 km

• M1: 182,809 km (0.109 R)
• M2: 764,595 km (0.111 R)
• M3: 1,240,765 km (0.096 R)
• M4: 1,700,030 km (0.101 R)
• M5: 2,768,159 km (0.117 R)
• M6: 3,253,604 km (0.038 R)
• M7: 4,399,524 km (0.093 R)
• M8: 4,877,938 km (0.108 R)
• M9: 5,480,219 km (0.116 R)
• M10: 6,992,803 km (0.11 R)
• M11: 8,019,643 km (0.105 R)
• M12: 8,676,527 km (0.053 R)
• M13: 9,564,241 km (0.06 R)
• M14: 11,299,726 km (0.072 R)
• M15: 13,277,858 km (0.11 R)
• M16: 13,901,233 km (0.086 R)
• M17: 14,851,029 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348.1

Radius: 12.1

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.37 AU - 3.45 AU

Year: 3426 Days

Day: 6.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 78 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,730,028 km

• M1: 150,944 km (0.096 R)
• M2: 770,728 km (0.063 R)
• M3: 1,194,240 km (0.115 R)
• M4: 1,576,762 km (0.084 R)
• M5: 2,472,853 km (0.104 R)
• M6: 3,555,193 km (0.091 R)
• M7: 4,005,333 km (0.061 R)
• M8: 5,089,768 km (0.036 R)
• M9: 5,738,574 km (0.113 R)
• M10: 6,970,363 km (0.049 R)
• M11: 9,915,048 km (0.103 R)
• M12: 16,639,921 km (0.113 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 275 - 17,847 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit