🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.47 AU - 0.65 AU

Year: 271 Days

Day: 24.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.5

Radius: 12.9

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.73 AU - 0.79 AU

Year: 428 Days

Day: 8.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 85,028,357 km

• M1: 160,369 km (0.025 R)
• M2: 630,705 km (0.091 R)
• M3: 1,111,811 km (0.088 R)
• M4: 1,821,504 km (0.094 R)
• M5: 2,392,220 km (0.08 R)
• M6: 3,472,466 km (0.115 R)
• M7: 4,252,619 km (0.1 R)
• M8: 4,699,019 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.6

Radius: 12.4

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.8 AU - 0.96 AU

Year: 533 Days

Day: 10.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,028,357 km

• M1: 154,684 km (0.108 R)
• M2: 549,323 km (0.109 R)
• M3: 957,875 km (0.095 R)
• M4: 1,494,632 km (0.108 R)
• M5: 2,056,223 km (0.112 R)
• M6: 3,402,753 km (0.075 R)
• M7: 3,907,048 km (0.081 R)
• M8: 4,725,797 km (0.062 R)
• M9: 5,134,199 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.7

Radius: 14.9

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.77 AU - 1.03 AU

Year: 551 Days

Day: 9.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,028,357 km

• M1: 185,352 km (0.115 R)
• M2: 840,890 km (0.113 R)
• M3: 1,328,429 km (0.069 R)
• M4: 1,841,550 km (0.095 R)
• M5: 2,636,214 km (0.102 R)
• M6: 3,126,595 km (0.093 R)
• M7: 3,829,705 km (0.071 R)
• M8: 4,636,936 km (0.081 R)
• M9: 5,201,817 km (0.1 R)
• M10: 6,193,950 km (0.098 R)
• M11: 6,797,727 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.7

Radius: 14.2

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.96 AU - 1.18 AU

Year: 715 Days

Day: 10.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,028,357 km

• M1: 176,525 km (0.106 R)
• M2: 646,263 km (0.111 R)
• M3: 1,193,043 km (0.069 R)
• M4: 1,676,543 km (0.052 R)
• M5: 2,236,189 km (0.063 R)
• M6: 2,931,520 km (0.07 R)
• M7: 3,438,657 km (0.103 R)
• M8: 4,206,543 km (0.12 R)
• M9: 5,187,605 km (0.041 R)
• M10: 6,238,830 km (0.074 R)
• M11: 6,693,308 km (0.077 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 752.9

Radius: 8

Gravity: 11.76 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 8.24 AU - 13.12 AU

Year: 22536 Days

Day: 23.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 85,028,357 km

• M1: 100,829 km (0.066 R)
• M2: 358,436 km (0.094 R)
• M3: 1,229,994 km (0.08 R)
• M4: 1,734,288 km (0.072 R)
• M5: 2,170,815 km (0.045 R)
• M6: 2,654,165 km (0.083 R)
• M7: 3,835,241 km (0.097 R)
• M8: 4,542,390 km (0.108 R)
• M9: 4,870,907 km (0.088 R)
• M10: 5,413,498 km (0.083 R)
• M11: 5,995,733 km (0.101 R)
• M12: 7,334,036 km (0.112 R)
• M13: 7,787,168 km (0.106 R)
• M14: 10,972,405 km (0.101 R)
• M15: 11,767,668 km (0.093 R)
• M16: 17,102,328 km (0.102 R)
• M17: 17,899,236 km (0.118 R)
• M18: 19,282,118 km (0.116 R)
• M19: 19,758,438 km (0.025 R)
• M20: 29,858,837 km (0.088 R)
• M21: 41,182,648 km (0.059 R)
• M22: 42,772,874 km (0.114 R)
• M23: 46,755,468 km (0.096 R)
• M24: 47,788,441 km (0.096 R)
• M25: 49,543,673 km (0.058 R)
• M26: 51,523,601 km (0.114 R)
• M27: 54,496,709 km (0.116 R)
• M28: 59,568,975 km (0.117 R)
• M29: 63,888,613 km (0.082 R)
• M30: 65,373,671 km (0.033 R)
• M31: 66,017,092 km (0.111 R)
• M32: 67,972,785 km (0.047 R)
• M33: 75,474,220 km (0.12 R)
• M34: 82,755,896 km (0.078 R)
• M35: 84,773,822 km (0.1 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 14,614 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit