🌌 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: 30.1

Radius: 10.6

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.42 AU - 0.6 AU

Year: 256 Days

Day: 9.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 65,542,134 km

• M1: 131,796 km (0.119 R)
• M2: 546,780 km (0.117 R)
• M3: 1,271,283 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.4

Radius: 11.6

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.44 AU - 0.66 AU

Year: 287 Days

Day: 5.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 65,542,134 km

• M1: 144,212 km (0.042 R)
• M2: 619,634 km (0.107 R)
• M3: 1,041,650 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.2

Radius: 10.4

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.67 AU - 0.71 AU

Year: 403 Days

Day: 14.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,542,134 km

• M1: 129,402 km (0.105 R)
• M2: 458,667 km (0.078 R)
• M3: 782,397 km (0.059 R)
• M4: 1,240,615 km (0.079 R)
• M5: 1,589,328 km (0.108 R)
• M6: 1,947,166 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226

Radius: 13.9

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.75 AU - 1.01 AU

Year: 580 Days

Day: 13.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,542,134 km

• M1: 172,935 km (0.104 R)
• M2: 612,454 km (0.077 R)
• M3: 1,171,950 km (0.083 R)
• M4: 1,686,118 km (0.116 R)
• M5: 2,571,288 km (0.054 R)
• M6: 3,167,585 km (0.099 R)
• M7: 3,771,662 km (0.116 R)
• M8: 4,864,474 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51

Radius: 8.2

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.93 AU - 1.01 AU

Year: 672 Days

Day: 11.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,542,134 km

• M1: 102,175 km (0.103 R)
• M2: 400,174 km (0.061 R)
• M3: 700,118 km (0.113 R)
• M4: 1,209,648 km (0.084 R)
• M5: 1,480,869 km (0.1 R)
• M6: 1,850,226 km (0.06 R)
• M7: 2,535,684 km (0.085 R)
• M8: 3,013,200 km (0.095 R)
• M9: 3,292,948 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.3

Radius: 10.6

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.46 AU - 1.94 AU

Year: 1558 Days

Day: 14.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,542,134 km

• M1: 131,945 km (0.108 R)
• M2: 489,634 km (0.107 R)
• M3: 880,234 km (0.087 R)
• M4: 1,220,270 km (0.05 R)
• M5: 2,145,832 km (0.093 R)
• M6: 2,499,780 km (0.066 R)
• M7: 2,907,285 km (0.116 R)
• M8: 3,406,643 km (0.066 R)
• M9: 3,753,710 km (0.05 R)
• M10: 4,106,312 km (0.113 R)
• M11: 5,586,284 km (0.096 R)
• M12: 6,287,748 km (0.086 R)
• M13: 8,066,018 km (0.115 R)
• M14: 8,900,625 km (0.109 R)
• M15: 9,434,689 km (0.096 R)
• M16: 9,990,146 km (0.086 R)
• M17: 10,601,851 km (0.054 R)
• M18: 12,783,437 km (0.077 R)
• M19: 13,261,402 km (0.116 R)
• M20: 14,042,303 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.2

Radius: 14.3

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.4 AU - 3.96 AU

Year: 3986 Days

Day: 11.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,542,134 km

• M1: 178,919 km (0.113 R)
• M2: 762,201 km (0.107 R)
• M3: 1,243,009 km (0.074 R)
• M4: 1,785,451 km (0.107 R)
• M5: 3,988,429 km (0.071 R)
• M6: 4,666,257 km (0.077 R)
• M7: 5,673,200 km (0.111 R)
• M8: 7,254,300 km (0.1 R)
• M9: 7,910,287 km (0.075 R)
• M10: 8,512,568 km (0.082 R)
• M11: 9,177,680 km (0.084 R)
• M12: 13,203,957 km (0.072 R)
• M13: 14,009,990 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 889

Radius: 3.8

Gravity: 61.57 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 6.66 AU - 8.06 AU

Year: 14035 Days

Day: 24.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,542,134 km

• M1: 47,273 km (0.096 R)
• M2: 315,502 km (0.062 R)
• M3: 482,453 km (0.061 R)
• M4: 1,694,645 km (0.075 R)
• M5: 2,074,922 km (0.074 R)
• M6: 2,422,438 km (0.075 R)
• M7: 2,855,375 km (0.104 R)
• M8: 3,698,209 km (0.035 R)
• M9: 4,934,336 km (0.107 R)
• M10: 6,175,998 km (0.058 R)
• M11: 7,290,503 km (0.116 R)
• M12: 9,742,861 km (0.082 R)
• M13: 10,533,186 km (0.111 R)
• M14: 15,960,597 km (0.082 R)
• M15: 17,785,840 km (0.116 R)
• M16: 31,487,958 km (0.109 R)
• M17: 34,853,910 km (0.105 R)
• M18: 35,242,117 km (0.092 R)
• M19: 42,731,136 km (0.116 R)
• M20: 42,879,088 km (0.096 R)
• M21: 43,175,890 km (0.064 R)
• M22: 54,272,761 km (0.106 R)
• M23: 59,453,635 km (0.044 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 16,238 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit