🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.56 AU - 0.76 AU

Year: 352 Days

Day: 29.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 23.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,305,472 km

• M1: 28,274 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.2

Radius: 11.1

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.66 AU - 0.88 AU

Year: 443 Days

Day: 5.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,305,472 km

• M1: 138,079 km (0.081 R)
• M2: 510,727 km (0.064 R)
• M3: 1,100,891 km (0.095 R)
• M4: 1,695,093 km (0.118 R)
• M5: 2,132,966 km (0.11 R)
• M6: 2,607,491 km (0.118 R)
• M7: 3,575,688 km (0.085 R)
• M8: 4,182,457 km (0.107 R)
• M9: 5,298,457 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.4

Radius: 12.7

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.63 AU - 0.99 AU

Year: 478 Days

Day: 14.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,305,472 km

• M1: 157,975 km (0.118 R)
• M2: 553,363 km (0.085 R)
• M3: 1,421,928 km (0.11 R)
• M4: 2,089,583 km (0.114 R)
• M5: 2,655,213 km (0.085 R)
• M6: 3,495,803 km (0.076 R)
• M7: 4,083,573 km (0.108 R)
• M8: 4,783,542 km (0.102 R)
• M9: 5,237,721 km (0.071 R)
• M10: 5,918,391 km (0.044 R)
• M11: 6,736,542 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936

Radius: 13.5

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.94 AU - 1.1 AU

Year: 676 Days

Day: 14.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 98.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,305,472 km

• M1: 167,849 km (0.107 R)
• M2: 606,320 km (0.088 R)
• M3: 1,078,152 km (0.114 R)
• M4: 1,553,873 km (0.089 R)
• M5: 2,842,060 km (0.067 R)
• M6: 3,718,704 km (0.091 R)
• M7: 4,403,713 km (0.117 R)
• M8: 5,171,598 km (0.067 R)
• M9: 5,674,098 km (0.065 R)
• M10: 6,209,209 km (0.116 R)
• M11: 6,952,860 km (0.115 R)
• M12: 7,589,998 km (0.057 R)
• M13: 8,466,192 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.1

Radius: 8.9

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.67 AU - 1.79 AU

Year: 1493 Days

Day: 5.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,305,472 km

• M1: 111,002 km (0.083 R)
• M2: 485,595 km (0.073 R)
• M3: 872,604 km (0.098 R)
• M4: 1,196,334 km (0.046 R)
• M5: 1,513,182 km (0.03 R)
• M6: 1,957,638 km (0.11 R)
• M7: 2,262,518 km (0.114 R)
• M8: 2,886,940 km (0.073 R)
• M9: 3,734,262 km (0.075 R)
• M10: 4,494,818 km (0.12 R)
• M11: 4,776,510 km (0.057 R)
• M12: 5,252,082 km (0.093 R)
• M13: 6,390,821 km (0.066 R)
• M14: 7,712,967 km (0.099 R)
• M15: 8,090,702 km (0.062 R)
• M16: 8,537,550 km (0.068 R)
• M17: 9,178,877 km (0.1 R)
• M18: 9,914,599 km (0.113 R)
• M19: 10,922,440 km (0.117 R)
• M20: 11,538,185 km (0.088 R)
• M21: 11,854,584 km (0.114 R)

Asteroid Belt

Center: 2.71 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.9

Radius: 10.1

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.41 AU - 3.97 AU

Year: 4650 Days

Day: 9.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,305,472 km

• M1: 125,812 km (0.069 R)
• M2: 644,168 km (0.086 R)
• M3: 1,004,101 km (0.116 R)
• M4: 1,461,721 km (0.12 R)
• M5: 1,875,957 km (0.119 R)
• M6: 2,493,348 km (0.103 R)
• M7: 3,074,087 km (0.049 R)
• M8: 3,973,020 km (0.094 R)
• M9: 4,505,439 km (0.104 R)
• M10: 5,038,456 km (0.102 R)
• M11: 5,916,446 km (0.094 R)
• M12: 6,338,013 km (0.089 R)
• M13: 6,695,253 km (0.036 R)
• M14: 8,100,874 km (0.079 R)
• M15: 9,164,366 km (0.025 R)
• M16: 11,126,940 km (0.109 R)
• M17: 11,607,448 km (0.086 R)
• M18: 15,417,856 km (0.108 R)
• M19: 15,914,820 km (0.108 R)
• M20: 16,680,312 km (0.041 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 281.6

Radius: 4.2

Gravity: 15.96 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 8.85 AU - 8.85 AU

Year: 17271 Days

Day: 24.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,305,472 km

• M1: 52,359 km (0.079 R)
• M2: 198,965 km (0.084 R)
• M3: 414,984 km (0.081 R)
• M4: 590,612 km (0.117 R)
• M5: 778,657 km (0.092 R)
• M6: 953,088 km (0.118 R)
• M7: 1,779,317 km (0.088 R)
• M8: 2,249,653 km (0.107 R)
• M9: 2,712,060 km (0.077 R)
• M10: 4,388,454 km (0.093 R)
• M11: 6,382,294 km (0.096 R)
• M12: 7,900,712 km (0.1 R)
• M13: 8,486,837 km (0.05 R)
• M14: 8,814,157 km (0.117 R)
• M15: 9,198,623 km (0.074 R)
• M16: 9,846,831 km (0.04 R)
• M17: 12,385,956 km (0.107 R)
• M18: 19,023,464 km (0.084 R)
• M19: 19,503,074 km (0.062 R)
• M20: 22,374,007 km (0.089 R)
• M21: 26,689,457 km (0.079 R)
• M22: 31,750,802 km (0.078 R)
• M23: 47,556,714 km (0.12 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: 323 - 11,699 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit