🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.49 AU - 0.75 AU

Year: 320 Days

Day: 37.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,701,057 km

• M1: 584,329 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.6

Radius: 12.9

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.64 AU - 0.96 AU

Year: 469 Days

Day: 11.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,701,057 km

• M1: 160,668 km (0.081 R)
• M2: 598,541 km (0.088 R)
• M3: 1,013,675 km (0.096 R)
• M4: 1,452,895 km (0.049 R)
• M5: 2,021,516 km (0.044 R)
• M6: 2,464,775 km (0.096 R)
• M7: 2,984,328 km (0.104 R)
• M8: 4,050,811 km (0.118 R)
• M9: 5,525,397 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.7

Radius: 9.6

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.79 AU - 1.07 AU

Year: 588 Days

Day: 7.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 19,701,057 km

• M1: 132,394 km (0.119 R)
• M2: 664,963 km (0.058 R)
• M3: 1,121,984 km (0.117 R)
• M4: 1,797,718 km (0.092 R)
• M5: 2,868,240 km (0.081 R)
• M6: 4,686,901 km (0.103 R)
• M7: 6,300,614 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.8

Radius: 14.3

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.2 AU - 1.4 AU

Year: 972 Days

Day: 11.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 19,701,057 km

• M1: 177,872 km (0.116 R)
• M2: 661,522 km (0.111 R)
• M3: 1,106,575 km (0.057 R)
• M4: 1,573,470 km (0.115 R)
• M5: 2,102,598 km (0.109 R)
• M6: 2,676,755 km (0.05 R)
• M7: 3,326,309 km (0.108 R)
• M8: 3,965,391 km (0.104 R)
• M9: 5,154,843 km (0.113 R)
• M10: 5,950,106 km (0.117 R)
• M11: 6,639,453 km (0.078 R)
• M12: 7,556,637 km (0.07 R)
• M13: 8,072,451 km (0.115 R)
• M14: 9,003,548 km (0.073 R)
• M15: 10,005,106 km (0.104 R)

Asteroid Belt

Center: 3.09 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.1

Radius: 12.5

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 4.22 AU - 5.54 AU

Year: 7072 Days

Day: 13.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 19,701,057 km

• M1: 155,881 km (0.077 R)
• M2: 652,097 km (0.109 R)
• M3: 1,492,688 km (0.069 R)
• M4: 1,948,512 km (0.098 R)
• M5: 2,825,156 km (0.094 R)
• M6: 3,718,255 km (0.096 R)
• M7: 4,108,855 km (0.103 R)
• M8: 4,635,739 km (0.094 R)
• M9: 6,437,795 km (0.11 R)
• M10: 8,701,659 km (0.081 R)
• M11: 10,736,340 km (0.102 R)
• M12: 13,520,656 km (0.085 R)
• M13: 15,325,853 km (0.073 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 16,338 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit