🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.7

Radius: 15

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.58 AU - 0.8 AU

Year: 403 Days

Day: 7.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 16,636,963 km

• M1: 186,549 km (0.083 R)
• M2: 857,495 km (0.081 R)
• M3: 1,337,555 km (0.109 R)
• M4: 1,824,496 km (0.118 R)
• M5: 2,479,286 km (0.077 R)
• M6: 3,335,584 km (0.032 R)
• M7: 4,037,647 km (0.099 R)
• M8: 5,147,364 km (0.058 R)
• M9: 5,912,706 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.7

Radius: 11.8

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.63 AU - 0.91 AU

Year: 475 Days

Day: 7.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 16,636,963 km

• M1: 146,756 km (0.114 R)
• M2: 516,861 km (0.118 R)
• M3: 890,556 km (0.077 R)
• M4: 1,463,217 km (0.105 R)
• M5: 2,072,529 km (0.064 R)
• M6: 2,487,214 km (0.04 R)
• M7: 2,867,791 km (0.102 R)
• M8: 3,564,169 km (0.085 R)
• M9: 4,643,967 km (0.119 R)
• M10: 5,362,186 km (0.1 R)
• M11: 5,766,400 km (0.112 R)
• M12: 6,362,697 km (0.067 R)
• M13: 6,796,231 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.7

Radius: 14.3

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.81 AU - 0.89 AU

Year: 551 Days

Day: 8.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 16,636,963 km

• M1: 177,872 km (0.048 R)
• M2: 794,963 km (0.067 R)
• M3: 1,509,143 km (0.107 R)
• M4: 2,013,587 km (0.068 R)
• M5: 2,492,600 km (0.035 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.2

Radius: 13

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.82 AU - 1.1 AU

Year: 661 Days

Day: 7.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 16,636,963 km

• M1: 162,463 km (0.087 R)
• M2: 612,154 km (0.113 R)
• M3: 1,162,824 km (0.101 R)
• M4: 1,796,371 km (0.107 R)
• M5: 2,265,211 km (0.118 R)
• M6: 2,889,782 km (0.088 R)
• M7: 3,639,567 km (0.104 R)
• M8: 4,054,401 km (0.054 R)
• M9: 4,544,484 km (0.047 R)
• M10: 5,395,098 km (0.08 R)
• M11: 5,902,384 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.2

Radius: 10.9

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.98 AU - 1.26 AU

Year: 833 Days

Day: 13.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 16,636,963 km

• M1: 135,536 km (0.082 R)
• M2: 753,375 km (0.067 R)
• M3: 1,241,662 km (0.071 R)
• M4: 1,773,034 km (0.113 R)
• M5: 2,412,415 km (0.084 R)
• M6: 2,753,947 km (0.083 R)
• M7: 3,510,314 km (0.099 R)
• M8: 3,951,777 km (0.083 R)
• M9: 5,934,099 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.3

Radius: 13.8

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 3.54 AU - 3.58 AU

Year: 4722 Days

Day: 6.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 16,636,963 km

• M1: 171,589 km (0.095 R)
• M2: 1,046,886 km (0.041 R)
• M3: 1,733,989 km (0.09 R)
• M4: 2,268,353 km (0.082 R)
• M5: 3,437,909 km (0.074 R)
• M6: 5,047,283 km (0.101 R)
• M7: 8,637,482 km (0.105 R)
• M8: 11,938,508 km (0.093 R)
• M9: 12,582,527 km (0.074 R)
• M10: 15,243,873 km (0.107 R)
• M11: 16,892,292 km (0.073 R)
• M12: 17,540,201 km (0.059 R)
• M13: 18,943,279 km (0.043 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.2

Radius: 14

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.99 AU - 4.89 AU

Year: 5497 Days

Day: 12 Hours

Environment

Temp: -218 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 16,636,963 km

• M1: 188,045 km (0.072 R)
• M2: 673,340 km (0.111 R)
• M3: 1,232,238 km (0.059 R)
• M4: 2,586,398 km (0.117 R)
• M5: 3,988,728 km (0.061 R)
• M6: 5,343,187 km (0.089 R)
• M7: 7,104,104 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.5

Radius: 13.6

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.31 AU - 6.33 AU

Year: 8625 Days

Day: 10.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 16,636,963 km

• M1: 169,345 km (0.102 R)
• M2: 1,329,177 km (0.101 R)
• M3: 2,227,662 km (0.114 R)
• M4: 2,894,120 km (0.099 R)
• M5: 4,112,894 km (0.074 R)
• M6: 5,769,391 km (0.093 R)
• M7: 12,456,416 km (0.102 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 495 - 11,688 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit