🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.55 AU - 0.55 AU

Year: 263 Days

Day: 24.1 Hours

Environment

Temp: -113 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,926,501 km

• M1: 23,936 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.3

Radius: 14.3

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.7 AU - 1.1 AU

Year: 551 Days

Day: 12 Hours

Environment

Temp: -149 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,926,501 km

• M1: 177,872 km (0.053 R)
• M2: 681,568 km (0.106 R)
• M3: 1,166,863 km (0.113 R)
• M4: 1,723,218 km (0.092 R)
• M5: 2,234,693 km (0.099 R)
• M6: 2,703,682 km (0.075 R)
• M7: 3,358,771 km (0.087 R)
• M8: 3,832,847 km (0.095 R)
• M9: 4,747,189 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.9

Radius: 10.5

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.56 AU - 1.7 AU

Year: 1344 Days

Day: 11 Hours

Environment

Temp: -189 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,926,501 km

• M1: 130,898 km (0.098 R)
• M2: 509,530 km (0.059 R)
• M3: 1,354,908 km (0.103 R)
• M4: 1,870,572 km (0.081 R)
• M5: 2,271,494 km (0.118 R)
• M6: 2,774,143 km (0.068 R)
• M7: 3,492,811 km (0.088 R)
• M8: 5,124,924 km (0.048 R)
• M9: 5,898,794 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.5

Radius: 10.5

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.59 AU - 2.53 AU

Year: 1909 Days

Day: 5.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,926,501 km

• M1: 130,599 km (0.106 R)
• M2: 505,042 km (0.097 R)
• M3: 1,087,726 km (0.117 R)
• M4: 1,628,971 km (0.091 R)
• M5: 2,427,525 km (0.119 R)
• M6: 3,999,349 km (0.114 R)
• M7: 5,045,039 km (0.11 R)
• M8: 6,639,752 km (0.068 R)
• M9: 7,322,517 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371

Radius: 11.8

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 4.16 AU - 5.04 AU

Year: 6370 Days

Day: 8.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 28,926,501 km

• M1: 146,756 km (0.086 R)
• M2: 525,089 km (0.11 R)
• M3: 893,099 km (0.085 R)
• M4: 2,294,233 km (0.077 R)
• M5: 3,349,496 km (0.1 R)
• M6: 3,964,344 km (0.067 R)
• M7: 4,908,905 km (0.093 R)
• M8: 5,420,679 km (0.085 R)
• M9: 6,615,218 km (0.034 R)
• M10: 8,123,613 km (0.048 R)
• M11: 10,933,510 km (0.12 R)
• M12: 12,730,629 km (0.096 R)
• M13: 13,699,425 km (0.111 R)
• M14: 16,015,050 km (0.098 R)
• M15: 16,721,900 km (0.09 R)
• M16: 18,071,872 km (0.117 R)
• M17: 19,559,473 km (0.051 R)
• M18: 20,028,013 km (0.059 R)
• M19: 23,370,628 km (0.105 R)
• M20: 27,483,522 km (0.107 R)
• M21: 27,987,218 km (0.082 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 472 - 16,814 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit