🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.55 AU - 0.59 AU

Year: 274 Days

Day: 12.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.41

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.5 AU - 0.74 AU

Year: 310 Days

Day: 22 Hours

Environment

Temp: -122 °C

Axial Tilt: 43.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.9

Radius: 8.4

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.8 AU - 1.3 AU

Year: 684 Days

Day: 14.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 14,772,192 km

• M1: 104,569 km (0.066 R)
• M2: 495,468 km (0.103 R)
• M3: 1,191,098 km (0.105 R)
• M4: 1,483,562 km (0.032 R)
• M5: 1,791,435 km (0.066 R)
• M6: 2,097,362 km (0.109 R)
• M7: 2,529,251 km (0.042 R)
• M8: 2,798,079 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.5

Radius: 9.1

Gravity: 9.87 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.91 AU - 1.51 AU

Year: 846 Days

Day: 5.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 14,772,192 km

• M1: 114,143 km (0.1 R)
• M2: 424,708 km (0.034 R)
• M3: 1,056,011 km (0.084 R)
• M4: 1,769,294 km (0.069 R)
• M5: 2,164,083 km (0.1 R)
• M6: 2,570,241 km (0.111 R)
• M7: 2,949,172 km (0.066 R)
• M8: 3,240,439 km (0.038 R)
• M9: 3,698,807 km (0.117 R)
• M10: 4,518,454 km (0.115 R)
• M11: 4,907,409 km (0.117 R)
• M12: 5,572,521 km (0.09 R)
• M13: 5,916,446 km (0.104 R)
• M14: 6,805,058 km (0.038 R)
• M15: 7,245,922 km (0.09 R)
• M16: 7,558,432 km (0.051 R)
• M17: 8,288,171 km (0.031 R)
• M18: 9,064,135 km (0.08 R)
• M19: 9,569,626 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.9

Radius: 8.8

Gravity: 12.37 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.71 AU - 1.75 AU

Year: 1447 Days

Day: 14.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 14,772,192 km

• M1: 109,506 km (0.116 R)
• M2: 445,353 km (0.079 R)
• M3: 793,617 km (0.116 R)
• M4: 1,341,444 km (0.084 R)
• M5: 1,651,261 km (0.112 R)
• M6: 2,020,319 km (0.059 R)
• M7: 2,616,168 km (0.096 R)
• M8: 3,105,502 km (0.118 R)
• M9: 3,863,814 km (0.119 R)
• M10: 4,154,782 km (0.036 R)
• M11: 4,499,754 km (0.113 R)
• M12: 5,203,762 km (0.073 R)
• M13: 5,582,245 km (0.044 R)
• M14: 7,067,751 km (0.116 R)
• M15: 8,134,983 km (0.066 R)
• M16: 8,523,787 km (0.111 R)
• M17: 9,177,979 km (0.112 R)
• M18: 9,798,212 km (0.101 R)
• M19: 10,101,746 km (0.057 R)
• M20: 10,446,270 km (0.066 R)
• M21: 11,415,814 km (0.038 R)
• M22: 12,094,838 km (0.102 R)
• M23: 13,244,947 km (0.083 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 479 - 13,966 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit