🌌 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: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.58 AU - 0.72 AU

Year: 338 Days

Day: 32.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 38,451,806 km

• M1: 89,908 km (0.068 R)
• M2: 208,839 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.7

Radius: 12.3

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.59 AU - 0.77 AU

Year: 362 Days

Day: 13.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,451,806 km

• M1: 153,039 km (0.048 R)
• M2: 742,454 km (0.115 R)
• M3: 1,195,885 km (0.11 R)
• M4: 1,906,176 km (0.032 R)
• M5: 2,560,068 km (0.12 R)
• M6: 2,945,732 km (0.071 R)
• M7: 3,660,211 km (0.105 R)
• M8: 4,045,725 km (0.101 R)
• M9: 4,646,211 km (0.071 R)
• M10: 5,321,346 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.1

Radius: 12.3

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.74 AU - 0.82 AU

Year: 445 Days

Day: 14.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 38,451,806 km

• M1: 153,487 km (0.099 R)
• M2: 796,160 km (0.078 R)
• M3: 1,458,878 km (0.101 R)
• M4: 2,218,237 km (0.093 R)
• M5: 3,162,349 km (0.104 R)
• M6: 4,135,334 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.9

Radius: 11.2

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.03 AU - 1.69 AU

Year: 1024 Days

Day: 14.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,451,806 km

• M1: 139,276 km (0.109 R)
• M2: 647,908 km (0.119 R)
• M3: 1,198,129 km (0.096 R)
• M4: 1,843,345 km (0.109 R)
• M5: 2,345,994 km (0.082 R)
• M6: 2,697,250 km (0.119 R)
• M7: 3,375,078 km (0.082 R)
• M8: 4,028,820 km (0.104 R)
• M9: 4,409,846 km (0.112 R)
• M10: 5,700,726 km (0.072 R)
• M11: 6,670,868 km (0.113 R)
• M12: 7,747,524 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.2

Radius: 10.4

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 2.47 AU - 3.11 AU

Year: 3009 Days

Day: 12.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,451,806 km

• M1: 130,449 km (0.108 R)
• M2: 827,127 km (0.083 R)
• M3: 1,573,022 km (0.104 R)
• M4: 2,365,142 km (0.088 R)
• M5: 3,878,026 km (0.078 R)
• M6: 5,498,769 km (0.113 R)
• M7: 7,386,544 km (0.11 R)
• M8: 8,275,455 km (0.054 R)
• M9: 13,906,618 km (0.095 R)
• M10: 14,437,541 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.5

Radius: 11.1

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 4.94 AU - 5.1 AU

Year: 7262 Days

Day: 8.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 38,451,806 km

• M1: 142,866 km (0.115 R)
• M2: 513,569 km (0.113 R)
• M3: 859,141 km (0.11 R)
• M4: 1,417,141 km (0.11 R)
• M5: 2,063,104 km (0.078 R)
• M6: 2,445,925 km (0.08 R)
• M7: 3,226,976 km (0.079 R)
• M8: 3,652,731 km (0.115 R)
• M9: 4,590,710 km (0.119 R)
• M10: 5,220,367 km (0.084 R)
• M11: 6,071,130 km (0.067 R)
• M12: 7,421,850 km (0.09 R)
• M13: 10,708,664 km (0.114 R)
• M14: 12,506,831 km (0.051 R)
• M15: 13,392,600 km (0.106 R)
• M16: 15,853,335 km (0.059 R)
• M17: 19,754,698 km (0.06 R)
• M18: 22,124,627 km (0.12 R)
• M19: 22,523,904 km (0.084 R)
• M20: 23,584,553 km (0.084 R)
• M21: 24,849,403 km (0.112 R)
• M22: 26,515,774 km (0.079 R)
• M23: 28,442,894 km (0.093 R)
• M24: 30,363,281 km (0.096 R)
• M25: 32,062,564 km (0.118 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 316 - 13,031 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit