🌌 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: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.56 AU - 0.58 AU

Year: 282 Days

Day: 18 Hours

Environment

Temp: -127 °C

Axial Tilt: 144.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,393,477 km

• M1: 36,951 km (0.055 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.56 AU - 0.68 AU

Year: 320 Days

Day: 46.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,393,477 km

• M1: 470,635 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.1

Radius: 11

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.68 AU - 0.92 AU

Year: 469 Days

Day: 13.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 72,393,477 km

• M1: 136,882 km (0.07 R)
• M2: 959,970 km (0.12 R)
• M3: 1,726,509 km (0.073 R)
• M4: 3,133,327 km (0.057 R)
• M5: 3,614,883 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910

Radius: 14.8

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.92 AU - 1.5 AU

Year: 873 Days

Day: 5.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,393,477 km

• M1: 184,155 km (0.091 R)
• M2: 717,023 km (0.105 R)
• M3: 1,296,565 km (0.112 R)
• M4: 1,770,341 km (0.118 R)
• M5: 2,233,945 km (0.109 R)
• M6: 2,879,609 km (0.049 R)
• M7: 3,830,005 km (0.119 R)
• M8: 5,055,510 km (0.097 R)
• M9: 6,243,318 km (0.094 R)
• M10: 7,102,309 km (0.088 R)
• M11: 7,759,642 km (0.078 R)
• M12: 8,430,738 km (0.12 R)
• M13: 9,423,768 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.9

Radius: 9.2

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.64 AU - 1.98 AU

Year: 1597 Days

Day: 11.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,393,477 km

• M1: 114,592 km (0.079 R)
• M2: 437,275 km (0.102 R)
• M3: 1,008,439 km (0.047 R)
• M4: 1,374,655 km (0.036 R)
• M5: 2,642,796 km (0.103 R)
• M6: 3,255,399 km (0.108 R)
• M7: 4,031,962 km (0.112 R)
• M8: 4,503,046 km (0.039 R)
• M9: 4,968,594 km (0.117 R)
• M10: 5,646,422 km (0.099 R)
• M11: 6,661,743 km (0.118 R)
• M12: 7,239,939 km (0.103 R)
• M13: 8,556,699 km (0.066 R)
• M14: 9,892,458 km (0.109 R)
• M15: 10,401,540 km (0.075 R)
• M16: 11,325,456 km (0.082 R)
• M17: 11,882,858 km (0.078 R)
• M18: 13,458,722 km (0.111 R)
• M19: 13,748,194 km (0.081 R)
• M20: 14,511,741 km (0.061 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.3

Radius: 7.4

Gravity: 8.83 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 9.25 AU - 11.61 AU

Year: 22097 Days

Day: 19.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,393,477 km

• M1: 92,152 km (0.099 R)
• M2: 1,235,379 km (0.094 R)
• M3: 1,515,127 km (0.108 R)
• M4: 2,573,981 km (0.071 R)
• M5: 6,209,060 km (0.083 R)
• M6: 7,361,562 km (0.1 R)
• M7: 8,650,347 km (0.091 R)
• M8: 9,348,371 km (0.113 R)
• M9: 10,083,196 km (0.118 R)
• M10: 10,674,257 km (0.097 R)
• M11: 11,603,858 km (0.098 R)
• M12: 12,519,247 km (0.049 R)
• M13: 12,994,520 km (0.103 R)
• M14: 16,422,555 km (0.038 R)
• M15: 17,240,257 km (0.1 R)
• M16: 20,596,186 km (0.107 R)
• M17: 24,050,850 km (0.06 R)
• M18: 28,917,717 km (0.058 R)
• M19: 31,084,792 km (0.068 R)
• M20: 32,207,973 km (0.09 R)
• M21: 40,102,701 km (0.116 R)
• M22: 46,401,370 km (0.088 R)
• M23: 56,576,120 km (0.062 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 11,165 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit