🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.53 AU - 0.73 AU

Year: 323 Days

Day: 25.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 19.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.6

Radius: 11.7

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.6 AU - 0.86 AU

Year: 403 Days

Day: 9 Hours

Environment

Temp: -131 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 64,937,008 km

• M1: 156,330 km (0.092 R)
• M2: 541,095 km (0.061 R)
• M3: 1,080,994 km (0.112 R)
• M4: 1,892,413 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.8

Radius: 9.1

Gravity: 11.99 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.88 AU - 2.54 AU

Year: 2121 Days

Day: 7.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,937,008 km

• M1: 113,246 km (0.108 R)
• M2: 777,759 km (0.102 R)
• M3: 1,116,599 km (0.078 R)
• M4: 1,484,160 km (0.05 R)
• M5: 1,837,810 km (0.097 R)
• M6: 2,369,780 km (0.108 R)
• M7: 5,728,551 km (0.104 R)
• M8: 6,359,705 km (0.11 R)
• M9: 6,664,136 km (0.081 R)
• M10: 7,822,921 km (0.102 R)
• M11: 8,302,682 km (0.087 R)
• M12: 9,076,252 km (0.095 R)
• M13: 10,081,849 km (0.055 R)
• M14: 11,320,220 km (0.082 R)
• M15: 12,228,429 km (0.056 R)
• M16: 14,283,455 km (0.058 R)
• M17: 15,343,356 km (0.067 R)
• M18: 16,872,097 km (0.059 R)
• M19: 17,242,950 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.9

Radius: 12.2

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.94 AU - 4.42 AU

Year: 5518 Days

Day: 5.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 64,937,008 km

• M1: 151,692 km (0.09 R)
• M2: 564,433 km (0.104 R)
• M3: 1,022,053 km (0.073 R)
• M4: 1,628,373 km (0.077 R)
• M5: 2,420,045 km (0.114 R)
• M6: 2,819,471 km (0.108 R)
• M7: 3,282,028 km (0.111 R)
• M8: 4,338,637 km (0.084 R)
• M9: 5,135,246 km (0.057 R)
• M10: 6,956,451 km (0.059 R)
• M11: 7,406,291 km (0.12 R)
• M12: 7,909,987 km (0.091 R)
• M13: 8,508,229 km (0.114 R)
• M14: 9,098,842 km (0.087 R)
• M15: 10,444,774 km (0.091 R)
• M16: 11,383,800 km (0.094 R)
• M17: 12,239,350 km (0.075 R)
• M18: 12,753,966 km (0.031 R)
• M19: 15,765,072 km (0.118 R)
• M20: 16,885,261 km (0.048 R)
• M21: 18,117,649 km (0.073 R)
• M22: 18,541,609 km (0.113 R)
• M23: 21,092,402 km (0.029 R)
• M24: 22,313,270 km (0.103 R)
• M25: 23,082,203 km (0.09 R)
• M26: 24,013,600 km (0.08 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 860.9

Radius: 6.4

Gravity: 21.02 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 7.26 AU - 8.34 AU

Year: 14066 Days

Day: 20.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 64,937,008 km

• M1: 80,035 km (0.09 R)
• M2: 680,222 km (0.092 R)
• M3: 1,473,090 km (0.033 R)
• M4: 1,956,142 km (0.119 R)
• M5: 2,474,498 km (0.076 R)
• M6: 2,932,417 km (0.117 R)
• M7: 4,107,210 km (0.11 R)
• M8: 5,308,480 km (0.083 R)
• M9: 5,604,385 km (0.084 R)
• M10: 5,911,210 km (0.055 R)
• M11: 6,269,796 km (0.082 R)
• M12: 6,685,230 km (0.086 R)
• M13: 8,138,274 km (0.114 R)
• M14: 8,582,131 km (0.113 R)
• M15: 8,938,473 km (0.059 R)
• M16: 13,467,848 km (0.095 R)
• M17: 13,672,647 km (0.094 R)
• M18: 14,801,064 km (0.115 R)
• M19: 16,764,835 km (0.03 R)
• M20: 18,810,735 km (0.118 R)
• M21: 22,902,686 km (0.048 R)
• M22: 26,361,389 km (0.118 R)
• M23: 27,992,155 km (0.116 R)
• M24: 29,920,472 km (0.03 R)
• M25: 32,056,879 km (0.103 R)
• M26: 37,703,002 km (0.099 R)
• M27: 40,050,940 km (0.05 R)
• M28: 42,788,432 km (0.11 R)
• M29: 43,528,941 km (0.102 R)
• M30: 46,889,358 km (0.094 R)
• M31: 49,927,392 km (0.116 R)
• M32: 52,416,551 km (0.052 R)
• M33: 53,435,013 km (0.115 R)
• M34: 58,543,930 km (0.102 R)
• M35: 60,749,900 km (0.12 R)
• M36: 61,873,380 km (0.043 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 528 - 11,367 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit