🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.54 AU - 0.62 AU

Year: 281 Days

Day: 17.3 Hours

Environment

Temp: -135 °C

Axial Tilt: 26.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.48 AU - 0.72 AU

Year: 296 Days

Day: 18.8 Hours

Environment

Temp: -119 °C

Axial Tilt: 123.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 69,150,327 km

• M1: 325,525 km (0.084 R)
• M2: 389,254 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.2

Radius: 12.8

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.64 AU - 0.78 AU

Year: 380 Days

Day: 7.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,150,327 km

• M1: 167,400 km (0.108 R)
• M2: 601,533 km (0.086 R)
• M3: 1,023,100 km (0.027 R)
• M4: 1,444,218 km (0.082 R)
• M5: 1,888,972 km (0.065 R)
• M6: 2,549,148 km (0.102 R)
• M7: 2,977,147 km (0.096 R)
• M8: 3,648,094 km (0.114 R)
• M9: 4,154,482 km (0.083 R)
• M10: 4,827,074 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.7

Radius: 9.1

Gravity: 11.13 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.98 AU - 1.14 AU

Year: 694 Days

Day: 5.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,150,327 km

• M1: 113,246 km (0.07 R)
• M2: 450,888 km (0.098 R)
• M3: 785,688 km (0.074 R)
• M4: 1,157,439 km (0.116 R)
• M5: 1,580,950 km (0.111 R)
• M6: 2,308,744 km (0.073 R)
• M7: 3,531,258 km (0.068 R)
• M8: 5,323,590 km (0.041 R)
• M9: 5,705,214 km (0.092 R)
• M10: 6,374,814 km (0.107 R)
• M11: 6,739,683 km (0.095 R)
• M12: 8,544,582 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.7

Radius: 10.9

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 5.31 AU - 5.35 AU

Year: 7824 Days

Day: 13.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,150,327 km

• M1: 135,536 km (0.074 R)
• M2: 992,881 km (0.11 R)
• M3: 1,406,370 km (0.032 R)
• M4: 3,018,137 km (0.045 R)
• M5: 4,219,707 km (0.091 R)
• M6: 6,018,921 km (0.096 R)
• M7: 6,842,906 km (0.077 R)
• M8: 10,401,091 km (0.114 R)
• M9: 12,129,096 km (0.118 R)
• M10: 17,802,895 km (0.108 R)
• M11: 23,026,403 km (0.089 R)
• M12: 27,724,076 km (0.065 R)
• M13: 29,890,702 km (0.1 R)
• M14: 30,500,762 km (0.08 R)
• M15: 34,115,495 km (0.109 R)
• M16: 36,600,914 km (0.088 R)
• M17: 37,769,573 km (0.085 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 453.7

Radius: 3.1

Gravity: 47.21 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.11 AU - 7.65 AU

Year: 10246 Days

Day: 23.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,150,327 km

• M1: 46,824 km (0.041 R)
• M2: 647,310 km (0.111 R)
• M3: 1,195,586 km (0.117 R)
• M4: 1,591,123 km (0.083 R)
• M5: 2,555,281 km (0.072 R)
• M6: 2,693,210 km (0.11 R)
• M7: 3,114,927 km (0.031 R)
• M8: 3,628,048 km (0.068 R)
• M9: 3,878,923 km (0.118 R)
• M10: 4,168,245 km (0.109 R)
• M11: 4,614,346 km (0.038 R)
• M12: 4,878,835 km (0.029 R)
• M13: 5,733,039 km (0.051 R)
• M14: 6,462,778 km (0.109 R)
• M15: 6,719,188 km (0.066 R)
• M16: 12,515,507 km (0.084 R)
• M17: 16,273,556 km (0.071 R)
• M18: 19,332,533 km (0.093 R)
• M19: 33,617,484 km (0.116 R)
• M20: 35,956,746 km (0.098 R)
• M21: 38,640,831 km (0.079 R)
• M22: 42,084,723 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 794.3

Radius: 4.9

Gravity: 33.08 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 8.23 AU - 9.01 AU

Year: 16091 Days

Day: 17.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 69,150,327 km

• M1: 61,634 km (0.104 R)
• M2: 573,259 km (0.108 R)
• M3: 1,016,069 km (0.032 R)
• M4: 1,179,729 km (0.108 R)
• M5: 1,926,372 km (0.091 R)
• M6: 2,119,203 km (0.044 R)
• M7: 2,324,901 km (0.112 R)
• M8: 3,125,848 km (0.093 R)
• M9: 3,338,426 km (0.089 R)
• M10: 3,942,502 km (0.11 R)
• M11: 4,616,590 km (0.107 R)
• M12: 5,070,769 km (0.102 R)
• M13: 5,787,194 km (0.085 R)
• M14: 7,894,280 km (0.099 R)
• M15: 8,491,474 km (0.045 R)
• M16: 11,061,416 km (0.119 R)
• M17: 12,588,362 km (0.116 R)
• M18: 13,195,430 km (0.081 R)
• M19: 13,402,174 km (0.093 R)
• M20: 15,897,616 km (0.105 R)
• M21: 16,053,497 km (0.083 R)
• M22: 17,254,469 km (0.096 R)
• M23: 20,562,527 km (0.06 R)
• M24: 24,064,613 km (0.07 R)
• M25: 26,607,926 km (0.037 R)
• M26: 29,441,759 km (0.114 R)
• M27: 31,479,730 km (0.116 R)
• M28: 31,725,520 km (0.053 R)
• M29: 32,096,672 km (0.098 R)
• M30: 37,324,519 km (0.036 R)
• M31: 38,574,260 km (0.089 R)
• M32: 41,450,877 km (0.081 R)
• M33: 41,894,285 km (0.071 R)
• M34: 42,640,330 km (0.093 R)
• M35: 45,556,441 km (0.117 R)
• M36: 51,953,246 km (0.075 R)
• M37: 56,534,681 km (0.109 R)
• M38: 67,098,235 km (0.098 R)
• M39: 67,505,441 km (0.108 R)
• M40: 67,914,142 km (0.108 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 371 - 16,443 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit