🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.74 AU - 0.76 AU

Year: 238 Days

Day: 27.4 Hours

Environment

Temp: 136 °C

Axial Tilt: 13.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.03 AU - 1.55 AU

Year: 538 Days

Day: 36.8 Hours

Environment

Temp: -10 °C

Axial Tilt: 42 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.18 AU - 2.5 AU

Year: 1314 Days

Day: 29.8 Hours

Environment

Temp: -81 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 68,644,847 km

• M1: 38,447 km (0.085 R)
• M2: 908,358 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893

Radius: 8.8

Gravity: 11.53 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 4.13 AU - 6.43 AU

Year: 4454 Days

Day: 9.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,644,847 km

• M1: 109,506 km (0.117 R)
• M2: 387,159 km (0.088 R)
• M3: 669,301 km (0.079 R)
• M4: 1,015,919 km (0.119 R)
• M5: 1,688,511 km (0.059 R)
• M6: 2,100,952 km (0.092 R)
• M7: 2,683,786 km (0.08 R)
• M8: 3,495,653 km (0.08 R)
• M9: 4,122,020 km (0.116 R)
• M10: 5,171,898 km (0.116 R)
• M11: 5,453,142 km (0.107 R)
• M12: 6,486,713 km (0.093 R)
• M13: 7,974,314 km (0.114 R)
• M14: 10,862,601 km (0.098 R)
• M15: 11,561,671 km (0.079 R)
• M16: 11,849,498 km (0.061 R)
• M17: 13,678,781 km (0.108 R)
• M18: 15,630,285 km (0.079 R)
• M19: 15,982,588 km (0.092 R)
• M20: 18,208,903 km (0.042 R)
• M21: 19,127,883 km (0.102 R)
• M22: 20,424,148 km (0.091 R)
• M23: 23,726,372 km (0.111 R)
• M24: 25,544,285 km (0.117 R)
• M25: 29,455,372 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.9

Radius: 15

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.15 AU - 6.85 AU

Year: 4735 Days

Day: 14.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,644,847 km

• M1: 200,611 km (0.042 R)
• M2: 684,560 km (0.086 R)
• M3: 1,432,100 km (0.057 R)
• M4: 2,018,674 km (0.086 R)
• M5: 2,731,358 km (0.118 R)
• M6: 3,252,108 km (0.114 R)
• M7: 5,780,462 km (0.074 R)
• M8: 6,616,714 km (0.074 R)
• M9: 8,164,753 km (0.098 R)
• M10: 9,456,231 km (0.08 R)
• M11: 10,575,672 km (0.096 R)
• M12: 11,781,880 km (0.1 R)
• M13: 12,684,403 km (0.057 R)
• M14: 14,098,103 km (0.084 R)
• M15: 27,316,571 km (0.038 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 365.2

Radius: 7.5

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 11.03 AU - 13.89 AU

Year: 16145 Days

Day: 19.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 92.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,644,847 km

• M1: 102,175 km (0.084 R)
• M2: 341,981 km (0.089 R)
• M3: 693,386 km (0.09 R)
• M4: 1,368,821 km (0.111 R)
• M5: 1,638,246 km (0.104 R)
• M6: 2,422,139 km (0.06 R)
• M7: 3,023,373 km (0.059 R)
• M8: 3,309,703 km (0.051 R)
• M9: 3,882,214 km (0.092 R)
• M10: 4,894,543 km (0.063 R)
• M11: 7,134,921 km (0.086 R)
• M12: 8,178,665 km (0.103 R)
• M13: 9,470,742 km (0.114 R)
• M14: 9,878,396 km (0.098 R)
• M15: 12,094,689 km (0.103 R)
• M16: 12,696,670 km (0.058 R)
• M17: 18,096,406 km (0.109 R)
• M18: 19,204,926 km (0.106 R)
• M19: 19,775,791 km (0.103 R)
• M20: 22,530,487 km (0.037 R)
• M21: 30,957,634 km (0.1 R)
• M22: 32,540,080 km (0.094 R)
• M23: 34,413,793 km (0.115 R)
• M24: 35,498,827 km (0.095 R)
• M25: 38,118,884 km (0.074 R)
• M26: 41,537,943 km (0.06 R)
• M27: 45,875,085 km (0.053 R)
• M28: 47,041,499 km (0.055 R)
• M29: 49,433,270 km (0.102 R)
• M30: 51,279,457 km (0.063 R)
• M31: 52,377,356 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 762.6

Radius: 4.8

Gravity: 33.1 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 10.07 AU - 14.95 AU

Year: 16243 Days

Day: 22.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,644,847 km

• M1: 61,186 km (0.109 R)
• M2: 310,116 km (0.107 R)
• M3: 501,003 km (0.105 R)
• M4: 1,210,396 km (0.058 R)
• M5: 1,856,510 km (0.115 R)
• M6: 2,063,553 km (0.088 R)
• M7: 2,328,192 km (0.103 R)
• M8: 4,159,419 km (0.064 R)
• M9: 4,786,683 km (0.106 R)
• M10: 5,512,682 km (0.117 R)
• M11: 13,510,782 km (0.083 R)
• M12: 15,780,780 km (0.087 R)
• M13: 16,723,845 km (0.034 R)
• M14: 19,069,241 km (0.081 R)
• M15: 29,693,981 km (0.104 R)
• M16: 43,988,805 km (0.086 R)
• M17: 44,757,589 km (0.068 R)
• M18: 45,223,287 km (0.029 R)
• M19: 45,849,055 km (0.111 R)
• M20: 49,229,518 km (0.043 R)
• M21: 50,392,342 km (0.068 R)
• M22: 57,025,362 km (0.065 R)
• M23: 61,119,556 km (0.079 R)
• M24: 63,628,462 km (0.11 R)
• M25: 66,809,661 km (0.077 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 481 - 13,112 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit