🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.52

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.7 AU - 0.76 AU

Year: 239 Days

Day: 31.6 Hours

Environment

Temp: 87 °C

Axial Tilt: 38.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.96 AU - 1.08 AU

Year: 394 Days

Day: 21.7 Hours

Environment

Temp: 20 °C

Axial Tilt: 179.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.85 AU - 1.29 AU

Year: 424 Days

Day: 37.5 Hours

Environment

Temp: -9 °C

Axial Tilt: 35.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.15 AU - 1.45 AU

Year: 568 Days

Day: 39.2 Hours

Environment

Temp: -37 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.73 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.9

Radius: 12.7

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.89 AU - 4.41 AU

Year: 3237 Days

Day: 13.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,987,770 km

• M1: 157,975 km (0.113 R)
• M2: 1,037,312 km (0.119 R)
• M3: 1,519,765 km (0.069 R)
• M4: 2,981,336 km (0.037 R)
• M5: 3,730,672 km (0.072 R)
• M6: 4,737,316 km (0.037 R)
• M7: 8,877,437 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.8

Radius: 11.8

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.9 AU - 4.68 AU

Year: 3402 Days

Day: 12.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,987,770 km

• M1: 148,251 km (0.075 R)
• M2: 573,109 km (0.106 R)
• M3: 1,009,187 km (0.088 R)
• M4: 1,976,337 km (0.107 R)
• M5: 2,475,246 km (0.114 R)
• M6: 5,051,172 km (0.072 R)
• M7: 9,085,228 km (0.03 R)
• M8: 9,970,997 km (0.091 R)
• M9: 11,406,538 km (0.095 R)
• M10: 12,349,155 km (0.102 R)
• M11: 12,749,479 km (0.12 R)
• M12: 16,591,301 km (0.07 R)
• M13: 17,024,537 km (0.042 R)
• M14: 19,966,229 km (0.055 R)
• M15: 20,456,611 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647

Radius: 14.5

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.43 AU - 8.45 AU

Year: 7000 Days

Day: 13.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,987,770 km

• M1: 181,163 km (0.03 R)
• M2: 653,144 km (0.095 R)
• M3: 1,156,691 km (0.115 R)
• M4: 1,873,265 km (0.089 R)
• M5: 2,454,303 km (0.057 R)
• M6: 2,953,212 km (0.117 R)
• M7: 3,587,656 km (0.088 R)
• M8: 4,134,736 km (0.027 R)
• M9: 4,709,939 km (0.103 R)
• M10: 5,458,677 km (0.107 R)
• M11: 6,087,736 km (0.117 R)
• M12: 6,941,790 km (0.102 R)
• M13: 8,310,611 km (0.118 R)
• M14: 9,583,240 km (0.066 R)
• M15: 10,644,188 km (0.12 R)
• M16: 11,178,551 km (0.052 R)
• M17: 12,781,941 km (0.113 R)
• M18: 15,560,273 km (0.116 R)
• M19: 16,441,255 km (0.112 R)
• M20: 17,892,803 km (0.083 R)
• M21: 20,228,026 km (0.117 R)
• M22: 21,507,237 km (0.102 R)
• M23: 25,324,676 km (0.068 R)
• M24: 28,631,536 km (0.108 R)
• M25: 29,858,837 km (0.099 R)

Asteroid Belt

Center: 10.66 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 14.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137.7

Radius: 3.7

Gravity: 10.06 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 11.66 AU - 17.1 AU

Year: 20879 Days

Day: 18.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,987,770 km

• M1: 46,375 km (0.067 R)
• M2: 340,934 km (0.112 R)
• M3: 507,735 km (0.066 R)
• M4: 948,002 km (0.114 R)
• M5: 2,520,874 km (0.082 R)
• M6: 3,638,669 km (0.047 R)
• M7: 5,113,704 km (0.114 R)
• M8: 8,223,245 km (0.118 R)
• M9: 10,243,714 km (0.103 R)
• M10: 11,126,192 km (0.046 R)
• M11: 12,284,828 km (0.099 R)
• M12: 13,219,964 km (0.055 R)
• M13: 17,364,124 km (0.074 R)
• M14: 17,725,852 km (0.099 R)
• M15: 22,467,356 km (0.053 R)
• M16: 23,507,361 km (0.096 R)
• M17: 31,060,707 km (0.044 R)
• M18: 32,568,055 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 31.5

Radius: 6.9

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 17.69 AU - 20.23 AU

Year: 31610 Days

Day: 19 Hours

Environment

Temp: -209 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,987,770 km

• M1: 85,869 km (0.109 R)
• M2: 327,171 km (0.068 R)
• M3: 697,724 km (0.075 R)
• M4: 958,174 km (0.119 R)
• M5: 1,250,189 km (0.076 R)
• M6: 2,859,115 km (0.12 R)
• M7: 3,493,559 km (0.105 R)
• M8: 6,360,303 km (0.116 R)
• M9: 8,379,725 km (0.1 R)
• M10: 9,714,138 km (0.118 R)
• M11: 9,987,902 km (0.08 R)
• M12: 13,237,766 km (0.117 R)
• M13: 13,517,963 km (0.079 R)
• M14: 15,467,821 km (0.079 R)
• M15: 21,879,736 km (0.052 R)
• M16: 25,925,610 km (0.079 R)
• M17: 26,719,227 km (0.084 R)
• M18: 36,327,449 km (0.078 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: 219 - 18,939 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit