🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.46 AU - 0.56 AU

Year: 235 Days

Day: 30.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.61 AU - 0.61 AU

Year: 308 Days

Day: 21.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.1

Radius: 12

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.85 AU - 1.33 AU

Year: 735 Days

Day: 6.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,166,635 km

• M1: 149,299 km (0.071 R)
• M2: 586,124 km (0.035 R)
• M3: 1,099,844 km (0.102 R)
• M4: 1,496,428 km (0.099 R)
• M5: 2,081,355 km (0.097 R)
• M6: 2,613,774 km (0.086 R)
• M7: 3,038,482 km (0.071 R)
• M8: 3,644,653 km (0.079 R)
• M9: 4,345,669 km (0.057 R)
• M10: 5,222,312 km (0.068 R)
• M11: 6,556,276 km (0.066 R)
• M12: 6,997,740 km (0.047 R)
• M13: 7,940,505 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873

Radius: 12.4

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.23 AU - 1.59 AU

Year: 1081 Days

Day: 10.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,166,635 km

• M1: 154,235 km (0.048 R)
• M2: 607,667 km (0.115 R)
• M3: 1,339,649 km (0.086 R)
• M4: 2,007,454 km (0.065 R)
• M5: 3,036,986 km (0.085 R)
• M6: 3,608,001 km (0.079 R)
• M7: 4,180,812 km (0.054 R)
• M8: 5,243,405 km (0.095 R)
• M9: 5,720,174 km (0.041 R)
• M10: 6,595,172 km (0.028 R)
• M11: 8,140,219 km (0.103 R)
• M12: 8,752,822 km (0.099 R)
• M13: 9,306,484 km (0.099 R)
• M14: 10,228,156 km (0.053 R)
• M15: 11,481,936 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.7

Radius: 12.4

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.73 AU - 3.93 AU

Year: 3924 Days

Day: 10.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 52,166,635 km

• M1: 154,235 km (0.081 R)
• M2: 601,832 km (0.064 R)
• M3: 1,026,541 km (0.054 R)
• M4: 1,439,880 km (0.082 R)
• M5: 1,851,573 km (0.079 R)
• M6: 2,685,581 km (0.085 R)
• M7: 3,189,277 km (0.042 R)
• M8: 3,673,825 km (0.107 R)
• M9: 4,458,166 km (0.104 R)
• M10: 6,067,839 km (0.119 R)
• M11: 6,816,128 km (0.098 R)
• M12: 7,229,018 km (0.092 R)
• M13: 8,353,246 km (0.097 R)
• M14: 8,863,973 km (0.08 R)
• M15: 10,191,804 km (0.103 R)
• M16: 11,337,424 km (0.094 R)
• M17: 13,044,486 km (0.113 R)
• M18: 13,484,453 km (0.12 R)
• M19: 14,445,918 km (0.103 R)
• M20: 15,076,324 km (0.082 R)
• M21: 15,835,084 km (0.111 R)
• M22: 16,962,753 km (0.113 R)
• M23: 18,143,230 km (0.077 R)
• M24: 19,504,271 km (0.114 R)
• M25: 22,151,406 km (0.069 R)
• M26: 22,919,591 km (0.1 R)
• M27: 24,214,659 km (0.089 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 120.5

Radius: 7.9

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 5.96 AU - 6.12 AU

Year: 9585 Days

Day: 19.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,166,635 km

• M1: 101,427 km (0.065 R)
• M2: 466,895 km (0.106 R)
• M3: 800,498 km (0.109 R)
• M4: 1,480,869 km (0.072 R)
• M5: 2,268,951 km (0.076 R)
• M6: 3,369,094 km (0.116 R)
• M7: 4,641,573 km (0.12 R)
• M8: 4,991,632 km (0.099 R)
• M9: 5,801,106 km (0.093 R)
• M10: 6,237,334 km (0.055 R)
• M11: 12,825,025 km (0.109 R)
• M12: 14,703,376 km (0.101 R)
• M13: 19,122,946 km (0.035 R)
• M14: 24,955,318 km (0.104 R)
• M15: 26,030,329 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 804.2

Radius: 6.9

Gravity: 16.89 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 6.06 AU - 6.76 AU

Year: 10479 Days

Day: 18.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 52,166,635 km

• M1: 88,712 km (0.093 R)
• M2: 319,691 km (0.058 R)
• M3: 1,266,196 km (0.095 R)
• M4: 1,682,826 km (0.109 R)
• M5: 2,061,459 km (0.093 R)
• M6: 2,337,916 km (0.09 R)
• M7: 2,854,327 km (0.08 R)
• M8: 3,199,001 km (0.107 R)
• M9: 3,418,910 km (0.07 R)
• M10: 3,781,385 km (0.116 R)
• M11: 4,255,611 km (0.076 R)
• M12: 4,863,427 km (0.036 R)
• M13: 5,221,564 km (0.082 R)
• M14: 6,213,099 km (0.09 R)
• M15: 6,556,875 km (0.067 R)
• M16: 9,629,615 km (0.088 R)
• M17: 11,056,330 km (0.11 R)
• M18: 12,800,791 km (0.086 R)
• M19: 15,609,939 km (0.109 R)
• M20: 15,961,195 km (0.077 R)
• M21: 20,765,232 km (0.097 R)
• M22: 21,019,548 km (0.117 R)
• M23: 22,499,819 km (0.089 R)
• M24: 25,375,688 km (0.082 R)
• M25: 25,861,283 km (0.102 R)
• M26: 28,383,354 km (0.094 R)
• M27: 30,406,366 km (0.058 R)
• M28: 32,637,767 km (0.073 R)
• M29: 38,945,562 km (0.054 R)
• M30: 39,332,422 km (0.079 R)
• M31: 39,982,873 km (0.077 R)
• M32: 46,742,004 km (0.106 R)
• M33: 47,032,972 km (0.112 R)
• M34: 52,010,542 km (0.086 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: 489 - 12,279 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit