🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.72 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.11

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.19 AU - 1.69 AU

Year: 613 Days

Day: 40 Hours

Environment

Temp: -19 °C

Axial Tilt: 14.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 110,536,883 km

• M1: 274,063 km (0.106 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.54 AU - 1.84 AU

Year: 779 Days

Day: 35.1 Hours

Environment

Temp: -34 °C

Axial Tilt: 32.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.11 AU - 4.89 AU

Year: 2838 Days

Day: 29.6 Hours

Environment

Temp: -117 °C

Axial Tilt: 37.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 4.3 AU - 4.8 AU

Year: 3443 Days

Day: 47 Hours

Environment

Temp: -134 °C

Axial Tilt: 45.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 110,536,883 km

• M1: 195,524 km (0.114 R)

Planet 5 - Terrestrial

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 5.12 AU - 5.32 AU

Year: 4231 Days

Day: 16.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 7.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.5

Radius: 9.1

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 4.98 AU - 7.98 AU

Year: 5852 Days

Day: 7.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 110,536,883 km

• M1: 113,096 km (0.061 R)
• M2: 474,225 km (0.096 R)
• M3: 1,270,684 km (0.111 R)
• M4: 1,968,708 km (0.103 R)
• M5: 3,790,062 km (0.098 R)
• M6: 4,520,249 km (0.12 R)
• M7: 4,820,642 km (0.113 R)
• M8: 5,341,093 km (0.099 R)
• M9: 5,739,921 km (0.101 R)
• M10: 8,239,552 km (0.113 R)
• M11: 12,311,157 km (0.111 R)
• M12: 13,063,185 km (0.114 R)
• M13: 13,675,340 km (0.111 R)
• M14: 14,248,300 km (0.108 R)
• M15: 14,837,117 km (0.044 R)
• M16: 16,063,520 km (0.103 R)
• M17: 17,026,781 km (0.115 R)
• M18: 17,422,617 km (0.112 R)
• M19: 18,096,106 km (0.109 R)
• M20: 20,001,235 km (0.104 R)
• M21: 20,664,851 km (0.116 R)
• M22: 23,224,621 km (0.057 R)
• M23: 26,162,723 km (0.098 R)
• M24: 26,867,478 km (0.119 R)
• M25: 27,494,593 km (0.108 R)
• M26: 30,679,831 km (0.096 R)
• M27: 32,361,011 km (0.092 R)
• M28: 33,584,273 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.8

Radius: 12.6

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 7.42 AU - 8.78 AU

Year: 8178 Days

Day: 5.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 110,536,883 km

• M1: 156,629 km (0.109 R)
• M2: 670,198 km (0.114 R)
• M3: 1,113,158 km (0.06 R)
• M4: 1,771,837 km (0.057 R)
• M5: 2,277,029 km (0.067 R)
• M6: 3,926,047 km (0.107 R)
• M7: 4,941,517 km (0.117 R)
• M8: 5,400,334 km (0.054 R)
• M9: 6,619,107 km (0.076 R)
• M10: 7,489,019 km (0.085 R)
• M11: 8,179,712 km (0.088 R)
• M12: 9,548,533 km (0.112 R)
• M13: 12,736,314 km (0.108 R)
• M14: 13,840,496 km (0.059 R)
• M15: 14,632,018 km (0.047 R)
• M16: 18,032,079 km (0.099 R)
• M17: 19,423,488 km (0.064 R)
• M18: 21,122,471 km (0.119 R)
• M19: 23,171,214 km (0.072 R)
• M20: 29,908,055 km (0.111 R)
• M21: 32,592,290 km (0.059 R)
• M22: 41,229,772 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 718.1

Radius: 5.4

Gravity: 24.63 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 16.33 AU - 21.35 AU

Year: 29011 Days

Day: 20.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 110,536,883 km

• M1: 67,169 km (0.055 R)
• M2: 375,191 km (0.117 R)
• M3: 767,736 km (0.078 R)
• M4: 2,931,071 km (0.057 R)
• M5: 3,496,401 km (0.107 R)
• M6: 3,755,056 km (0.079 R)
• M7: 4,384,115 km (0.069 R)
• M8: 5,715,536 km (0.119 R)
• M9: 6,075,020 km (0.075 R)
• M10: 8,214,419 km (0.082 R)
• M11: 9,329,222 km (0.076 R)
• M12: 11,289,403 km (0.1 R)
• M13: 11,927,139 km (0.099 R)
• M14: 20,292,203 km (0.109 R)
• M15: 21,985,501 km (0.066 R)
• M16: 23,429,121 km (0.066 R)
• M17: 25,892,399 km (0.1 R)
• M18: 27,249,252 km (0.118 R)
• M19: 27,754,145 km (0.086 R)
• M20: 31,326,841 km (0.119 R)
• M21: 33,294,652 km (0.094 R)
• M22: 55,242,155 km (0.116 R)
• M23: 55,847,727 km (0.032 R)
• M24: 56,050,582 km (0.085 R)
• M25: 56,661,989 km (0.099 R)
• M26: 69,374,816 km (0.111 R)
• M27: 78,150,526 km (0.092 R)
• M28: 79,424,950 km (0.112 R)
• M29: 82,540,176 km (0.073 R)
• M30: 86,276,234 km (0.066 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 965.5

Radius: 7.9

Gravity: 15.47 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 14.4 AU - 23.7 AU

Year: 29497 Days

Day: 22.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 110,536,883 km

• M1: 100,380 km (0.105 R)
• M2: 376,089 km (0.114 R)
• M3: 690,095 km (0.107 R)
• M4: 942,616 km (0.119 R)
• M5: 1,226,703 km (0.088 R)
• M6: 2,039,318 km (0.098 R)
• M7: 2,522,669 km (0.03 R)
• M8: 3,924,551 km (0.073 R)
• M9: 4,833,358 km (0.105 R)
• M10: 5,737,826 km (0.104 R)
• M11: 6,158,196 km (0.094 R)
• M12: 8,339,034 km (0.119 R)
• M13: 8,817,747 km (0.043 R)
• M14: 10,162,034 km (0.09 R)
• M15: 15,537,384 km (0.038 R)
• M16: 25,042,684 km (0.098 R)
• M17: 26,802,852 km (0.112 R)
• M18: 39,960,434 km (0.107 R)
• M19: 41,491,269 km (0.06 R)
• M20: 43,414,798 km (0.117 R)
• M21: 48,386,982 km (0.092 R)
• M22: 50,517,107 km (0.094 R)
• M23: 51,108,766 km (0.094 R)
• M24: 54,963,454 km (0.116 R)
• M25: 55,798,959 km (0.104 R)
• M26: 57,281,324 km (0.095 R)
• M27: 58,789,869 km (0.068 R)
• M28: 65,555,732 km (0.06 R)
• M29: 72,072,664 km (0.101 R)
• M30: 74,337,426 km (0.071 R)
• M31: 75,615,889 km (0.113 R)
• M32: 79,539,243 km (0.076 R)
• M33: 90,081,555 km (0.103 R)
• M34: 97,807,237 km (0.1 R)
• M35: 100,581,231 km (0.075 R)
• M36: 104,042,178 km (0.077 R)
• M37: 104,360,671 km (0.078 R)
• M38: 104,999,753 km (0.118 R)
• M39: 106,932,408 km (0.088 R)
• M40: 107,907,487 km (0.106 R)
• M41: 108,560,931 km (0.099 R)
• M42: 109,216,917 km (0.051 R)

Kuiper Belt

Range: 30.9 - 57.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 435 - 16,008 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit