🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.66 AU - 0.8 AU

Year: 231 Days

Day: 21 Hours

Environment

Temp: 149 °C

Axial Tilt: 12.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,486,743 km

• M1: 22,589 km (0.115 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.91 AU - 1.13 AU

Year: 382 Days

Day: 34.7 Hours

Environment

Temp: 35 °C

Axial Tilt: 24.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.28 AU - 1.8 AU

Year: 709 Days

Day: 16 Hours

Environment

Temp: -47 °C

Axial Tilt: 6.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.88

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.76 AU - 1.84 AU

Year: 896 Days

Day: 24.9 Hours

Environment

Temp: -58 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,486,743 km

• M1: 56,548 km (0.105 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.84

Radius: 0.93

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 3.14 AU - 4.78 AU

Year: 2922 Days

Day: 21.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.8

Radius: 8.1

Gravity: 10.91 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.59 AU - 6.31 AU

Year: 4718 Days

Day: 7.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 71,486,743 km

• M1: 102,624 km (0.12 R)
• M2: 396,883 km (0.059 R)
• M3: 738,864 km (0.119 R)
• M4: 1,275,920 km (0.111 R)
• M5: 1,564,943 km (0.076 R)
• M6: 2,340,159 km (0.119 R)
• M7: 2,603,452 km (0.109 R)
• M8: 3,664,101 km (0.084 R)
• M9: 4,020,892 km (0.056 R)
• M10: 4,279,546 km (0.052 R)
• M11: 4,830,515 km (0.05 R)
• M12: 6,968,119 km (0.058 R)
• M13: 7,911,184 km (0.091 R)
• M14: 9,502,606 km (0.117 R)
• M15: 9,878,695 km (0.103 R)
• M16: 11,066,652 km (0.083 R)
• M17: 11,576,930 km (0.098 R)
• M18: 12,200,155 km (0.095 R)
• M19: 13,305,534 km (0.062 R)
• M20: 15,484,128 km (0.113 R)
• M21: 16,718,160 km (0.08 R)
• M22: 22,386,723 km (0.108 R)
• M23: 23,278,027 km (0.098 R)
• M24: 25,689,994 km (0.054 R)
• M25: 28,349,395 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.9

Radius: 14.2

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 6.34 AU - 9.22 AU

Year: 8048 Days

Day: 5.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,486,743 km

• M1: 176,675 km (0.079 R)
• M2: 1,461,122 km (0.069 R)
• M3: 2,525,661 km (0.118 R)
• M4: 3,268,564 km (0.093 R)
• M5: 5,744,857 km (0.043 R)
• M6: 7,069,696 km (0.055 R)
• M7: 7,785,971 km (0.077 R)
• M8: 9,833,218 km (0.081 R)
• M9: 10,680,839 km (0.119 R)
• M10: 11,288,506 km (0.054 R)
• M11: 11,820,625 km (0.117 R)
• M12: 13,789,184 km (0.085 R)
• M13: 17,521,052 km (0.077 R)
• M14: 20,638,971 km (0.067 R)
• M15: 21,879,437 km (0.067 R)
• M16: 22,328,978 km (0.077 R)
• M17: 29,379,376 km (0.079 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.1

Radius: 11.6

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 8.8 AU - 11.46 AU

Year: 11957 Days

Day: 12.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,486,743 km

• M1: 151,692 km (0.117 R)
• M2: 713,731 km (0.117 R)
• M3: 1,093,112 km (0.043 R)
• M4: 1,611,917 km (0.118 R)
• M5: 2,005,958 km (0.11 R)
• M6: 4,638,282 km (0.082 R)
• M7: 5,312,968 km (0.085 R)
• M8: 5,942,327 km (0.099 R)
• M9: 7,562,322 km (0.047 R)
• M10: 10,544,705 km (0.038 R)
• M11: 10,924,385 km (0.068 R)
• M12: 12,178,164 km (0.066 R)
• M13: 13,462,013 km (0.081 R)
• M14: 15,729,169 km (0.033 R)
• M15: 21,092,253 km (0.073 R)
• M16: 31,190,707 km (0.112 R)
• M17: 38,604,179 km (0.045 R)
• M18: 40,163,139 km (0.092 R)
• M19: 48,892,324 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 517.8

Radius: 7.3

Gravity: 9.72 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 10.69 AU - 13.57 AU

Year: 15667 Days

Day: 22.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 71,486,743 km

• M1: 90,956 km (0.09 R)
• M2: 428,149 km (0.1 R)
• M3: 966,253 km (0.078 R)
• M4: 1,554,920 km (0.086 R)
• M5: 2,547,951 km (0.117 R)
• M6: 3,292,350 km (0.088 R)
• M7: 3,911,386 km (0.057 R)
• M8: 4,324,575 km (0.109 R)
• M9: 4,734,025 km (0.093 R)
• M10: 4,965,004 km (0.046 R)
• M11: 5,343,337 km (0.04 R)
• M12: 6,003,811 km (0.082 R)
• M13: 6,235,688 km (0.1 R)
• M14: 8,076,939 km (0.053 R)
• M15: 9,096,448 km (0.054 R)
• M16: 9,928,811 km (0.087 R)
• M17: 10,253,588 km (0.089 R)
• M18: 10,697,893 km (0.069 R)
• M19: 11,925,194 km (0.119 R)
• M20: 13,770,484 km (0.072 R)
• M21: 20,349,200 km (0.093 R)
• M22: 30,314,513 km (0.058 R)
• M23: 32,993,511 km (0.118 R)
• M24: 37,497,305 km (0.039 R)
• M25: 39,895,508 km (0.056 R)
• M26: 40,717,100 km (0.096 R)
• M27: 43,106,327 km (0.09 R)
• M28: 43,393,406 km (0.083 R)
• M29: 44,554,584 km (0.059 R)
• M30: 46,485,294 km (0.12 R)
• M31: 50,672,389 km (0.106 R)
• M32: 53,765,026 km (0.092 R)
• M33: 55,781,904 km (0.062 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 515.9

Radius: 4.5

Gravity: 25.48 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 14.14 AU - 15.34 AU

Year: 20987 Days

Day: 15.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,486,743 km

• M1: 61,634 km (0.099 R)
• M2: 287,527 km (0.073 R)
• M3: 515,664 km (0.108 R)
• M4: 708,047 km (0.03 R)
• M5: 1,132,306 km (0.087 R)
• M6: 2,082,702 km (0.106 R)
• M7: 4,164,057 km (0.061 R)
• M8: 5,500,714 km (0.118 R)
• M9: 6,435,850 km (0.114 R)
• M10: 10,216,039 km (0.079 R)
• M11: 10,392,265 km (0.076 R)
• M12: 15,485,025 km (0.117 R)
• M13: 19,045,604 km (0.077 R)
• M14: 22,417,091 km (0.072 R)
• M15: 29,592,104 km (0.106 R)
• M16: 31,165,425 km (0.062 R)
• M17: 37,876,834 km (0.104 R)
• M18: 43,614,511 km (0.09 R)
• M19: 44,078,414 km (0.045 R)
• M20: 50,923,414 km (0.065 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 17,962 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit