🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.2

Radius: 8.9

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.41 AU - 0.65 AU

Year: 266 Days

Day: 5.2 Hours

Environment

Temp: -133 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,156,730 km

• M1: 111,899 km (0.095 R)
• M2: 414,984 km (0.091 R)
• M3: 814,560 km (0.114 R)
• M4: 1,557,463 km (0.111 R)
• M5: 1,876,855 km (0.029 R)
• M6: 2,213,151 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.7

Radius: 10.2

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.57 AU - 0.71 AU

Year: 353 Days

Day: 12.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,156,730 km

• M1: 127,158 km (0.093 R)
• M2: 540,647 km (0.106 R)
• M3: 866,620 km (0.103 R)
• M4: 1,291,478 km (0.119 R)
• M5: 1,791,135 km (0.096 R)
• M6: 2,153,461 km (0.112 R)
• M7: 2,636,962 km (0.084 R)
• M8: 2,978,793 km (0.09 R)
• M9: 4,404,461 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.1

Radius: 11.7

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.59 AU - 0.91 AU

Year: 448 Days

Day: 8.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 52.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,156,730 km

• M1: 145,559 km (0.037 R)
• M2: 588,967 km (0.101 R)
• M3: 1,099,096 km (0.09 R)
• M4: 1,838,109 km (0.069 R)
• M5: 2,681,991 km (0.112 R)
• M6: 3,818,486 km (0.114 R)
• M7: 4,266,082 km (0.105 R)
• M8: 5,173,394 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.2

Radius: 9.8

Gravity: 9.3 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.41 AU - 3.71 AU

Year: 3695 Days

Day: 8.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 25,156,730 km

• M1: 121,922 km (0.088 R)
• M2: 674,088 km (0.068 R)
• M3: 1,140,085 km (0.103 R)
• M4: 1,904,979 km (0.036 R)
• M5: 2,316,074 km (0.073 R)
• M6: 2,700,690 km (0.037 R)
• M7: 4,050,512 km (0.07 R)
• M8: 4,810,619 km (0.111 R)
• M9: 5,775,974 km (0.114 R)
• M10: 6,612,375 km (0.058 R)
• M11: 6,962,285 km (0.084 R)
• M12: 7,699,354 km (0.106 R)
• M13: 8,377,032 km (0.104 R)
• M14: 9,487,347 km (0.118 R)
• M15: 12,471,825 km (0.082 R)
• M16: 13,255,718 km (0.062 R)
• M17: 13,608,918 km (0.086 R)
• M18: 15,084,701 km (0.079 R)
• M19: 16,202,347 km (0.094 R)
• M20: 17,135,389 km (0.108 R)
• M21: 17,797,359 km (0.072 R)
• M22: 18,853,969 km (0.054 R)
• M23: 20,887,304 km (0.116 R)
• M24: 25,000,647 km (0.073 R)
• M25: 26,245,600 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.6

Radius: 10.5

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.92 AU - 4.14 AU

Year: 4578 Days

Day: 7.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 25,156,730 km

• M1: 130,599 km (0.034 R)
• M2: 560,992 km (0.112 R)
• M3: 928,255 km (0.089 R)
• M4: 1,305,541 km (0.108 R)
• M5: 1,761,365 km (0.112 R)
• M6: 2,523,716 km (0.086 R)
• M7: 3,472,765 km (0.105 R)
• M8: 3,801,880 km (0.061 R)
• M9: 4,644,415 km (0.076 R)
• M10: 5,388,216 km (0.059 R)
• M11: 6,150,268 km (0.11 R)
• M12: 6,480,729 km (0.042 R)
• M13: 7,784,176 km (0.054 R)
• M14: 8,461,106 km (0.073 R)
• M15: 9,176,932 km (0.117 R)
• M16: 9,810,628 km (0.085 R)
• M17: 10,304,900 km (0.114 R)
• M18: 11,934,021 km (0.064 R)
• M19: 13,029,526 km (0.112 R)
• M20: 18,644,233 km (0.071 R)
• M21: 20,117,024 km (0.048 R)
• M22: 22,504,756 km (0.07 R)
• M23: 23,148,176 km (0.057 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 309.8

Radius: 5.3

Gravity: 11.03 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 5.53 AU - 6.41 AU

Year: 10069 Days

Day: 20.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 69.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 25,156,730 km

• M1: 71,657 km (0.115 R)
• M2: 292,015 km (0.069 R)
• M3: 486,193 km (0.106 R)
• M4: 677,678 km (0.051 R)
• M5: 1,379,741 km (0.106 R)
• M6: 1,758,822 km (0.032 R)
• M7: 2,357,064 km (0.115 R)
• M8: 2,918,206 km (0.079 R)
• M9: 3,339,174 km (0.088 R)
• M10: 7,264,622 km (0.081 R)
• M11: 8,276,801 km (0.11 R)
• M12: 8,481,750 km (0.041 R)
• M13: 10,292,034 km (0.06 R)
• M14: 10,867,238 km (0.114 R)
• M15: 11,212,360 km (0.034 R)
• M16: 11,821,224 km (0.107 R)
• M17: 12,559,040 km (0.077 R)
• M18: 12,775,359 km (0.076 R)
• M19: 18,256,775 km (0.101 R)
• M20: 19,027,204 km (0.083 R)
• M21: 21,545,684 km (0.06 R)
• M22: 22,964,919 km (0.106 R)
• M23: 23,207,417 km (0.057 R)
• M24: 23,779,778 km (0.086 R)
• M25: 25,380,775 km (0.115 R)
• M26: 25,553,411 km (0.09 R)
• M27: 27,686,228 km (0.074 R)
• M28: 28,329,947 km (0.072 R)
• M29: 28,889,593 km (0.12 R)
• M30: 29,838,642 km (0.037 R)
• M31: 33,118,126 km (0.061 R)
• M32: 33,324,272 km (0.12 R)
• M33: 33,739,257 km (0.075 R)
• M34: 34,157,532 km (0.054 R)
• M35: 34,473,483 km (0.108 R)
• M36: 36,740,190 km (0.055 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.4

Radius: 7.5

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 7.74 AU - 8.42 AU

Year: 15854 Days

Day: 17.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,156,730 km

• M1: 96,790 km (0.045 R)
• M2: 937,829 km (0.087 R)
• M3: 1,292,077 km (0.113 R)
• M4: 1,721,572 km (0.109 R)
• M5: 3,952,825 km (0.083 R)
• M6: 4,240,501 km (0.105 R)
• M7: 5,810,232 km (0.114 R)
• M8: 6,510,649 km (0.071 R)
• M9: 7,104,253 km (0.082 R)
• M10: 8,398,574 km (0.109 R)
• M11: 21,923,119 km (0.059 R)
• M12: 22,267,793 km (0.096 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 14,565 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit