🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.4

Radius: 12.8

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.62 AU - 0.9 AU

Year: 457 Days

Day: 10.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 68,486,131 km

• M1: 159,621 km (0.091 R)
• M2: 1,344,735 km (0.094 R)
• M3: 1,858,754 km (0.102 R)
• M4: 2,564,556 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.7

Radius: 11.6

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.94 AU - 1.46 AU

Year: 907 Days

Day: 7.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,486,131 km

• M1: 144,362 km (0.053 R)
• M2: 558,898 km (0.085 R)
• M3: 1,008,290 km (0.094 R)
• M4: 1,445,115 km (0.078 R)
• M5: 1,981,873 km (0.114 R)
• M6: 2,638,158 km (0.108 R)
• M7: 3,265,871 km (0.104 R)
• M8: 4,199,811 km (0.114 R)
• M9: 4,887,811 km (0.115 R)
• M10: 6,406,978 km (0.077 R)
• M11: 6,779,028 km (0.097 R)
• M12: 7,209,271 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.9

Radius: 9.7

Gravity: 9.16 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.98 AU - 2.24 AU

Year: 2116 Days

Day: 6.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,486,131 km

• M1: 120,725 km (0.052 R)
• M2: 475,871 km (0.057 R)
• M3: 850,763 km (0.118 R)
• M4: 1,237,025 km (0.088 R)
• M5: 1,541,606 km (0.118 R)
• M6: 2,027,799 km (0.047 R)
• M7: 2,429,619 km (0.114 R)
• M8: 2,761,726 km (0.059 R)
• M9: 3,737,404 km (0.114 R)
• M10: 4,534,162 km (0.116 R)
• M11: 5,561,301 km (0.058 R)
• M12: 6,274,434 km (0.097 R)
• M13: 7,759,342 km (0.1 R)
• M14: 8,815,653 km (0.047 R)
• M15: 10,221,275 km (0.077 R)
• M16: 11,133,223 km (0.048 R)
• M17: 11,892,881 km (0.075 R)
• M18: 13,426,558 km (0.068 R)
• M19: 14,057,263 km (0.061 R)
• M20: 15,040,121 km (0.06 R)
• M21: 16,118,123 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.9

Radius: 9.1

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.56 AU - 4.54 AU

Year: 5626 Days

Day: 9.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 66.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,486,131 km

• M1: 113,844 km (0.057 R)
• M2: 538,852 km (0.112 R)
• M3: 913,893 km (0.11 R)
• M4: 1,895,405 km (0.088 R)
• M5: 2,681,542 km (0.11 R)
• M6: 3,210,370 km (0.066 R)
• M7: 5,992,292 km (0.104 R)
• M8: 6,293,582 km (0.103 R)
• M9: 13,374,050 km (0.077 R)
• M10: 15,112,227 km (0.116 R)
• M11: 17,434,884 km (0.1 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 503.5

Radius: 3

Gravity: 55.94 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 6.96 AU - 7.6 AU

Year: 13558 Days

Day: 21.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 87.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 68,486,131 km

• M1: 37,399 km (0.092 R)
• M2: 219,610 km (0.113 R)
• M3: 442,211 km (0.066 R)
• M4: 593,455 km (0.103 R)
• M5: 835,355 km (0.06 R)
• M6: 1,569,581 km (0.117 R)
• M7: 1,772,585 km (0.067 R)
• M8: 2,064,002 km (0.115 R)
• M9: 2,307,697 km (0.05 R)
• M10: 2,446,673 km (0.11 R)
• M11: 2,989,115 km (0.116 R)
• M12: 3,633,882 km (0.046 R)
• M13: 4,102,422 km (0.044 R)
• M14: 4,703,656 km (0.101 R)
• M15: 4,894,992 km (0.088 R)
• M16: 5,641,186 km (0.089 R)
• M17: 7,061,767 km (0.074 R)
• M18: 9,386,818 km (0.056 R)
• M19: 10,052,079 km (0.101 R)
• M20: 10,584,648 km (0.103 R)
• M21: 10,748,009 km (0.032 R)
• M22: 13,532,175 km (0.118 R)
• M23: 14,115,157 km (0.042 R)
• M24: 14,579,958 km (0.095 R)
• M25: 16,250,966 km (0.072 R)
• M26: 19,070,437 km (0.082 R)
• M27: 19,967,576 km (0.118 R)
• M28: 20,217,105 km (0.059 R)
• M29: 23,931,321 km (0.088 R)
• M30: 25,751,329 km (0.064 R)
• M31: 27,150,069 km (0.11 R)
• M32: 27,558,770 km (0.025 R)
• M33: 32,328,997 km (0.057 R)
• M34: 34,908,065 km (0.119 R)
• M35: 36,001,476 km (0.08 R)
• M36: 38,256,364 km (0.118 R)
• M37: 38,641,130 km (0.06 R)
• M38: 40,205,924 km (0.09 R)
• M39: 40,603,704 km (0.11 R)
• M40: 43,880,197 km (0.059 R)
• M41: 44,020,520 km (0.105 R)
• M42: 49,573,144 km (0.059 R)
• M43: 52,201,429 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.4

Radius: 3.6

Gravity: 18.09 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 7.21 AU - 10.83 AU

Year: 18699 Days

Day: 16.4 Hours

Environment

Temp: -240 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 68,486,131 km

• M1: 84,373 km (0.105 R)
• M2: 196,572 km (0.076 R)
• M3: 439,369 km (0.092 R)
• M4: 712,983 km (0.045 R)
• M5: 1,113,756 km (0.09 R)
• M6: 1,588,879 km (0.115 R)
• M7: 2,683,187 km (0.118 R)
• M8: 6,099,853 km (0.08 R)
• M9: 6,948,971 km (0.111 R)
• M10: 10,433,554 km (0.089 R)
• M11: 13,001,252 km (0.113 R)
• M12: 23,528,155 km (0.111 R)
• M13: 24,544,971 km (0.071 R)
• M14: 29,115,486 km (0.119 R)
• M15: 36,372,029 km (0.105 R)
• M16: 47,458,578 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 355.1

Radius: 5.6

Gravity: 11.32 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 8.21 AU - 12.93 AU

Year: 23720 Days

Day: 24.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,486,131 km

• M1: 72,106 km (0.098 R)
• M2: 365,916 km (0.092 R)
• M3: 584,778 km (0.05 R)
• M4: 1,328,429 km (0.09 R)
• M5: 1,636,750 km (0.114 R)
• M6: 3,235,204 km (0.087 R)
• M7: 3,648,692 km (0.065 R)
• M8: 5,623,833 km (0.091 R)
• M9: 10,026,348 km (0.11 R)
• M10: 11,892,582 km (0.075 R)
• M11: 18,342,943 km (0.091 R)
• M12: 19,119,805 km (0.115 R)
• M13: 20,189,579 km (0.118 R)
• M14: 42,383,171 km (0.102 R)
• M15: 42,982,011 km (0.047 R)
• M16: 56,172,953 km (0.073 R)
• M17: 67,668,353 km (0.051 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: 263 - 12,872 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit