🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.67 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.3

Radius: 13.7

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.31 AU - 1.37 AU

Year: 1071 Days

Day: 14.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,396,342 km

• M1: 170,841 km (0.044 R)
• M2: 639,531 km (0.117 R)
• M3: 1,336,807 km (0.115 R)
• M4: 1,807,292 km (0.048 R)
• M5: 2,468,215 km (0.074 R)
• M6: 3,056,584 km (0.08 R)
• M7: 3,485,331 km (0.117 R)
• M8: 3,970,477 km (0.081 R)
• M9: 4,765,590 km (0.107 R)
• M10: 6,449,164 km (0.038 R)
• M11: 7,426,637 km (0.107 R)
• M12: 8,105,661 km (0.119 R)
• M13: 9,244,101 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.4

Radius: 9.7

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.16 AU - 1.58 AU

Year: 1107 Days

Day: 6.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 87,396,342 km

• M1: 139,874 km (0.072 R)
• M2: 491,279 km (0.083 R)
• M3: 956,529 km (0.095 R)
• M4: 1,337,704 km (0.1 R)
• M5: 4,042,882 km (0.114 R)
• M6: 4,406,854 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.5

Radius: 12.7

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.38 AU - 1.96 AU

Year: 1490 Days

Day: 5.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 87,396,342 km

• M1: 158,125 km (0.105 R)
• M2: 841,937 km (0.093 R)
• M3: 1,260,811 km (0.109 R)
• M4: 1,986,510 km (0.083 R)
• M5: 2,560,816 km (0.034 R)
• M6: 6,541,017 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.6

Radius: 13.2

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.83 AU - 2.37 AU

Year: 2101 Days

Day: 15 Hours

Environment

Temp: -200 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 87,396,342 km

• M1: 165,306 km (0.115 R)
• M2: 669,600 km (0.054 R)
• M3: 1,447,359 km (0.082 R)
• M4: 2,295,579 km (0.118 R)
• M5: 3,086,503 km (0.094 R)
• M6: 4,103,470 km (0.102 R)
• M7: 4,624,519 km (0.098 R)
• M8: 5,149,009 km (0.116 R)
• M9: 5,584,489 km (0.117 R)
• M10: 6,318,565 km (0.102 R)
• M11: 6,794,137 km (0.092 R)
• M12: 7,605,257 km (0.095 R)
• M13: 9,821,848 km (0.1 R)
• M14: 11,027,757 km (0.081 R)
• M15: 11,439,300 km (0.039 R)
• M16: 11,861,166 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.7

Radius: 12.4

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 2.24 AU - 2.26 AU

Year: 2330 Days

Day: 8.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 87,396,342 km

• M1: 154,235 km (0.029 R)
• M2: 657,931 km (0.116 R)
• M3: 1,064,838 km (0.038 R)
• M4: 1,538,165 km (0.116 R)
• M5: 2,127,880 km (0.086 R)
• M6: 3,784,078 km (0.114 R)
• M7: 4,632,298 km (0.114 R)
• M8: 5,627,573 km (0.119 R)
• M9: 6,732,951 km (0.071 R)
• M10: 7,122,504 km (0.116 R)
• M11: 8,225,489 km (0.06 R)
• M12: 9,268,635 km (0.107 R)
• M13: 11,935,816 km (0.115 R)
• M14: 13,445,408 km (0.088 R)
• M15: 14,520,119 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.7

Radius: 8.6

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.22 AU - 3.22 AU

Year: 3096 Days

Day: 11.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 87,396,342 km

• M1: 114,293 km (0.117 R)
• M2: 690,993 km (0.03 R)
• M3: 964,457 km (0.098 R)
• M4: 1,348,326 km (0.1 R)
• M5: 1,937,891 km (0.055 R)
• M6: 3,000,784 km (0.117 R)
• M7: 3,641,212 km (0.079 R)
• M8: 5,854,363 km (0.115 R)
• M9: 6,139,945 km (0.084 R)
• M10: 7,679,756 km (0.053 R)
• M11: 11,624,203 km (0.104 R)
• M12: 12,798,846 km (0.078 R)
• M13: 13,192,737 km (0.06 R)
• M14: 16,281,783 km (0.045 R)
• M15: 18,184,818 km (0.078 R)
• M16: 18,571,379 km (0.104 R)

Asteroid Belt

Center: 4.84 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 643.3

Radius: 3.7

Gravity: 46.99 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 6.11 AU - 7.79 AU

Year: 12647 Days

Day: 15.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 87,396,342 km

• M1: 46,226 km (0.062 R)
• M2: 169,345 km (0.06 R)
• M3: 446,550 km (0.067 R)
• M4: 766,988 km (0.118 R)
• M5: 892,800 km (0.097 R)
• M6: 1,199,177 km (0.101 R)
• M7: 1,356,254 km (0.091 R)
• M8: 1,679,984 km (0.095 R)
• M9: 1,826,440 km (0.109 R)
• M10: 2,984,926 km (0.078 R)
• M11: 5,560,852 km (0.064 R)
• M12: 6,459,486 km (0.087 R)
• M13: 7,847,605 km (0.073 R)
• M14: 9,886,325 km (0.069 R)
• M15: 10,364,888 km (0.105 R)
• M16: 11,139,955 km (0.1 R)
• M17: 12,071,950 km (0.056 R)
• M18: 13,054,957 km (0.053 R)
• M19: 16,030,908 km (0.087 R)
• M20: 16,176,018 km (0.099 R)
• M21: 16,989,681 km (0.045 R)
• M22: 17,908,212 km (0.087 R)
• M23: 24,028,560 km (0.08 R)
• M24: 26,781,759 km (0.095 R)
• M25: 29,957,273 km (0.097 R)
• M26: 33,849,211 km (0.076 R)
• M27: 38,064,879 km (0.098 R)
• M28: 40,836,030 km (0.069 R)
• M29: 43,456,536 km (0.078 R)
• M30: 43,880,197 km (0.07 R)
• M31: 46,333,602 km (0.052 R)
• M32: 48,876,916 km (0.073 R)
• M33: 52,623,445 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 752.8

Radius: 4.6

Gravity: 35.58 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 8.19 AU - 12.81 AU

Year: 23485 Days

Day: 16.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 87,396,342 km

• M1: 67,469 km (0.082 R)
• M2: 272,119 km (0.108 R)
• M3: 478,713 km (0.069 R)
• M4: 1,205,160 km (0.104 R)
• M5: 5,158,733 km (0.103 R)
• M6: 5,318,204 km (0.084 R)
• M7: 8,558,494 km (0.077 R)
• M8: 10,395,556 km (0.094 R)
• M9: 17,186,402 km (0.067 R)
• M10: 19,111,726 km (0.099 R)
• M11: 19,687,229 km (0.104 R)
• M12: 20,872,493 km (0.108 R)
• M13: 26,680,032 km (0.067 R)
• M14: 38,396,986 km (0.106 R)
• M15: 41,504,134 km (0.103 R)
• M16: 49,636,424 km (0.105 R)
• M17: 51,454,636 km (0.094 R)
• M18: 56,584,347 km (0.025 R)
• M19: 60,391,763 km (0.049 R)
• M20: 61,421,295 km (0.091 R)
• M21: 82,512,052 km (0.086 R)
• M22: 83,017,394 km (0.051 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 436 - 20,001 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit