🌌 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: 126.9

Radius: 14.5

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.53 AU - 0.53 AU

Year: 262 Days

Day: 14.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,367,304 km

• M1: 180,415 km (0.08 R)
• M2: 686,056 km (0.101 R)
• M3: 1,270,684 km (0.082 R)
• M4: 1,990,100 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767

Radius: 12.7

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.49 AU - 0.65 AU

Year: 292 Days

Day: 8.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,367,304 km

• M1: 158,125 km (0.074 R)
• M2: 717,771 km (0.036 R)
• M3: 1,387,371 km (0.103 R)
• M4: 2,167,823 km (0.071 R)
• M5: 2,861,059 km (0.081 R)
• M6: 3,460,498 km (0.072 R)
• M7: 3,933,826 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.9

Radius: 13.7

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.6 AU - 0.68 AU

Year: 347 Days

Day: 5.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,367,304 km

• M1: 170,542 km (0.052 R)
• M2: 612,154 km (0.061 R)
• M3: 1,216,081 km (0.089 R)
• M4: 2,014,934 km (0.119 R)
• M5: 2,467,018 km (0.116 R)
• M6: 3,078,126 km (0.077 R)
• M7: 3,540,383 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.2

Radius: 11.5

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.6 AU - 0.84 AU

Year: 414 Days

Day: 7 Hours

Environment

Temp: -169 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,367,304 km

• M1: 143,016 km (0.048 R)
• M2: 500,704 km (0.083 R)
• M3: 968,048 km (0.119 R)
• M4: 1,328,429 km (0.096 R)
• M5: 2,401,345 km (0.118 R)
• M6: 2,852,383 km (0.053 R)
• M7: 3,277,241 km (0.062 R)
• M8: 4,116,335 km (0.11 R)
• M9: 4,676,429 km (0.09 R)
• M10: 5,434,891 km (0.081 R)
• M11: 6,146,079 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.5

Radius: 9.7

Gravity: 7.71 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.12 AU - 1.84 AU

Year: 1221 Days

Day: 11.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,367,304 km

• M1: 120,576 km (0.093 R)
• M2: 475,272 km (0.038 R)
• M3: 854,353 km (0.114 R)
• M4: 1,212,790 km (0.112 R)
• M5: 2,112,322 km (0.106 R)
• M6: 2,863,154 km (0.106 R)
• M7: 4,292,412 km (0.064 R)
• M8: 4,657,730 km (0.084 R)
• M9: 5,143,474 km (0.062 R)
• M10: 5,641,186 km (0.11 R)
• M11: 6,518,428 km (0.084 R)
• M12: 7,126,992 km (0.106 R)
• M13: 7,933,624 km (0.104 R)
• M14: 8,261,842 km (0.062 R)
• M15: 8,799,945 km (0.094 R)
• M16: 10,136,153 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.5

Radius: 9.5

Gravity: 10.04 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.47 AU - 3.23 AU

Year: 3263 Days

Day: 13.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 40,367,304 km

• M1: 118,781 km (0.098 R)
• M2: 420,220 km (0.113 R)
• M3: 994,227 km (0.044 R)
• M4: 1,557,015 km (0.083 R)
• M5: 2,078,214 km (0.117 R)
• M6: 2,472,105 km (0.098 R)
• M7: 3,689,981 km (0.106 R)
• M8: 4,385,162 km (0.078 R)
• M9: 5,427,112 km (0.074 R)
• M10: 7,030,801 km (0.074 R)
• M11: 7,484,980 km (0.092 R)
• M12: 7,787,168 km (0.096 R)
• M13: 8,097,583 km (0.115 R)
• M14: 8,706,596 km (0.095 R)
• M15: 9,154,642 km (0.085 R)
• M16: 10,219,031 km (0.047 R)
• M17: 10,759,976 km (0.087 R)
• M18: 11,451,867 km (0.099 R)
• M19: 13,214,130 km (0.025 R)
• M20: 14,364,537 km (0.116 R)
• M21: 14,990,754 km (0.075 R)
• M22: 16,921,165 km (0.095 R)
• M23: 21,673,141 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.2

Radius: 13.3

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.83 AU - 4.37 AU

Year: 5631 Days

Day: 6 Hours

Environment

Temp: -214 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,367,304 km

• M1: 178,620 km (0.105 R)
• M2: 804,837 km (0.049 R)
• M3: 2,936,756 km (0.072 R)
• M4: 7,220,790 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912

Radius: 9.6

Gravity: 9.9 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.04 AU - 4.22 AU

Year: 5693 Days

Day: 12.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,367,304 km

• M1: 119,379 km (0.12 R)
• M2: 547,229 km (0.087 R)
• M3: 999,912 km (0.069 R)
• M4: 1,347,278 km (0.112 R)
• M5: 2,662,543 km (0.065 R)
• M6: 3,365,354 km (0.1 R)
• M7: 3,988,279 km (0.092 R)
• M8: 5,021,701 km (0.098 R)
• M9: 5,616,502 km (0.102 R)
• M10: 6,324,250 km (0.048 R)
• M11: 7,496,050 km (0.084 R)
• M12: 7,956,064 km (0.102 R)
• M13: 8,681,613 km (0.051 R)
• M14: 9,362,882 km (0.104 R)
• M15: 10,783,763 km (0.104 R)
• M16: 12,134,033 km (0.072 R)
• M17: 13,990,692 km (0.06 R)
• M18: 15,349,190 km (0.043 R)
• M19: 15,841,816 km (0.064 R)
• M20: 17,250,878 km (0.081 R)
• M21: 17,918,235 km (0.087 R)
• M22: 18,464,566 km (0.105 R)
• M23: 22,055,663 km (0.1 R)
• M24: 23,646,487 km (0.074 R)
• M25: 28,047,357 km (0.116 R)
• M26: 28,691,226 km (0.077 R)
• M27: 30,973,342 km (0.087 R)
• M28: 32,158,605 km (0.104 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.8

Radius: 12.6

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.25 AU - 6.33 AU

Year: 8252 Days

Day: 10.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,367,304 km

• M1: 156,779 km (0.076 R)
• M2: 596,596 km (0.069 R)
• M3: 1,524,402 km (0.069 R)
• M4: 1,940,584 km (0.066 R)
• M5: 2,433,509 km (0.055 R)
• M6: 2,928,079 km (0.109 R)
• M7: 4,225,841 km (0.102 R)
• M8: 4,858,490 km (0.037 R)
• M9: 5,617,101 km (0.106 R)
• M10: 6,488,359 km (0.08 R)
• M11: 8,929,347 km (0.105 R)
• M12: 10,259,123 km (0.094 R)
• M13: 15,735,153 km (0.088 R)
• M14: 19,906,839 km (0.036 R)
• M15: 20,437,313 km (0.078 R)
• M16: 21,054,853 km (0.094 R)
• M17: 21,764,545 km (0.103 R)
• M18: 24,160,355 km (0.078 R)
• M19: 26,544,347 km (0.031 R)
• M20: 27,002,416 km (0.053 R)
• M21: 30,458,276 km (0.065 R)
• M22: 31,878,409 km (0.107 R)
• M23: 33,768,578 km (0.076 R)
• M24: 36,855,829 km (0.081 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 11,641 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit