🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.9

Radius: 11.3

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.47 AU - 0.57 AU

Year: 259 Days

Day: 7 Hours

Environment

Temp: -135 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 88,689,689 km

• M1: 140,472 km (0.109 R)
• M2: 655,239 km (0.101 R)
• M3: 1,626,129 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.5

Radius: 12.9

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.6 AU - 0.76 AU

Year: 387 Days

Day: 7.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 88,689,689 km

• M1: 165,904 km (0.104 R)
• M2: 646,263 km (0.113 R)
• M3: 1,180,178 km (0.089 R)
• M4: 1,664,576 km (0.074 R)
• M5: 2,377,110 km (0.098 R)
• M6: 2,970,864 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.3

Radius: 8.6

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.88 AU - 2.62 AU

Year: 2330 Days

Day: 5.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 88,689,689 km

• M1: 107,112 km (0.104 R)
• M2: 382,671 km (0.119 R)
• M3: 650,302 km (0.115 R)
• M4: 1,044,343 km (0.099 R)
• M5: 1,318,705 km (0.043 R)
• M6: 1,833,472 km (0.097 R)
• M7: 2,287,800 km (0.107 R)
• M8: 2,829,793 km (0.068 R)
• M9: 3,108,644 km (0.073 R)
• M10: 3,586,759 km (0.104 R)
• M11: 5,341,990 km (0.114 R)
• M12: 5,610,070 km (0.092 R)
• M13: 7,141,503 km (0.077 R)
• M14: 8,325,869 km (0.076 R)
• M15: 11,042,716 km (0.104 R)
• M16: 11,589,945 km (0.056 R)
• M17: 12,699,214 km (0.049 R)
• M18: 14,257,874 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.6

Radius: 9

Gravity: 11.38 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.54 AU - 4 AU

Year: 4082 Days

Day: 10.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 88,689,689 km

• M1: 111,899 km (0.091 R)
• M2: 429,196 km (0.1 R)
• M3: 879,486 km (0.1 R)
• M4: 1,728,753 km (0.104 R)
• M5: 2,067,443 km (0.054 R)
• M6: 2,482,876 km (0.06 R)
• M7: 3,066,008 km (0.115 R)
• M8: 3,380,164 km (0.105 R)
• M9: 3,936,818 km (0.092 R)
• M10: 4,807,178 km (0.096 R)
• M11: 5,371,012 km (0.11 R)
• M12: 5,888,920 km (0.116 R)
• M13: 6,630,926 km (0.088 R)
• M14: 8,874,594 km (0.081 R)
• M15: 10,758,331 km (0.113 R)
• M16: 12,495,611 km (0.093 R)
• M17: 14,358,104 km (0.07 R)
• M18: 16,696,319 km (0.085 R)
• M19: 17,119,532 km (0.107 R)
• M20: 19,409,725 km (0.026 R)
• M21: 20,975,566 km (0.1 R)
• M22: 23,216,991 km (0.109 R)
• M23: 24,356,777 km (0.106 R)
• M24: 26,829,929 km (0.112 R)
• M25: 28,683,597 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.4

Radius: 11.3

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.72 AU - 4.78 AU

Year: 7146 Days

Day: 14.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 88,689,689 km

• M1: 140,772 km (0.096 R)
• M2: 581,337 km (0.096 R)
• M3: 944,411 km (0.11 R)
• M4: 1,776,026 km (0.117 R)
• M5: 2,431,564 km (0.09 R)
• M6: 2,798,228 km (0.081 R)
• M7: 3,428,933 km (0.071 R)
• M8: 4,947,501 km (0.117 R)
• M9: 5,964,018 km (0.046 R)
• M10: 7,219,892 km (0.086 R)
• M11: 7,724,486 km (0.097 R)
• M12: 9,048,577 km (0.107 R)
• M13: 11,310,497 km (0.072 R)
• M14: 12,856,591 km (0.094 R)
• M15: 13,816,560 km (0.06 R)
• M16: 14,482,719 km (0.049 R)
• M17: 17,813,067 km (0.1 R)
• M18: 20,821,032 km (0.115 R)
• M19: 22,143,926 km (0.11 R)
• M20: 27,044,004 km (0.088 R)
• M21: 28,439,902 km (0.112 R)
• M22: 29,791,518 km (0.051 R)
• M23: 31,374,713 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.3

Radius: 11.9

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.95 AU - 5.57 AU

Year: 7168 Days

Day: 14.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 88,689,689 km

• M1: 148,102 km (0.063 R)
• M2: 595,998 km (0.053 R)
• M3: 971,040 km (0.094 R)
• M4: 1,575,266 km (0.079 R)
• M5: 2,119,951 km (0.069 R)
• M6: 2,544,809 km (0.084 R)
• M7: 3,455,711 km (0.092 R)
• M8: 4,878,985 km (0.105 R)
• M9: 7,093,781 km (0.12 R)
• M10: 7,895,925 km (0.046 R)
• M11: 11,463,984 km (0.115 R)
• M12: 12,514,311 km (0.102 R)
• M13: 13,286,984 km (0.114 R)
• M14: 15,296,083 km (0.081 R)
• M15: 18,891,369 km (0.076 R)
• M16: 19,687,379 km (0.08 R)
• M17: 20,205,436 km (0.11 R)
• M18: 20,884,760 km (0.116 R)
• M19: 30,860,545 km (0.117 R)
• M20: 34,251,180 km (0.101 R)
• M21: 34,893,255 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.1

Radius: 9.1

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 4.8 AU - 4.84 AU

Year: 7304 Days

Day: 7.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 88,689,689 km

• M1: 113,246 km (0.092 R)
• M2: 409,001 km (0.092 R)
• M3: 695,630 km (0.064 R)
• M4: 1,035,217 km (0.085 R)
• M5: 2,273,140 km (0.037 R)
• M6: 3,004,823 km (0.093 R)
• M7: 3,477,253 km (0.093 R)
• M8: 3,930,534 km (0.109 R)
• M9: 4,230,478 km (0.108 R)
• M10: 4,620,779 km (0.026 R)
• M11: 5,061,794 km (0.038 R)
• M12: 5,389,712 km (0.026 R)
• M13: 6,396,955 km (0.097 R)
• M14: 7,045,461 km (0.073 R)
• M15: 8,587,516 km (0.103 R)
• M16: 8,897,483 km (0.115 R)
• M17: 10,041,907 km (0.049 R)
• M18: 10,783,015 km (0.094 R)
• M19: 11,938,508 km (0.088 R)
• M20: 13,587,526 km (0.058 R)
• M21: 15,269,903 km (0.104 R)
• M22: 16,604,915 km (0.065 R)
• M23: 17,392,996 km (0.106 R)
• M24: 18,913,060 km (0.114 R)
• M25: 19,705,480 km (0.118 R)
• M26: 20,726,935 km (0.072 R)
• M27: 22,580,303 km (0.116 R)
• M28: 24,464,189 km (0.085 R)
• M29: 25,010,071 km (0.093 R)
• M30: 27,191,358 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 613.2

Radius: 7.4

Gravity: 11.2 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 6.03 AU - 8.67 AU

Year: 13754 Days

Day: 18.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 88,689,689 km

• M1: 92,003 km (0.063 R)
• M2: 382,223 km (0.076 R)
• M3: 658,979 km (0.07 R)
• M4: 1,344,286 km (0.114 R)
• M5: 1,710,502 km (0.101 R)
• M6: 2,068,340 km (0.072 R)
• M7: 2,601,208 km (0.077 R)
• M8: 4,627,361 km (0.074 R)
• M9: 5,324,787 km (0.104 R)
• M10: 6,559,567 km (0.097 R)
• M11: 8,159,068 km (0.071 R)
• M12: 9,325,931 km (0.079 R)
• M13: 10,435,050 km (0.117 R)
• M14: 12,598,983 km (0.074 R)
• M15: 13,167,305 km (0.069 R)
• M16: 15,541,424 km (0.04 R)
• M17: 16,195,166 km (0.051 R)
• M18: 16,641,118 km (0.103 R)
• M19: 19,741,533 km (0.12 R)
• M20: 20,594,540 km (0.109 R)
• M21: 22,741,569 km (0.12 R)
• M22: 25,730,086 km (0.084 R)
• M23: 26,747,351 km (0.089 R)
• M24: 27,685,629 km (0.037 R)
• M25: 28,109,590 km (0.082 R)
• M26: 28,430,327 km (0.117 R)
• M27: 30,294,616 km (0.113 R)
• M28: 31,658,649 km (0.096 R)
• M29: 33,540,441 km (0.101 R)
• M30: 39,765,508 km (0.119 R)
• M31: 41,261,636 km (0.046 R)
• M32: 45,092,239 km (0.11 R)
• M33: 47,621,939 km (0.102 R)
• M34: 48,998,838 km (0.119 R)
• M35: 54,440,012 km (0.085 R)
• M36: 54,772,119 km (0.119 R)
• M37: 56,963,578 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 807.3

Radius: 3.1

Gravity: 84.01 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 8.12 AU - 12.7 AU

Year: 23184 Days

Day: 21.3 Hours

Environment

Temp: -242 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,689,689 km

• M1: 55,800 km (0.119 R)
• M2: 184,155 km (0.112 R)
• M3: 505,641 km (0.056 R)
• M4: 636,988 km (0.114 R)
• M5: 3,522,880 km (0.058 R)
• M6: 4,038,245 km (0.113 R)
• M7: 6,283,559 km (0.103 R)
• M8: 6,940,444 km (0.079 R)
• M9: 8,389,149 km (0.065 R)
• M10: 10,468,261 km (0.113 R)
• M11: 12,147,497 km (0.102 R)
• M12: 18,338,305 km (0.089 R)
• M13: 18,996,386 km (0.081 R)
• M14: 23,716,349 km (0.105 R)
• M15: 26,226,900 km (0.104 R)
• M16: 31,633,816 km (0.029 R)
• M17: 40,039,571 km (0.036 R)
• M18: 43,086,431 km (0.094 R)
• M19: 46,112,197 km (0.061 R)
• M20: 70,201,793 km (0.05 R)
• M21: 76,768,092 km (0.106 R)
• M22: 83,732,023 km (0.21 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 11,080 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit