🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.7

Radius: 14.2

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.54 AU - 0.72 AU

Year: 351 Days

Day: 9.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 63,031,578 km

• M1: 177,722 km (0.073 R)
• M2: 1,247,945 km (0.096 R)
• M3: 1,752,389 km (0.07 R)
• M4: 2,671,968 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.4

Radius: 10.9

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.7 AU - 1.06 AU

Year: 580 Days

Day: 8.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,031,578 km

• M1: 135,536 km (0.069 R)
• M2: 526,585 km (0.059 R)
• M3: 867,668 km (0.118 R)
• M4: 1,235,379 km (0.071 R)
• M5: 1,601,445 km (0.114 R)
• M6: 2,285,855 km (0.096 R)
• M7: 2,778,332 km (0.104 R)
• M8: 3,123,903 km (0.119 R)
• M9: 3,556,091 km (0.088 R)
• M10: 4,116,933 km (0.075 R)
• M11: 4,554,956 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.4

Radius: 11.4

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.89 AU - 0.93 AU

Year: 610 Days

Day: 12.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,031,578 km

• M1: 149,448 km (0.119 R)
• M2: 574,905 km (0.045 R)
• M3: 1,101,639 km (0.025 R)
• M4: 1,534,126 km (0.078 R)
• M5: 2,322,058 km (0.119 R)
• M6: 3,793,802 km (0.039 R)
• M7: 5,471,991 km (0.114 R)
• M8: 6,015,480 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.2

Radius: 10.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.91 AU - 1.11 AU

Year: 713 Days

Day: 8.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 63,031,578 km

• M1: 132,095 km (0.102 R)
• M2: 536,608 km (0.101 R)
• M3: 1,130,362 km (0.118 R)
• M4: 1,856,958 km (0.08 R)
• M5: 2,328,790 km (0.048 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.1

Radius: 14.2

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.89 AU - 1.45 AU

Year: 890 Days

Day: 7.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,031,578 km

• M1: 176,974 km (0.109 R)
• M2: 674,238 km (0.096 R)
• M3: 1,452,296 km (0.08 R)
• M4: 2,560,068 km (0.098 R)
• M5: 4,204,598 km (0.083 R)
• M6: 5,943,673 km (0.079 R)
• M7: 6,725,471 km (0.118 R)
• M8: 8,049,861 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.1

Radius: 9.7

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1 AU - 1.58 AU

Year: 1030 Days

Day: 14 Hours

Environment

Temp: -193 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,031,578 km

• M1: 120,576 km (0.055 R)
• M2: 509,979 km (0.111 R)
• M3: 1,147,715 km (0.106 R)
• M4: 1,779,018 km (0.099 R)
• M5: 2,226,764 km (0.107 R)
• M6: 2,659,850 km (0.115 R)
• M7: 3,185,687 km (0.037 R)
• M8: 3,493,709 km (0.065 R)
• M9: 4,461,158 km (0.093 R)
• M10: 4,782,195 km (0.081 R)
• M11: 5,820,554 km (0.105 R)
• M12: 6,687,922 km (0.067 R)
• M13: 7,459,847 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.3

Radius: 11.9

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.35 AU - 3.21 AU

Year: 3258 Days

Day: 6.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 63,031,578 km

• M1: 148,102 km (0.106 R)
• M2: 553,512 km (0.102 R)
• M3: 1,001,857 km (0.12 R)
• M4: 1,676,693 km (0.084 R)
• M5: 2,308,146 km (0.054 R)
• M6: 3,061,371 km (0.087 R)
• M7: 4,638,132 km (0.05 R)
• M8: 5,100,091 km (0.104 R)
• M9: 5,763,707 km (0.039 R)
• M10: 7,120,111 km (0.088 R)
• M11: 7,919,262 km (0.065 R)
• M12: 9,626,025 km (0.111 R)
• M13: 10,306,994 km (0.035 R)
• M14: 10,905,236 km (0.066 R)
• M15: 12,007,772 km (0.112 R)
• M16: 14,387,575 km (0.117 R)
• M17: 15,230,559 km (0.079 R)
• M18: 16,007,122 km (0.104 R)
• M19: 16,912,189 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.5

Radius: 11.7

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.55 AU - 5.87 AU

Year: 7185 Days

Day: 12.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,031,578 km

• M1: 145,559 km (0.054 R)
• M2: 1,028,635 km (0.114 R)
• M3: 1,780,963 km (0.084 R)
• M4: 2,455,649 km (0.118 R)
• M5: 3,274,099 km (0.043 R)
• M6: 3,758,497 km (0.09 R)
• M7: 4,537,004 km (0.077 R)
• M8: 5,709,253 km (0.117 R)
• M9: 6,478,037 km (0.073 R)
• M10: 7,887,099 km (0.055 R)
• M11: 8,683,408 km (0.099 R)
• M12: 9,161,972 km (0.11 R)
• M13: 9,616,151 km (0.083 R)
• M14: 10,172,356 km (0.106 R)
• M15: 10,614,567 km (0.091 R)
• M16: 11,116,019 km (0.08 R)
• M17: 11,680,901 km (0.088 R)
• M18: 14,518,773 km (0.104 R)
• M19: 17,660,926 km (0.106 R)
• M20: 20,453,170 km (0.111 R)
• M21: 22,396,148 km (0.091 R)
• M22: 24,775,502 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 931

Radius: 5.9

Gravity: 26.75 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 5.27 AU - 8.67 AU

Year: 12935 Days

Day: 18.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 63,031,578 km

• M1: 73,453 km (0.118 R)
• M2: 1,045,390 km (0.094 R)
• M3: 1,425,967 km (0.059 R)
• M4: 1,673,252 km (0.074 R)
• M5: 1,985,463 km (0.078 R)
• M6: 2,335,971 km (0.085 R)
• M7: 3,340,670 km (0.082 R)
• M8: 4,042,583 km (0.047 R)
• M9: 4,286,727 km (0.085 R)
• M10: 4,804,784 km (0.058 R)
• M11: 5,696,388 km (0.068 R)
• M12: 8,229,828 km (0.103 R)
• M13: 9,499,614 km (0.074 R)
• M14: 10,377,604 km (0.12 R)
• M15: 11,794,296 km (0.115 R)
• M16: 12,484,840 km (0.116 R)
• M17: 14,153,903 km (0.065 R)
• M18: 15,815,936 km (0.074 R)
• M19: 17,927,958 km (0.119 R)
• M20: 19,782,224 km (0.084 R)
• M21: 22,040,404 km (0.073 R)
• M22: 22,511,787 km (0.1 R)
• M23: 23,182,883 km (0.091 R)
• M24: 24,868,402 km (0.065 R)
• M25: 25,379,279 km (0.104 R)
• M26: 28,481,191 km (0.096 R)
• M27: 28,928,039 km (0.102 R)
• M28: 32,550,402 km (0.028 R)
• M29: 33,656,080 km (0.093 R)
• M30: 34,786,442 km (0.073 R)
• M31: 36,072,086 km (0.083 R)
• M32: 37,522,437 km (0.114 R)
• M33: 38,465,353 km (0.112 R)
• M34: 40,820,771 km (0.096 R)
• M35: 43,565,294 km (0.088 R)
• M36: 44,606,794 km (0.115 R)
• M37: 47,516,921 km (0.11 R)
• M38: 58,606,462 km (0.044 R)
• M39: 62,842,924 km (0.118 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 13,879 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit