🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.6

Radius: 8.3

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.5 AU - 0.64 AU

Year: 292 Days

Day: 14.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,635,197 km

• M1: 103,223 km (0.107 R)
• M2: 377,884 km (0.12 R)
• M3: 643,570 km (0.101 R)
• M4: 1,073,066 km (0.063 R)
• M5: 1,841,400 km (0.092 R)
• M6: 2,470,160 km (0.105 R)
• M7: 3,628,646 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.8

Radius: 9.2

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.83 AU - 1.25 AU

Year: 719 Days

Day: 11.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 82,635,197 km

• M1: 114,442 km (0.09 R)
• M2: 404,812 km (0.087 R)
• M3: 789,278 km (0.098 R)
• M4: 1,233,883 km (0.073 R)
• M5: 1,559,109 km (0.111 R)
• M6: 2,279,273 km (0.103 R)
• M7: 2,623,647 km (0.06 R)
• M8: 3,508,519 km (0.056 R)
• M9: 4,171,836 km (0.076 R)
• M10: 4,802,391 km (0.103 R)
• M11: 5,424,868 km (0.096 R)
• M12: 6,291,937 km (0.112 R)
• M13: 6,667,577 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.9

Radius: 12.4

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.65 AU - 2.21 AU

Year: 1819 Days

Day: 10.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,635,197 km

• M1: 154,684 km (0.053 R)
• M2: 744,698 km (0.07 R)
• M3: 1,266,196 km (0.099 R)
• M4: 1,983,668 km (0.045 R)
• M5: 2,475,695 km (0.098 R)
• M6: 4,364,069 km (0.108 R)
• M7: 5,205,258 km (0.115 R)
• M8: 5,617,699 km (0.093 R)
• M9: 6,176,597 km (0.089 R)
• M10: 7,349,444 km (0.063 R)
• M11: 7,752,311 km (0.056 R)
• M12: 8,697,321 km (0.102 R)
• M13: 9,346,725 km (0.056 R)
• M14: 12,113,837 km (0.071 R)
• M15: 13,598,446 km (0.117 R)
• M16: 15,109,086 km (0.037 R)
• M17: 15,762,679 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.5

Radius: 11.7

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.79 AU - 2.17 AU

Year: 1890 Days

Day: 6.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 91.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 82,635,197 km

• M1: 200,611 km (0.119 R)
• M2: 653,144 km (0.11 R)
• M3: 1,960,630 km (0.117 R)
• M4: 2,486,915 km (0.096 R)
• M5: 3,137,067 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.1

Radius: 9.5

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.04 AU - 4.94 AU

Year: 5406 Days

Day: 7.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,635,197 km

• M1: 118,332 km (0.116 R)
• M2: 634,744 km (0.075 R)
• M3: 1,214,884 km (0.054 R)
• M4: 1,661,284 km (0.053 R)
• M5: 2,299,319 km (0.075 R)
• M6: 2,707,273 km (0.088 R)
• M7: 3,074,984 km (0.098 R)
• M8: 4,339,236 km (0.057 R)
• M9: 4,869,261 km (0.101 R)
• M10: 5,811,877 km (0.119 R)
• M11: 7,367,695 km (0.118 R)
• M12: 7,788,364 km (0.09 R)
• M13: 8,259,298 km (0.094 R)
• M14: 8,784,686 km (0.061 R)
• M15: 9,220,914 km (0.113 R)
• M16: 10,255,682 km (0.067 R)
• M17: 10,698,641 km (0.036 R)
• M18: 11,280,876 km (0.071 R)
• M19: 12,016,299 km (0.093 R)
• M20: 13,678,481 km (0.112 R)
• M21: 14,464,469 km (0.093 R)
• M22: 15,646,441 km (0.026 R)
• M23: 18,732,645 km (0.09 R)
• M24: 19,701,591 km (0.072 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 389.9

Radius: 3.5

Gravity: 31.83 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 5.09 AU - 7.45 AU

Year: 10649 Days

Day: 21.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,635,197 km

• M1: 44,131 km (0.101 R)
• M2: 183,257 km (0.117 R)
• M3: 546,930 km (0.092 R)
• M4: 876,195 km (0.049 R)
• M5: 1,312,422 km (0.116 R)
• M6: 1,802,505 km (0.115 R)
• M7: 2,055,774 km (0.115 R)
• M8: 3,022,475 km (0.117 R)
• M9: 3,496,850 km (0.034 R)
• M10: 5,597,504 km (0.12 R)
• M11: 7,310,549 km (0.085 R)
• M12: 10,390,470 km (0.113 R)
• M13: 11,303,017 km (0.034 R)
• M14: 12,433,528 km (0.083 R)
• M15: 13,285,787 km (0.118 R)
• M16: 13,460,816 km (0.064 R)
• M17: 20,368,199 km (0.114 R)
• M18: 26,547,788 km (0.079 R)
• M19: 35,298,216 km (0.106 R)
• M20: 41,052,498 km (0.047 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 314.2

Radius: 6.1

Gravity: 8.44 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 5.38 AU - 7.32 AU

Year: 10853 Days

Day: 16.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,635,197 km

• M1: 75,846 km (0.083 R)
• M2: 295,605 km (0.085 R)
• M3: 768,634 km (0.074 R)
• M4: 1,149,061 km (0.105 R)
• M5: 1,450,800 km (0.106 R)
• M6: 1,878,650 km (0.076 R)
• M7: 6,593,825 km (0.088 R)
• M8: 6,809,097 km (0.057 R)
• M9: 9,139,233 km (0.097 R)
• M10: 14,985,668 km (0.109 R)
• M11: 15,673,668 km (0.082 R)
• M12: 18,072,919 km (0.064 R)
• M13: 18,566,293 km (0.104 R)
• M14: 23,584,703 km (0.08 R)
• M15: 32,438,653 km (0.111 R)
• M16: 35,857,562 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 35.4

Radius: 6.7

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 6.8 AU - 6.86 AU

Year: 12107 Days

Day: 15.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,635,197 km

• M1: 83,326 km (0.096 R)
• M2: 550,819 km (0.118 R)
• M3: 1,936,096 km (0.119 R)
• M4: 3,863,215 km (0.111 R)
• M5: 4,446,049 km (0.072 R)
• M6: 5,707,159 km (0.083 R)
• M7: 6,863,700 km (0.119 R)
• M8: 14,709,360 km (0.114 R)
• M9: 18,120,790 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 963.2

Radius: 4.1

Gravity: 57.3 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 9.1 AU - 11.22 AU

Year: 21965 Days

Day: 19.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 82,635,197 km

• M1: 51,013 km (0.109 R)
• M2: 294,558 km (0.069 R)
• M3: 634,594 km (0.09 R)
• M4: 977,622 km (0.091 R)
• M5: 1,875,957 km (0.114 R)
• M6: 2,831,888 km (0.1 R)
• M7: 3,022,625 km (0.034 R)
• M8: 4,108,257 km (0.066 R)
• M9: 4,949,146 km (0.066 R)
• M10: 5,640,139 km (0.118 R)
• M11: 6,818,073 km (0.045 R)
• M12: 7,062,067 km (0.082 R)
• M13: 8,481,302 km (0.116 R)
• M14: 11,319,173 km (0.072 R)
• M15: 11,455,158 km (0.07 R)
• M16: 11,869,843 km (0.109 R)
• M17: 17,381,777 km (0.118 R)
• M18: 19,934,963 km (0.093 R)
• M19: 20,635,530 km (0.115 R)
• M20: 27,942,040 km (0.091 R)
• M21: 31,828,443 km (0.103 R)
• M22: 36,800,179 km (0.114 R)
• M23: 38,310,220 km (0.119 R)
• M24: 41,131,486 km (0.091 R)
• M25: 41,939,165 km (0.076 R)
• M26: 42,265,138 km (0.093 R)
• M27: 42,757,166 km (0.1 R)
• M28: 55,941,974 km (0.116 R)
• M29: 76,583,788 km (0.054 R)
• M30: 78,050,894 km (0.107 R)
• M31: 84,365,420 km (0.036 R)
• M32: 90,739,486 km (0.052 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 651.6

Radius: 7.9

Gravity: 10.44 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 8.56 AU - 12.52 AU

Year: 23209 Days

Day: 20.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 82,635,197 km

• M1: 110,553 km (0.117 R)
• M2: 360,381 km (0.027 R)
• M3: 1,063,641 km (0.111 R)
• M4: 2,195,648 km (0.053 R)
• M5: 2,653,567 km (0.108 R)
• M6: 3,981,248 km (0.101 R)
• M7: 4,450,836 km (0.109 R)
• M8: 5,745,306 km (0.07 R)
• M9: 8,131,991 km (0.092 R)
• M10: 12,041,581 km (0.108 R)
• M11: 12,455,818 km (0.086 R)
• M12: 14,132,062 km (0.109 R)
• M13: 15,383,448 km (0.116 R)
• M14: 16,369,298 km (0.066 R)
• M15: 18,105,082 km (0.077 R)
• M16: 19,769,059 km (0.079 R)
• M17: 21,231,678 km (0.072 R)
• M18: 22,143,028 km (0.095 R)
• M19: 22,452,546 km (0.057 R)
• M20: 23,080,259 km (0.116 R)
• M21: 23,935,360 km (0.089 R)
• M22: 28,651,732 km (0.083 R)
• M23: 31,162,433 km (0.096 R)
• M24: 41,102,015 km (0.063 R)
• M25: 41,569,808 km (0.108 R)
• M26: 42,515,864 km (0.057 R)
• M27: 44,779,131 km (0.116 R)
• M28: 54,449,137 km (0.12 R)
• M29: 55,581,294 km (0.074 R)
• M30: 60,468,507 km (0.103 R)
• M31: 66,916,624 km (0.07 R)
• M32: 71,986,645 km (0.084 R)
• M33: 72,666,268 km (0.075 R)
• M34: 77,781,319 km (0.12 R)
• M35: 82,387,886 km (0.112 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 286 - 18,029 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit