🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.5

Radius: 9

Gravity: 8.92 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.56 AU - 0.56 AU

Year: 289 Days

Day: 10.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,981,117 km

• M1: 112,797 km (0.075 R)
• M2: 432,487 km (0.102 R)
• M3: 735,423 km (0.079 R)
• M4: 1,534,874 km (0.061 R)
• M5: 2,612,577 km (0.119 R)
• M6: 2,995,099 km (0.03 R)
• M7: 3,470,072 km (0.101 R)
• M8: 4,320,985 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.5

Radius: 11.3

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.66 AU - 0.96 AU

Year: 503 Days

Day: 14.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 22,981,117 km

• M1: 140,622 km (0.116 R)
• M2: 532,568 km (0.067 R)
• M3: 894,296 km (0.113 R)
• M4: 1,423,573 km (0.109 R)
• M5: 1,845,290 km (0.051 R)
• M6: 2,273,140 km (0.069 R)
• M7: 2,846,099 km (0.092 R)
• M8: 3,810,856 km (0.096 R)
• M9: 4,216,416 km (0.103 R)
• M10: 4,608,961 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.8

Radius: 8.5

Gravity: 10.88 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1 AU - 1.02 AU

Year: 701 Days

Day: 5.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 22,981,117 km

• M1: 105,766 km (0.116 R)
• M2: 436,676 km (0.045 R)
• M3: 752,178 km (0.036 R)
• M4: 1,121,086 km (0.076 R)
• M5: 1,431,951 km (0.096 R)
• M6: 1,800,410 km (0.078 R)
• M7: 2,083,898 km (0.111 R)
• M8: 2,355,119 km (0.104 R)
• M9: 2,789,103 km (0.106 R)
• M10: 3,145,594 km (0.098 R)
• M11: 3,574,192 km (0.097 R)
• M12: 4,515,612 km (0.107 R)
• M13: 5,369,666 km (0.119 R)
• M14: 6,771,398 km (0.025 R)
• M15: 7,395,221 km (0.046 R)
• M16: 8,302,383 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.4

Radius: 8.2

Gravity: 14.86 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.14 AU - 1.42 AU

Year: 1000 Days

Day: 12 Hours

Environment

Temp: -195 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 22,981,117 km

• M1: 103,372 km (0.065 R)
• M2: 471,682 km (0.097 R)
• M3: 728,841 km (0.076 R)
• M4: 1,131,708 km (0.106 R)
• M5: 1,418,038 km (0.109 R)
• M6: 2,685,132 km (0.111 R)
• M7: 3,074,087 km (0.088 R)
• M8: 3,348,898 km (0.073 R)
• M9: 3,640,165 km (0.11 R)
• M10: 3,915,126 km (0.098 R)
• M11: 4,274,011 km (0.081 R)
• M12: 4,959,768 km (0.087 R)
• M13: 5,359,942 km (0.089 R)
• M14: 5,868,425 km (0.063 R)
• M15: 7,030,950 km (0.045 R)
• M16: 7,877,973 km (0.09 R)
• M17: 9,468,648 km (0.111 R)
• M18: 10,148,420 km (0.095 R)
• M19: 11,161,048 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.3

Radius: 13.8

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.47 AU - 2.11 AU

Year: 1653 Days

Day: 8.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 22,981,117 km

• M1: 171,738 km (0.061 R)
• M2: 734,526 km (0.08 R)
• M3: 1,456,934 km (0.084 R)
• M4: 2,718,642 km (0.092 R)
• M5: 4,557,499 km (0.089 R)
• M6: 5,332,267 km (0.095 R)
• M7: 5,958,034 km (0.111 R)
• M8: 6,834,379 km (0.098 R)
• M9: 7,465,083 km (0.115 R)
• M10: 7,935,269 km (0.094 R)
• M11: 8,425,202 km (0.067 R)
• M12: 10,902,842 km (0.049 R)
• M13: 12,404,207 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.1

Radius: 15

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.55 AU - 2.43 AU

Year: 1938 Days

Day: 11.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,981,117 km

• M1: 186,549 km (0.101 R)
• M2: 662,419 km (0.061 R)
• M3: 1,658,741 km (0.082 R)
• M4: 2,243,220 km (0.063 R)
• M5: 2,908,482 km (0.102 R)
• M6: 3,572,397 km (0.071 R)
• M7: 4,153,734 km (0.113 R)
• M8: 4,679,421 km (0.118 R)
• M9: 5,356,501 km (0.11 R)
• M10: 7,166,935 km (0.109 R)
• M11: 7,788,065 km (0.104 R)
• M12: 8,415,778 km (0.097 R)
• M13: 11,093,580 km (0.102 R)
• M14: 12,996,764 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454

Radius: 12.3

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 3.75 AU - 4.47 AU

Year: 5751 Days

Day: 11.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,981,117 km

• M1: 157,527 km (0.119 R)
• M2: 1,149,061 km (0.118 R)
• M3: 2,703,533 km (0.101 R)
• M4: 3,352,339 km (0.03 R)
• M5: 4,102,871 km (0.058 R)
• M6: 6,270,245 km (0.055 R)
• M7: 9,556,462 km (0.077 R)
• M8: 10,399,446 km (0.069 R)
• M9: 13,848,724 km (0.09 R)
• M10: 15,039,074 km (0.091 R)
• M11: 17,933,793 km (0.12 R)
• M12: 18,631,368 km (0.102 R)
• M13: 20,284,274 km (0.095 R)
• M14: 23,278,027 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169

Radius: 3.1

Gravity: 17.59 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.94 AU - 8.48 AU

Year: 13363 Days

Day: 18.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,981,117 km

• M1: 38,596 km (0.049 R)
• M2: 138,528 km (0.083 R)
• M3: 1,232,387 km (0.046 R)
• M4: 1,668,615 km (0.081 R)
• M5: 2,022,114 km (0.068 R)
• M6: 2,150,320 km (0.084 R)
• M7: 2,549,597 km (0.117 R)
• M8: 5,310,724 km (0.109 R)
• M9: 7,184,288 km (0.103 R)
• M10: 9,815,266 km (0.101 R)
• M11: 10,324,048 km (0.057 R)
• M12: 11,444,387 km (0.099 R)
• M13: 15,781,379 km (0.077 R)
• M14: 16,672,234 km (0.059 R)
• M15: 16,867,459 km (0.107 R)
• M16: 17,596,150 km (0.035 R)
• M17: 23,948,226 km (0.11 R)
• M18: 27,044,602 km (0.061 R)
• M19: 31,673,011 km (0.111 R)
• M20: 35,605,789 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 22.4

Radius: 7.4

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7.3 AU - 10.52 AU

Year: 18358 Days

Day: 20.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 22,981,117 km

• M1: 93,648 km (0.116 R)
• M2: 1,328,279 km (0.109 R)
• M3: 1,861,596 km (0.104 R)
• M4: 3,423,098 km (0.093 R)
• M5: 4,557,948 km (0.106 R)
• M6: 9,825,887 km (0.114 R)
• M7: 14,148,817 km (0.11 R)
• M8: 14,803,607 km (0.111 R)
• M9: 17,001,648 km (0.065 R)
• M10: 17,397,484 km (0.089 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 10,619 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit