🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.7

Radius: 13.2

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.54 AU - 0.88 AU

Year: 386 Days

Day: 13.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,488,643 km

• M1: 164,109 km (0.111 R)
• M2: 791,822 km (0.115 R)
• M3: 1,216,829 km (0.034 R)
• M4: 1,633,310 km (0.071 R)
• M5: 2,109,928 km (0.107 R)
• M6: 3,099,369 km (0.101 R)
• M7: 3,617,426 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.3

Radius: 9.4

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.67 AU - 0.93 AU

Year: 462 Days

Day: 6 Hours

Environment

Temp: -150 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,488,643 km

• M1: 117,285 km (0.084 R)
• M2: 518,656 km (0.03 R)
• M3: 891,155 km (0.072 R)
• M4: 1,972,149 km (0.119 R)
• M5: 2,446,224 km (0.096 R)
• M6: 2,777,584 km (0.108 R)
• M7: 4,169,891 km (0.077 R)
• M8: 4,536,855 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.4

Radius: 14.7

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.81 AU - 0.89 AU

Year: 506 Days

Day: 9.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,488,643 km

• M1: 183,257 km (0.082 R)
• M2: 642,074 km (0.045 R)
• M3: 1,182,122 km (0.115 R)
• M4: 1,690,306 km (0.109 R)
• M5: 2,409,723 km (0.067 R)
• M6: 2,977,147 km (0.103 R)
• M7: 3,501,787 km (0.107 R)
• M8: 4,725,946 km (0.113 R)
• M9: 5,239,217 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.3

Radius: 8.7

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.89 AU - 1.23 AU

Year: 705 Days

Day: 5.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,488,643 km

• M1: 110,403 km (0.116 R)
• M2: 418,276 km (0.091 R)
• M3: 1,434,644 km (0.109 R)
• M4: 1,715,289 km (0.118 R)
• M5: 2,005,808 km (0.113 R)
• M6: 2,289,595 km (0.104 R)
• M7: 2,654,764 km (0.11 R)
• M8: 3,095,030 km (0.037 R)
• M9: 3,371,786 km (0.109 R)
• M10: 4,182,008 km (0.056 R)
• M11: 4,553,011 km (0.07 R)
• M12: 6,203,225 km (0.115 R)
• M13: 6,895,564 km (0.073 R)
• M14: 7,195,358 km (0.107 R)
• M15: 7,481,390 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.1

Radius: 12.6

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 4.4 AU - 5.74 AU

Year: 7371 Days

Day: 7.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,488,643 km

• M1: 156,629 km (0.064 R)
• M2: 696,827 km (0.096 R)
• M3: 1,820,307 km (0.107 R)
• M4: 3,705,838 km (0.068 R)
• M5: 4,531,469 km (0.075 R)
• M6: 5,692,648 km (0.036 R)
• M7: 6,377,208 km (0.047 R)
• M8: 6,934,908 km (0.04 R)
• M9: 8,148,596 km (0.109 R)
• M10: 9,813,471 km (0.086 R)
• M11: 10,606,040 km (0.068 R)
• M12: 12,425,450 km (0.063 R)
• M13: 15,163,988 km (0.079 R)
• M14: 16,609,253 km (0.078 R)
• M15: 17,667,509 km (0.029 R)
• M16: 18,420,883 km (0.066 R)
• M17: 23,073,676 km (0.106 R)
• M18: 26,282,700 km (0.044 R)
• M19: 29,682,462 km (0.083 R)
• M20: 30,357,148 km (0.083 R)
• M21: 35,693,304 km (0.097 R)
• M22: 37,008,120 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774

Radius: 10.8

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.84 AU - 6.98 AU

Year: 9277 Days

Day: 13.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,488,643 km

• M1: 135,087 km (0.074 R)
• M2: 513,121 km (0.119 R)
• M3: 1,140,684 km (0.099 R)
• M4: 1,600,398 km (0.117 R)
• M5: 2,306,949 km (0.067 R)
• M6: 5,877,700 km (0.109 R)
• M7: 6,564,803 km (0.09 R)
• M8: 9,373,503 km (0.107 R)
• M9: 18,555,521 km (0.108 R)
• M10: 22,091,417 km (0.088 R)
• M11: 33,516,954 km (0.077 R)
• M12: 34,310,870 km (0.054 R)
• M13: 42,291,916 km (0.108 R)
• M14: 42,687,603 km (0.097 R)
• M15: 46,081,231 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 601.8

Radius: 7.8

Gravity: 9.89 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7.2 AU - 7.82 AU

Year: 13288 Days

Day: 20.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,488,643 km

• M1: 107,262 km (0.045 R)
• M2: 447,746 km (0.071 R)
• M3: 1,004,699 km (0.093 R)
• M4: 1,365,829 km (0.115 R)
• M5: 2,451,610 km (0.104 R)
• M6: 3,536,793 km (0.069 R)
• M7: 3,859,027 km (0.055 R)
• M8: 7,358,719 km (0.071 R)
• M9: 8,484,443 km (0.083 R)
• M10: 17,437,128 km (0.071 R)
• M11: 22,091,118 km (0.047 R)
• M12: 23,093,423 km (0.075 R)
• M13: 26,181,572 km (0.106 R)
• M14: 27,719,588 km (0.027 R)
• M15: 33,280,889 km (0.12 R)
• M16: 46,546,330 km (0.096 R)
• M17: 51,279,457 km (0.103 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 392 - 19,171 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit