🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.7

Radius: 12.4

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.72 AU - 0.88 AU

Year: 485 Days

Day: 7 Hours

Environment

Temp: -155 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,243,378 km

• M1: 154,235 km (0.078 R)
• M2: 541,993 km (0.087 R)
• M3: 930,499 km (0.066 R)
• M4: 1,409,661 km (0.037 R)
• M5: 1,935,497 km (0.061 R)
• M6: 2,450,862 km (0.087 R)
• M7: 2,921,347 km (0.09 R)
• M8: 3,895,379 km (0.109 R)
• M9: 4,480,606 km (0.055 R)
• M10: 4,897,535 km (0.072 R)
• M11: 5,545,743 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.3

Radius: 9.6

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.68 AU - 1.04 AU

Year: 541 Days

Day: 5.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,243,378 km

• M1: 119,379 km (0.114 R)
• M2: 461,210 km (0.095 R)
• M3: 880,383 km (0.09 R)
• M4: 1,391,859 km (0.038 R)
• M5: 1,845,739 km (0.069 R)
• M6: 2,510,252 km (0.102 R)
• M7: 3,177,459 km (0.082 R)
• M8: 3,731,569 km (0.118 R)
• M9: 4,169,442 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965

Radius: 12.7

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.09 AU - 1.57 AU

Year: 1040 Days

Day: 9.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,243,378 km

• M1: 157,975 km (0.051 R)
• M2: 571,763 km (0.076 R)
• M3: 1,292,077 km (0.08 R)
• M4: 1,732,044 km (0.115 R)
• M5: 2,628,285 km (0.077 R)
• M6: 3,261,234 km (0.068 R)
• M7: 4,061,133 km (0.057 R)
• M8: 4,462,804 km (0.061 R)
• M9: 5,809,484 km (0.051 R)
• M10: 7,059,524 km (0.082 R)
• M11: 8,177,319 km (0.113 R)
• M12: 8,937,426 km (0.104 R)
• M13: 9,713,539 km (0.11 R)
• M14: 11,537,437 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.1

Radius: 13.4

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.35 AU - 1.71 AU

Year: 1284 Days

Day: 10.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,243,378 km

• M1: 168,597 km (0.095 R)
• M2: 631,004 km (0.115 R)
• M3: 1,152,502 km (0.089 R)
• M4: 1,599,500 km (0.039 R)
• M5: 2,132,069 km (0.11 R)
• M6: 2,655,063 km (0.077 R)
• M7: 4,149,546 km (0.086 R)
• M8: 5,331,967 km (0.095 R)
• M9: 6,491,351 km (0.11 R)
• M10: 7,019,581 km (0.072 R)
• M11: 7,576,235 km (0.119 R)
• M12: 8,551,014 km (0.092 R)
• M13: 9,638,292 km (0.097 R)
• M14: 10,104,439 km (0.05 R)
• M15: 11,116,019 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478

Radius: 9

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.45 AU - 1.93 AU

Year: 1490 Days

Day: 12.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,243,378 km

• M1: 112,198 km (0.11 R)
• M2: 394,639 km (0.084 R)
• M3: 814,112 km (0.063 R)
• M4: 1,454,091 km (0.106 R)
• M5: 1,747,752 km (0.088 R)
• M6: 3,393,029 km (0.028 R)
• M7: 4,641,723 km (0.051 R)
• M8: 5,838,356 km (0.056 R)
• M9: 6,379,751 km (0.061 R)
• M10: 6,905,139 km (0.101 R)
• M11: 7,381,907 km (0.106 R)
• M12: 7,826,811 km (0.099 R)
• M13: 8,655,733 km (0.119 R)
• M14: 10,454,946 km (0.109 R)
• M15: 11,914,274 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.7

Radius: 12.1

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.44 AU - 2.92 AU

Year: 2976 Days

Day: 9.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,243,378 km

• M1: 150,645 km (0.083 R)
• M2: 646,113 km (0.109 R)
• M3: 1,104,182 km (0.11 R)
• M4: 1,560,455 km (0.093 R)
• M5: 2,013,139 km (0.092 R)
• M6: 2,966,675 km (0.099 R)
• M7: 4,200,110 km (0.086 R)
• M8: 6,239,129 km (0.095 R)
• M9: 7,148,085 km (0.071 R)
• M10: 10,408,122 km (0.047 R)
• M11: 13,390,655 km (0.077 R)
• M12: 16,846,815 km (0.034 R)
• M13: 17,513,124 km (0.104 R)
• M14: 18,196,935 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.3

Radius: 13.7

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.99 AU - 6.15 AU

Year: 7743 Days

Day: 11.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,243,378 km

• M1: 173,833 km (0.083 R)
• M2: 621,579 km (0.048 R)
• M3: 1,371,812 km (0.102 R)
• M4: 2,463,727 km (0.087 R)
• M5: 3,413,524 km (0.088 R)
• M6: 6,504,815 km (0.034 R)
• M7: 7,000,881 km (0.085 R)
• M8: 7,446,234 km (0.114 R)
• M9: 11,215,951 km (0.062 R)
• M10: 12,354,241 km (0.078 R)
• M11: 14,619,153 km (0.105 R)
• M12: 18,237,925 km (0.093 R)
• M13: 24,134,325 km (0.089 R)
• M14: 28,204,135 km (0.094 R)
• M15: 28,955,715 km (0.09 R)
• M16: 31,091,973 km (0.075 R)
• M17: 33,123,512 km (0.109 R)
• M18: 34,704,013 km (0.054 R)
• M19: 35,133,958 km (0.109 R)
• M20: 36,334,480 km (0.066 R)
• M21: 37,449,433 km (0.093 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: 253 - 19,082 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit