🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559

Radius: 13.6

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.61 AU - 0.75 AU

Year: 362 Days

Day: 9.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,152,137 km

• M1: 169,195 km (0.116 R)
• M2: 614,997 km (0.086 R)
• M3: 1,073,664 km (0.072 R)
• M4: 2,002,816 km (0.053 R)
• M5: 2,476,294 km (0.096 R)
• M6: 3,505,826 km (0.111 R)
• M7: 4,138,176 km (0.113 R)
• M8: 4,706,199 km (0.034 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.1

Radius: 10.5

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.8 AU - 0.98 AU

Year: 542 Days

Day: 12.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,152,137 km

• M1: 130,599 km (0.116 R)
• M2: 472,580 km (0.096 R)
• M3: 993,479 km (0.058 R)
• M4: 1,486,704 km (0.08 R)
• M5: 2,218,237 km (0.079 R)
• M6: 2,679,896 km (0.096 R)
• M7: 3,215,606 km (0.107 R)
• M8: 3,763,284 km (0.111 R)
• M9: 4,233,021 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.2

Radius: 9.4

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.17 AU - 1.65 AU

Year: 1081 Days

Day: 10.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 39,152,137 km

• M1: 116,836 km (0.046 R)
• M2: 448,345 km (0.108 R)
• M3: 877,691 km (0.072 R)
• M4: 1,290,880 km (0.083 R)
• M5: 1,940,434 km (0.087 R)
• M6: 2,328,341 km (0.077 R)
• M7: 2,627,986 km (0.095 R)
• M8: 3,364,755 km (0.056 R)
• M9: 3,670,533 km (0.032 R)
• M10: 4,011,467 km (0.098 R)
• M11: 4,645,762 km (0.078 R)
• M12: 5,045,637 km (0.105 R)
• M13: 6,736,542 km (0.073 R)
• M14: 8,136,179 km (0.05 R)
• M15: 8,947,897 km (0.079 R)
• M16: 9,328,774 km (0.1 R)
• M17: 9,812,424 km (0.113 R)
• M18: 10,764,464 km (0.093 R)
• M19: 11,095,076 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138

Radius: 13.3

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.45 AU - 1.79 AU

Year: 1331 Days

Day: 8.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,152,137 km

• M1: 165,754 km (0.066 R)
• M2: 620,233 km (0.078 R)
• M3: 1,104,182 km (0.027 R)
• M4: 1,719,927 km (0.069 R)
• M5: 2,377,559 km (0.075 R)
• M6: 3,020,381 km (0.038 R)
• M7: 3,603,065 km (0.109 R)
• M8: 5,062,093 km (0.096 R)
• M9: 5,981,222 km (0.117 R)
• M10: 6,680,891 km (0.115 R)
• M11: 7,155,865 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.5

Radius: 14.4

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.3 AU - 1.98 AU

Year: 1356 Days

Day: 7.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,152,137 km

• M1: 179,517 km (0.074 R)
• M2: 640,279 km (0.119 R)
• M3: 1,147,416 km (0.087 R)
• M4: 2,561,415 km (0.107 R)
• M5: 4,778,006 km (0.116 R)
• M6: 5,781,359 km (0.109 R)
• M7: 6,333,525 km (0.079 R)
• M8: 7,358,570 km (0.053 R)
• M9: 8,755,515 km (0.108 R)
• M10: 9,330,419 km (0.071 R)
• M11: 10,999,483 km (0.06 R)
• M12: 11,455,158 km (0.066 R)
• M13: 12,106,956 km (0.104 R)
• M14: 13,053,162 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.6

Radius: 14.2

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.75 AU - 1.81 AU

Year: 1533 Days

Day: 6.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 39,152,137 km

• M1: 176,675 km (0.059 R)
• M2: 929,003 km (0.094 R)
• M3: 2,411,218 km (0.048 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.4

Radius: 9.3

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.16 AU - 3.34 AU

Year: 3783 Days

Day: 8 Hours

Environment

Temp: -206 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,152,137 km

• M1: 115,938 km (0.106 R)
• M2: 426,354 km (0.104 R)
• M3: 793,766 km (0.08 R)
• M4: 1,850,675 km (0.045 R)
• M5: 3,170,727 km (0.106 R)
• M6: 4,510,974 km (0.11 R)
• M7: 5,056,857 km (0.095 R)
• M8: 5,619,644 km (0.117 R)
• M9: 6,054,675 km (0.092 R)
• M10: 6,541,316 km (0.111 R)
• M11: 7,496,050 km (0.058 R)
• M12: 8,159,517 km (0.079 R)
• M13: 9,264,746 km (0.095 R)
• M14: 14,442,478 km (0.114 R)
• M15: 15,786,465 km (0.073 R)
• M16: 20,570,156 km (0.098 R)
• M17: 21,802,394 km (0.113 R)
• M18: 22,134,651 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.2

Radius: 9

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.12 AU - 4.56 AU

Year: 5838 Days

Day: 14.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,152,137 km

• M1: 112,348 km (0.111 R)
• M2: 1,165,966 km (0.059 R)
• M3: 1,524,552 km (0.12 R)
• M4: 2,349,584 km (0.064 R)
• M5: 2,813,786 km (0.102 R)
• M6: 4,071,007 km (0.071 R)
• M7: 4,742,552 km (0.061 R)
• M8: 5,278,411 km (0.075 R)
• M9: 6,076,666 km (0.091 R)
• M10: 7,239,340 km (0.107 R)
• M11: 8,223,694 km (0.108 R)
• M12: 8,543,834 km (0.078 R)
• M13: 10,409,917 km (0.083 R)
• M14: 10,737,537 km (0.118 R)
• M15: 12,850,158 km (0.107 R)
• M16: 17,287,081 km (0.107 R)
• M17: 18,215,336 km (0.081 R)
• M18: 19,106,640 km (0.052 R)
• M19: 20,315,690 km (0.085 R)
• M20: 28,296,886 km (0.11 R)
• M21: 28,936,118 km (0.067 R)
• M22: 34,607,523 km (0.093 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.4

Radius: 11.3

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.82 AU - 7.04 AU

Year: 9324 Days

Day: 13.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,152,137 km

• M1: 140,472 km (0.056 R)
• M2: 496,665 km (0.085 R)
• M3: 1,383,182 km (0.106 R)
• M4: 2,053,231 km (0.114 R)
• M5: 3,072,291 km (0.053 R)
• M6: 3,486,378 km (0.102 R)
• M7: 4,037,647 km (0.098 R)
• M8: 4,563,633 km (0.108 R)
• M9: 5,016,914 km (0.06 R)
• M10: 9,483,159 km (0.091 R)
• M11: 9,895,301 km (0.11 R)
• M12: 12,085,114 km (0.039 R)
• M13: 12,734,668 km (0.116 R)
• M14: 13,636,594 km (0.114 R)
• M15: 17,812,170 km (0.088 R)
• M16: 20,264,677 km (0.114 R)
• M17: 26,096,451 km (0.091 R)
• M18: 31,722,677 km (0.098 R)
• M19: 35,197,686 km (0.09 R)
• M20: 36,076,723 km (0.056 R)
• M21: 36,633,527 km (0.112 R)
• M22: 39,152,156 km (0.08 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 254 - 12,284 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit