🌌 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: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818.7

Radius: 11.8

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.63 AU - 0.95 AU

Year: 461 Days

Day: 8.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,570,522 km

• M1: 146,756 km (0.097 R)
• M2: 630,405 km (0.099 R)
• M3: 1,227,301 km (0.055 R)
• M4: 1,611,468 km (0.091 R)
• M5: 2,059,963 km (0.119 R)
• M6: 2,472,554 km (0.101 R)
• M7: 2,907,584 km (0.068 R)
• M8: 3,974,666 km (0.088 R)
• M9: 5,057,754 km (0.081 R)
• M10: 5,729,598 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.3

Radius: 9.6

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.62 AU - 0.96 AU

Year: 461 Days

Day: 7.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 44,570,522 km

• M1: 119,379 km (0.115 R)
• M2: 622,028 km (0.1 R)
• M3: 933,491 km (0.095 R)
• M4: 1,365,380 km (0.087 R)
• M5: 1,769,144 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.2

Radius: 10

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.67 AU - 1.01 AU

Year: 505 Days

Day: 7.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,570,522 km

• M1: 124,316 km (0.048 R)
• M2: 490,382 km (0.097 R)
• M3: 988,842 km (0.083 R)
• M4: 1,484,011 km (0.094 R)
• M5: 2,013,887 km (0.088 R)
• M6: 2,378,606 km (0.1 R)
• M7: 2,891,727 km (0.075 R)
• M8: 4,276,854 km (0.099 R)
• M9: 5,178,779 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.2

Radius: 8.1

Gravity: 12.44 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.89 AU - 2.13 AU

Year: 1869 Days

Day: 9.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,570,522 km

• M1: 100,679 km (0.104 R)
• M2: 394,340 km (0.107 R)
• M3: 937,231 km (0.09 R)
• M4: 1,315,414 km (0.114 R)
• M5: 1,585,588 km (0.092 R)
• M6: 1,848,282 km (0.099 R)
• M7: 2,202,230 km (0.112 R)
• M8: 2,657,905 km (0.119 R)
• M9: 3,031,900 km (0.047 R)
• M10: 3,492,213 km (0.028 R)
• M11: 4,171,088 km (0.083 R)
• M12: 4,913,243 km (0.062 R)
• M13: 6,524,562 km (0.118 R)
• M14: 7,610,193 km (0.114 R)
• M15: 8,779,301 km (0.116 R)
• M16: 9,611,214 km (0.111 R)
• M17: 12,138,820 km (0.04 R)
• M18: 12,959,364 km (0.114 R)
• M19: 14,214,042 km (0.076 R)
• M20: 15,786,016 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.4

Radius: 8.4

Gravity: 10.85 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.1 AU - 2.92 AU

Year: 2609 Days

Day: 9.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,570,522 km

• M1: 104,419 km (0.107 R)
• M2: 455,526 km (0.101 R)
• M3: 830,418 km (0.104 R)
• M4: 1,152,951 km (0.117 R)
• M5: 1,436,588 km (0.081 R)
• M6: 1,813,725 km (0.091 R)
• M7: 2,255,936 km (0.087 R)
• M8: 2,599,562 km (0.113 R)
• M9: 3,374,778 km (0.114 R)
• M10: 3,806,518 km (0.095 R)
• M11: 4,826,775 km (0.074 R)
• M12: 5,755,628 km (0.102 R)
• M13: 6,400,844 km (0.116 R)
• M14: 7,551,102 km (0.048 R)
• M15: 7,867,053 km (0.053 R)
• M16: 8,191,830 km (0.06 R)
• M17: 8,661,567 km (0.103 R)
• M18: 9,327,577 km (0.118 R)
• M19: 10,920,645 km (0.071 R)
• M20: 11,572,742 km (0.091 R)
• M21: 14,060,554 km (0.116 R)
• M22: 14,832,180 km (0.11 R)
• M23: 15,328,546 km (0.053 R)
• M24: 16,354,488 km (0.069 R)
• M25: 18,485,809 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796

Radius: 13.7

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.32 AU - 5.46 AU

Year: 6034 Days

Day: 12.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,570,522 km

• M1: 170,542 km (0.085 R)
• M2: 606,171 km (0.096 R)
• M3: 1,052,870 km (0.078 R)
• M4: 1,855,313 km (0.117 R)
• M5: 4,949,146 km (0.085 R)
• M6: 6,128,875 km (0.092 R)
• M7: 8,339,483 km (0.115 R)
• M8: 8,872,051 km (0.069 R)
• M9: 9,558,706 km (0.108 R)
• M10: 11,282,971 km (0.06 R)
• M11: 13,593,659 km (0.1 R)
• M12: 15,219,040 km (0.092 R)
• M13: 15,829,848 km (0.1 R)
• M14: 17,561,144 km (0.115 R)
• M15: 19,772,799 km (0.089 R)
• M16: 21,473,278 km (0.102 R)
• M17: 23,835,279 km (0.099 R)
• M18: 24,659,713 km (0.041 R)
• M19: 26,365,727 km (0.077 R)
• M20: 27,158,596 km (0.119 R)
• M21: 28,240,488 km (0.101 R)
• M22: 29,070,457 km (0.102 R)
• M23: 31,168,118 km (0.073 R)
• M24: 31,757,234 km (0.064 R)
• M25: 32,654,971 km (0.074 R)
• M26: 35,662,786 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.7

Radius: 13.7

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.38 AU - 6.54 AU

Year: 8369 Days

Day: 5.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,570,522 km

• M1: 170,392 km (0.049 R)
• M2: 706,252 km (0.109 R)
• M3: 1,264,551 km (0.102 R)
• M4: 2,261,770 km (0.116 R)
• M5: 5,157,237 km (0.095 R)
• M6: 5,864,237 km (0.108 R)
• M7: 7,434,715 km (0.117 R)
• M8: 8,297,745 km (0.116 R)
• M9: 8,753,719 km (0.112 R)
• M10: 10,796,927 km (0.106 R)
• M11: 11,748,818 km (0.104 R)
• M12: 12,701,458 km (0.077 R)
• M13: 14,109,323 km (0.091 R)
• M14: 16,444,995 km (0.06 R)
• M15: 21,481,656 km (0.09 R)
• M16: 22,028,137 km (0.054 R)
• M17: 26,293,621 km (0.113 R)
• M18: 28,014,445 km (0.109 R)
• M19: 28,573,193 km (0.098 R)
• M20: 29,425,303 km (0.09 R)
• M21: 30,981,719 km (0.03 R)
• M22: 31,579,363 km (0.073 R)
• M23: 32,797,688 km (0.092 R)
• M24: 36,419,751 km (0.115 R)
• M25: 36,974,011 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 563.8

Radius: 3.1

Gravity: 58.67 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 6.03 AU - 6.17 AU

Year: 9883 Days

Day: 19.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,570,522 km

• M1: 38,746 km (0.117 R)
• M2: 293,960 km (0.104 R)
• M3: 427,850 km (0.087 R)
• M4: 915,090 km (0.12 R)
• M5: 1,113,457 km (0.053 R)
• M6: 2,424,682 km (0.113 R)
• M7: 2,599,712 km (0.04 R)
• M8: 3,554,445 km (0.113 R)
• M9: 4,401,469 km (0.117 R)
• M10: 5,439,678 km (0.1 R)
• M11: 6,372,570 km (0.089 R)
• M12: 6,973,056 km (0.118 R)
• M13: 7,528,662 km (0.088 R)
• M14: 9,277,761 km (0.109 R)
• M15: 9,657,440 km (0.073 R)
• M16: 10,346,638 km (0.098 R)
• M17: 13,795,168 km (0.105 R)
• M18: 14,859,407 km (0.086 R)
• M19: 15,247,613 km (0.058 R)
• M20: 18,600,999 km (0.052 R)
• M21: 20,289,810 km (0.075 R)
• M22: 27,872,178 km (0.096 R)
• M23: 30,282,499 km (0.052 R)
• M24: 32,286,362 km (0.105 R)
• M25: 36,205,976 km (0.074 R)
• M26: 37,738,905 km (0.062 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 15,416 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit