🌌 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: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.2

Radius: 11.1

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.58 AU - 0.86 AU

Year: 414 Days

Day: 11.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,240,450 km

• M1: 138,079 km (0.103 R)
• M2: 483,500 km (0.072 R)
• M3: 868,416 km (0.053 R)
• M4: 1,272,180 km (0.07 R)
• M5: 1,631,664 km (0.106 R)
• M6: 2,143,737 km (0.071 R)
• M7: 3,168,184 km (0.102 R)
• M8: 4,067,566 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.9

Radius: 9.6

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.76 AU - 0.82 AU

Year: 476 Days

Day: 5.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,240,450 km

• M1: 119,379 km (0.115 R)
• M2: 516,861 km (0.066 R)
• M3: 920,027 km (0.103 R)
• M4: 1,228,647 km (0.047 R)
• M5: 1,531,433 km (0.114 R)
• M6: 2,229,607 km (0.103 R)
• M7: 3,059,576 km (0.045 R)
• M8: 3,613,985 km (0.116 R)
• M9: 4,055,598 km (0.103 R)
• M10: 4,518,604 km (0.093 R)
• M11: 5,063,439 km (0.072 R)
• M12: 5,368,469 km (0.082 R)
• M13: 5,719,725 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.2

Radius: 10.7

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.86 AU - 1.08 AU

Year: 648 Days

Day: 8.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,240,450 km

• M1: 133,142 km (0.095 R)
• M2: 561,740 km (0.111 R)
• M3: 1,022,501 km (0.098 R)
• M4: 1,747,602 km (0.083 R)
• M5: 2,147,477 km (0.042 R)
• M6: 3,639,866 km (0.08 R)
• M7: 4,284,782 km (0.11 R)
• M8: 5,200,321 km (0.101 R)
• M9: 5,695,789 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.7

Radius: 9.3

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.01 AU - 1.67 AU

Year: 1052 Days

Day: 11.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,240,450 km

• M1: 115,639 km (0.116 R)
• M2: 545,284 km (0.106 R)
• M3: 1,144,723 km (0.07 R)
• M4: 1,606,382 km (0.064 R)
• M5: 1,959,283 km (0.119 R)
• M6: 2,615,420 km (0.114 R)
• M7: 3,600,671 km (0.047 R)
• M8: 3,948,935 km (0.06 R)
• M9: 5,239,516 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.2

Radius: 11.7

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.25 AU - 1.53 AU

Year: 1112 Days

Day: 7.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,240,450 km

• M1: 145,559 km (0.051 R)
• M2: 522,695 km (0.113 R)
• M3: 911,500 km (0.104 R)
• M4: 1,446,611 km (0.081 R)
• M5: 2,432,312 km (0.119 R)
• M6: 2,912,371 km (0.059 R)
• M7: 3,403,202 km (0.1 R)
• M8: 3,863,515 km (0.099 R)
• M9: 4,258,303 km (0.07 R)
• M10: 4,960,217 km (0.069 R)
• M11: 5,756,227 km (0.09 R)
• M12: 7,204,783 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.4

Radius: 10.5

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.29 AU - 1.73 AU

Year: 1259 Days

Day: 12.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,240,450 km

• M1: 130,898 km (0.113 R)
• M2: 571,165 km (0.104 R)
• M3: 969,394 km (0.085 R)
• M4: 1,330,075 km (0.115 R)
• M5: 1,706,463 km (0.078 R)
• M6: 2,058,616 km (0.105 R)
• M7: 2,502,772 km (0.1 R)
• M8: 3,224,433 km (0.056 R)
• M9: 3,669,636 km (0.098 R)
• M10: 6,274,583 km (0.081 R)
• M11: 7,125,795 km (0.107 R)
• M12: 7,464,186 km (0.104 R)
• M13: 7,836,984 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.3

Radius: 14.3

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.79 AU - 2.53 AU

Year: 2153 Days

Day: 7.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,240,450 km

• M1: 265,387 km (0.112 R)
• M2: 744,997 km (0.107 R)
• M3: 1,197,232 km (0.044 R)
• M4: 1,898,247 km (0.044 R)
• M5: 2,542,565 km (0.071 R)
• M6: 3,296,539 km (0.062 R)
• M7: 4,038,694 km (0.108 R)
• M8: 4,523,241 km (0.042 R)
• M9: 5,933,650 km (0.066 R)
• M10: 6,810,293 km (0.108 R)
• M11: 8,955,078 km (0.111 R)
• M12: 9,785,047 km (0.079 R)
• M13: 16,031,357 km (0.091 R)
• M14: 16,789,369 km (0.113 R)
• M15: 17,997,970 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501

Radius: 10.4

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.91 AU - 5.85 AU

Year: 8464 Days

Day: 6.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,240,450 km

• M1: 129,402 km (0.068 R)
• M2: 456,274 km (0.118 R)
• M3: 1,002,306 km (0.1 R)
• M4: 1,391,260 km (0.048 R)
• M5: 1,866,981 km (0.083 R)
• M6: 2,842,360 km (0.096 R)
• M7: 3,662,305 km (0.049 R)
• M8: 4,914,589 km (0.094 R)
• M9: 5,734,086 km (0.089 R)
• M10: 6,261,269 km (0.109 R)
• M11: 7,186,831 km (0.085 R)
• M12: 8,323,925 km (0.084 R)
• M13: 10,415,602 km (0.057 R)
• M14: 12,132,387 km (0.074 R)
• M15: 15,296,831 km (0.026 R)
• M16: 15,798,882 km (0.106 R)
• M17: 18,617,305 km (0.111 R)
• M18: 19,995,999 km (0.107 R)
• M19: 23,119,304 km (0.082 R)
• M20: 23,697,500 km (0.119 R)
• M21: 24,796,745 km (0.12 R)
• M22: 25,228,484 km (0.081 R)
• M23: 26,553,921 km (0.055 R)
• M24: 31,710,709 km (0.118 R)
• M25: 33,044,973 km (0.063 R)
• M26: 35,170,160 km (0.08 R)
• M27: 35,605,939 km (0.113 R)
• M28: 37,047,015 km (0.081 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.1

Radius: 8.1

Gravity: 7.73 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 5.03 AU - 6.13 AU

Year: 8940 Days

Day: 7.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,240,450 km

• M1: 103,671 km (0.026 R)
• M2: 908,508 km (0.107 R)
• M3: 1,228,498 km (0.112 R)
• M4: 2,708,469 km (0.029 R)
• M5: 3,450,475 km (0.051 R)
• M6: 4,939,722 km (0.06 R)
• M7: 5,239,516 km (0.079 R)
• M8: 6,852,031 km (0.061 R)
• M9: 7,534,347 km (0.11 R)
• M10: 8,857,840 km (0.081 R)
• M11: 12,610,951 km (0.118 R)
• M12: 14,467,161 km (0.064 R)
• M13: 15,333,931 km (0.088 R)
• M14: 15,909,135 km (0.068 R)
• M15: 17,930,651 km (0.1 R)
• M16: 18,425,820 km (0.046 R)
• M17: 22,232,488 km (0.03 R)
• M18: 24,664,650 km (0.105 R)
• M19: 26,260,410 km (0.083 R)
• M20: 38,578,000 km (0.105 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 249 - 15,207 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit