🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.2

Radius: 10.9

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.75 AU - 0.75 AU

Year: 441 Days

Day: 6.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,369,706 km

• M1: 135,536 km (0.026 R)
• M2: 476,469 km (0.056 R)
• M3: 1,097,450 km (0.038 R)
• M4: 1,800,261 km (0.081 R)
• M5: 2,211,206 km (0.062 R)
• M6: 2,711,013 km (0.101 R)
• M7: 3,156,365 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.4

Radius: 14.3

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.69 AU - 0.89 AU

Year: 476 Days

Day: 11.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,369,706 km

• M1: 178,021 km (0.101 R)
• M2: 634,744 km (0.03 R)
• M3: 1,098,796 km (0.108 R)
• M4: 1,682,976 km (0.095 R)
• M5: 2,337,467 km (0.081 R)
• M6: 2,877,216 km (0.089 R)
• M7: 3,366,700 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.5

Radius: 11.6

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.29 AU - 1.43 AU

Year: 1076 Days

Day: 8 Hours

Environment

Temp: -187 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,369,706 km

• M1: 145,559 km (0.081 R)
• M2: 549,772 km (0.099 R)
• M3: 923,168 km (0.1 R)
• M4: 1,389,764 km (0.046 R)
• M5: 1,987,857 km (0.103 R)
• M6: 3,486,528 km (0.119 R)
• M7: 4,190,236 km (0.106 R)
• M8: 5,704,017 km (0.053 R)
• M9: 6,263,214 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.1

Radius: 11.3

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.29 AU - 1.91 AU

Year: 1373 Days

Day: 13.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 59,369,706 km

• M1: 140,772 km (0.115 R)
• M2: 502,798 km (0.114 R)
• M3: 1,172,847 km (0.115 R)
• M4: 1,557,613 km (0.11 R)
• M5: 1,912,010 km (0.091 R)
• M6: 2,321,161 km (0.114 R)
• M7: 2,842,958 km (0.093 R)
• M8: 3,243,431 km (0.105 R)
• M9: 3,813,998 km (0.11 R)
• M10: 5,177,283 km (0.119 R)
• M11: 6,004,410 km (0.12 R)
• M12: 7,407,339 km (0.093 R)
• M13: 8,256,606 km (0.11 R)
• M14: 9,478,072 km (0.113 R)
• M15: 10,050,883 km (0.086 R)
• M16: 10,579,262 km (0.101 R)
• M17: 11,300,922 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.1

Radius: 10.1

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.62 AU - 1.66 AU

Year: 1424 Days

Day: 9.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,369,706 km

• M1: 125,662 km (0.104 R)
• M2: 485,894 km (0.098 R)
• M3: 927,507 km (0.06 R)
• M4: 1,327,532 km (0.08 R)
• M5: 1,706,313 km (0.114 R)
• M6: 2,176,948 km (0.049 R)
• M7: 2,519,228 km (0.095 R)
• M8: 4,912,495 km (0.098 R)
• M9: 6,394,860 km (0.118 R)
• M10: 7,443,691 km (0.096 R)
• M11: 8,477,412 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.6

Radius: 13.7

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.35 AU - 3.13 AU

Year: 3076 Days

Day: 10.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 168.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,369,706 km

• M1: 170,392 km (0.042 R)
• M2: 670,198 km (0.077 R)
• M3: 1,285,943 km (0.12 R)
• M4: 1,732,643 km (0.065 R)
• M5: 2,627,537 km (0.1 R)
• M6: 4,190,685 km (0.089 R)
• M7: 5,000,309 km (0.08 R)
• M8: 6,022,810 km (0.105 R)
• M9: 6,658,601 km (0.101 R)
• M10: 7,243,379 km (0.089 R)
• M11: 8,306,123 km (0.053 R)
• M12: 9,169,302 km (0.086 R)
• M13: 10,534,682 km (0.068 R)
• M14: 13,910,807 km (0.079 R)
• M15: 14,409,865 km (0.101 R)
• M16: 15,076,473 km (0.097 R)
• M17: 15,763,576 km (0.12 R)
• M18: 18,843,497 km (0.039 R)
• M19: 20,269,763 km (0.053 R)
• M20: 20,911,838 km (0.078 R)
• M21: 21,633,797 km (0.067 R)
• M22: 22,713,594 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115

Radius: 8.9

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.12 AU - 3.44 AU

Year: 3144 Days

Day: 7.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 59,369,706 km

• M1: 111,750 km (0.089 R)
• M2: 492,925 km (0.114 R)
• M3: 863,030 km (0.058 R)
• M4: 1,433,896 km (0.07 R)
• M5: 1,746,256 km (0.116 R)
• M6: 2,261,172 km (0.103 R)
• M7: 3,111,187 km (0.082 R)
• M8: 4,428,546 km (0.105 R)
• M9: 5,221,714 km (0.047 R)
• M10: 5,555,915 km (0.098 R)
• M11: 5,882,039 km (0.09 R)
• M12: 6,221,027 km (0.104 R)
• M13: 6,644,988 km (0.079 R)
• M14: 7,088,097 km (0.048 R)
• M15: 9,300,500 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 144.9

Radius: 5.1

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 7.19 AU - 11.57 AU

Year: 19485 Days

Day: 23 Hours

Environment

Temp: -230 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 59,369,706 km

• M1: 88,861 km (0.109 R)
• M2: 293,810 km (0.12 R)
• M3: 481,406 km (0.033 R)
• M4: 725,699 km (0.117 R)
• M5: 939,175 km (0.114 R)
• M6: 1,240,765 km (0.086 R)
• M7: 2,372,323 km (0.106 R)
• M8: 2,602,405 km (0.082 R)
• M9: 4,422,263 km (0.103 R)
• M10: 6,391,719 km (0.093 R)
• M11: 6,687,025 km (0.042 R)
• M12: 7,710,573 km (0.082 R)
• M13: 9,915,646 km (0.085 R)
• M14: 11,946,437 km (0.105 R)
• M15: 12,971,033 km (0.075 R)
• M16: 20,853,494 km (0.061 R)
• M17: 21,585,327 km (0.091 R)
• M18: 23,532,942 km (0.031 R)
• M19: 27,773,892 km (0.119 R)
• M20: 28,263,526 km (0.078 R)
• M21: 31,428,119 km (0.066 R)
• M22: 38,329,368 km (0.102 R)
• M23: 41,046,963 km (0.062 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 288.1

Radius: 3

Gravity: 32.01 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 9.5 AU - 10.38 AU

Year: 21255 Days

Day: 20.2 Hours

Environment

Temp: -242 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,369,706 km

• M1: 47,722 km (0.075 R)
• M2: 344,524 km (0.089 R)
• M3: 867,817 km (0.088 R)
• M4: 1,257,819 km (0.111 R)
• M5: 1,560,455 km (0.079 R)
• M6: 2,055,325 km (0.1 R)
• M7: 2,782,520 km (0.058 R)
• M8: 6,316,022 km (0.106 R)
• M9: 8,188,838 km (0.108 R)
• M10: 16,331,450 km (0.03 R)
• M11: 18,284,749 km (0.053 R)
• M12: 24,373,831 km (0.093 R)
• M13: 24,768,919 km (0.093 R)
• M14: 25,673,687 km (0.067 R)
• M15: 25,775,564 km (0.103 R)
• M16: 29,849,413 km (0.085 R)
• M17: 30,988,601 km (0.111 R)
• M18: 31,452,354 km (0.102 R)
• M19: 32,631,784 km (0.054 R)
• M20: 47,148,611 km (0.11 R)
• M21: 48,847,445 km (0.093 R)
• M22: 51,229,342 km (0.091 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: 172 - 10,666 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit