🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.3

Radius: 8.5

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.45 AU - 0.61 AU

Year: 266 Days

Day: 8.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,260,652 km

• M1: 105,915 km (0.118 R)
• M2: 378,782 km (0.092 R)
• M3: 677,529 km (0.091 R)
• M4: 1,043,595 km (0.108 R)
• M5: 1,328,878 km (0.075 R)
• M6: 1,615,208 km (0.099 R)
• M7: 2,266,109 km (0.112 R)
• M8: 2,562,612 km (0.103 R)
• M9: 2,991,957 km (0.052 R)
• M10: 3,360,866 km (0.118 R)
• M11: 3,817,738 km (0.116 R)
• M12: 4,227,636 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.3

Radius: 10.6

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.52 AU - 0.6 AU

Year: 289 Days

Day: 11.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 45,260,652 km

• M1: 131,796 km (0.106 R)
• M2: 753,524 km (0.1 R)
• M3: 1,096,253 km (0.116 R)
• M4: 1,669,512 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.8

Radius: 14.1

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.35 AU - 1.71 AU

Year: 1306 Days

Day: 11.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,260,652 km

• M1: 175,329 km (0.114 R)
• M2: 679,922 km (0.108 R)
• M3: 1,118,693 km (0.091 R)
• M4: 1,776,924 km (0.115 R)
• M5: 2,950,968 km (0.117 R)
• M6: 3,887,899 km (0.079 R)
• M7: 4,372,297 km (0.091 R)
• M8: 4,877,788 km (0.107 R)
• M9: 6,633,768 km (0.061 R)
• M10: 7,381,159 km (0.053 R)
• M11: 8,635,836 km (0.105 R)
• M12: 11,149,978 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.4

Radius: 9.9

Gravity: 7.9 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.54 AU - 1.64 AU

Year: 1384 Days

Day: 8.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,260,652 km

• M1: 126,261 km (0.086 R)
• M2: 590,164 km (0.099 R)
• M3: 976,575 km (0.087 R)
• M4: 1,403,078 km (0.117 R)
• M5: 2,104,842 km (0.064 R)
• M6: 3,417,115 km (0.12 R)
• M7: 4,050,961 km (0.07 R)
• M8: 4,547,476 km (0.037 R)
• M9: 5,865,134 km (0.083 R)
• M10: 7,501,735 km (0.036 R)
• M11: 8,338,436 km (0.118 R)
• M12: 9,837,107 km (0.102 R)
• M13: 12,734,519 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.7

Radius: 12

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.97 AU - 2.03 AU

Year: 1952 Days

Day: 6.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,260,652 km

• M1: 149,897 km (0.08 R)
• M2: 554,709 km (0.078 R)
• M3: 1,279,062 km (0.081 R)
• M4: 1,818,362 km (0.112 R)
• M5: 2,610,483 km (0.039 R)
• M6: 2,998,390 km (0.066 R)
• M7: 4,478,661 km (0.1 R)
• M8: 5,229,194 km (0.115 R)
• M9: 5,691,301 km (0.109 R)
• M10: 6,204,721 km (0.086 R)
• M11: 6,672,963 km (0.058 R)
• M12: 7,597,328 km (0.1 R)
• M13: 8,249,874 km (0.091 R)
• M14: 8,725,745 km (0.083 R)
• M15: 9,251,282 km (0.092 R)
• M16: 10,062,551 km (0.042 R)
• M17: 10,780,172 km (0.113 R)
• M18: 11,458,599 km (0.084 R)
• M19: 12,279,292 km (0.096 R)
• M20: 14,164,076 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.8

Radius: 8.1

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.2 AU - 3.28 AU

Year: 4026 Days

Day: 8.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 45,260,652 km

• M1: 100,829 km (0.114 R)
• M2: 438,920 km (0.045 R)
• M3: 1,032,076 km (0.074 R)
• M4: 1,299,407 km (0.042 R)
• M5: 1,977,833 km (0.068 R)
• M6: 2,308,445 km (0.118 R)
• M7: 4,124,264 km (0.103 R)
• M8: 6,855,771 km (0.071 R)
• M9: 7,749,618 km (0.038 R)
• M10: 8,469,483 km (0.112 R)
• M11: 9,121,281 km (0.053 R)
• M12: 9,923,425 km (0.099 R)
• M13: 10,281,413 km (0.104 R)
• M14: 11,493,455 km (0.107 R)
• M15: 12,021,834 km (0.069 R)
• M16: 12,292,158 km (0.044 R)
• M17: 12,751,573 km (0.096 R)
• M18: 13,079,940 km (0.053 R)
• M19: 14,148,817 km (0.072 R)
• M20: 14,551,684 km (0.092 R)
• M21: 15,222,481 km (0.047 R)
• M22: 15,752,357 km (0.109 R)
• M23: 16,185,143 km (0.108 R)
• M24: 16,459,655 km (0.072 R)
• M25: 17,244,745 km (0.092 R)
• M26: 18,588,433 km (0.094 R)
• M27: 19,255,041 km (0.117 R)
• M28: 21,351,057 km (0.099 R)
• M29: 22,216,929 km (0.098 R)
• M30: 22,967,611 km (0.032 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 386.6

Radius: 7.3

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 5.01 AU - 7.65 AU

Year: 10993 Days

Day: 15.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,260,652 km

• M1: 90,806 km (0.102 R)
• M2: 340,485 km (0.114 R)
• M3: 2,866,894 km (0.086 R)
• M4: 3,508,668 km (0.089 R)
• M5: 4,242,446 km (0.104 R)
• M6: 5,741,566 km (0.104 R)
• M7: 6,981,433 km (0.094 R)
• M8: 7,405,543 km (0.063 R)
• M9: 11,493,604 km (0.095 R)
• M10: 14,224,364 km (0.091 R)
• M11: 14,906,231 km (0.111 R)
• M12: 16,604,017 km (0.082 R)
• M13: 18,792,185 km (0.109 R)
• M14: 19,916,862 km (0.077 R)
• M15: 22,798,416 km (0.1 R)
• M16: 26,037,809 km (0.078 R)
• M17: 27,434,305 km (0.086 R)
• M18: 30,375,548 km (0.099 R)
• M19: 41,065,962 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 196.4

Radius: 3.4

Gravity: 16.99 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 7.37 AU - 9.65 AU

Year: 17136 Days

Day: 19.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,260,652 km

• M1: 45,029 km (0.075 R)
• M2: 163,660 km (0.057 R)
• M3: 276,457 km (0.033 R)
• M4: 479,312 km (0.089 R)
• M5: 629,059 km (0.088 R)
• M6: 809,773 km (0.117 R)
• M7: 962,363 km (0.111 R)
• M8: 1,100,143 km (0.11 R)
• M9: 1,312,721 km (0.076 R)
• M10: 1,682,078 km (0.096 R)
• M11: 1,803,851 km (0.083 R)
• M12: 3,250,911 km (0.116 R)
• M13: 4,827,523 km (0.114 R)
• M14: 8,241,347 km (0.101 R)
• M15: 9,282,099 km (0.104 R)
• M16: 9,519,361 km (0.083 R)
• M17: 11,241,682 km (0.056 R)
• M18: 18,514,831 km (0.061 R)
• M19: 22,762,662 km (0.116 R)
• M20: 25,065,572 km (0.095 R)
• M21: 26,367,672 km (0.114 R)
• M22: 27,035,327 km (0.087 R)
• M23: 29,409,894 km (0.069 R)
• M24: 39,923,782 km (0.075 R)
• M25: 44,585,701 km (0.086 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: 261 - 17,750 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit