🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.6

Radius: 12.7

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.57 AU - 0.81 AU

Year: 396 Days

Day: 11.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 94,148,363 km

• M1: 157,975 km (0.034 R)
• M2: 761,453 km (0.116 R)
• M3: 1,187,059 km (0.104 R)
• M4: 1,590,525 km (0.073 R)
• M5: 3,151,429 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.8

Radius: 11.4

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.76 AU - 0.9 AU

Year: 522 Days

Day: 6.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 94,148,363 km

• M1: 141,819 km (0.118 R)
• M2: 558,299 km (0.117 R)
• M3: 1,050,327 km (0.115 R)
• M4: 1,649,616 km (0.045 R)
• M5: 2,388,480 km (0.111 R)
• M6: 3,142,752 km (0.119 R)
• M7: 3,576,137 km (0.074 R)
• M8: 4,412,688 km (0.032 R)
• M9: 4,813,760 km (0.096 R)
• M10: 6,375,712 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.8

Radius: 10.9

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.92 AU - 1.38 AU

Year: 851 Days

Day: 7.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 94,148,363 km

• M1: 135,835 km (0.073 R)
• M2: 499,358 km (0.059 R)
• M3: 1,097,151 km (0.073 R)
• M4: 1,515,277 km (0.074 R)
• M5: 2,011,343 km (0.092 R)
• M6: 2,848,343 km (0.095 R)
• M7: 3,568,059 km (0.094 R)
• M8: 4,102,123 km (0.117 R)
• M9: 4,487,188 km (0.107 R)
• M10: 5,183,267 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.7

Radius: 10

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.62 AU - 3.88 AU

Year: 5013 Days

Day: 9.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 94,148,363 km

• M1: 124,316 km (0.078 R)
• M2: 786,586 km (0.105 R)
• M3: 1,631,664 km (0.1 R)
• M4: 2,045,302 km (0.094 R)
• M5: 2,689,321 km (0.113 R)
• M6: 3,786,920 km (0.096 R)
• M7: 4,542,390 km (0.089 R)
• M8: 5,556,514 km (0.085 R)
• M9: 6,839,016 km (0.069 R)
• M10: 7,854,487 km (0.029 R)
• M11: 8,524,685 km (0.11 R)
• M12: 9,503,205 km (0.106 R)
• M13: 10,512,990 km (0.114 R)
• M14: 13,620,737 km (0.102 R)
• M15: 15,985,131 km (0.111 R)
• M16: 17,176,977 km (0.093 R)
• M17: 18,857,111 km (0.115 R)
• M18: 20,382,111 km (0.077 R)
• M19: 21,443,508 km (0.114 R)
• M20: 23,965,579 km (0.111 R)
• M21: 24,848,506 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.8

Radius: 10.6

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.8 AU - 4.9 AU

Year: 6262 Days

Day: 6.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 94,148,363 km

• M1: 135,087 km (0.04 R)
• M2: 501,602 km (0.064 R)
• M3: 968,945 km (0.035 R)
• M4: 2,335,672 km (0.09 R)
• M5: 2,789,701 km (0.067 R)
• M6: 3,639,118 km (0.106 R)
• M7: 4,707,995 km (0.089 R)
• M8: 6,040,014 km (0.074 R)
• M9: 7,119,213 km (0.101 R)
• M10: 8,695,825 km (0.092 R)
• M11: 10,350,527 km (0.041 R)
• M12: 14,450,406 km (0.042 R)
• M13: 15,297,280 km (0.115 R)
• M14: 16,434,224 km (0.066 R)
• M15: 18,663,531 km (0.107 R)
• M16: 26,284,495 km (0.051 R)
• M17: 33,200,854 km (0.077 R)
• M18: 35,102,093 km (0.092 R)
• M19: 35,751,797 km (0.086 R)
• M20: 36,852,239 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.4

Radius: 10

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.6 AU - 5.9 AU

Year: 7146 Days

Day: 10.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 94,148,363 km

• M1: 140,472 km (0.043 R)
• M2: 568,921 km (0.096 R)
• M3: 1,212,341 km (0.089 R)
• M4: 1,618,350 km (0.056 R)
• M5: 2,340,010 km (0.106 R)
• M6: 3,657,967 km (0.101 R)
• M7: 5,152,001 km (0.085 R)
• M8: 5,658,390 km (0.096 R)
• M9: 11,871,638 km (0.06 R)
• M10: 12,597,038 km (0.116 R)
• M11: 14,539,716 km (0.041 R)
• M12: 15,309,696 km (0.05 R)
• M13: 16,420,461 km (0.053 R)
• M14: 17,255,366 km (0.116 R)
• M15: 20,658,568 km (0.112 R)
• M16: 22,949,510 km (0.108 R)
• M17: 26,871,069 km (0.104 R)
• M18: 31,315,322 km (0.095 R)
• M19: 34,225,150 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 491.4

Radius: 6.6

Gravity: 11.28 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 4.87 AU - 6.33 AU

Year: 9147 Days

Day: 19.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 94,148,363 km

• M1: 82,279 km (0.077 R)
• M2: 1,107,473 km (0.11 R)
• M3: 1,416,692 km (0.088 R)
• M4: 2,531,346 km (0.073 R)
• M5: 2,822,613 km (0.107 R)
• M6: 4,009,821 km (0.028 R)
• M7: 4,771,574 km (0.118 R)
• M8: 5,005,994 km (0.11 R)
• M9: 6,506,909 km (0.074 R)
• M10: 11,473,409 km (0.106 R)
• M11: 11,682,995 km (0.109 R)
• M12: 12,382,066 km (0.039 R)
• M13: 12,769,973 km (0.064 R)
• M14: 12,995,118 km (0.062 R)
• M15: 14,161,383 km (0.085 R)
• M16: 14,585,493 km (0.078 R)
• M17: 16,499,897 km (0.087 R)
• M18: 16,834,548 km (0.033 R)
• M19: 18,503,910 km (0.064 R)
• M20: 20,433,723 km (0.106 R)
• M21: 23,154,609 km (0.034 R)
• M22: 23,743,276 km (0.117 R)
• M23: 24,084,210 km (0.072 R)
• M24: 27,207,365 km (0.044 R)
• M25: 29,498,456 km (0.108 R)
• M26: 29,892,347 km (0.114 R)
• M27: 30,289,829 km (0.105 R)
• M28: 32,122,253 km (0.1 R)
• M29: 38,177,077 km (0.107 R)
• M30: 39,473,044 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 994.1

Radius: 8

Gravity: 15.53 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 10.1 AU - 10.52 AU

Year: 22851 Days

Day: 20.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 94,148,363 km

• M1: 99,632 km (0.093 R)
• M2: 392,246 km (0.073 R)
• M3: 647,908 km (0.1 R)
• M4: 995,574 km (0.085 R)
• M5: 1,383,481 km (0.119 R)
• M6: 2,164,083 km (0.097 R)
• M7: 3,828,658 km (0.058 R)
• M8: 5,721,371 km (0.106 R)
• M9: 6,301,062 km (0.051 R)
• M10: 9,253,825 km (0.115 R)
• M11: 11,575,734 km (0.03 R)
• M12: 13,476,674 km (0.066 R)
• M13: 14,663,284 km (0.065 R)
• M14: 15,918,261 km (0.058 R)
• M15: 16,704,547 km (0.098 R)
• M16: 17,062,385 km (0.029 R)
• M17: 17,793,171 km (0.093 R)
• M18: 18,544,601 km (0.119 R)
• M19: 18,928,170 km (0.06 R)
• M20: 20,413,976 km (0.119 R)
• M21: 26,407,465 km (0.057 R)
• M22: 29,152,735 km (0.086 R)
• M23: 32,914,374 km (0.079 R)
• M24: 33,335,791 km (0.03 R)
• M25: 35,496,433 km (0.092 R)
• M26: 39,302,203 km (0.096 R)
• M27: 43,877,803 km (0.086 R)
• M28: 47,892,262 km (0.107 R)
• M29: 51,199,871 km (0.08 R)
• M30: 58,061,327 km (0.11 R)
• M31: 67,298,996 km (0.113 R)
• M32: 84,877,793 km (0.09 R)
• M33: 90,253,293 km (0.048 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 367 - 13,539 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit