🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.71 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.6

Radius: 10.9

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.18 AU - 1.64 AU

Year: 1065 Days

Day: 11.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,953,797 km

• M1: 135,685 km (0.098 R)
• M2: 532,868 km (0.074 R)
• M3: 950,994 km (0.079 R)
• M4: 1,415,794 km (0.104 R)
• M5: 1,829,732 km (0.111 R)
• M6: 2,500,828 km (0.063 R)
• M7: 2,948,125 km (0.096 R)
• M8: 3,509,117 km (0.119 R)
• M9: 5,058,203 km (0.068 R)
• M10: 5,864,536 km (0.08 R)
• M11: 7,219,444 km (0.102 R)
• M12: 7,943,647 km (0.087 R)
• M13: 8,715,572 km (0.11 R)
• M14: 9,658,338 km (0.118 R)
• M15: 10,409,020 km (0.09 R)
• M16: 10,930,668 km (0.108 R)
• M17: 11,435,560 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.8

Radius: 10.6

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.54 AU - 1.66 AU

Year: 1287 Days

Day: 8.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,953,797 km

• M1: 131,945 km (0.083 R)
• M2: 574,905 km (0.048 R)
• M3: 974,181 km (0.026 R)
• M4: 2,078,214 km (0.08 R)
• M5: 2,519,677 km (0.088 R)
• M6: 3,552,201 km (0.085 R)
• M7: 6,349,532 km (0.108 R)
• M8: 7,717,904 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.2

Radius: 10.9

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.33 AU - 1.93 AU

Year: 1323 Days

Day: 14.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,953,797 km

• M1: 135,536 km (0.096 R)
• M2: 801,097 km (0.051 R)
• M3: 1,200,224 km (0.11 R)
• M4: 1,778,868 km (0.103 R)
• M5: 3,253,754 km (0.071 R)
• M6: 3,783,031 km (0.096 R)
• M7: 4,150,593 km (0.077 R)
• M8: 4,524,737 km (0.034 R)
• M9: 5,128,215 km (0.084 R)
• M10: 5,805,445 km (0.102 R)
• M11: 6,187,667 km (0.03 R)
• M12: 6,609,234 km (0.079 R)
• M13: 8,599,185 km (0.094 R)
• M14: 9,672,400 km (0.117 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 701.7

Radius: 5.1

Gravity: 26.98 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 5.24 AU - 7.64 AU

Year: 10391 Days

Day: 18.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,953,797 km

• M1: 63,579 km (0.091 R)
• M2: 227,239 km (0.104 R)
• M3: 447,746 km (0.103 R)
• M4: 681,568 km (0.097 R)
• M5: 1,538,315 km (0.114 R)
• M6: 1,700,928 km (0.087 R)
• M7: 2,910,726 km (0.114 R)
• M8: 3,114,628 km (0.088 R)
• M9: 4,757,661 km (0.111 R)
• M10: 6,177,943 km (0.094 R)
• M11: 14,426,471 km (0.063 R)
• M12: 14,953,504 km (0.099 R)
• M13: 15,976,155 km (0.078 R)
• M14: 19,882,155 km (0.084 R)
• M15: 25,889,557 km (0.11 R)
• M16: 26,864,038 km (0.118 R)
• M17: 32,328,249 km (0.11 R)
• M18: 34,613,058 km (0.087 R)
• M19: 36,395,666 km (0.053 R)
• M20: 39,628,925 km (0.089 R)
• M21: 41,976,115 km (0.084 R)
• M22: 42,913,496 km (0.094 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 304.1

Radius: 7.9

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 6.07 AU - 8.53 AU

Year: 12541 Days

Day: 23.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,953,797 km

• M1: 169,794 km (0.04 R)
• M2: 474,524 km (0.108 R)
• M3: 1,609,075 km (0.082 R)
• M4: 4,120,823 km (0.092 R)
• M5: 5,119,987 km (0.083 R)
• M6: 5,692,797 km (0.099 R)
• M7: 9,079,843 km (0.107 R)
• M8: 11,219,541 km (0.057 R)
• M9: 11,965,436 km (0.093 R)
• M10: 16,534,305 km (0.07 R)
• M11: 17,429,349 km (0.112 R)
• M12: 19,541,970 km (0.04 R)
• M13: 30,208,298 km (0.119 R)
• M14: 30,717,380 km (0.065 R)
• M15: 31,962,782 km (0.118 R)
• M16: 41,889,498 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 504.3

Radius: 5.7

Gravity: 15.52 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 7.04 AU - 9.4 AU

Year: 14984 Days

Day: 22.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 33,953,797 km

• M1: 70,909 km (0.119 R)
• M2: 412,142 km (0.051 R)
• M3: 665,411 km (0.117 R)
• M4: 843,582 km (0.113 R)
• M5: 1,273,975 km (0.059 R)
• M6: 1,773,632 km (0.052 R)
• M7: 2,014,036 km (0.082 R)
• M8: 3,351,740 km (0.105 R)
• M9: 4,794,761 km (0.1 R)
• M10: 5,762,211 km (0.068 R)
• M11: 6,568,543 km (0.09 R)
• M12: 9,183,514 km (0.044 R)
• M13: 9,488,395 km (0.068 R)
• M14: 10,608,883 km (0.06 R)
• M15: 11,519,784 km (0.098 R)
• M16: 12,420,064 km (0.027 R)
• M17: 12,918,973 km (0.077 R)
• M18: 15,118,959 km (0.119 R)
• M19: 15,401,550 km (0.066 R)
• M20: 17,402,122 km (0.095 R)
• M21: 19,237,688 km (0.068 R)
• M22: 19,989,716 km (0.11 R)
• M23: 23,008,302 km (0.107 R)
• M24: 25,214,272 km (0.116 R)
• M25: 28,619,718 km (0.072 R)
• M26: 30,939,383 km (0.112 R)
• M27: 36,452,513 km (0.088 R)
• M28: 39,840,905 km (0.089 R)
• M29: 40,244,819 km (0.051 R)
• M30: 48,602,104 km (0.097 R)
• M31: 49,217,699 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.6

Radius: 8

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 8.77 AU - 14.23 AU

Year: 24796 Days

Day: 25 Hours

Environment

Temp: -226 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,953,797 km

• M1: 110,553 km (0.086 R)
• M2: 399,726 km (0.086 R)
• M3: 788,231 km (0.097 R)
• M4: 1,418,337 km (0.078 R)
• M5: 1,759,271 km (0.071 R)
• M6: 3,143,500 km (0.119 R)
• M7: 3,569,704 km (0.091 R)
• M8: 4,669,997 km (0.083 R)
• M9: 5,082,737 km (0.113 R)
• M10: 5,670,806 km (0.08 R)
• M11: 7,633,531 km (0.11 R)
• M12: 9,965,761 km (0.08 R)
• M13: 10,933,360 km (0.058 R)
• M14: 11,220,887 km (0.061 R)
• M15: 17,432,939 km (0.091 R)
• M16: 21,783,245 km (0.094 R)
• M17: 26,720,124 km (0.098 R)
• M18: 28,308,106 km (0.115 R)
• M19: 30,997,427 km (0.026 R)
• M20: 31,477,636 km (0.091 R)
• M21: 33,448,588 km (0.104 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: 535 - 12,246 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit