🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.1

Radius: 14.6

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.59 AU - 0.59 AU

Year: 319 Days

Day: 8.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 76,647,678 km

• M1: 181,612 km (0.054 R)
• M2: 637,437 km (0.059 R)
• M3: 1,363,585 km (0.098 R)
• M4: 2,135,210 km (0.103 R)
• M5: 2,639,954 km (0.06 R)
• M6: 3,466,033 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.6

Radius: 9.2

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.49 AU - 0.75 AU

Year: 343 Days

Day: 9.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,647,678 km

• M1: 114,742 km (0.076 R)
• M2: 496,964 km (0.075 R)
• M3: 787,483 km (0.113 R)
• M4: 1,548,488 km (0.102 R)
• M5: 2,032,437 km (0.067 R)
• M6: 2,631,726 km (0.114 R)
• M7: 3,324,364 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.8

Radius: 12.5

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.82 AU - 1.12 AU

Year: 672 Days

Day: 9.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,647,678 km

• M1: 155,432 km (0.085 R)
• M2: 627,264 km (0.07 R)
• M3: 1,094,458 km (0.082 R)
• M4: 1,748,051 km (0.102 R)
• M5: 2,508,008 km (0.102 R)
• M6: 3,050,749 km (0.062 R)
• M7: 3,685,344 km (0.105 R)
• M8: 4,186,796 km (0.058 R)
• M9: 4,733,576 km (0.108 R)
• M10: 5,273,325 km (0.043 R)
• M11: 5,990,946 km (0.076 R)
• M12: 6,394,112 km (0.102 R)
• M13: 6,793,987 km (0.084 R)
• M14: 7,551,551 km (0.095 R)
• M15: 8,023,083 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.5

Radius: 12.1

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.5 AU - 1.6 AU

Year: 1356 Days

Day: 10.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,647,678 km

• M1: 150,495 km (0.078 R)
• M2: 699,370 km (0.074 R)
• M3: 1,233,883 km (0.06 R)
• M4: 1,855,462 km (0.037 R)
• M5: 2,599,263 km (0.071 R)
• M6: 3,159,058 km (0.091 R)
• M7: 3,714,066 km (0.101 R)
• M8: 4,240,651 km (0.072 R)
• M9: 4,917,880 km (0.119 R)
• M10: 6,366,437 km (0.104 R)
• M11: 7,045,312 km (0.112 R)
• M12: 9,565,587 km (0.077 R)
• M13: 9,988,051 km (0.112 R)
• M14: 10,940,541 km (0.108 R)
• M15: 12,558,442 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.5

Radius: 14.5

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.46 AU - 1.86 AU

Year: 1503 Days

Day: 12.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,647,678 km

• M1: 180,415 km (0.078 R)
• M2: 632,051 km (0.111 R)
• M3: 1,601,296 km (0.104 R)
• M4: 2,349,734 km (0.117 R)
• M5: 3,926,047 km (0.1 R)
• M6: 5,064,187 km (0.075 R)
• M7: 5,925,272 km (0.118 R)
• M8: 6,708,567 km (0.09 R)
• M9: 7,630,239 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.1

Radius: 13.7

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.41 AU - 4.83 AU

Year: 5878 Days

Day: 8.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,647,678 km

• M1: 170,392 km (0.071 R)
• M2: 625,469 km (0.103 R)
• M3: 1,065,735 km (0.119 R)
• M4: 2,025,406 km (0.116 R)
• M5: 2,791,197 km (0.096 R)
• M6: 3,481,142 km (0.069 R)
• M7: 10,895,811 km (0.108 R)
• M8: 11,512,603 km (0.102 R)
• M9: 16,814,053 km (0.117 R)
• M10: 20,559,535 km (0.108 R)
• M11: 22,702,823 km (0.065 R)
• M12: 25,072,753 km (0.077 R)
• M13: 27,170,264 km (0.115 R)
• M14: 27,690,566 km (0.119 R)
• M15: 29,930,644 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308.2

Radius: 3.8

Gravity: 21.34 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 6.73 AU - 10.97 AU

Year: 18506 Days

Day: 19.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,647,678 km

• M1: 48,171 km (0.037 R)
• M2: 205,697 km (0.111 R)
• M3: 636,240 km (0.058 R)
• M4: 793,018 km (0.104 R)
• M5: 1,019,509 km (0.044 R)
• M6: 2,089,882 km (0.11 R)
• M7: 3,253,454 km (0.027 R)
• M8: 3,831,949 km (0.106 R)
• M9: 13,813,419 km (0.105 R)
• M10: 18,298,512 km (0.106 R)
• M11: 18,939,838 km (0.119 R)
• M12: 35,478,033 km (0.047 R)
• M13: 35,601,451 km (0.102 R)
• M14: 49,448,529 km (0.075 R)
• M15: 54,538,597 km (0.027 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 767.3

Radius: 7.1

Gravity: 15.22 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 7.39 AU - 10.69 AU

Year: 19106 Days

Day: 23.2 Hours

Environment

Temp: -243 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 76,647,678 km

• M1: 88,412 km (0.12 R)
• M2: 464,501 km (0.1 R)
• M3: 1,056,759 km (0.095 R)
• M4: 1,449,454 km (0.097 R)
• M5: 2,176,200 km (0.102 R)
• M6: 3,044,616 km (0.117 R)
• M7: 3,513,456 km (0.104 R)
• M8: 4,125,610 km (0.069 R)
• M9: 5,599,897 km (0.042 R)
• M10: 6,834,828 km (0.093 R)
• M11: 8,714,974 km (0.07 R)
• M12: 9,150,752 km (0.074 R)
• M13: 12,687,395 km (0.091 R)
• M14: 14,416,298 km (0.053 R)
• M15: 20,157,864 km (0.084 R)
• M16: 21,016,556 km (0.105 R)
• M17: 24,267,318 km (0.093 R)
• M18: 26,011,928 km (0.107 R)
• M19: 28,072,788 km (0.096 R)
• M20: 28,783,229 km (0.103 R)
• M21: 29,627,110 km (0.118 R)
• M22: 35,176,593 km (0.096 R)
• M23: 35,725,468 km (0.104 R)
• M24: 41,685,895 km (0.103 R)
• M25: 46,939,623 km (0.11 R)
• M26: 54,424,902 km (0.099 R)
• M27: 63,272,270 km (0.052 R)
• M28: 63,880,385 km (0.118 R)
• M29: 66,770,317 km (0.102 R)
• M30: 70,829,954 km (0.043 R)
• M31: 71,485,642 km (0.096 R)
• M32: 71,925,011 km (0.049 R)
• M33: 74,373,778 km (0.071 R)
• M34: 76,418,183 km (0.102 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 402 - 20,357 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit