🌌 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: 292

Radius: 11

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.46 AU - 0.6 AU

Year: 257 Days

Day: 12.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 32,317,112 km

• M1: 136,882 km (0.113 R)
• M2: 693,685 km (0.08 R)
• M3: 1,129,015 km (0.114 R)
• M4: 1,630,766 km (0.05 R)
• M5: 2,042,909 km (0.118 R)
• M6: 2,440,540 km (0.075 R)
• M7: 3,108,195 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396

Radius: 9.4

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.34 AU - 1.98 AU

Year: 1426 Days

Day: 6.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,317,112 km

• M1: 116,836 km (0.114 R)
• M2: 413,937 km (0.106 R)
• M3: 756,516 km (0.104 R)
• M4: 1,385,575 km (0.027 R)
• M5: 1,796,072 km (0.104 R)
• M6: 2,156,154 km (0.069 R)
• M7: 2,492,899 km (0.111 R)
• M8: 2,930,473 km (0.119 R)
• M9: 4,075,046 km (0.079 R)
• M10: 4,720,860 km (0.062 R)
• M11: 5,116,846 km (0.102 R)
• M12: 5,721,071 km (0.103 R)
• M13: 6,530,994 km (0.087 R)
• M14: 7,316,084 km (0.099 R)
• M15: 8,004,084 km (0.09 R)
• M16: 8,486,238 km (0.08 R)
• M17: 9,362,134 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.9

Radius: 8.7

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.73 AU - 2.31 AU

Year: 1915 Days

Day: 11.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 32,317,112 km

• M1: 108,309 km (0.115 R)
• M2: 392,096 km (0.117 R)
• M3: 672,742 km (0.098 R)
• M4: 1,066,633 km (0.09 R)
• M5: 1,573,321 km (0.106 R)
• M6: 2,847,296 km (0.118 R)
• M7: 4,545,232 km (0.114 R)
• M8: 4,845,325 km (0.1 R)
• M9: 6,181,234 km (0.115 R)
• M10: 8,774,364 km (0.072 R)
• M11: 10,157,247 km (0.075 R)
• M12: 10,567,743 km (0.12 R)
• M13: 11,168,379 km (0.056 R)
• M14: 12,283,481 km (0.042 R)
• M15: 12,828,466 km (0.105 R)
• M16: 14,219,577 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.6

Radius: 9.9

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.01 AU - 2.17 AU

Year: 2015 Days

Day: 9.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 32,317,112 km

• M1: 123,119 km (0.071 R)
• M2: 1,280,558 km (0.109 R)
• M3: 3,861,570 km (0.109 R)
• M4: 5,508,642 km (0.091 R)
• M5: 6,178,542 km (0.032 R)
• M6: 7,655,222 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.2

Radius: 14.6

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.4 AU - 2.86 AU

Year: 2844 Days

Day: 8.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,317,112 km

• M1: 181,612 km (0.059 R)
• M2: 672,442 km (0.099 R)
• M3: 1,146,368 km (0.093 R)
• M4: 1,798,466 km (0.061 R)
• M5: 2,320,113 km (0.082 R)
• M6: 3,141,256 km (0.1 R)
• M7: 4,027,623 km (0.116 R)
• M8: 9,758,419 km (0.05 R)
• M9: 10,323,151 km (0.111 R)
• M10: 14,761,420 km (0.086 R)
• M11: 17,728,245 km (0.081 R)
• M12: 18,685,223 km (0.117 R)
• M13: 20,275,448 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.9

Radius: 12.4

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.14 AU - 4.46 AU

Year: 5946 Days

Day: 5.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,317,112 km

• M1: 154,684 km (0.114 R)
• M2: 562,039 km (0.112 R)
• M3: 1,465,910 km (0.1 R)
• M4: 3,788,117 km (0.085 R)
• M5: 4,748,087 km (0.096 R)
• M6: 6,345,194 km (0.058 R)
• M7: 7,418,409 km (0.086 R)
• M8: 8,079,332 km (0.119 R)
• M9: 8,575,249 km (0.094 R)
• M10: 10,338,410 km (0.092 R)
• M11: 13,488,193 km (0.112 R)
• M12: 14,473,893 km (0.103 R)
• M13: 15,356,221 km (0.11 R)
• M14: 16,483,142 km (0.095 R)
• M15: 18,729,354 km (0.095 R)
• M16: 19,132,371 km (0.119 R)
• M17: 20,015,298 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447

Radius: 12.6

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.65 AU - 5.03 AU

Year: 6029 Days

Day: 12.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,317,112 km

• M1: 159,771 km (0.082 R)
• M2: 590,762 km (0.091 R)
• M3: 1,053,169 km (0.076 R)
• M4: 2,161,240 km (0.09 R)
• M5: 2,670,920 km (0.036 R)
• M6: 3,503,133 km (0.104 R)
• M7: 3,957,911 km (0.107 R)
• M8: 4,676,429 km (0.114 R)
• M9: 6,157,149 km (0.118 R)
• M10: 6,595,920 km (0.113 R)
• M11: 7,432,022 km (0.115 R)
• M12: 9,234,078 km (0.082 R)
• M13: 9,810,628 km (0.052 R)
• M14: 12,509,224 km (0.104 R)
• M15: 15,099,212 km (0.119 R)
• M16: 17,588,222 km (0.103 R)
• M17: 18,734,441 km (0.098 R)
• M18: 19,127,285 km (0.098 R)
• M19: 21,889,310 km (0.084 R)
• M20: 26,845,487 km (0.102 R)
• M21: 27,851,384 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 228.7

Radius: 6.1

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 4.95 AU - 6.87 AU

Year: 9581 Days

Day: 23.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 32,317,112 km

• M1: 76,594 km (0.108 R)
• M2: 341,532 km (0.035 R)
• M3: 567,574 km (0.07 R)
• M4: 886,816 km (0.12 R)
• M5: 1,234,482 km (0.063 R)
• M6: 1,709,006 km (0.087 R)
• M7: 2,822,313 km (0.103 R)
• M8: 3,619,221 km (0.08 R)
• M9: 4,985,349 km (0.068 R)
• M10: 5,237,721 km (0.091 R)
• M11: 7,215,554 km (0.068 R)
• M12: 9,053,214 km (0.11 R)
• M13: 10,168,915 km (0.119 R)
• M14: 10,484,268 km (0.08 R)
• M15: 12,825,624 km (0.1 R)
• M16: 13,461,116 km (0.067 R)
• M17: 15,553,242 km (0.111 R)
• M18: 16,032,553 km (0.075 R)
• M19: 16,583,373 km (0.074 R)
• M20: 17,401,224 km (0.077 R)
• M21: 18,245,704 km (0.067 R)
• M22: 18,644,532 km (0.072 R)
• M23: 20,511,663 km (0.113 R)
• M24: 24,613,038 km (0.09 R)
• M25: 26,345,382 km (0.052 R)
• M26: 26,599,399 km (0.089 R)
• M27: 27,026,202 km (0.058 R)
• M28: 27,981,384 km (0.074 R)
• M29: 28,600,869 km (0.049 R)
• M30: 31,264,758 km (0.098 R)
• M31: 32,027,857 km (0.082 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 344 - 16,849 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit