🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.2

Radius: 10.5

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.67 AU - 0.75 AU

Year: 413 Days

Day: 8.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,706,466 km

• M1: 130,599 km (0.03 R)
• M2: 512,373 km (0.098 R)
• M3: 876,344 km (0.079 R)
• M4: 1,382,434 km (0.111 R)
• M5: 1,753,586 km (0.064 R)
• M6: 2,919,103 km (0.118 R)
• M7: 3,418,461 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.3

Radius: 13.8

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.71 AU - 0.89 AU

Year: 494 Days

Day: 9 Hours

Environment

Temp: -167 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,706,466 km

• M1: 171,589 km (0.078 R)
• M2: 660,923 km (0.067 R)
• M3: 1,148,762 km (0.095 R)
• M4: 2,035,429 km (0.082 R)
• M5: 2,487,663 km (0.066 R)
• M6: 2,997,941 km (0.115 R)
• M7: 3,545,170 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.9

Radius: 14

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.94 AU - 0.94 AU

Year: 629 Days

Day: 10 Hours

Environment

Temp: -168 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,706,466 km

• M1: 174,132 km (0.095 R)
• M2: 659,727 km (0.08 R)
• M3: 1,154,447 km (0.108 R)
• M4: 1,802,056 km (0.056 R)
• M5: 2,310,390 km (0.055 R)
• M6: 2,793,890 km (0.114 R)
• M7: 3,494,307 km (0.115 R)
• M8: 4,336,543 km (0.091 R)
• M9: 5,232,934 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.9

Radius: 14

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.86 AU - 1.16 AU

Year: 701 Days

Day: 12.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,706,466 km

• M1: 174,132 km (0.107 R)
• M2: 726,148 km (0.084 R)
• M3: 1,690,456 km (0.101 R)
• M4: 2,282,864 km (0.118 R)
• M5: 2,856,871 km (0.109 R)
• M6: 3,880,718 km (0.111 R)
• M7: 4,464,300 km (0.086 R)
• M8: 5,307,284 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.3

Radius: 10.4

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.93 AU - 1.13 AU

Year: 722 Days

Day: 8.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,706,466 km

• M1: 130,001 km (0.113 R)
• M2: 504,444 km (0.089 R)
• M3: 860,637 km (0.097 R)
• M4: 1,239,119 km (0.089 R)
• M5: 1,941,032 km (0.112 R)
• M6: 2,277,029 km (0.099 R)
• M7: 2,619,459 km (0.108 R)
• M8: 3,370,440 km (0.089 R)
• M9: 3,733,664 km (0.083 R)
• M10: 4,258,902 km (0.111 R)
• M11: 4,899,779 km (0.081 R)
• M12: 5,261,357 km (0.116 R)
• M13: 5,941,878 km (0.103 R)
• M14: 6,273,836 km (0.119 R)
• M15: 6,847,543 km (0.085 R)
• M16: 7,455,958 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.2

Radius: 13

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.87 AU - 5.43 AU

Year: 6921 Days

Day: 14.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 44,706,466 km

• M1: 161,715 km (0.116 R)
• M2: 587,172 km (0.093 R)
• M3: 1,045,091 km (0.091 R)
• M4: 1,466,059 km (0.115 R)
• M5: 1,893,909 km (0.08 R)
• M6: 2,438,146 km (0.087 R)
• M7: 2,992,107 km (0.059 R)
• M8: 4,095,541 km (0.098 R)
• M9: 4,502,148 km (0.095 R)
• M10: 4,935,832 km (0.032 R)
• M11: 5,482,014 km (0.086 R)
• M12: 5,917,942 km (0.114 R)
• M13: 6,503,468 km (0.1 R)
• M14: 8,571,808 km (0.104 R)
• M15: 9,610,317 km (0.087 R)
• M16: 10,641,794 km (0.068 R)
• M17: 12,033,204 km (0.098 R)
• M18: 13,231,184 km (0.12 R)
• M19: 14,950,213 km (0.108 R)
• M20: 15,402,298 km (0.106 R)
• M21: 16,038,837 km (0.116 R)
• M22: 16,996,113 km (0.094 R)
• M23: 19,156,157 km (0.085 R)
• M24: 19,757,391 km (0.112 R)
• M25: 22,142,878 km (0.063 R)
• M26: 23,028,947 km (0.098 R)
• M27: 24,015,395 km (0.11 R)
• M28: 27,563,707 km (0.074 R)
• M29: 28,330,396 km (0.115 R)
• M30: 29,286,626 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.9

Radius: 14.7

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.8 AU - 6.18 AU

Year: 7694 Days

Day: 6.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,706,466 km

• M1: 183,557 km (0.114 R)
• M2: 700,866 km (0.088 R)
• M3: 1,230,143 km (0.117 R)
• M4: 2,301,414 km (0.116 R)
• M5: 3,109,392 km (0.054 R)
• M6: 3,580,775 km (0.064 R)
• M7: 4,616,291 km (0.108 R)
• M8: 5,412,002 km (0.039 R)
• M9: 11,226,123 km (0.058 R)
• M10: 12,138,820 km (0.12 R)
• M11: 13,432,243 km (0.091 R)
• M12: 16,741,049 km (0.076 R)
• M13: 24,087,800 km (0.066 R)
• M14: 25,093,098 km (0.054 R)
• M15: 25,606,069 km (0.066 R)
• M16: 29,490,228 km (0.082 R)
• M17: 33,958,717 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.6

Radius: 14.1

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 4.61 AU - 5.79 AU

Year: 8185 Days

Day: 6.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,706,466 km

• M1: 177,423 km (0.095 R)
• M2: 949,049 km (0.075 R)
• M3: 2,580,414 km (0.103 R)
• M4: 3,335,135 km (0.117 R)
• M5: 4,315,001 km (0.053 R)
• M6: 5,008,387 km (0.099 R)
• M7: 6,222,523 km (0.112 R)
• M8: 6,842,607 km (0.089 R)
• M9: 7,706,086 km (0.046 R)
• M10: 8,378,827 km (0.114 R)
• M11: 10,184,025 km (0.081 R)
• M12: 11,204,581 km (0.095 R)
• M13: 13,036,108 km (0.055 R)
• M14: 13,749,391 km (0.112 R)
• M15: 14,239,174 km (0.066 R)
• M16: 23,146,680 km (0.1 R)
• M17: 23,753,449 km (0.089 R)
• M18: 24,459,850 km (0.108 R)
• M19: 28,302,421 km (0.066 R)
• M20: 29,499,204 km (0.093 R)
• M21: 32,314,935 km (0.06 R)
• M22: 33,073,247 km (0.113 R)
• M23: 38,718,023 km (0.098 R)
• M24: 40,316,925 km (0.1 R)
• M25: 40,943,591 km (0.075 R)
• M26: 41,576,539 km (0.09 R)
• M27: 43,122,484 km (0.078 R)
• M28: 44,041,763 km (0.107 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 542 - 18,365 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit