🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.3

Radius: 11.8

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.65 AU - 0.93 AU

Year: 461 Days

Day: 7.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,179,957 km

• M1: 146,756 km (0.059 R)
• M2: 689,048 km (0.036 R)
• M3: 1,165,517 km (0.061 R)
• M4: 2,517,882 km (0.03 R)
• M5: 3,112,384 km (0.099 R)
• M6: 3,531,707 km (0.098 R)
• M7: 4,347,165 km (0.056 R)
• M8: 5,346,777 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.1

Radius: 13.3

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.93 AU - 1.01 AU

Year: 627 Days

Day: 10.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,179,957 km

• M1: 165,605 km (0.115 R)
• M2: 687,552 km (0.081 R)
• M3: 1,152,502 km (0.101 R)
• M4: 1,776,026 km (0.09 R)
• M5: 2,408,526 km (0.05 R)
• M6: 3,005,421 km (0.116 R)
• M7: 3,510,015 km (0.072 R)
• M8: 4,085,817 km (0.1 R)
• M9: 4,724,151 km (0.113 R)
• M10: 5,197,778 km (0.071 R)
• M11: 5,834,467 km (0.115 R)
• M12: 7,486,625 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.6

Radius: 11.9

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.32 AU - 2.14 AU

Year: 1493 Days

Day: 12.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 81,179,957 km

• M1: 149,747 km (0.066 R)
• M2: 2,691,415 km (0.101 R)
• M3: 3,986,484 km (0.095 R)
• M4: 4,622,125 km (0.099 R)
• M5: 5,215,281 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.4

Radius: 13

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 3.37 AU - 5.13 AU

Year: 5748 Days

Day: 10.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,179,957 km

• M1: 162,014 km (0.03 R)
• M2: 645,066 km (0.082 R)
• M3: 1,261,409 km (0.108 R)
• M4: 2,317,271 km (0.12 R)
• M5: 2,722,532 km (0.073 R)
• M6: 3,451,223 km (0.085 R)
• M7: 5,747,251 km (0.118 R)
• M8: 7,351,090 km (0.112 R)
• M9: 8,201,703 km (0.082 R)
• M10: 8,727,540 km (0.088 R)
• M11: 10,355,165 km (0.104 R)
• M12: 11,059,920 km (0.034 R)
• M13: 12,418,718 km (0.065 R)
• M14: 12,912,241 km (0.052 R)
• M15: 15,522,574 km (0.04 R)
• M16: 17,042,040 km (0.118 R)
• M17: 19,769,359 km (0.063 R)
• M18: 20,716,912 km (0.044 R)
• M19: 21,412,093 km (0.1 R)
• M20: 22,629,520 km (0.082 R)
• M21: 23,292,388 km (0.058 R)
• M22: 24,734,512 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.1

Radius: 15

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 3.65 AU - 4.97 AU

Year: 5870 Days

Day: 14.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,179,957 km

• M1: 255,364 km (0.079 R)
• M2: 826,827 km (0.11 R)
• M3: 1,335,161 km (0.102 R)
• M4: 1,818,512 km (0.096 R)
• M5: 2,523,118 km (0.079 R)
• M6: 3,384,652 km (0.078 R)
• M7: 4,885,717 km (0.036 R)
• M8: 5,786,446 km (0.047 R)
• M9: 7,288,259 km (0.115 R)
• M10: 10,580,160 km (0.07 R)
• M11: 11,537,437 km (0.084 R)
• M12: 12,551,860 km (0.046 R)
• M13: 14,469,405 km (0.105 R)
• M14: 17,020,199 km (0.082 R)
• M15: 19,504,421 km (0.119 R)
• M16: 24,685,743 km (0.056 R)
• M17: 28,398,014 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.6

Radius: 8.2

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.65 AU - 5.93 AU

Year: 6877 Days

Day: 13.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 81,179,957 km

• M1: 102,026 km (0.039 R)
• M2: 436,078 km (0.093 R)
• M3: 826,079 km (0.098 R)
• M4: 1,229,395 km (0.086 R)
• M5: 1,571,974 km (0.026 R)
• M6: 1,885,980 km (0.101 R)
• M7: 2,674,810 km (0.102 R)
• M8: 3,526,321 km (0.112 R)
• M9: 4,739,560 km (0.066 R)
• M10: 6,007,850 km (0.071 R)
• M11: 6,387,231 km (0.087 R)
• M12: 7,065,507 km (0.056 R)
• M13: 7,655,521 km (0.117 R)
• M14: 8,242,543 km (0.093 R)
• M15: 12,459,408 km (0.094 R)
• M16: 12,932,736 km (0.116 R)
• M17: 16,989,082 km (0.109 R)
• M18: 18,837,364 km (0.098 R)
• M19: 21,080,883 km (0.095 R)
• M20: 22,928,866 km (0.115 R)
• M21: 24,073,589 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402.2

Radius: 3.9

Gravity: 26.44 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 4.93 AU - 6.97 AU

Year: 9521 Days

Day: 22 Hours

Environment

Temp: -217 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,179,957 km

• M1: 50,564 km (0.119 R)
• M2: 647,460 km (0.114 R)
• M3: 1,272,779 km (0.099 R)
• M4: 1,430,156 km (0.042 R)
• M5: 2,385,488 km (0.113 R)
• M6: 2,861,807 km (0.098 R)
• M7: 5,630,565 km (0.086 R)
• M8: 6,398,301 km (0.096 R)
• M9: 6,935,208 km (0.115 R)
• M10: 10,218,881 km (0.098 R)
• M11: 10,901,047 km (0.076 R)
• M12: 12,033,503 km (0.061 R)
• M13: 14,711,155 km (0.03 R)
• M14: 14,833,227 km (0.104 R)
• M15: 19,176,951 km (0.113 R)
• M16: 21,675,535 km (0.073 R)
• M17: 25,071,556 km (0.055 R)
• M18: 34,480,963 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.6

Radius: 3.4

Gravity: 67.7 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 7.77 AU - 12.15 AU

Year: 20620 Days

Day: 20.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 81,179,957 km

• M1: 42,336 km (0.091 R)
• M2: 316,100 km (0.108 R)
• M3: 598,840 km (0.04 R)
• M4: 815,308 km (0.109 R)
• M5: 966,552 km (0.088 R)
• M6: 1,163,871 km (0.115 R)
• M7: 1,325,288 km (0.094 R)
• M8: 2,146,580 km (0.11 R)
• M9: 2,277,179 km (0.033 R)
• M10: 2,389,976 km (0.071 R)
• M11: 4,672,540 km (0.083 R)
• M12: 5,196,282 km (0.113 R)
• M13: 5,716,583 km (0.088 R)
• M14: 6,767,060 km (0.1 R)
• M15: 6,953,907 km (0.1 R)
• M16: 7,096,325 km (0.088 R)
• M17: 9,015,516 km (0.119 R)
• M18: 9,128,163 km (0.098 R)
• M19: 11,985,632 km (0.094 R)
• M20: 14,521,615 km (0.084 R)
• M21: 16,791,164 km (0.033 R)
• M22: 17,568,026 km (0.071 R)
• M23: 19,473,454 km (0.114 R)
• M24: 20,719,455 km (0.101 R)
• M25: 21,411,943 km (0.109 R)
• M26: 24,227,674 km (0.102 R)
• M27: 35,379,298 km (0.088 R)
• M28: 36,225,124 km (0.032 R)
• M29: 36,509,959 km (0.119 R)
• M30: 38,546,285 km (0.111 R)
• M31: 43,162,127 km (0.03 R)
• M32: 44,778,981 km (0.112 R)
• M33: 46,268,228 km (0.096 R)
• M34: 58,602,123 km (0.092 R)
• M35: 60,582,500 km (0.026 R)
• M36: 60,782,961 km (0.039 R)
• M37: 61,185,230 km (0.118 R)
• M38: 64,259,017 km (0.032 R)
• M39: 73,637,308 km (0.104 R)
• M40: 75,477,062 km (0.029 R)
• M41: 80,936,786 km (0.087 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: 371 - 14,133 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit