🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.4

Radius: 8.1

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.48 AU - 0.78 AU

Year: 339 Days

Day: 12.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,878,499 km

• M1: 100,679 km (0.098 R)
• M2: 372,798 km (0.085 R)
• M3: 671,096 km (0.091 R)
• M4: 1,068,877 km (0.09 R)
• M5: 1,354,459 km (0.112 R)
• M6: 1,794,576 km (0.111 R)
• M7: 2,285,407 km (0.115 R)
• M8: 2,544,959 km (0.105 R)
• M9: 2,814,534 km (0.066 R)
• M10: 3,346,355 km (0.11 R)
• M11: 3,811,455 km (0.114 R)
• M12: 4,242,147 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.4

Radius: 12.4

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.7 AU - 1.12 AU

Year: 589 Days

Day: 5.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,878,499 km

• M1: 154,235 km (0.105 R)
• M2: 670,198 km (0.041 R)
• M3: 1,070,223 km (0.119 R)
• M4: 1,553,424 km (0.054 R)
• M5: 2,582,059 km (0.111 R)
• M6: 3,031,002 km (0.086 R)
• M7: 3,422,650 km (0.045 R)
• M8: 3,887,749 km (0.1 R)
• M9: 4,309,765 km (0.051 R)
• M10: 5,008,537 km (0.093 R)
• M11: 5,746,952 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.1

Radius: 9.8

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.79 AU - 1.09 AU

Year: 618 Days

Day: 11.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 48,878,499 km

• M1: 121,922 km (0.056 R)
• M2: 429,795 km (0.06 R)
• M3: 771,775 km (0.052 R)
• M4: 1,905,129 km (0.027 R)
• M5: 3,077,677 km (0.065 R)
• M6: 3,969,729 km (0.053 R)
• M7: 5,776,871 km (0.113 R)
• M8: 7,728,376 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.4

Radius: 10.3

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.27 AU - 1.59 AU

Year: 1160 Days

Day: 14.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,878,499 km

• M1: 128,505 km (0.097 R)
• M2: 818,001 km (0.053 R)
• M3: 1,494,034 km (0.108 R)
• M4: 1,862,643 km (0.056 R)
• M5: 2,363,198 km (0.071 R)
• M6: 2,810,495 km (0.113 R)
• M7: 3,621,764 km (0.103 R)
• M8: 4,158,073 km (0.087 R)
• M9: 6,031,038 km (0.06 R)
• M10: 7,602,564 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.7

Radius: 14.5

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.65 AU - 1.69 AU

Year: 1464 Days

Day: 12.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,878,499 km

• M1: 180,565 km (0.096 R)
• M2: 705,653 km (0.106 R)
• M3: 1,213,688 km (0.109 R)
• M4: 1,686,566 km (0.083 R)
• M5: 2,178,145 km (0.062 R)
• M6: 3,039,829 km (0.113 R)
• M7: 3,902,410 km (0.038 R)
• M8: 4,518,454 km (0.03 R)
• M9: 5,530,484 km (0.086 R)
• M10: 6,139,197 km (0.092 R)
• M11: 6,637,508 km (0.053 R)
• M12: 8,846,320 km (0.101 R)
• M13: 9,948,558 km (0.107 R)
• M14: 11,771,258 km (0.026 R)
• M15: 12,662,562 km (0.113 R)
• M16: 13,145,165 km (0.091 R)
• M17: 13,892,107 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.7

Radius: 9.4

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.82 AU - 4.58 AU

Year: 4827 Days

Day: 9.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 48,878,499 km

• M1: 118,930 km (0.087 R)
• M2: 696,079 km (0.103 R)
• M3: 1,073,664 km (0.108 R)
• M4: 1,858,155 km (0.068 R)
• M5: 2,215,993 km (0.08 R)
• M6: 2,781,473 km (0.065 R)
• M7: 4,178,269 km (0.114 R)
• M8: 4,678,673 km (0.065 R)
• M9: 5,142,726 km (0.088 R)
• M10: 5,772,383 km (0.12 R)
• M11: 6,249,002 km (0.12 R)
• M12: 6,690,914 km (0.064 R)
• M13: 8,422,360 km (0.117 R)
• M14: 9,563,343 km (0.032 R)
• M15: 10,111,320 km (0.055 R)
• M16: 11,442,143 km (0.062 R)
• M17: 12,014,953 km (0.118 R)
• M18: 14,550,039 km (0.119 R)
• M19: 14,857,761 km (0.116 R)
• M20: 15,861,264 km (0.078 R)
• M21: 17,306,978 km (0.113 R)
• M22: 18,417,443 km (0.078 R)
• M23: 20,139,763 km (0.096 R)
• M24: 20,909,893 km (0.118 R)
• M25: 23,059,165 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 967.8

Radius: 4.2

Gravity: 54.86 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 6.93 AU - 8.29 AU

Year: 14239 Days

Day: 15.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 48,878,499 km

• M1: 54,005 km (0.104 R)
• M2: 188,344 km (0.072 R)
• M3: 673,190 km (0.102 R)
• M4: 1,077,254 km (0.092 R)
• M5: 1,626,877 km (0.093 R)
• M6: 1,798,466 km (0.077 R)
• M7: 2,198,640 km (0.084 R)
• M8: 3,018,885 km (0.105 R)
• M9: 5,237,122 km (0.078 R)
• M10: 5,460,322 km (0.104 R)
• M11: 6,086,838 km (0.081 R)
• M12: 6,803,562 km (0.097 R)
• M13: 13,323,934 km (0.06 R)
• M14: 13,670,104 km (0.078 R)
• M15: 14,818,417 km (0.09 R)
• M16: 17,468,843 km (0.057 R)
• M17: 18,475,038 km (0.12 R)
• M18: 18,732,496 km (0.113 R)
• M19: 30,864,733 km (0.114 R)
• M20: 34,748,593 km (0.098 R)
• M21: 37,694,325 km (0.082 R)
• M22: 39,227,703 km (0.063 R)
• M23: 41,384,905 km (0.112 R)
• M24: 43,924,029 km (0.058 R)
• M25: 45,777,547 km (0.098 R)
• M26: 46,248,930 km (0.084 R)
• M27: 47,361,339 km (0.117 R)
• M28: 49,145,444 km (0.117 R)
• M29: 49,970,925 km (0.105 R)
• M30: 50,973,829 km (0.114 R)
• M31: 61,750,111 km (0.072 R)
• M32: 65,454,903 km (0.072 R)
• M33: 67,260,399 km (0.025 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 173

Radius: 5.5

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 8.91 AU - 10.49 AU

Year: 20490 Days

Day: 24.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 48,878,499 km

• M1: 68,965 km (0.099 R)
• M2: 250,128 km (0.062 R)
• M3: 916,437 km (0.087 R)
• M4: 1,682,826 km (0.118 R)
• M5: 2,500,828 km (0.117 R)
• M6: 3,076,630 km (0.11 R)
• M7: 4,058,441 km (0.116 R)
• M8: 4,516,210 km (0.093 R)
• M9: 4,912,944 km (0.056 R)
• M10: 5,671,405 km (0.107 R)
• M11: 5,917,045 km (0.116 R)
• M12: 6,206,367 km (0.085 R)
• M13: 6,735,345 km (0.057 R)
• M14: 8,013,210 km (0.084 R)
• M15: 10,611,426 km (0.111 R)
• M16: 10,823,705 km (0.088 R)
• M17: 11,201,889 km (0.112 R)
• M18: 13,534,867 km (0.09 R)
• M19: 19,056,375 km (0.116 R)
• M20: 20,332,445 km (0.092 R)
• M21: 24,042,472 km (0.029 R)
• M22: 26,104,230 km (0.083 R)
• M23: 27,876,666 km (0.1 R)
• M24: 29,309,364 km (0.073 R)
• M25: 29,518,053 km (0.087 R)
• M26: 30,683,122 km (0.064 R)
• M27: 33,444,698 km (0.086 R)
• M28: 34,016,162 km (0.096 R)
• M29: 39,076,460 km (0.06 R)
• M30: 48,586,247 km (0.12 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 428 - 15,793 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit