🌌 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: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.9

Radius: 13.2

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.54 AU - 0.74 AU

Year: 353 Days

Day: 5.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 89,471,011 km

• M1: 164,109 km (0.115 R)
• M2: 790,924 km (0.066 R)
• M3: 1,254,677 km (0.101 R)
• M4: 1,784,104 km (0.112 R)
• M5: 2,213,450 km (0.106 R)
• M6: 2,662,842 km (0.056 R)
• M7: 3,192,269 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.2

Radius: 14.3

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.74 AU - 0.9 AU

Year: 513 Days

Day: 10.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 89,471,011 km

• M1: 177,872 km (0.101 R)
• M2: 626,516 km (0.119 R)
• M3: 1,168,359 km (0.115 R)
• M4: 1,666,221 km (0.093 R)
• M5: 2,441,587 km (0.119 R)
• M6: 3,005,122 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.3

Radius: 8.2

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.94 AU - 1.24 AU

Year: 786 Days

Day: 8.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 89,471,011 km

• M1: 102,026 km (0.026 R)
• M2: 385,364 km (0.056 R)
• M3: 859,889 km (0.116 R)
• M4: 1,550,881 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.9

Radius: 14.9

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.45 AU - 3.37 AU

Year: 3426 Days

Day: 10.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 89,471,011 km

• M1: 192,981 km (0.117 R)
• M2: 712,235 km (0.055 R)
• M3: 1,245,552 km (0.063 R)
• M4: 1,723,367 km (0.115 R)
• M5: 2,312,484 km (0.062 R)
• M6: 3,158,161 km (0.063 R)
• M7: 3,644,354 km (0.116 R)
• M8: 5,286,639 km (0.096 R)
• M9: 5,895,054 km (0.065 R)
• M10: 6,849,638 km (0.107 R)
• M11: 7,639,814 km (0.095 R)
• M12: 10,706,121 km (0.08 R)
• M13: 14,213,443 km (0.071 R)
• M14: 15,184,633 km (0.049 R)
• M15: 17,032,615 km (0.051 R)
• M16: 18,424,623 km (0.11 R)
• M17: 22,918,095 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.7

Radius: 11.2

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.52 AU - 4.14 AU

Year: 4194 Days

Day: 12.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 89,471,011 km

• M1: 139,425 km (0.118 R)
• M2: 507,436 km (0.07 R)
• M3: 1,011,730 km (0.07 R)
• M4: 1,717,234 km (0.082 R)
• M5: 2,158,697 km (0.053 R)
• M6: 2,510,701 km (0.093 R)
• M7: 2,937,354 km (0.109 R)
• M8: 3,293,696 km (0.116 R)
• M9: 4,689,594 km (0.114 R)
• M10: 5,232,934 km (0.09 R)
• M11: 5,993,040 km (0.103 R)
• M12: 6,384,538 km (0.062 R)
• M13: 6,761,076 km (0.093 R)
• M14: 7,185,635 km (0.115 R)
• M15: 8,016,501 km (0.087 R)
• M16: 8,948,945 km (0.092 R)
• M17: 10,077,361 km (0.075 R)
• M18: 11,298,379 km (0.074 R)
• M19: 15,892,081 km (0.049 R)
• M20: 17,849,270 km (0.045 R)
• M21: 18,535,924 km (0.084 R)
• M22: 20,430,880 km (0.071 R)
• M23: 22,165,318 km (0.089 R)
• M24: 23,251,847 km (0.067 R)
• M25: 25,296,850 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.9

Radius: 12.6

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.4 AU - 6.32 AU

Year: 8566 Days

Day: 5.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,471,011 km

• M1: 156,779 km (0.06 R)
• M2: 550,520 km (0.084 R)
• M3: 1,558,660 km (0.111 R)
• M4: 1,997,880 km (0.05 R)
• M5: 3,229,070 km (0.111 R)
• M6: 4,488,684 km (0.102 R)
• M7: 5,504,753 km (0.097 R)
• M8: 8,846,919 km (0.096 R)
• M9: 18,937,894 km (0.061 R)
• M10: 27,701,187 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 61.1

Radius: 3.7

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 5.77 AU - 8.49 AU

Year: 13142 Days

Day: 22.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 89,471,011 km

• M1: 46,076 km (0.106 R)
• M2: 621,280 km (0.044 R)
• M3: 855,401 km (0.034 R)
• M4: 1,712,297 km (0.055 R)
• M5: 1,879,248 km (0.102 R)
• M6: 2,675,109 km (0.115 R)
• M7: 3,026,814 km (0.08 R)
• M8: 3,951,628 km (0.11 R)
• M9: 4,721,458 km (0.071 R)
• M10: 6,012,189 km (0.08 R)
• M11: 6,129,324 km (0.104 R)
• M12: 7,122,355 km (0.091 R)
• M13: 9,382,030 km (0.088 R)
• M14: 12,836,544 km (0.084 R)
• M15: 17,346,920 km (0.065 R)
• M16: 19,120,553 km (0.116 R)
• M17: 19,823,812 km (0.047 R)
• M18: 21,898,136 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 821.7

Radius: 3

Gravity: 91.3 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 8.4 AU - 12.48 AU

Year: 23284 Days

Day: 19.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 87.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 89,471,011 km

• M1: 61,934 km (0.117 R)
• M2: 156,330 km (0.093 R)
• M3: 282,740 km (0.112 R)
• M4: 396,734 km (0.083 R)
• M5: 500,405 km (0.04 R)
• M6: 612,753 km (0.053 R)
• M7: 913,744 km (0.106 R)
• M8: 1,451,548 km (0.104 R)
• M9: 1,555,369 km (0.101 R)
• M10: 2,286,903 km (0.104 R)
• M11: 2,427,973 km (0.11 R)
• M12: 3,135,871 km (0.089 R)
• M13: 3,460,199 km (0.087 R)
• M14: 3,583,467 km (0.112 R)
• M15: 4,244,840 km (0.052 R)
• M16: 4,641,274 km (0.086 R)
• M17: 6,710,661 km (0.109 R)
• M18: 7,655,671 km (0.064 R)
• M19: 9,804,794 km (0.086 R)
• M20: 9,927,913 km (0.099 R)
• M21: 15,243,873 km (0.109 R)
• M22: 18,876,110 km (0.113 R)
• M23: 26,219,420 km (0.104 R)
• M24: 29,162,310 km (0.104 R)
• M25: 30,976,782 km (0.11 R)
• M26: 31,911,619 km (0.054 R)
• M27: 33,697,220 km (0.098 R)
• M28: 36,277,932 km (0.112 R)
• M29: 40,233,749 km (0.055 R)
• M30: 44,974,206 km (0.098 R)
• M31: 48,273,587 km (0.09 R)
• M32: 49,348,149 km (0.074 R)
• M33: 51,359,343 km (0.102 R)
• M34: 56,328,984 km (0.115 R)
• M35: 60,569,335 km (0.118 R)
• M36: 64,800,861 km (0.061 R)
• M37: 71,973,929 km (0.093 R)
• M38: 73,846,446 km (0.103 R)
• M39: 75,033,056 km (0.091 R)
• M40: 75,511,171 km (0.072 R)
• M41: 75,991,380 km (0.083 R)
• M42: 80,905,969 km (0.117 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 338 - 12,011 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit