🌌 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: 366.1

Radius: 12.9

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.67 AU - 0.91 AU

Year: 461 Days

Day: 11.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,688,077 km

• M1: 161,267 km (0.03 R)
• M2: 601,234 km (0.038 R)
• M3: 1,051,673 km (0.072 R)
• M4: 1,570,329 km (0.09 R)
• M5: 2,185,176 km (0.111 R)
• M6: 3,131,532 km (0.055 R)
• M7: 3,571,051 km (0.112 R)
• M8: 3,989,476 km (0.1 R)
• M9: 4,984,003 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.2

Radius: 12.3

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.65 AU - 2.71 AU

Year: 2878 Days

Day: 14.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 120.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,688,077 km

• M1: 154,535 km (0.102 R)
• M2: 561,740 km (0.117 R)
• M3: 2,045,152 km (0.115 R)
• M4: 2,521,771 km (0.042 R)
• M5: 3,140,508 km (0.117 R)
• M6: 3,532,754 km (0.074 R)
• M7: 4,225,392 km (0.062 R)
• M8: 5,125,672 km (0.114 R)
• M9: 5,934,697 km (0.119 R)
• M10: 9,632,607 km (0.037 R)
• M11: 12,198,210 km (0.105 R)
• M12: 12,904,911 km (0.095 R)
• M13: 13,920,830 km (0.077 R)
• M14: 14,890,074 km (0.102 R)
• M15: 15,748,766 km (0.098 R)
• M16: 16,321,876 km (0.12 R)
• M17: 18,986,962 km (0.1 R)
• M18: 20,669,040 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.4

Radius: 12.9

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 3.73 AU - 4.15 AU

Year: 5130 Days

Day: 6.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,688,077 km

• M1: 160,519 km (0.107 R)
• M2: 699,819 km (0.061 R)
• M3: 1,165,367 km (0.106 R)
• M4: 1,782,010 km (0.054 R)
• M5: 3,095,330 km (0.12 R)
• M6: 3,680,706 km (0.113 R)
• M7: 4,567,821 km (0.089 R)
• M8: 5,100,091 km (0.074 R)
• M9: 5,837,309 km (0.051 R)
• M10: 7,426,637 km (0.102 R)
• M11: 8,552,211 km (0.119 R)
• M12: 9,710,398 km (0.079 R)
• M13: 13,616,548 km (0.094 R)
• M14: 14,826,944 km (0.057 R)
• M15: 17,461,063 km (0.118 R)
• M16: 18,165,520 km (0.106 R)
• M17: 18,950,011 km (0.112 R)
• M18: 20,781,388 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.2

Radius: 13.4

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.66 AU - 4.28 AU

Year: 5189 Days

Day: 7.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 81,688,077 km

• M1: 166,652 km (0.119 R)
• M2: 667,057 km (0.105 R)
• M3: 1,313,170 km (0.104 R)
• M4: 1,740,870 km (0.118 R)
• M5: 2,705,477 km (0.113 R)
• M6: 3,456,758 km (0.104 R)
• M7: 3,976,611 km (0.1 R)
• M8: 4,813,910 km (0.066 R)
• M9: 5,464,810 km (0.113 R)
• M10: 6,500,775 km (0.111 R)
• M11: 7,738,399 km (0.028 R)
• M12: 8,197,066 km (0.045 R)
• M13: 8,674,133 km (0.057 R)
• M14: 9,771,434 km (0.059 R)
• M15: 12,088,555 km (0.116 R)
• M16: 13,897,941 km (0.067 R)
• M17: 17,717,624 km (0.083 R)
• M18: 18,584,992 km (0.1 R)
• M19: 21,883,027 km (0.074 R)
• M20: 23,910,228 km (0.118 R)
• M21: 25,552,962 km (0.11 R)
• M22: 27,533,488 km (0.067 R)
• M23: 30,836,310 km (0.112 R)
• M24: 34,087,969 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.6

Radius: 13.3

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 4.41 AU - 5.45 AU

Year: 7181 Days

Day: 13.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,688,077 km

• M1: 166,353 km (0.118 R)
• M2: 1,135,747 km (0.039 R)
• M3: 3,494,457 km (0.117 R)
• M4: 5,793,776 km (0.114 R)
• M5: 6,236,286 km (0.091 R)
• M6: 7,189,674 km (0.103 R)
• M7: 7,739,147 km (0.087 R)
• M8: 8,277,101 km (0.042 R)
• M9: 9,953,494 km (0.085 R)
• M10: 11,352,085 km (0.115 R)
• M11: 12,510,122 km (0.092 R)
• M12: 13,745,501 km (0.119 R)
• M13: 17,285,436 km (0.093 R)
• M14: 18,341,297 km (0.1 R)
• M15: 26,365,578 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 105.4

Radius: 3.5

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 8.8 AU - 9.68 AU

Year: 18425 Days

Day: 18.2 Hours

Environment

Temp: -237 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 81,688,077 km

• M1: 43,533 km (0.102 R)
• M2: 153,936 km (0.08 R)
• M3: 308,022 km (0.064 R)
• M4: 494,571 km (0.116 R)
• M5: 889,958 km (0.06 R)
• M6: 1,725,312 km (0.026 R)
• M7: 2,077,017 km (0.108 R)
• M8: 2,740,184 km (0.025 R)
• M9: 2,880,058 km (0.066 R)
• M10: 3,628,048 km (0.115 R)
• M11: 4,334,748 km (0.042 R)
• M12: 5,403,026 km (0.088 R)
• M13: 5,591,520 km (0.096 R)
• M14: 5,784,202 km (0.086 R)
• M15: 8,003,336 km (0.091 R)
• M16: 9,233,480 km (0.113 R)
• M17: 10,929,022 km (0.067 R)
• M18: 13,044,186 km (0.103 R)
• M19: 13,269,630 km (0.11 R)
• M20: 13,383,325 km (0.091 R)
• M21: 17,923,321 km (0.096 R)
• M22: 18,412,805 km (0.049 R)
• M23: 19,934,814 km (0.119 R)
• M24: 24,060,125 km (0.111 R)
• M25: 26,053,367 km (0.105 R)
• M26: 26,771,586 km (0.086 R)
• M27: 29,197,166 km (0.091 R)
• M28: 31,059,660 km (0.109 R)
• M29: 31,562,608 km (0.078 R)
• M30: 34,802,748 km (0.111 R)
• M31: 36,558,728 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 819.4

Radius: 3.4

Gravity: 70.88 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 7.69 AU - 12.05 AU

Year: 20342 Days

Day: 19.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 81,688,077 km

• M1: 42,785 km (0.076 R)
• M2: 205,547 km (0.101 R)
• M3: 370,404 km (0.076 R)
• M4: 487,390 km (0.108 R)
• M5: 798,404 km (0.078 R)
• M6: 1,228,348 km (0.104 R)
• M7: 1,380,190 km (0.101 R)
• M8: 2,404,636 km (0.099 R)
• M9: 2,717,595 km (0.088 R)
• M10: 3,030,105 km (0.05 R)
• M11: 3,139,311 km (0.081 R)
• M12: 4,593,403 km (0.099 R)
• M13: 7,937,663 km (0.051 R)
• M14: 9,884,979 km (0.116 R)
• M15: 10,004,956 km (0.079 R)
• M16: 10,745,765 km (0.116 R)
• M17: 12,197,462 km (0.107 R)
• M18: 12,614,990 km (0.102 R)
• M19: 13,041,942 km (0.045 R)
• M20: 17,240,556 km (0.038 R)
• M21: 17,854,655 km (0.059 R)
• M22: 18,392,609 km (0.115 R)
• M23: 20,947,442 km (0.086 R)
• M24: 21,747,641 km (0.054 R)
• M25: 22,985,713 km (0.118 R)
• M26: 25,152,189 km (0.061 R)
• M27: 25,941,468 km (0.037 R)
• M28: 30,263,200 km (0.11 R)
• M29: 30,516,470 km (0.094 R)
• M30: 39,840,007 km (0.102 R)
• M31: 41,220,945 km (0.092 R)
• M32: 43,916,101 km (0.109 R)
• M33: 59,760,759 km (0.102 R)
• M34: 61,771,205 km (0.065 R)
• M35: 62,587,860 km (0.074 R)
• M36: 63,205,100 km (0.064 R)
• M37: 65,081,207 km (0.062 R)
• M38: 65,503,073 km (0.041 R)
• M39: 67,424,060 km (0.094 R)
• M40: 78,306,706 km (0.096 R)
• M41: 79,985,494 km (0.109 R)
• M42: 80,712,240 km (0.062 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 172 - 11,857 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit