🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.3

Radius: 14.7

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.86 AU - 1.14 AU

Year: 690 Days

Day: 12 Hours

Environment

Temp: -165 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,598,755 km

• M1: 182,958 km (0.086 R)
• M2: 648,656 km (0.088 R)
• M3: 1,118,693 km (0.115 R)
• M4: 1,943,426 km (0.104 R)
• M5: 2,674,062 km (0.115 R)
• M6: 3,149,035 km (0.048 R)
• M7: 5,189,849 km (0.091 R)
• M8: 7,348,696 km (0.043 R)
• M9: 8,121,668 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.2

Radius: 8.2

Gravity: 13.09 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.09 AU - 1.15 AU

Year: 818 Days

Day: 10.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,598,755 km

• M1: 102,026 km (0.112 R)
• M2: 385,963 km (0.081 R)
• M3: 791,672 km (0.109 R)
• M4: 1,072,916 km (0.117 R)
• M5: 1,361,191 km (0.087 R)
• M6: 1,675,347 km (0.103 R)
• M7: 2,008,052 km (0.057 R)
• M8: 4,731,930 km (0.074 R)
• M9: 5,267,042 km (0.112 R)
• M10: 5,883,086 km (0.113 R)
• M11: 6,953,608 km (0.119 R)
• M12: 8,917,529 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.7

Radius: 12.3

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.34 AU - 1.66 AU

Year: 1268 Days

Day: 7.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,598,755 km

• M1: 153,039 km (0.108 R)
• M2: 542,591 km (0.066 R)
• M3: 997,967 km (0.052 R)
• M4: 2,313,082 km (0.079 R)
• M5: 3,312,845 km (0.067 R)
• M6: 4,009,821 km (0.107 R)
• M7: 4,527,280 km (0.105 R)
• M8: 5,069,573 km (0.105 R)
• M9: 5,613,211 km (0.101 R)
• M10: 5,996,930 km (0.069 R)
• M11: 6,793,838 km (0.09 R)
• M12: 8,823,582 km (0.09 R)
• M13: 10,320,608 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.5

Radius: 11

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.43 AU - 1.91 AU

Year: 1490 Days

Day: 11.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,598,755 km

• M1: 138,528 km (0.104 R)
• M2: 546,032 km (0.096 R)
• M3: 1,207,404 km (0.116 R)
• M4: 1,614,759 km (0.088 R)
• M5: 2,148,674 km (0.088 R)
• M6: 2,554,982 km (0.07 R)
• M7: 3,027,113 km (0.079 R)
• M8: 3,540,682 km (0.117 R)
• M9: 4,525,784 km (0.074 R)
• M10: 5,263,900 km (0.084 R)
• M11: 6,619,556 km (0.049 R)
• M12: 7,270,905 km (0.052 R)
• M13: 8,460,807 km (0.081 R)
• M14: 9,419,131 km (0.097 R)
• M15: 9,941,377 km (0.048 R)
• M16: 10,725,868 km (0.107 R)
• M17: 11,661,752 km (0.116 R)
• M18: 12,534,357 km (0.12 R)
• M19: 13,409,205 km (0.082 R)
• M20: 13,861,589 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.7

Radius: 11.1

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.03 AU - 2.19 AU

Year: 2116 Days

Day: 7.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,598,755 km

• M1: 140,622 km (0.106 R)
• M2: 507,586 km (0.109 R)
• M3: 853,605 km (0.102 R)
• M4: 1,506,600 km (0.102 R)
• M5: 2,057,868 km (0.116 R)
• M6: 2,983,580 km (0.11 R)
• M7: 3,359,220 km (0.064 R)
• M8: 4,030,615 km (0.081 R)
• M9: 4,724,450 km (0.105 R)
• M10: 5,191,645 km (0.05 R)
• M11: 6,141,441 km (0.081 R)
• M12: 7,613,185 km (0.088 R)
• M13: 8,576,296 km (0.065 R)
• M14: 9,137,887 km (0.074 R)
• M15: 10,261,666 km (0.06 R)
• M16: 12,076,139 km (0.034 R)
• M17: 12,655,681 km (0.12 R)
• M18: 13,080,838 km (0.071 R)
• M19: 14,185,917 km (0.076 R)
• M20: 17,401,374 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.1

Radius: 8.2

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.18 AU - 2.46 AU

Year: 2439 Days

Day: 11.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,598,755 km

• M1: 102,026 km (0.104 R)
• M2: 371,302 km (0.055 R)
• M3: 638,035 km (0.074 R)
• M4: 1,054,515 km (0.062 R)
• M5: 1,507,348 km (0.104 R)
• M6: 2,244,566 km (0.034 R)
• M7: 2,773,395 km (0.06 R)
• M8: 3,873,538 km (0.087 R)
• M9: 5,897,597 km (0.059 R)
• M10: 6,322,754 km (0.108 R)
• M11: 7,290,652 km (0.075 R)
• M12: 10,244,013 km (0.027 R)
• M13: 11,383,500 km (0.077 R)
• M14: 12,003,584 km (0.058 R)
• M15: 13,481,162 km (0.099 R)
• M16: 13,825,386 km (0.048 R)
• M17: 14,531,189 km (0.068 R)
• M18: 15,871,586 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.1

Radius: 13.8

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.28 AU - 2.82 AU

Year: 2811 Days

Day: 6 Hours

Environment

Temp: -209 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,598,755 km

• M1: 171,589 km (0.079 R)
• M2: 668,254 km (0.113 R)
• M3: 1,120,787 km (0.077 R)
• M4: 1,553,275 km (0.077 R)
• M5: 2,035,129 km (0.113 R)
• M6: 3,060,922 km (0.096 R)
• M7: 4,166,002 km (0.09 R)
• M8: 4,751,827 km (0.108 R)
• M9: 5,392,405 km (0.08 R)
• M10: 6,374,066 km (0.089 R)
• M11: 6,907,981 km (0.076 R)
• M12: 8,202,152 km (0.083 R)
• M13: 10,724,073 km (0.066 R)
• M14: 11,524,721 km (0.067 R)
• M15: 12,006,127 km (0.073 R)
• M16: 12,869,606 km (0.047 R)
• M17: 15,028,004 km (0.117 R)
• M18: 16,965,895 km (0.072 R)
• M19: 17,475,275 km (0.12 R)
• M20: 19,308,747 km (0.108 R)
• M21: 20,177,611 km (0.112 R)
• M22: 21,202,357 km (0.057 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 521

Radius: 6.5

Gravity: 12.33 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 7.12 AU - 7.44 AU

Year: 13558 Days

Day: 18.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 53,598,755 km

• M1: 80,783 km (0.051 R)
• M2: 283,937 km (0.116 R)
• M3: 605,273 km (0.078 R)
• M4: 867,817 km (0.098 R)
• M5: 2,994,351 km (0.098 R)
• M6: 3,715,562 km (0.086 R)
• M7: 6,532,640 km (0.098 R)
• M8: 9,131,304 km (0.099 R)
• M9: 9,836,359 km (0.096 R)
• M10: 15,258,235 km (0.103 R)
• M11: 16,540,139 km (0.054 R)
• M12: 18,358,950 km (0.116 R)
• M13: 22,299,358 km (0.06 R)
• M14: 27,174,902 km (0.093 R)
• M15: 28,312,295 km (0.047 R)
• M16: 29,481,103 km (0.114 R)
• M17: 30,571,222 km (0.11 R)
• M18: 31,014,631 km (0.097 R)
• M19: 32,600,817 km (0.114 R)
• M20: 33,884,217 km (0.049 R)
• M21: 35,810,888 km (0.081 R)
• M22: 42,713,034 km (0.086 R)
• M23: 45,676,568 km (0.117 R)
• M24: 47,875,358 km (0.088 R)
• M25: 49,684,445 km (0.097 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 10,600 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit