🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.9

Radius: 10.2

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.84 AU - 0.88 AU

Year: 561 Days

Day: 14 Hours

Environment

Temp: -173 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,026,977 km

• M1: 126,859 km (0.106 R)
• M2: 578,645 km (0.114 R)
• M3: 1,191,846 km (0.075 R)
• M4: 1,741,618 km (0.115 R)
• M5: 2,146,430 km (0.058 R)
• M6: 2,759,482 km (0.119 R)
• M7: 3,598,876 km (0.097 R)
• M8: 4,120,225 km (0.097 R)
• M9: 5,004,049 km (0.065 R)
• M10: 5,499,667 km (0.094 R)
• M11: 5,883,834 km (0.11 R)
• M12: 6,360,752 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.2

Radius: 13

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.77 AU - 1.91 AU

Year: 1754 Days

Day: 11.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,026,977 km

• M1: 161,715 km (0.11 R)
• M2: 633,996 km (0.056 R)
• M3: 1,161,179 km (0.032 R)
• M4: 1,839,455 km (0.119 R)
• M5: 2,508,607 km (0.095 R)
• M6: 3,021,129 km (0.063 R)
• M7: 3,501,338 km (0.11 R)
• M8: 6,743,722 km (0.084 R)
• M9: 7,371,585 km (0.03 R)
• M10: 8,556,101 km (0.093 R)
• M11: 9,129,060 km (0.08 R)
• M12: 14,101,095 km (0.108 R)
• M13: 15,591,838 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.9

Radius: 12.4

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.14 AU - 3.6 AU

Year: 4349 Days

Day: 6.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,026,977 km

• M1: 154,535 km (0.1 R)
• M2: 955,182 km (0.052 R)
• M3: 1,381,985 km (0.054 R)
• M4: 3,638,669 km (0.066 R)
• M5: 4,127,854 km (0.074 R)
• M6: 5,644,477 km (0.083 R)
• M7: 7,034,391 km (0.039 R)
• M8: 8,614,743 km (0.118 R)

Planet 4 - Ice Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 958.1

Radius: 6

Gravity: 26.61 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 4.69 AU - 6.25 AU

Year: 8993 Days

Day: 16.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 60,026,977 km

• M1: 75,846 km (0.102 R)
• M2: 306,825 km (0.04 R)
• M3: 681,418 km (0.102 R)
• M4: 1,056,161 km (0.081 R)
• M5: 1,253,481 km (0.077 R)
• M6: 2,017,327 km (0.049 R)
• M7: 2,519,527 km (0.09 R)
• M8: 3,664,699 km (0.118 R)
• M9: 3,929,786 km (0.086 R)
• M10: 5,088,572 km (0.107 R)
• M11: 7,086,451 km (0.112 R)
• M12: 8,102,669 km (0.044 R)
• M13: 8,462,153 km (0.045 R)
• M14: 8,692,085 km (0.099 R)
• M15: 9,505,449 km (0.087 R)
• M16: 11,730,867 km (0.077 R)
• M17: 11,959,452 km (0.06 R)
• M18: 13,393,647 km (0.108 R)
• M19: 13,580,644 km (0.103 R)
• M20: 13,769,437 km (0.095 R)
• M21: 14,023,903 km (0.067 R)
• M22: 15,343,057 km (0.034 R)
• M23: 15,547,856 km (0.111 R)
• M24: 17,105,918 km (0.116 R)
• M25: 18,073,966 km (0.117 R)
• M26: 18,999,528 km (0.054 R)
• M27: 20,528,867 km (0.063 R)
• M28: 21,706,950 km (0.114 R)
• M29: 22,138,540 km (0.11 R)
• M30: 24,197,306 km (0.11 R)
• M31: 24,848,356 km (0.118 R)
• M32: 28,075,930 km (0.11 R)
• M33: 30,162,222 km (0.114 R)
• M34: 32,126,143 km (0.034 R)
• M35: 40,575,281 km (0.114 R)
• M36: 42,291,916 km (0.094 R)
• M37: 44,470,510 km (0.116 R)
• M38: 47,731,445 km (0.039 R)
• M39: 49,197,803 km (0.109 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 265.4

Radius: 3.2

Gravity: 25.92 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 6.91 AU - 8.49 AU

Year: 15019 Days

Day: 15.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,026,977 km

• M1: 50,115 km (0.097 R)
• M2: 358,885 km (0.117 R)
• M3: 575,353 km (0.071 R)
• M4: 790,176 km (0.086 R)
• M5: 1,122,283 km (0.05 R)
• M6: 1,655,600 km (0.066 R)
• M7: 3,149,634 km (0.118 R)
• M8: 3,993,665 km (0.088 R)
• M9: 4,184,552 km (0.087 R)
• M10: 6,257,679 km (0.096 R)
• M11: 8,254,511 km (0.095 R)
• M12: 10,484,118 km (0.119 R)
• M13: 12,212,572 km (0.085 R)
• M14: 12,441,157 km (0.098 R)
• M15: 15,147,233 km (0.073 R)
• M16: 17,059,094 km (0.077 R)
• M17: 18,146,671 km (0.041 R)
• M18: 23,220,731 km (0.073 R)
• M19: 25,657,381 km (0.059 R)
• M20: 27,082,002 km (0.039 R)
• M21: 29,062,378 km (0.058 R)
• M22: 30,087,722 km (0.043 R)
• M23: 38,071,013 km (0.046 R)
• M24: 39,421,732 km (0.114 R)
• M25: 42,609,962 km (0.07 R)
• M26: 43,003,703 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 452.9

Radius: 4

Gravity: 28.31 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 7.25 AU - 9.01 AU

Year: 16295 Days

Day: 15.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,026,977 km

• M1: 49,816 km (0.102 R)
• M2: 211,681 km (0.113 R)
• M3: 338,690 km (0.11 R)
• M4: 533,017 km (0.117 R)
• M5: 673,340 km (0.054 R)
• M6: 1,212,341 km (0.057 R)
• M7: 1,401,283 km (0.057 R)
• M8: 1,688,960 km (0.049 R)
• M9: 2,745,271 km (0.078 R)
• M10: 2,999,886 km (0.119 R)
• M11: 4,090,155 km (0.116 R)
• M12: 7,314,737 km (0.071 R)
• M13: 8,220,104 km (0.1 R)
• M14: 8,409,644 km (0.067 R)
• M15: 10,359,503 km (0.027 R)
• M16: 10,692,657 km (0.115 R)
• M17: 12,591,204 km (0.108 R)
• M18: 22,895,954 km (0.072 R)
• M19: 29,740,655 km (0.12 R)
• M20: 37,831,806 km (0.108 R)
• M21: 38,356,595 km (0.09 R)
• M22: 42,166,404 km (0.058 R)
• M23: 44,452,858 km (0.074 R)
• M24: 47,425,218 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425.1

Radius: 6.2

Gravity: 11.06 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 7.71 AU - 9.53 AU

Year: 17790 Days

Day: 17.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,026,977 km

• M1: 77,043 km (0.099 R)
• M2: 392,994 km (0.12 R)
• M3: 656,435 km (0.029 R)
• M4: 905,815 km (0.07 R)
• M5: 1,933,104 km (0.096 R)
• M6: 2,192,656 km (0.101 R)
• M7: 4,876,891 km (0.116 R)
• M8: 6,261,568 km (0.098 R)
• M9: 6,624,493 km (0.109 R)
• M10: 8,029,516 km (0.087 R)
• M11: 9,360,638 km (0.062 R)
• M12: 9,622,285 km (0.09 R)
• M13: 12,961,608 km (0.115 R)
• M14: 13,684,615 km (0.116 R)
• M15: 14,364,836 km (0.103 R)
• M16: 16,014,602 km (0.112 R)
• M17: 17,786,738 km (0.095 R)
• M18: 23,017,428 km (0.103 R)
• M19: 25,066,170 km (0.115 R)
• M20: 30,541,752 km (0.112 R)
• M21: 31,234,091 km (0.098 R)
• M22: 31,936,901 km (0.044 R)
• M23: 32,770,012 km (0.087 R)
• M24: 36,763,976 km (0.033 R)
• M25: 42,625,520 km (0.107 R)
• M26: 49,237,596 km (0.043 R)
• M27: 51,314,463 km (0.028 R)
• M28: 56,501,470 km (0.064 R)
• M29: 57,544,167 km (0.117 R)
• M30: 58,422,905 km (0.038 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: 457 - 14,006 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit