🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.1

Radius: 14.2

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.58 AU - 0.62 AU

Year: 310 Days

Day: 5.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,346,282 km

• M1: 176,525 km (0.083 R)
• M2: 744,399 km (0.104 R)
• M3: 1,364,632 km (0.114 R)
• M4: 1,913,058 km (0.104 R)
• M5: 2,591,035 km (0.119 R)
• M6: 3,384,053 km (0.095 R)
• M7: 4,101,824 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.2

Radius: 11.3

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.96 AU - 1.2 AU

Year: 748 Days

Day: 10 Hours

Environment

Temp: -184 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,346,282 km

• M1: 140,472 km (0.116 R)
• M2: 495,019 km (0.09 R)
• M3: 897,438 km (0.11 R)
• M4: 1,316,760 km (0.075 R)
• M5: 1,704,817 km (0.088 R)
• M6: 2,178,145 km (0.119 R)
• M7: 2,895,317 km (0.068 R)
• M8: 3,715,862 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.5

Radius: 11.3

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.18 AU - 1.5 AU

Year: 1034 Days

Day: 9.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,346,282 km

• M1: 140,472 km (0.097 R)
• M2: 512,373 km (0.047 R)
• M3: 958,773 km (0.059 R)
• M4: 1,387,969 km (0.108 R)
• M5: 1,906,924 km (0.08 R)
• M6: 3,198,402 km (0.083 R)
• M7: 3,822,226 km (0.091 R)
• M8: 4,437,372 km (0.112 R)
• M9: 5,432,647 km (0.119 R)
• M10: 5,972,545 km (0.105 R)
• M11: 6,593,676 km (0.066 R)
• M12: 6,967,820 km (0.11 R)
• M13: 7,605,855 km (0.118 R)
• M14: 8,202,451 km (0.108 R)
• M15: 8,635,687 km (0.094 R)
• M16: 9,055,758 km (0.077 R)
• M17: 9,666,715 km (0.075 R)
• M18: 10,242,966 km (0.107 R)
• M19: 10,842,106 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.1

Radius: 13.1

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.37 AU - 1.47 AU

Year: 1128 Days

Day: 8.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 59,346,282 km

• M1: 162,912 km (0.069 R)
• M2: 588,668 km (0.059 R)
• M3: 1,099,544 km (0.093 R)
• M4: 1,701,825 km (0.044 R)
• M5: 2,439,044 km (0.096 R)
• M6: 2,908,183 km (0.111 R)
• M7: 3,643,307 km (0.083 R)
• M8: 5,135,097 km (0.105 R)
• M9: 5,768,195 km (0.115 R)
• M10: 6,255,136 km (0.108 R)
• M11: 6,769,304 km (0.071 R)
• M12: 7,507,120 km (0.064 R)
• M13: 7,985,385 km (0.114 R)
• M14: 9,199,970 km (0.112 R)
• M15: 10,257,627 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.3

Radius: 11.3

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.79 AU - 2.17 AU

Year: 1858 Days

Day: 14.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,346,282 km

• M1: 140,472 km (0.084 R)
• M2: 690,544 km (0.101 R)
• M3: 1,179,579 km (0.111 R)
• M4: 1,626,129 km (0.084 R)
• M5: 3,080,519 km (0.063 R)
• M6: 3,586,759 km (0.111 R)
• M7: 4,224,644 km (0.098 R)
• M8: 5,378,492 km (0.109 R)
• M9: 5,774,627 km (0.079 R)
• M10: 8,238,355 km (0.098 R)
• M11: 9,787,291 km (0.078 R)
• M12: 11,033,292 km (0.033 R)
• M13: 11,636,919 km (0.089 R)
• M14: 12,951,436 km (0.067 R)
• M15: 13,368,664 km (0.086 R)
• M16: 15,638,213 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.8

Radius: 14.2

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.96 AU - 5.64 AU

Year: 7013 Days

Day: 6.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,346,282 km

• M1: 176,675 km (0.112 R)
• M2: 712,684 km (0.11 R)
• M3: 1,573,171 km (0.053 R)
• M4: 2,772,348 km (0.035 R)
• M5: 3,610,545 km (0.113 R)
• M6: 5,763,258 km (0.109 R)
• M7: 8,144,706 km (0.113 R)
• M8: 9,988,949 km (0.103 R)
• M9: 10,853,026 km (0.092 R)
• M10: 13,642,428 km (0.112 R)
• M11: 20,666,796 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 278.8

Radius: 7.3

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 5.47 AU - 7.19 AU

Year: 10620 Days

Day: 17.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,346,282 km

• M1: 90,806 km (0.086 R)
• M2: 381,475 km (0.083 R)
• M3: 1,200,373 km (0.105 R)
• M4: 1,502,561 km (0.114 R)
• M5: 3,751,765 km (0.109 R)
• M6: 5,898,943 km (0.066 R)
• M7: 6,499,279 km (0.082 R)
• M8: 7,666,292 km (0.08 R)
• M9: 8,218,458 km (0.094 R)
• M10: 12,905,958 km (0.09 R)
• M11: 13,181,218 km (0.085 R)
• M12: 13,858,298 km (0.034 R)
• M13: 16,028,365 km (0.117 R)
• M14: 17,933,643 km (0.11 R)
• M15: 28,254,849 km (0.093 R)
• M16: 32,521,231 km (0.109 R)
• M17: 33,134,432 km (0.114 R)
• M18: 35,234,038 km (0.115 R)
• M19: 36,425,885 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 491.5

Radius: 4.1

Gravity: 29.24 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 7.43 AU - 9.39 AU

Year: 16264 Days

Day: 17.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,346,282 km

• M1: 136,583 km (0.091 R)
• M2: 532,568 km (0.037 R)
• M3: 1,057,507 km (0.108 R)
• M4: 1,380,788 km (0.059 R)
• M5: 1,939,836 km (0.051 R)
• M6: 3,152,925 km (0.071 R)
• M7: 4,412,688 km (0.118 R)
• M8: 4,999,411 km (0.054 R)
• M9: 10,520,021 km (0.092 R)
• M10: 10,802,462 km (0.057 R)
• M11: 11,032,095 km (0.1 R)
• M12: 13,978,575 km (0.03 R)
• M13: 22,182,821 km (0.038 R)
• M14: 23,023,262 km (0.028 R)
• M15: 24,569,206 km (0.112 R)
• M16: 26,493,334 km (0.06 R)
• M17: 32,505,822 km (0.065 R)
• M18: 33,104,662 km (0.079 R)
• M19: 35,195,592 km (0.103 R)
• M20: 36,852,687 km (0.064 R)
• M21: 47,132,754 km (0.082 R)
• M22: 54,840,485 km (0.066 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 19,080 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit