🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.4

Radius: 8.3

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.46 AU - 0.58 AU

Year: 250 Days

Day: 11.8 Hours

Environment

Temp: -136 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 54,078,226 km

• M1: 105,466 km (0.107 R)
• M2: 488,587 km (0.064 R)
• M3: 1,075,160 km (0.118 R)
• M4: 1,342,641 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.6

Radius: 13.1

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.68 AU - 0.78 AU

Year: 416 Days

Day: 10.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,078,226 km

• M1: 162,912 km (0.057 R)
• M2: 748,588 km (0.074 R)
• M3: 1,182,571 km (0.111 R)
• M4: 1,632,711 km (0.104 R)
• M5: 2,105,889 km (0.109 R)
• M6: 2,515,937 km (0.041 R)
• M7: 3,324,663 km (0.084 R)
• M8: 4,163,608 km (0.06 R)
• M9: 4,670,146 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.3

Radius: 13.3

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.76 AU - 0.82 AU

Year: 468 Days

Day: 11 Hours

Environment

Temp: -174 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,078,226 km

• M1: 165,455 km (0.111 R)
• M2: 804,089 km (0.12 R)
• M3: 1,222,663 km (0.097 R)
• M4: 1,757,476 km (0.06 R)
• M5: 2,377,260 km (0.075 R)
• M6: 2,872,429 km (0.043 R)
• M7: 3,346,654 km (0.088 R)
• M8: 4,163,458 km (0.103 R)
• M9: 5,020,505 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.9

Radius: 8.8

Gravity: 8.78 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.29 AU - 1.53 AU

Year: 1116 Days

Day: 10.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,078,226 km

• M1: 109,506 km (0.095 R)
• M2: 420,819 km (0.05 R)
• M3: 994,377 km (0.041 R)
• M4: 1,996,084 km (0.105 R)
• M5: 2,284,509 km (0.116 R)
• M6: 2,750,955 km (0.102 R)
• M7: 3,794,400 km (0.097 R)
• M8: 5,318,503 km (0.068 R)
• M9: 6,250,797 km (0.117 R)
• M10: 8,165,052 km (0.098 R)
• M11: 10,792,738 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833

Radius: 14.9

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.97 AU - 2.05 AU

Year: 1900 Days

Day: 5.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,078,226 km

• M1: 185,501 km (0.069 R)
• M2: 831,166 km (0.062 R)
• M3: 1,610,122 km (0.046 R)
• M4: 2,339,412 km (0.042 R)
• M5: 3,154,122 km (0.083 R)
• M6: 4,757,362 km (0.033 R)
• M7: 6,962,883 km (0.104 R)
• M8: 9,173,042 km (0.12 R)
• M9: 9,957,683 km (0.078 R)
• M10: 11,818,082 km (0.082 R)
• M11: 12,337,636 km (0.059 R)
• M12: 14,121,740 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.8

Radius: 8.4

Gravity: 13.74 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.66 AU - 3.28 AU

Year: 3413 Days

Day: 9.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,078,226 km

• M1: 104,419 km (0.116 R)
• M2: 461,958 km (0.083 R)
• M3: 970,441 km (0.064 R)
• M4: 1,398,740 km (0.069 R)
• M5: 1,843,794 km (0.118 R)
• M6: 2,114,416 km (0.087 R)
• M7: 2,719,988 km (0.069 R)
• M8: 4,902,472 km (0.098 R)
• M9: 5,509,241 km (0.032 R)
• M10: 6,254,388 km (0.074 R)
• M11: 6,620,155 km (0.059 R)
• M12: 7,294,841 km (0.109 R)
• M13: 7,563,668 km (0.084 R)
• M14: 8,556,998 km (0.119 R)
• M15: 9,085,079 km (0.066 R)
• M16: 11,062,015 km (0.111 R)
• M17: 11,462,338 km (0.072 R)
• M18: 12,721,504 km (0.117 R)
• M19: 13,359,688 km (0.095 R)
• M20: 14,540,614 km (0.067 R)
• M21: 17,524,643 km (0.101 R)
• M22: 20,826,716 km (0.106 R)
• M23: 21,643,670 km (0.066 R)
• M24: 22,270,336 km (0.075 R)
• M25: 22,837,461 km (0.111 R)
• M26: 24,297,387 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.7

Radius: 12.5

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 3.98 AU - 4.28 AU

Year: 5597 Days

Day: 8.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,078,226 km

• M1: 155,432 km (0.026 R)
• M2: 573,409 km (0.026 R)
• M3: 1,769,593 km (0.068 R)
• M4: 2,434,257 km (0.115 R)
• M5: 2,992,406 km (0.1 R)
• M6: 4,606,268 km (0.115 R)
• M7: 5,197,030 km (0.108 R)
• M8: 6,327,691 km (0.115 R)
• M9: 7,389,686 km (0.101 R)
• M10: 8,816,850 km (0.086 R)
• M11: 9,956,636 km (0.099 R)
• M12: 12,002,088 km (0.103 R)
• M13: 13,345,028 km (0.069 R)
• M14: 14,024,202 km (0.109 R)
• M15: 16,327,860 km (0.071 R)
• M16: 21,137,880 km (0.083 R)
• M17: 22,691,603 km (0.12 R)
• M18: 23,333,827 km (0.055 R)
• M19: 24,739,149 km (0.115 R)
• M20: 26,729,100 km (0.119 R)
• M21: 27,175,500 km (0.083 R)
• M22: 29,104,715 km (0.103 R)
• M23: 31,917,005 km (0.094 R)
• M24: 32,825,363 km (0.057 R)
• M25: 33,337,437 km (0.093 R)
• M26: 34,905,671 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.3

Radius: 8.8

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 4.43 AU - 5.01 AU

Year: 6838 Days

Day: 10.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,078,226 km

• M1: 109,954 km (0.104 R)
• M2: 599,588 km (0.062 R)
• M3: 1,783,955 km (0.066 R)
• M4: 2,101,700 km (0.106 R)
• M5: 5,962,373 km (0.109 R)
• M6: 7,165,289 km (0.109 R)
• M7: 11,105,847 km (0.118 R)
• M8: 12,139,119 km (0.089 R)
• M9: 15,503,426 km (0.106 R)
• M10: 15,925,441 km (0.045 R)
• M11: 20,577,187 km (0.115 R)
• M12: 21,013,714 km (0.088 R)
• M13: 22,132,107 km (0.085 R)
• M14: 23,684,185 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 752.2

Radius: 3.9

Gravity: 49.45 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 6.58 AU - 6.72 AU

Year: 11436 Days

Day: 16.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,078,226 km

• M1: 48,470 km (0.087 R)
• M2: 196,721 km (0.085 R)
• M3: 343,028 km (0.038 R)
• M4: 507,137 km (0.042 R)
• M5: 923,468 km (0.087 R)
• M6: 1,463,965 km (0.059 R)
• M7: 1,596,658 km (0.038 R)
• M8: 1,990,100 km (0.097 R)
• M9: 2,785,213 km (0.085 R)
• M10: 3,772,260 km (0.053 R)
• M11: 4,465,197 km (0.086 R)
• M12: 4,682,413 km (0.104 R)
• M13: 6,174,353 km (0.102 R)
• M14: 8,462,004 km (0.074 R)
• M15: 10,865,293 km (0.116 R)
• M16: 16,371,542 km (0.119 R)
• M17: 16,739,104 km (0.094 R)
• M18: 23,208,913 km (0.078 R)
• M19: 23,859,963 km (0.092 R)
• M20: 29,189,537 km (0.085 R)
• M21: 31,053,825 km (0.077 R)
• M22: 35,382,440 km (0.102 R)
• M23: 40,763,774 km (0.094 R)
• M24: 41,710,579 km (0.083 R)
• M25: 42,671,895 km (0.057 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 255 - 15,215 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit