🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.9

Radius: 8.2

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.62 AU - 0.78 AU

Year: 378 Days

Day: 6.7 Hours

Environment

Temp: -132 °C

Axial Tilt: 59.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 23,870,727 km

• M1: 102,026 km (0.044 R)
• M2: 427,700 km (0.078 R)
• M3: 728,093 km (0.091 R)
• M4: 1,206,058 km (0.114 R)
• M5: 1,578,108 km (0.083 R)
• M6: 2,089,733 km (0.072 R)
• M7: 2,571,737 km (0.083 R)
• M8: 2,920,749 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.8

Radius: 11.4

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.82 AU - 0.9 AU

Year: 515 Days

Day: 11.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,870,727 km

• M1: 143,016 km (0.093 R)
• M2: 760,256 km (0.104 R)
• M3: 1,115,851 km (0.086 R)
• M4: 1,477,279 km (0.118 R)
• M5: 1,894,358 km (0.047 R)
• M6: 2,261,022 km (0.109 R)
• M7: 2,950,369 km (0.104 R)
• M8: 3,583,767 km (0.116 R)
• M9: 4,537,453 km (0.035 R)
• M10: 5,284,246 km (0.091 R)
• M11: 5,687,412 km (0.107 R)
• M12: 6,275,331 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.9

Radius: 13

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.73 AU - 2.13 AU

Year: 1731 Days

Day: 13.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 23,870,727 km

• M1: 161,715 km (0.093 R)
• M2: 605,123 km (0.061 R)
• M3: 1,018,761 km (0.085 R)
• M4: 2,146,430 km (0.12 R)
• M5: 3,006,319 km (0.101 R)
• M6: 3,508,968 km (0.115 R)
• M7: 4,000,696 km (0.116 R)
• M8: 4,466,544 km (0.115 R)
• M9: 5,223,359 km (0.105 R)
• M10: 5,889,219 km (0.089 R)
• M11: 6,333,525 km (0.119 R)
• M12: 6,993,401 km (0.096 R)
• M13: 8,042,232 km (0.108 R)
• M14: 9,459,821 km (0.084 R)
• M15: 10,386,879 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.8

Radius: 10.7

Gravity: 8.53 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.69 AU - 2.17 AU

Year: 1731 Days

Day: 9 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 23,870,727 km

• M1: 133,142 km (0.066 R)
• M2: 475,123 km (0.112 R)
• M3: 1,173,296 km (0.057 R)
• M4: 1,608,028 km (0.117 R)
• M5: 2,018,075 km (0.037 R)
• M6: 2,765,616 km (0.099 R)
• M7: 3,652,881 km (0.105 R)
• M8: 4,076,243 km (0.108 R)
• M9: 5,246,248 km (0.11 R)
• M10: 5,811,279 km (0.116 R)
• M11: 6,159,244 km (0.073 R)
• M12: 7,723,140 km (0.044 R)
• M13: 8,581,682 km (0.064 R)
• M14: 8,935,930 km (0.116 R)
• M15: 11,194,708 km (0.119 R)
• M16: 14,842,353 km (0.051 R)
• M17: 15,495,347 km (0.115 R)
• M18: 16,264,879 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.1

Radius: 11.4

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 4.45 AU - 6.15 AU

Year: 7878 Days

Day: 14.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 23,870,727 km

• M1: 142,118 km (0.113 R)
• M2: 674,537 km (0.092 R)
• M3: 1,241,064 km (0.079 R)
• M4: 1,926,222 km (0.064 R)
• M5: 2,419,895 km (0.062 R)
• M6: 4,210,432 km (0.092 R)
• M7: 5,130,459 km (0.085 R)
• M8: 6,148,622 km (0.069 R)
• M9: 6,689,568 km (0.047 R)
• M10: 7,227,522 km (0.088 R)
• M11: 7,757,846 km (0.082 R)
• M12: 8,163,107 km (0.118 R)
• M13: 8,660,370 km (0.083 R)
• M14: 9,300,051 km (0.102 R)
• M15: 12,129,395 km (0.052 R)
• M16: 17,287,680 km (0.107 R)
• M17: 17,726,749 km (0.093 R)
• M18: 21,154,037 km (0.102 R)
• M19: 22,910,316 km (0.048 R)
• M20: 23,901,252 km (0.087 R)
• M21: 25,481,155 km (0.069 R)
• M22: 25,886,715 km (0.058 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 220.8

Radius: 6.1

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 7.33 AU - 7.97 AU

Year: 13662 Days

Day: 18.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 23,870,727 km

• M1: 76,893 km (0.084 R)
• M2: 620,382 km (0.116 R)
• M3: 5,339,447 km (0.106 R)
• M4: 5,886,826 km (0.119 R)
• M5: 7,245,025 km (0.038 R)
• M6: 9,333,860 km (0.097 R)
• M7: 12,114,884 km (0.117 R)
• M8: 19,168,723 km (0.112 R)
• M9: 21,619,585 km (0.092 R)
• M10: 24,014,348 km (0.081 R)
• M11: 24,792,107 km (0.076 R)
• M12: 38,089,413 km (0.089 R)
• M13: 38,439,472 km (0.087 R)
• M14: 39,502,963 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 15

Radius: 5.5

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 8.47 AU - 13.65 AU

Year: 23749 Days

Day: 15.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 171.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,870,727 km

• M1: 71,059 km (0.1 R)
• M2: 264,639 km (0.099 R)
• M3: 585,376 km (0.114 R)
• M4: 1,934,600 km (0.08 R)
• M5: 7,291,550 km (0.104 R)
• M6: 8,093,394 km (0.082 R)
• M7: 8,267,676 km (0.063 R)
• M8: 8,768,829 km (0.104 R)
• M9: 16,511,267 km (0.095 R)
• M10: 16,735,364 km (0.087 R)
• M11: 20,283,227 km (0.112 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 240 - 10,268 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit