🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.8

Radius: 13.9

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.65 AU - 0.87 AU

Year: 435 Days

Day: 9.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 36,657,082 km

• M1: 173,234 km (0.064 R)
• M2: 693,985 km (0.048 R)
• M3: 1,341,594 km (0.098 R)
• M4: 1,940,135 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.3

Radius: 14.7

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.63 AU - 1.03 AU

Year: 496 Days

Day: 11.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,657,082 km

• M1: 182,809 km (0.078 R)
• M2: 656,286 km (0.054 R)
• M3: 1,147,266 km (0.027 R)
• M4: 1,630,018 km (0.117 R)
• M5: 2,477,939 km (0.107 R)
• M6: 3,264,824 km (0.112 R)
• M7: 4,007,877 km (0.044 R)
• M8: 4,746,740 km (0.099 R)
• M9: 5,217,525 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.5

Radius: 12.1

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.02 AU - 1.6 AU

Year: 984 Days

Day: 11.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,657,082 km

• M1: 151,543 km (0.047 R)
• M2: 725,101 km (0.079 R)
• M3: 1,231,490 km (0.089 R)
• M4: 1,945,221 km (0.114 R)
• M5: 2,735,247 km (0.084 R)
• M6: 3,124,202 km (0.12 R)
• M7: 3,509,865 km (0.065 R)
• M8: 4,179,017 km (0.042 R)
• M9: 5,439,678 km (0.069 R)
• M10: 6,769,603 km (0.108 R)
• M11: 7,331,642 km (0.031 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.1

Radius: 9.4

Gravity: 9.78 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.73 AU - 1.81 AU

Year: 1545 Days

Day: 10.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,657,082 km

• M1: 117,285 km (0.106 R)
• M2: 411,394 km (0.079 R)
• M3: 824,583 km (0.119 R)
• M4: 1,212,940 km (0.101 R)
• M5: 1,538,165 km (0.057 R)
• M6: 1,900,342 km (0.04 R)
• M7: 2,551,541 km (0.116 R)
• M8: 3,280,532 km (0.088 R)
• M9: 3,940,707 km (0.115 R)
• M10: 4,236,163 km (0.089 R)
• M11: 4,851,160 km (0.066 R)
• M12: 5,234,878 km (0.089 R)
• M13: 5,801,405 km (0.089 R)
• M14: 7,410,929 km (0.117 R)
• M15: 7,805,568 km (0.047 R)
• M16: 9,011,177 km (0.117 R)
• M17: 10,687,421 km (0.112 R)
• M18: 11,009,954 km (0.071 R)
• M19: 11,901,707 km (0.096 R)
• M20: 12,248,326 km (0.114 R)
• M21: 13,577,204 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.8

Radius: 8.3

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.81 AU - 2.07 AU

Year: 1773 Days

Day: 7.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,657,082 km

• M1: 108,010 km (0.083 R)
• M2: 425,008 km (0.115 R)
• M3: 774,019 km (0.081 R)
• M4: 1,453,792 km (0.101 R)
• M5: 1,984,266 km (0.072 R)
• M6: 3,066,008 km (0.048 R)
• M7: 3,571,649 km (0.045 R)
• M8: 4,025,679 km (0.073 R)
• M9: 4,479,858 km (0.077 R)
• M10: 6,770,800 km (0.116 R)
• M11: 7,361,113 km (0.078 R)
• M12: 8,585,422 km (0.068 R)
• M13: 11,396,515 km (0.051 R)
• M14: 11,936,564 km (0.095 R)
• M15: 12,569,063 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679

Radius: 9.3

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.95 AU - 3.69 AU

Year: 3968 Days

Day: 11.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,657,082 km

• M1: 119,230 km (0.108 R)
• M2: 531,671 km (0.034 R)
• M3: 851,810 km (0.073 R)
• M4: 1,255,425 km (0.061 R)
• M5: 1,873,564 km (0.081 R)
• M6: 3,046,860 km (0.116 R)
• M7: 4,094,344 km (0.093 R)
• M8: 4,603,725 km (0.093 R)
• M9: 5,392,554 km (0.07 R)
• M10: 7,302,770 km (0.087 R)
• M11: 7,637,570 km (0.074 R)
• M12: 9,272,824 km (0.114 R)
• M13: 11,528,461 km (0.114 R)
• M14: 12,121,915 km (0.086 R)
• M15: 12,831,608 km (0.058 R)
• M16: 15,073,930 km (0.117 R)
• M17: 15,728,122 km (0.118 R)
• M18: 16,174,671 km (0.11 R)
• M19: 16,976,516 km (0.117 R)
• M20: 19,733,904 km (0.11 R)
• M21: 21,936,433 km (0.097 R)
• M22: 23,710,664 km (0.113 R)
• M23: 24,076,581 km (0.107 R)
• M24: 24,372,186 km (0.064 R)
• M25: 24,895,030 km (0.038 R)
• M26: 25,197,218 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.7

Radius: 14.1

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.21 AU - 3.93 AU

Year: 4425 Days

Day: 14.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,657,082 km

• M1: 175,329 km (0.032 R)
• M2: 879,935 km (0.102 R)
• M3: 1,497,923 km (0.066 R)
• M4: 1,993,990 km (0.077 R)
• M5: 2,729,712 km (0.119 R)
• M6: 3,217,252 km (0.059 R)
• M7: 3,681,454 km (0.107 R)
• M8: 4,416,578 km (0.071 R)
• M9: 5,867,976 km (0.105 R)
• M10: 7,451,470 km (0.111 R)
• M11: 8,558,345 km (0.113 R)
• M12: 9,000,855 km (0.096 R)
• M13: 10,215,141 km (0.08 R)
• M14: 13,064,382 km (0.119 R)
• M15: 13,902,579 km (0.094 R)
• M16: 15,200,041 km (0.108 R)
• M17: 17,915,542 km (0.072 R)
• M18: 19,388,034 km (0.119 R)
• M19: 22,994,240 km (0.118 R)
• M20: 24,806,469 km (0.044 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.3

Radius: 14.9

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.69 AU - 5.81 AU

Year: 6791 Days

Day: 6.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,657,082 km

• M1: 185,352 km (0.09 R)
• M2: 935,585 km (0.052 R)
• M3: 1,484,160 km (0.097 R)
• M4: 2,078,064 km (0.111 R)
• M5: 3,249,864 km (0.096 R)
• M6: 4,608,811 km (0.08 R)
• M7: 5,166,961 km (0.116 R)
• M8: 6,353,122 km (0.097 R)
• M9: 6,904,091 km (0.049 R)
• M10: 7,599,871 km (0.102 R)
• M11: 8,919,623 km (0.082 R)
• M12: 11,754,653 km (0.049 R)
• M13: 13,019,503 km (0.108 R)
• M14: 13,855,156 km (0.04 R)
• M15: 15,757,144 km (0.104 R)
• M16: 17,228,140 km (0.106 R)
• M17: 21,418,526 km (0.115 R)
• M18: 25,983,505 km (0.066 R)
• M19: 33,989,534 km (0.048 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 214 - 12,667 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit