🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.4

Radius: 8.9

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.6 AU - 0.68 AU

Year: 341 Days

Day: 10.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,309,124 km

• M1: 110,702 km (0.106 R)
• M2: 442,211 km (0.119 R)
• M3: 775,815 km (0.116 R)
• M4: 1,134,101 km (0.103 R)
• M5: 1,467,406 km (0.117 R)
• M6: 1,840,503 km (0.053 R)
• M7: 2,145,084 km (0.12 R)
• M8: 2,720,288 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.8

Radius: 10.8

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.55 AU - 0.75 AU

Year: 349 Days

Day: 13.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,309,124 km

• M1: 134,488 km (0.066 R)
• M2: 548,426 km (0.076 R)
• M3: 905,815 km (0.091 R)
• M4: 1,285,195 km (0.047 R)
• M5: 1,707,360 km (0.073 R)
• M6: 2,300,067 km (0.115 R)
• M7: 2,819,471 km (0.043 R)
• M8: 3,211,567 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.1

Radius: 12.5

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.74 AU - 0.76 AU

Year: 433 Days

Day: 7.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,309,124 km

• M1: 155,432 km (0.104 R)
• M2: 547,379 km (0.108 R)
• M3: 1,057,507 km (0.111 R)
• M4: 1,466,059 km (0.074 R)
• M5: 2,114,117 km (0.082 R)
• M6: 2,665,834 km (0.107 R)
• M7: 3,183,742 km (0.113 R)
• M8: 3,768,370 km (0.092 R)
• M9: 4,531,170 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.4

Radius: 8.6

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.89 AU - 0.93 AU

Year: 579 Days

Day: 14.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 69.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,309,124 km

• M1: 108,010 km (0.064 R)
• M2: 431,590 km (0.11 R)
• M3: 750,084 km (0.06 R)
• M4: 1,044,044 km (0.119 R)
• M5: 1,410,110 km (0.112 R)
• M6: 1,754,484 km (0.078 R)
• M7: 2,250,700 km (0.097 R)
• M8: 2,566,202 km (0.115 R)
• M9: 2,986,123 km (0.03 R)
• M10: 3,391,982 km (0.082 R)
• M11: 4,671,493 km (0.085 R)
• M12: 5,125,672 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.9

Radius: 11.7

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.52 AU - 3.72 AU

Year: 4593 Days

Day: 11.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,309,124 km

• M1: 145,559 km (0.087 R)
• M2: 622,626 km (0.096 R)
• M3: 1,533,378 km (0.087 R)
• M4: 3,246,124 km (0.09 R)
• M5: 3,631,638 km (0.097 R)
• M6: 4,156,876 km (0.086 R)
• M7: 4,804,934 km (0.071 R)
• M8: 5,334,361 km (0.098 R)
• M9: 7,223,932 km (0.106 R)
• M10: 8,880,728 km (0.081 R)
• M11: 10,904,638 km (0.108 R)
• M12: 16,848,161 km (0.102 R)
• M13: 20,567,762 km (0.077 R)
• M14: 21,560,045 km (0.026 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.7

Radius: 11.9

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.6 AU - 4.9 AU

Year: 5843 Days

Day: 13.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 27,309,124 km

• M1: 149,598 km (0.1 R)
• M2: 522,845 km (0.115 R)
• M3: 946,955 km (0.112 R)
• M4: 1,362,537 km (0.097 R)
• M5: 2,106,936 km (0.096 R)
• M6: 2,651,921 km (0.061 R)
• M7: 3,146,342 km (0.08 R)
• M8: 3,724,538 km (0.079 R)
• M9: 4,684,209 km (0.083 R)
• M10: 5,588,976 km (0.082 R)
• M11: 6,147,126 km (0.094 R)
• M12: 6,948,971 km (0.116 R)
• M13: 7,706,684 km (0.091 R)
• M14: 9,558,706 km (0.119 R)
• M15: 11,106,595 km (0.111 R)
• M16: 12,041,133 km (0.115 R)
• M17: 15,457,649 km (0.111 R)
• M18: 17,647,612 km (0.09 R)
• M19: 22,480,521 km (0.104 R)
• M20: 23,974,106 km (0.08 R)
• M21: 24,786,273 km (0.114 R)
• M22: 26,294,369 km (0.108 R)
• M23: 29,677,525 km (0.072 R)
• M24: 32,941,601 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.1

Radius: 13.3

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 4.23 AU - 4.77 AU

Year: 6366 Days

Day: 6.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 27,309,124 km

• M1: 182,509 km (0.112 R)
• M2: 649,704 km (0.079 R)
• M3: 1,120,488 km (0.066 R)
• M4: 2,396,259 km (0.101 R)
• M5: 2,852,981 km (0.059 R)
• M6: 3,604,261 km (0.073 R)
• M7: 4,233,021 km (0.077 R)
• M8: 4,771,873 km (0.079 R)
• M9: 5,298,757 km (0.067 R)
• M10: 6,839,166 km (0.061 R)
• M11: 7,957,260 km (0.086 R)
• M12: 9,836,509 km (0.103 R)
• M13: 11,259,783 km (0.114 R)
• M14: 11,747,023 km (0.117 R)
• M15: 12,504,288 km (0.097 R)
• M16: 14,914,609 km (0.106 R)
• M17: 21,368,410 km (0.045 R)
• M18: 22,959,982 km (0.112 R)
• M19: 23,428,822 km (0.082 R)
• M20: 25,618,486 km (0.116 R)
• M21: 29,108,754 km (0.085 R)
• M22: 30,401,728 km (0.069 R)
• M23: 31,348,533 km (0.116 R)
• M24: 32,706,882 km (0.059 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.5

Radius: 14.3

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 5.03 AU - 5.45 AU

Year: 7999 Days

Day: 7.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,309,124 km

• M1: 178,021 km (0.036 R)
• M2: 749,485 km (0.046 R)
• M3: 1,243,757 km (0.101 R)
• M4: 1,785,151 km (0.045 R)
• M5: 2,867,342 km (0.1 R)
• M6: 3,489,819 km (0.104 R)
• M7: 4,683,012 km (0.109 R)
• M8: 5,374,304 km (0.108 R)
• M9: 6,697,197 km (0.104 R)
• M10: 7,608,398 km (0.054 R)
• M11: 10,762,819 km (0.108 R)
• M12: 14,212,994 km (0.066 R)
• M13: 14,703,227 km (0.061 R)
• M14: 15,153,965 km (0.116 R)
• M15: 19,159,298 km (0.085 R)
• M16: 20,062,122 km (0.096 R)
• M17: 20,679,512 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59.8

Radius: 7.4

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 6.97 AU - 8.65 AU

Year: 14555 Days

Day: 18.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,309,124 km

• M1: 93,499 km (0.105 R)
• M2: 393,891 km (0.104 R)
• M3: 992,283 km (0.09 R)
• M4: 1,609,224 km (0.085 R)
• M5: 5,681,877 km (0.113 R)
• M6: 6,800,869 km (0.085 R)
• M7: 11,076,376 km (0.068 R)
• M8: 13,511,081 km (0.07 R)
• M9: 15,098,614 km (0.109 R)
• M10: 15,823,715 km (0.118 R)
• M11: 16,397,123 km (0.089 R)
• M12: 16,688,989 km (0.084 R)
• M13: 18,200,675 km (0.101 R)
• M14: 22,554,123 km (0.069 R)
• M15: 22,987,957 km (0.027 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: 231 - 12,483 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit