🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.4

Radius: 15

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.49 AU - 0.69 AU

Year: 302 Days

Day: 6.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 31,976,573 km

• M1: 186,549 km (0.106 R)
• M2: 809,025 km (0.088 R)
• M3: 1,367,325 km (0.111 R)
• M4: 1,947,465 km (0.053 R)
• M5: 2,684,235 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.1

Radius: 14.8

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.88 AU - 1 AU

Year: 608 Days

Day: 6.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,976,573 km

• M1: 193,131 km (0.05 R)
• M2: 661,073 km (0.094 R)
• M3: 1,294,171 km (0.102 R)
• M4: 1,829,582 km (0.054 R)
• M5: 2,464,475 km (0.115 R)
• M6: 3,280,981 km (0.102 R)
• M7: 3,834,642 km (0.103 R)
• M8: 5,317,606 km (0.064 R)
• M9: 6,030,440 km (0.115 R)
• M10: 6,507,807 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.9

Radius: 8.6

Gravity: 12.84 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.76 AU - 1.22 AU

Year: 657 Days

Day: 13 Hours

Environment

Temp: -179 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,976,573 km

• M1: 106,962 km (0.096 R)
• M2: 383,419 km (0.103 R)
• M3: 752,926 km (0.057 R)
• M4: 1,045,689 km (0.076 R)
• M5: 1,475,484 km (0.09 R)
• M6: 1,792,631 km (0.119 R)
• M7: 2,245,913 km (0.099 R)
• M8: 2,611,829 km (0.08 R)
• M9: 3,170,278 km (0.112 R)
• M10: 3,618,174 km (0.11 R)
• M11: 4,046,174 km (0.112 R)
• M12: 4,344,621 km (0.06 R)
• M13: 5,964,168 km (0.098 R)
• M14: 6,310,337 km (0.119 R)
• M15: 6,799,822 km (0.098 R)
• M16: 7,200,295 km (0.042 R)
• M17: 7,687,535 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.1

Radius: 14.4

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.97 AU - 1.11 AU

Year: 707 Days

Day: 9.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,976,573 km

• M1: 179,069 km (0.098 R)
• M2: 942,317 km (0.12 R)
• M3: 1,573,470 km (0.053 R)
• M4: 2,048,593 km (0.074 R)
• M5: 2,643,095 km (0.052 R)
• M6: 4,308,269 km (0.115 R)
• M7: 4,758,858 km (0.06 R)
• M8: 5,421,427 km (0.084 R)
• M9: 7,018,534 km (0.077 R)
• M10: 8,165,201 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.9

Radius: 9.7

Gravity: 9.43 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.42 AU - 2 AU

Year: 1491 Days

Day: 8.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,976,573 km

• M1: 136,583 km (0.07 R)
• M2: 483,351 km (0.109 R)
• M3: 806,033 km (0.075 R)
• M4: 1,279,062 km (0.06 R)
• M5: 1,813,874 km (0.102 R)
• M6: 2,169,319 km (0.073 R)
• M7: 2,720,736 km (0.097 R)
• M8: 3,037,585 km (0.084 R)
• M9: 3,940,109 km (0.107 R)
• M10: 5,719,127 km (0.091 R)
• M11: 6,072,776 km (0.118 R)
• M12: 7,892,484 km (0.089 R)
• M13: 8,942,811 km (0.064 R)
• M14: 9,881,538 km (0.085 R)
• M15: 10,392,115 km (0.101 R)
• M16: 11,915,919 km (0.084 R)
• M17: 12,652,240 km (0.047 R)
• M18: 13,092,058 km (0.112 R)
• M19: 13,875,950 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.7

Radius: 12.4

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.36 AU - 3.22 AU

Year: 3108 Days

Day: 10.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,976,573 km

• M1: 154,235 km (0.107 R)
• M2: 580,589 km (0.043 R)
• M3: 988,692 km (0.114 R)
• M4: 1,524,103 km (0.065 R)
• M5: 1,935,048 km (0.116 R)
• M6: 2,348,537 km (0.109 R)
• M7: 2,805,409 km (0.102 R)
• M8: 3,507,621 km (0.096 R)
• M9: 3,962,548 km (0.111 R)
• M10: 4,707,546 km (0.073 R)
• M11: 5,570,127 km (0.11 R)
• M12: 6,800,570 km (0.059 R)
• M13: 7,673,174 km (0.07 R)
• M14: 9,156,886 km (0.084 R)
• M15: 13,146,960 km (0.101 R)
• M16: 16,265,328 km (0.094 R)
• M17: 17,938,430 km (0.088 R)
• M18: 18,579,756 km (0.099 R)
• M19: 20,156,668 km (0.113 R)
• M20: 20,596,036 km (0.108 R)
• M21: 21,493,923 km (0.046 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.8

Radius: 12

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.78 AU - 5.3 AU

Year: 6451 Days

Day: 10.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,976,573 km

• M1: 169,644 km (0.044 R)
• M2: 2,877,964 km (0.109 R)
• M3: 4,265,035 km (0.1 R)
• M4: 5,146,915 km (0.03 R)
• M5: 7,271,354 km (0.107 R)
• M6: 10,794,683 km (0.111 R)
• M7: 11,504,974 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.5

Radius: 14.5

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 4.76 AU - 6.56 AU

Year: 8980 Days

Day: 8.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,976,573 km

• M1: 190,737 km (0.081 R)
• M2: 693,237 km (0.044 R)
• M3: 1,474,586 km (0.091 R)
• M4: 1,974,692 km (0.063 R)
• M5: 2,589,390 km (0.102 R)
• M6: 4,185,449 km (0.09 R)
• M7: 4,960,366 km (0.117 R)
• M8: 6,014,732 km (0.113 R)
• M9: 6,595,621 km (0.066 R)
• M10: 8,527,228 km (0.105 R)
• M11: 9,346,277 km (0.072 R)
• M12: 13,752,383 km (0.112 R)
• M13: 15,704,934 km (0.084 R)
• M14: 16,374,534 km (0.07 R)
• M15: 18,231,493 km (0.117 R)
• M16: 20,799,938 km (0.119 R)
• M17: 21,459,515 km (0.044 R)
• M18: 23,130,823 km (0.073 R)
• M19: 29,850,011 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 165

Radius: 5

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 6.37 AU - 6.67 AU

Year: 11102 Days

Day: 18.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 31,976,573 km

• M1: 62,233 km (0.069 R)
• M2: 239,207 km (0.116 R)
• M3: 420,819 km (0.115 R)
• M4: 597,643 km (0.092 R)
• M5: 881,431 km (0.098 R)
• M6: 1,731,745 km (0.118 R)
• M7: 2,229,756 km (0.102 R)
• M8: 3,048,655 km (0.05 R)
• M9: 3,270,957 km (0.083 R)
• M10: 3,439,554 km (0.119 R)
• M11: 3,839,878 km (0.107 R)
• M12: 4,027,623 km (0.031 R)
• M13: 4,497,959 km (0.027 R)
• M14: 5,818,310 km (0.08 R)
• M15: 6,003,662 km (0.064 R)
• M16: 10,052,827 km (0.076 R)
• M17: 11,533,098 km (0.082 R)
• M18: 12,173,826 km (0.062 R)
• M19: 12,426,497 km (0.114 R)
• M20: 12,942,310 km (0.113 R)
• M21: 15,324,058 km (0.095 R)
• M22: 16,525,179 km (0.095 R)
• M23: 23,250,351 km (0.094 R)
• M24: 28,652,480 km (0.057 R)
• M25: 30,748,047 km (0.113 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 520 - 13,678 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit