🌌 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: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279

Radius: 14.4

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.74 AU - 0.76 AU

Year: 413 Days

Day: 10.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,229,320 km

• M1: 179,069 km (0.073 R)
• M2: 687,402 km (0.067 R)
• M3: 1,162,226 km (0.097 R)
• M4: 1,628,223 km (0.054 R)
• M5: 2,658,504 km (0.094 R)
• M6: 3,253,155 km (0.03 R)
• M7: 3,844,366 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735

Radius: 12.6

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1 AU - 1.02 AU

Year: 645 Days

Day: 9.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,229,320 km

• M1: 156,629 km (0.082 R)
• M2: 571,314 km (0.025 R)
• M3: 1,023,249 km (0.095 R)
• M4: 1,437,187 km (0.09 R)
• M5: 1,904,680 km (0.086 R)
• M6: 2,341,356 km (0.036 R)
• M7: 2,743,475 km (0.118 R)
• M8: 3,242,085 km (0.118 R)
• M9: 3,745,033 km (0.04 R)
• M10: 4,662,068 km (0.113 R)
• M11: 5,113,405 km (0.101 R)
• M12: 5,557,262 km (0.068 R)
• M13: 6,065,595 km (0.116 R)
• M14: 6,584,401 km (0.039 R)
• M15: 7,263,425 km (0.096 R)
• M16: 7,802,875 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.9

Radius: 14.9

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.98 AU - 1.52 AU

Year: 889 Days

Day: 5.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 64,229,320 km

• M1: 185,352 km (0.118 R)
• M2: 654,341 km (0.07 R)
• M3: 1,279,810 km (0.109 R)
• M4: 1,870,572 km (0.093 R)
• M5: 2,665,535 km (0.073 R)
• M6: 3,232,212 km (0.081 R)
• M7: 3,791,857 km (0.093 R)
• M8: 5,932,154 km (0.102 R)
• M9: 6,648,877 km (0.055 R)
• M10: 7,308,604 km (0.091 R)
• M11: 8,480,404 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.8

Radius: 14.1

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.34 AU - 1.66 AU

Year: 1168 Days

Day: 8.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,229,320 km

• M1: 175,329 km (0.088 R)
• M2: 679,623 km (0.068 R)
• M3: 1,823,149 km (0.107 R)
• M4: 2,380,551 km (0.107 R)
• M5: 3,140,957 km (0.11 R)
• M6: 3,951,329 km (0.041 R)
• M7: 4,392,493 km (0.055 R)
• M8: 4,928,352 km (0.051 R)
• M9: 5,625,628 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.3

Radius: 11.4

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.84 AU - 2.24 AU

Year: 1853 Days

Day: 8.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,229,320 km

• M1: 141,819 km (0.118 R)
• M2: 522,994 km (0.105 R)
• M3: 977,622 km (0.052 R)
• M4: 1,372,710 km (0.067 R)
• M5: 1,794,277 km (0.11 R)
• M6: 2,291,989 km (0.084 R)
• M7: 2,831,140 km (0.112 R)
• M8: 3,835,989 km (0.062 R)
• M9: 4,810,469 km (0.079 R)
• M10: 5,308,331 km (0.101 R)
• M11: 5,922,131 km (0.099 R)
• M12: 8,781,694 km (0.086 R)
• M13: 9,555,714 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.1

Radius: 13

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.48 AU - 2.52 AU

Year: 2513 Days

Day: 12 Hours

Environment

Temp: -194 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,229,320 km

• M1: 161,715 km (0.106 R)
• M2: 711,338 km (0.111 R)
• M3: 1,614,610 km (0.091 R)
• M4: 2,169,468 km (0.106 R)
• M5: 3,920,511 km (0.109 R)
• M6: 5,175,787 km (0.101 R)
• M7: 5,969,703 km (0.065 R)
• M8: 6,499,728 km (0.094 R)
• M9: 7,712,817 km (0.117 R)
• M10: 9,104,078 km (0.088 R)
• M11: 10,950,115 km (0.065 R)
• M12: 12,785,831 km (0.086 R)
• M13: 15,984,084 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.7

Radius: 8.3

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.47 AU - 2.67 AU

Year: 2620 Days

Day: 13.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,229,320 km

• M1: 103,372 km (0.055 R)
• M2: 512,672 km (0.096 R)
• M3: 1,088,923 km (0.04 R)
• M4: 1,784,852 km (0.05 R)
• M5: 2,294,532 km (0.078 R)
• M6: 4,140,719 km (0.051 R)
• M7: 5,191,046 km (0.11 R)
• M8: 6,383,341 km (0.101 R)
• M9: 6,728,314 km (0.099 R)
• M10: 7,719,101 km (0.072 R)
• M11: 9,065,781 km (0.114 R)
• M12: 9,952,298 km (0.091 R)
• M13: 11,045,708 km (0.102 R)
• M14: 15,791,102 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.4

Radius: 8.1

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 4.12 AU - 4.44 AU

Year: 5630 Days

Day: 7.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,229,320 km

• M1: 100,679 km (0.095 R)
• M2: 653,593 km (0.101 R)
• M3: 952,639 km (0.079 R)
• M4: 1,577,510 km (0.096 R)
• M5: 1,960,031 km (0.106 R)
• M6: 2,218,387 km (0.115 R)
• M7: 2,483,474 km (0.117 R)
• M8: 3,040,726 km (0.083 R)
• M9: 3,552,650 km (0.061 R)
• M10: 6,658,152 km (0.089 R)
• M11: 8,494,018 km (0.095 R)
• M12: 14,112,764 km (0.101 R)
• M13: 18,332,172 km (0.079 R)
• M14: 19,951,419 km (0.116 R)
• M15: 21,946,606 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 548.2

Radius: 4.8

Gravity: 23.79 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 8.49 AU - 9.63 AU

Year: 17339 Days

Day: 21.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 64,229,320 km

• M1: 85,720 km (0.085 R)
• M2: 280,646 km (0.043 R)
• M3: 724,502 km (0.114 R)
• M4: 957,875 km (0.081 R)
• M5: 1,898,247 km (0.062 R)
• M6: 2,604,200 km (0.075 R)
• M7: 4,197,417 km (0.118 R)
• M8: 4,547,326 km (0.105 R)
• M9: 4,779,951 km (0.036 R)
• M10: 6,764,666 km (0.117 R)
• M11: 8,622,073 km (0.092 R)
• M12: 10,333,473 km (0.078 R)
• M13: 10,619,803 km (0.075 R)
• M14: 11,756,747 km (0.099 R)
• M15: 12,775,209 km (0.101 R)
• M16: 16,258,446 km (0.099 R)
• M17: 16,567,964 km (0.112 R)
• M18: 20,325,863 km (0.078 R)
• M19: 23,221,329 km (0.092 R)
• M20: 24,010,907 km (0.12 R)
• M21: 31,938,697 km (0.119 R)
• M22: 38,776,516 km (0.112 R)
• M23: 47,781,261 km (0.048 R)
• M24: 48,416,004 km (0.055 R)
• M25: 50,518,154 km (0.086 R)
• M26: 58,806,923 km (0.071 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 369 - 15,244 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit