🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.6

Radius: 12.5

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.73 AU - 0.81 AU

Year: 451 Days

Day: 8.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 45,614,951 km

• M1: 155,432 km (0.069 R)
• M2: 544,686 km (0.116 R)
• M3: 1,090,120 km (0.075 R)
• M4: 1,574,518 km (0.078 R)
• M5: 2,955,306 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.1

Radius: 12.5

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.77 AU - 0.93 AU

Year: 523 Days

Day: 9.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,614,951 km

• M1: 155,582 km (0.077 R)
• M2: 886,816 km (0.12 R)
• M3: 1,427,313 km (0.087 R)
• M4: 2,103,196 km (0.094 R)
• M5: 3,087,850 km (0.058 R)
• M6: 3,477,702 km (0.042 R)
• M7: 3,956,116 km (0.117 R)
• M8: 4,756,464 km (0.109 R)
• M9: 5,263,003 km (0.111 R)
• M10: 5,661,980 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.6

Radius: 10.2

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.15 AU - 1.27 AU

Year: 888 Days

Day: 14.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,614,951 km

• M1: 128,804 km (0.113 R)
• M2: 449,841 km (0.116 R)
• M3: 1,013,077 km (0.036 R)
• M4: 1,423,723 km (0.109 R)
• M5: 1,985,613 km (0.114 R)
• M6: 2,463,727 km (0.059 R)
• M7: 2,866,445 km (0.073 R)
• M8: 3,231,613 km (0.076 R)
• M9: 4,332,205 km (0.111 R)
• M10: 4,876,143 km (0.087 R)
• M11: 5,301,599 km (0.086 R)
• M12: 5,683,223 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.7

Radius: 13.8

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.95 AU - 1.47 AU

Year: 888 Days

Day: 6.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,614,951 km

• M1: 171,589 km (0.089 R)
• M2: 715,377 km (0.079 R)
• M3: 1,210,396 km (0.032 R)
• M4: 1,957,937 km (0.089 R)
• M5: 2,516,535 km (0.089 R)
• M6: 2,962,786 km (0.068 R)
• M7: 4,426,751 km (0.098 R)
• M8: 6,329,636 km (0.091 R)
• M9: 7,035,588 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.7

Radius: 9.4

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.81 AU - 2.05 AU

Year: 1788 Days

Day: 12 Hours

Environment

Temp: -202 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,614,951 km

• M1: 116,986 km (0.089 R)
• M2: 414,386 km (0.095 R)
• M3: 981,661 km (0.111 R)
• M4: 2,013,587 km (0.094 R)
• M5: 2,559,769 km (0.077 R)
• M6: 3,172,522 km (0.075 R)
• M7: 3,649,290 km (0.057 R)
• M8: 5,781,359 km (0.098 R)
• M9: 7,847,755 km (0.08 R)
• M10: 8,838,990 km (0.106 R)
• M11: 11,768,864 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.4

Radius: 12.7

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.54 AU - 3.7 AU

Year: 3675 Days

Day: 12.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,614,951 km

• M1: 159,322 km (0.071 R)
• M2: 603,627 km (0.098 R)
• M3: 1,250,489 km (0.098 R)
• M4: 1,819,559 km (0.116 R)
• M5: 2,829,494 km (0.062 R)
• M6: 3,488,622 km (0.109 R)
• M7: 4,586,521 km (0.106 R)
• M8: 5,604,834 km (0.09 R)
• M9: 6,267,702 km (0.057 R)
• M10: 7,013,298 km (0.097 R)
• M11: 8,087,111 km (0.106 R)
• M12: 9,493,930 km (0.06 R)
• M13: 11,923,848 km (0.087 R)
• M14: 12,556,497 km (0.117 R)
• M15: 12,974,923 km (0.066 R)
• M16: 15,524,818 km (0.055 R)
• M17: 16,279,539 km (0.101 R)
• M18: 18,932,658 km (0.081 R)
• M19: 22,948,164 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.7

Radius: 7.8

Gravity: 12.86 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 8.68 AU - 9.82 AU

Year: 18760 Days

Day: 20.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 45,614,951 km

• M1: 124,316 km (0.06 R)
• M2: 743,352 km (0.103 R)
• M3: 1,035,367 km (0.1 R)
• M4: 2,214,796 km (0.113 R)
• M5: 3,115,675 km (0.068 R)
• M6: 3,361,015 km (0.073 R)
• M7: 3,738,301 km (0.102 R)
• M8: 6,023,857 km (0.116 R)
• M9: 6,715,448 km (0.113 R)
• M10: 8,102,221 km (0.115 R)
• M11: 8,675,031 km (0.107 R)
• M12: 9,556,013 km (0.091 R)
• M13: 10,136,153 km (0.117 R)
• M14: 12,218,107 km (0.112 R)
• M15: 12,488,430 km (0.097 R)
• M16: 16,052,151 km (0.033 R)
• M17: 16,705,594 km (0.113 R)
• M18: 17,461,662 km (0.111 R)
• M19: 22,585,838 km (0.101 R)
• M20: 28,393,377 km (0.119 R)
• M21: 34,851,816 km (0.107 R)
• M22: 39,220,822 km (0.076 R)
• M23: 44,736,495 km (0.113 R)
• M24: 51,096,649 km (0.061 R)
• M25: 54,857,539 km (0.035 R)
• M26: 56,150,962 km (0.083 R)
• M27: 56,899,251 km (0.109 R)
• M28: 63,125,963 km (0.114 R)
• M29: 65,367,089 km (0.072 R)
• M30: 66,195,113 km (0.092 R)
• M31: 67,450,090 km (0.099 R)
• M32: 72,187,555 km (0.085 R)
• M33: 74,187,828 km (0.155 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.9

Radius: 5.5

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 8.96 AU - 10.12 AU

Year: 19650 Days

Day: 21.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,614,951 km

• M1: 76,893 km (0.06 R)
• M2: 308,321 km (0.07 R)
• M3: 868,864 km (0.109 R)
• M4: 1,249,591 km (0.094 R)
• M5: 2,123,392 km (0.082 R)
• M6: 2,728,815 km (0.09 R)
• M7: 3,116,572 km (0.114 R)
• M8: 4,949,745 km (0.087 R)
• M9: 7,280,330 km (0.058 R)
• M10: 7,522,828 km (0.113 R)
• M11: 19,129,977 km (0.109 R)
• M12: 22,610,073 km (0.116 R)
• M13: 25,273,363 km (0.039 R)
• M14: 25,550,568 km (0.079 R)
• M15: 35,419,390 km (0.105 R)
• M16: 38,383,672 km (0.04 R)
• M17: 40,113,771 km (0.096 R)
• M18: 44,530,499 km (0.106 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 367 - 16,759 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit