🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.55 AU - 0.57 AU

Year: 275 Days

Day: 18.4 Hours

Environment

Temp: -122 °C

Axial Tilt: 49 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.1

Radius: 11.5

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.7 AU - 0.76 AU

Year: 409 Days

Day: 7.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 26,256,133 km

• M1: 143,016 km (0.119 R)
• M2: 614,249 km (0.061 R)
• M3: 974,630 km (0.067 R)
• M4: 1,355,656 km (0.094 R)
• M5: 1,723,068 km (0.111 R)
• M6: 2,100,803 km (0.111 R)
• M7: 2,470,310 km (0.106 R)
• M8: 3,166,389 km (0.06 R)
• M9: 3,561,327 km (0.088 R)
• M10: 4,014,608 km (0.118 R)
• M11: 5,143,175 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.2

Radius: 11.9

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.73 AU - 0.99 AU

Year: 523 Days

Day: 14.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 26,256,133 km

• M1: 147,952 km (0.114 R)
• M2: 636,090 km (0.041 R)
• M3: 1,012,778 km (0.067 R)
• M4: 1,396,347 km (0.051 R)
• M5: 1,950,307 km (0.1 R)
• M6: 2,361,402 km (0.074 R)
• M7: 3,121,958 km (0.082 R)
• M8: 3,529,463 km (0.111 R)
• M9: 3,972,871 km (0.093 R)
• M10: 4,382,320 km (0.035 R)
• M11: 5,003,151 km (0.068 R)
• M12: 5,749,794 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.3

Radius: 9.1

Gravity: 8.41 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.82 AU - 1.02 AU

Year: 579 Days

Day: 6.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,256,133 km

• M1: 113,395 km (0.078 R)
• M2: 441,613 km (0.104 R)
• M3: 738,714 km (0.082 R)
• M4: 1,049,279 km (0.103 R)
• M5: 1,448,706 km (0.057 R)
• M6: 1,930,860 km (0.073 R)
• M7: 2,475,845 km (0.058 R)
• M8: 3,913,929 km (0.095 R)
• M9: 4,335,795 km (0.119 R)
• M10: 4,934,486 km (0.116 R)
• M11: 6,009,496 km (0.105 R)
• M12: 6,315,723 km (0.113 R)
• M13: 6,774,240 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.1

Radius: 13.2

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1 AU - 1.5 AU

Year: 917 Days

Day: 12.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,256,133 km

• M1: 164,558 km (0.097 R)
• M2: 579,542 km (0.082 R)
• M3: 1,117,197 km (0.117 R)
• M4: 1,588,879 km (0.086 R)
• M5: 2,263,865 km (0.117 R)
• M6: 3,062,119 km (0.112 R)
• M7: 3,473,812 km (0.117 R)
• M8: 4,238,108 km (0.096 R)
• M9: 5,307,732 km (0.118 R)
• M10: 5,733,488 km (0.084 R)
• M11: 6,953,608 km (0.098 R)
• M12: 7,396,867 km (0.113 R)
• M13: 8,145,305 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.3

Radius: 12.6

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.02 AU - 2.62 AU

Year: 2318 Days

Day: 5.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 143.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 26,256,133 km

• M1: 156,629 km (0.11 R)
• M2: 754,272 km (0.06 R)
• M3: 1,228,348 km (0.102 R)
• M4: 1,748,650 km (0.085 R)
• M5: 2,256,085 km (0.094 R)
• M6: 2,800,771 km (0.102 R)
• M7: 3,195,261 km (0.097 R)
• M8: 3,645,102 km (0.108 R)
• M9: 5,737,378 km (0.1 R)
• M10: 6,567,945 km (0.09 R)
• M11: 7,329,697 km (0.059 R)
• M12: 7,993,313 km (0.118 R)
• M13: 8,468,436 km (0.112 R)
• M14: 9,199,521 km (0.113 R)
• M15: 14,500,821 km (0.118 R)
• M16: 15,645,245 km (0.105 R)
• M17: 16,189,631 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.1

Radius: 10.5

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.25 AU - 3.43 AU

Year: 3140 Days

Day: 12 Hours

Environment

Temp: -196 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 26,256,133 km

• M1: 130,599 km (0.116 R)
• M2: 669,450 km (0.099 R)
• M3: 1,143,676 km (0.054 R)
• M4: 1,507,348 km (0.12 R)
• M5: 2,065,947 km (0.102 R)
• M6: 2,583,406 km (0.098 R)
• M7: 3,387,793 km (0.106 R)
• M8: 4,351,204 km (0.061 R)
• M9: 5,155,442 km (0.106 R)
• M10: 5,593,165 km (0.096 R)
• M11: 7,533,450 km (0.103 R)
• M12: 7,962,945 km (0.085 R)
• M13: 8,799,048 km (0.092 R)
• M14: 10,321,056 km (0.099 R)
• M15: 13,395,293 km (0.098 R)
• M16: 13,977,677 km (0.1 R)
• M17: 15,037,129 km (0.105 R)
• M18: 16,642,614 km (0.103 R)
• M19: 16,976,815 km (0.042 R)
• M20: 17,486,794 km (0.108 R)
• M21: 18,182,424 km (0.107 R)
• M22: 19,877,518 km (0.095 R)
• M23: 20,956,717 km (0.12 R)
• M24: 22,614,112 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.9

Radius: 10.1

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.63 AU - 5.79 AU

Year: 7801 Days

Day: 12.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,256,133 km

• M1: 125,662 km (0.106 R)
• M2: 1,002,605 km (0.095 R)
• M3: 1,772,884 km (0.116 R)
• M4: 2,407,179 km (0.059 R)
• M5: 3,993,665 km (0.118 R)
• M6: 5,372,060 km (0.104 R)
• M7: 7,604,209 km (0.119 R)
• M8: 8,701,360 km (0.04 R)
• M9: 10,268,847 km (0.115 R)
• M10: 11,163,292 km (0.115 R)
• M11: 14,262,212 km (0.11 R)
• M12: 14,891,122 km (0.098 R)
• M13: 16,204,591 km (0.081 R)
• M14: 18,013,229 km (0.08 R)
• M15: 24,613,188 km (0.09 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.8

Radius: 14.6

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 5.6 AU - 5.88 AU

Year: 9021 Days

Day: 7.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 26,256,133 km

• M1: 208,390 km (0.054 R)
• M2: 1,495,530 km (0.073 R)
• M3: 2,638,906 km (0.029 R)
• M4: 3,967,784 km (0.104 R)
• M5: 5,395,546 km (0.077 R)
• M6: 6,592,928 km (0.092 R)
• M7: 7,724,785 km (0.038 R)
• M8: 8,953,881 km (0.062 R)
• M9: 10,532,438 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 116.4

Radius: 5.9

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 4.94 AU - 7.22 AU

Year: 9835 Days

Day: 24 Hours

Environment

Temp: -219 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 26,256,133 km

• M1: 75,248 km (0.075 R)
• M2: 467,942 km (0.104 R)
• M3: 752,477 km (0.115 R)
• M4: 963,859 km (0.046 R)
• M5: 1,274,723 km (0.043 R)
• M6: 1,812,677 km (0.053 R)
• M7: 5,129,262 km (0.104 R)
• M8: 5,478,124 km (0.095 R)
• M9: 5,842,694 km (0.093 R)
• M10: 6,558,071 km (0.067 R)
• M11: 7,738,548 km (0.086 R)
• M12: 23,093,722 km (0.05 R)
• M13: 24,490,817 km (0.074 R)
• M14: 26,177,683 km (0.109 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 407 - 13,013 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit