🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.39 AU - 0.65 AU

Year: 242 Days

Day: 15.2 Hours

Environment

Temp: -109 °C

Axial Tilt: 45.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.7

Radius: 8.7

Gravity: 9.19 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.69 AU - 1.11 AU

Year: 551 Days

Day: 13.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 67,513,833 km

• M1: 108,159 km (0.085 R)
• M2: 392,844 km (0.066 R)
• M3: 835,355 km (0.104 R)
• M4: 1,119,590 km (0.097 R)
• M5: 1,497,923 km (0.088 R)
• M6: 1,834,369 km (0.098 R)
• M7: 2,278,226 km (0.117 R)
• M8: 3,018,436 km (0.11 R)
• M9: 3,306,412 km (0.09 R)
• M10: 3,679,060 km (0.114 R)
• M11: 4,093,895 km (0.045 R)
• M12: 4,601,481 km (0.097 R)
• M13: 4,984,601 km (0.119 R)
• M14: 5,302,945 km (0.081 R)
• M15: 5,616,951 km (0.092 R)
• M16: 6,111,372 km (0.077 R)
• M17: 6,496,138 km (0.043 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.3

Radius: 11.8

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.82 AU - 1 AU

Year: 561 Days

Day: 7.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,513,833 km

• M1: 146,756 km (0.117 R)
• M2: 535,112 km (0.046 R)
• M3: 1,059,751 km (0.108 R)
• M4: 1,544,149 km (0.113 R)
• M5: 2,063,703 km (0.11 R)
• M6: 2,473,152 km (0.115 R)
• M7: 3,253,305 km (0.109 R)
• M8: 3,660,361 km (0.108 R)
• M9: 4,546,130 km (0.104 R)
• M10: 5,195,085 km (0.092 R)
• M11: 5,679,782 km (0.101 R)
• M12: 6,393,215 km (0.096 R)
• M13: 6,993,252 km (0.081 R)
• M14: 7,767,271 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.4

Radius: 15

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.02 AU - 1.66 AU

Year: 1002 Days

Day: 13 Hours

Environment

Temp: -168 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,513,833 km

• M1: 186,549 km (0.102 R)
• M2: 744,549 km (0.03 R)
• M3: 1,269,787 km (0.106 R)
• M4: 2,003,863 km (0.097 R)
• M5: 2,999,288 km (0.071 R)
• M6: 3,498,496 km (0.042 R)
• M7: 4,434,081 km (0.078 R)
• M8: 5,531,082 km (0.062 R)
• M9: 7,205,980 km (0.116 R)
• M10: 7,793,301 km (0.097 R)
• M11: 9,010,878 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.2

Radius: 9.5

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.57 AU - 2.13 AU

Year: 1625 Days

Day: 9.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,513,833 km

• M1: 118,182 km (0.119 R)
• M2: 423,063 km (0.104 R)
• M3: 1,011,431 km (0.108 R)
• M4: 1,310,777 km (0.087 R)
• M5: 1,618,948 km (0.077 R)
• M6: 1,927,269 km (0.095 R)
• M7: 2,701,738 km (0.116 R)
• M8: 3,112,982 km (0.063 R)
• M9: 3,536,194 km (0.051 R)
• M10: 3,854,988 km (0.058 R)
• M11: 4,550,917 km (0.051 R)
• M12: 5,446,110 km (0.1 R)
• M13: 6,256,632 km (0.12 R)
• M14: 7,003,275 km (0.055 R)
• M15: 7,361,861 km (0.075 R)
• M16: 8,298,942 km (0.067 R)
• M17: 9,228,393 km (0.107 R)
• M18: 9,543,447 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.2

Radius: 12.6

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.62 AU - 3.48 AU

Year: 3439 Days

Day: 6.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 67,513,833 km

• M1: 156,629 km (0.104 R)
• M2: 891,753 km (0.097 R)
• M3: 1,734,887 km (0.09 R)
• M4: 2,234,394 km (0.118 R)
• M5: 2,690,518 km (0.066 R)
• M6: 3,295,641 km (0.081 R)
• M7: 4,070,857 km (0.115 R)
• M8: 5,749,196 km (0.1 R)
• M9: 9,267,289 km (0.083 R)
• M10: 14,017,470 km (0.057 R)
• M11: 14,737,634 km (0.08 R)
• M12: 15,181,342 km (0.094 R)
• M13: 16,513,810 km (0.089 R)
• M14: 17,046,677 km (0.1 R)
• M15: 17,645,966 km (0.071 R)
• M16: 18,202,919 km (0.094 R)
• M17: 19,765,319 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 349.7

Radius: 6

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 9.06 AU - 12.84 AU

Year: 23396 Days

Day: 23.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 67,513,833 km

• M1: 74,799 km (0.101 R)
• M2: 280,197 km (0.116 R)
• M3: 630,405 km (0.073 R)
• M4: 1,018,612 km (0.079 R)
• M5: 1,315,414 km (0.116 R)
• M6: 1,570,927 km (0.09 R)
• M7: 3,220,992 km (0.061 R)
• M8: 3,688,186 km (0.087 R)
• M9: 4,688,696 km (0.074 R)
• M10: 6,768,107 km (0.11 R)
• M11: 8,155,328 km (0.081 R)
• M12: 8,967,944 km (0.115 R)
• M13: 12,367,705 km (0.078 R)
• M14: 13,301,046 km (0.112 R)
• M15: 14,208,806 km (0.111 R)
• M16: 14,496,333 km (0.054 R)
• M17: 14,787,600 km (0.072 R)
• M18: 15,685,187 km (0.111 R)
• M19: 19,463,132 km (0.108 R)
• M20: 19,996,747 km (0.09 R)
• M21: 23,305,553 km (0.08 R)
• M22: 24,828,908 km (0.114 R)
• M23: 28,072,788 km (0.111 R)
• M24: 29,213,771 km (0.112 R)
• M25: 30,623,582 km (0.113 R)
• M26: 34,863,036 km (0.107 R)
• M27: 43,269,688 km (0.037 R)
• M28: 45,564,071 km (0.12 R)
• M29: 49,896,275 km (0.112 R)
• M30: 55,376,494 km (0.071 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 456 - 16,606 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit