🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.8 AU - 0.88 AU

Year: 283 Days

Day: 31.1 Hours

Environment

Temp: 140 °C

Axial Tilt: 17.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 104,222,383 km

• M1: 108,010 km (0.115 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.96 AU - 2.58 AU

Year: 1255 Days

Day: 28.6 Hours

Environment

Temp: -87 °C

Axial Tilt: 74.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.4

Radius: 14.3

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 5.23 AU - 5.78 AU

Year: 4735 Days

Day: 11 Hours

Environment

Temp: -141 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 104,222,383 km

• M1: 177,872 km (0.093 R)
• M2: 663,018 km (0.089 R)
• M3: 1,589,627 km (0.102 R)
• M4: 2,317,121 km (0.045 R)
• M5: 3,465,435 km (0.048 R)
• M6: 4,020,592 km (0.104 R)
• M7: 5,147,812 km (0.106 R)
• M8: 7,119,811 km (0.104 R)
• M9: 9,206,103 km (0.094 R)
• M10: 13,500,759 km (0.098 R)
• M11: 15,709,272 km (0.105 R)
• M12: 18,699,435 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.2

Radius: 8.9

Gravity: 12.54 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 5.82 AU - 6.6 AU

Year: 5681 Days

Day: 9 Hours

Environment

Temp: -144 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 104,222,383 km

• M1: 110,702 km (0.074 R)
• M2: 495,019 km (0.066 R)
• M3: 1,024,895 km (0.045 R)
• M4: 1,456,186 km (0.111 R)
• M5: 2,781,623 km (0.102 R)
• M6: 3,514,204 km (0.1 R)
• M7: 3,865,160 km (0.107 R)
• M8: 4,665,359 km (0.052 R)
• M9: 5,267,491 km (0.091 R)
• M10: 7,312,344 km (0.095 R)
• M11: 9,836,658 km (0.095 R)
• M12: 11,674,019 km (0.065 R)
• M13: 12,946,050 km (0.07 R)
• M14: 16,591,152 km (0.082 R)
• M15: 17,921,376 km (0.088 R)
• M16: 18,403,380 km (0.111 R)
• M17: 19,609,887 km (0.044 R)
• M18: 23,463,379 km (0.104 R)
• M19: 23,791,896 km (0.048 R)
• M20: 25,480,856 km (0.11 R)
• M21: 26,178,281 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.4

Radius: 13.1

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 7.27 AU - 9.17 AU

Year: 8651 Days

Day: 7.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 104,222,383 km

• M1: 163,510 km (0.05 R)
• M2: 586,274 km (0.1 R)
• M3: 1,199,625 km (0.058 R)
• M4: 1,727,257 km (0.116 R)
• M5: 2,192,207 km (0.104 R)
• M6: 2,620,356 km (0.085 R)
• M7: 3,334,088 km (0.117 R)
• M8: 4,146,853 km (0.104 R)
• M9: 4,571,262 km (0.046 R)
• M10: 5,710,749 km (0.088 R)
• M11: 6,238,231 km (0.027 R)
• M12: 6,721,582 km (0.089 R)
• M13: 7,310,250 km (0.108 R)
• M14: 9,238,417 km (0.049 R)
• M15: 10,218,731 km (0.12 R)
• M16: 11,159,253 km (0.045 R)
• M17: 11,873,733 km (0.114 R)
• M18: 12,618,580 km (0.092 R)
• M19: 13,032,368 km (0.09 R)
• M20: 15,709,272 km (0.094 R)
• M21: 16,607,308 km (0.092 R)
• M22: 18,055,416 km (0.089 R)
• M23: 20,061,673 km (0.034 R)
• M24: 22,041,900 km (0.11 R)
• M25: 28,761,687 km (0.072 R)
• M26: 31,490,202 km (0.066 R)
• M27: 34,501,907 km (0.11 R)
• M28: 38,809,577 km (0.054 R)
• M29: 39,309,384 km (0.036 R)
• M30: 46,342,877 km (0.076 R)
• M31: 47,046,735 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.3

Radius: 10.4

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 9.2 AU - 12.4 AU

Year: 13029 Days

Day: 12.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 104,222,383 km

• M1: 129,402 km (0.09 R)
• M2: 515,664 km (0.073 R)
• M3: 901,028 km (0.111 R)
• M4: 1,290,581 km (0.078 R)
• M5: 2,204,325 km (0.067 R)
• M6: 2,722,681 km (0.11 R)
• M7: 4,004,585 km (0.077 R)
• M8: 4,617,039 km (0.114 R)
• M9: 5,876,055 km (0.111 R)
• M10: 7,847,156 km (0.108 R)
• M11: 9,211,938 km (0.089 R)
• M12: 9,950,802 km (0.05 R)
• M13: 11,368,092 km (0.082 R)
• M14: 11,788,013 km (0.12 R)
• M15: 19,143,292 km (0.117 R)
• M16: 19,997,047 km (0.063 R)
• M17: 20,698,212 km (0.116 R)
• M18: 21,872,405 km (0.089 R)
• M19: 22,616,804 km (0.096 R)
• M20: 23,090,581 km (0.116 R)
• M21: 27,981,235 km (0.069 R)
• M22: 32,551,150 km (0.088 R)
• M23: 33,155,376 km (0.11 R)
• M24: 35,012,634 km (0.112 R)
• M25: 36,288,703 km (0.113 R)
• M26: 41,846,115 km (0.042 R)
• M27: 42,992,932 km (0.074 R)
• M28: 44,160,543 km (0.076 R)
• M29: 47,635,104 km (0.053 R)
• M30: 49,677,563 km (0.108 R)
• M31: 51,614,108 km (0.09 R)
• M32: 54,782,291 km (0.068 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 934.4

Radius: 5

Gravity: 37.38 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 13.63 AU - 21.87 AU

Year: 27452 Days

Day: 15.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 104,222,383 km

• M1: 67,020 km (0.104 R)
• M2: 538,702 km (0.082 R)
• M3: 1,054,665 km (0.096 R)
• M4: 1,217,278 km (0.095 R)
• M5: 4,048,717 km (0.077 R)
• M6: 6,481,627 km (0.11 R)
• M7: 7,188,626 km (0.053 R)
• M8: 7,614,980 km (0.105 R)
• M9: 11,295,836 km (0.071 R)
• M10: 12,926,602 km (0.086 R)
• M11: 15,569,249 km (0.078 R)
• M12: 17,581,639 km (0.062 R)
• M13: 25,983,355 km (0.076 R)
• M14: 27,111,921 km (0.103 R)
• M15: 27,752,948 km (0.05 R)
• M16: 28,932,079 km (0.119 R)
• M17: 32,381,955 km (0.068 R)
• M18: 34,131,203 km (0.045 R)
• M19: 46,329,563 km (0.045 R)
• M20: 52,398,449 km (0.105 R)
• M21: 59,619,688 km (0.066 R)
• M22: 60,267,746 km (0.1 R)
• M23: 64,029,534 km (0.11 R)
• M24: 64,936,845 km (0.103 R)
• M25: 72,751,838 km (0.11 R)
• M26: 77,267,599 km (0.087 R)
• M27: 84,385,915 km (0.057 R)
• M28: 89,084,784 km (0.111 R)
• M29: 93,663,825 km (0.045 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 155 - 15,771 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit