🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380

Radius: 9.7

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.72 AU - 0.74 AU

Year: 416 Days

Day: 5 Hours

Environment

Temp: -156 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,962,626 km

• M1: 120,725 km (0.12 R)
• M2: 513,121 km (0.102 R)
• M3: 822,190 km (0.078 R)
• M4: 1,166,415 km (0.115 R)
• M5: 1,700,928 km (0.1 R)
• M6: 2,151,068 km (0.116 R)
• M7: 2,651,622 km (0.027 R)
• M8: 3,040,876 km (0.112 R)
• M9: 3,490,567 km (0.037 R)
• M10: 3,910,937 km (0.056 R)
• M11: 4,483,598 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.5

Radius: 13.4

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.7 AU - 1 AU

Year: 523 Days

Day: 12.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,962,626 km

• M1: 166,652 km (0.119 R)
• M2: 859,739 km (0.044 R)
• M3: 1,428,360 km (0.083 R)
• M4: 1,854,864 km (0.046 R)
• M5: 2,273,140 km (0.111 R)
• M6: 2,744,373 km (0.101 R)
• M7: 3,391,982 km (0.08 R)
• M8: 5,011,379 km (0.082 R)
• M9: 6,245,262 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145

Radius: 13.9

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.72 AU - 1.04 AU

Year: 550 Days

Day: 5.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,962,626 km

• M1: 172,935 km (0.031 R)
• M2: 647,460 km (0.038 R)
• M3: 1,240,765 km (0.101 R)
• M4: 1,850,675 km (0.084 R)
• M5: 2,478,986 km (0.112 R)
• M6: 2,937,205 km (0.109 R)
• M7: 3,677,415 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.4

Radius: 8

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.17 AU - 1.49 AU

Year: 1023 Days

Day: 14.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 22,962,626 km

• M1: 99,483 km (0.091 R)
• M2: 426,653 km (0.027 R)
• M3: 691,441 km (0.108 R)
• M4: 1,022,801 km (0.104 R)
• M5: 1,399,488 km (0.071 R)
• M6: 1,777,522 km (0.081 R)
• M7: 2,112,322 km (0.106 R)
• M8: 2,423,037 km (0.119 R)
• M9: 3,349,796 km (0.103 R)
• M10: 3,600,372 km (0.119 R)
• M11: 3,939,062 km (0.078 R)
• M12: 4,994,475 km (0.109 R)
• M13: 5,665,271 km (0.106 R)
• M14: 6,289,992 km (0.12 R)
• M15: 6,870,581 km (0.098 R)
• M16: 7,231,262 km (0.109 R)
• M17: 8,263,487 km (0.062 R)
• M18: 8,594,098 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.4

Radius: 8.6

Gravity: 10.74 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.92 AU - 2.78 AU

Year: 2402 Days

Day: 13.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 22,962,626 km

• M1: 115,490 km (0.091 R)
• M2: 416,630 km (0.074 R)
• M3: 1,354,908 km (0.114 R)
• M4: 1,722,171 km (0.063 R)
• M5: 2,540,770 km (0.116 R)
• M6: 2,972,061 km (0.104 R)
• M7: 3,257,344 km (0.114 R)
• M8: 3,653,629 km (0.027 R)
• M9: 4,122,469 km (0.059 R)
• M10: 5,228,296 km (0.083 R)
• M11: 5,901,935 km (0.076 R)
• M12: 7,605,257 km (0.092 R)
• M13: 8,174,476 km (0.077 R)
• M14: 8,737,862 km (0.112 R)
• M15: 9,685,714 km (0.058 R)
• M16: 10,203,323 km (0.109 R)
• M17: 10,507,306 km (0.108 R)
• M18: 11,014,293 km (0.12 R)
• M19: 11,825,861 km (0.062 R)
• M20: 12,161,559 km (0.082 R)
• M21: 13,659,333 km (0.114 R)
• M22: 14,836,518 km (0.08 R)
• M23: 15,724,980 km (0.106 R)
• M24: 19,000,426 km (0.064 R)
• M25: 19,287,504 km (0.025 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.3

Radius: 10

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.27 AU - 2.79 AU

Year: 2684 Days

Day: 6.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 22,962,626 km

• M1: 129,103 km (0.107 R)
• M2: 491,728 km (0.102 R)
• M3: 868,116 km (0.113 R)
• M4: 1,205,160 km (0.108 R)
• M5: 1,838,857 km (0.073 R)
• M6: 2,459,239 km (0.097 R)
• M7: 2,975,352 km (0.082 R)
• M8: 3,480,993 km (0.1 R)
• M9: 5,029,929 km (0.075 R)
• M10: 6,074,870 km (0.111 R)
• M11: 6,486,414 km (0.095 R)
• M12: 7,046,808 km (0.094 R)
• M13: 8,147,998 km (0.115 R)
• M14: 8,923,064 km (0.094 R)
• M15: 9,976,532 km (0.096 R)
• M16: 12,026,023 km (0.116 R)
• M17: 12,872,149 km (0.111 R)
• M18: 13,839,897 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.6

Radius: 11.6

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.53 AU - 4.03 AU

Year: 3961 Days

Day: 14.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 22,962,626 km

• M1: 147,803 km (0.088 R)
• M2: 519,105 km (0.088 R)
• M3: 910,303 km (0.053 R)
• M4: 1,432,250 km (0.098 R)
• M5: 1,875,658 km (0.088 R)
• M6: 2,316,822 km (0.061 R)
• M7: 3,606,057 km (0.077 R)
• M8: 5,686,664 km (0.116 R)
• M9: 6,378,704 km (0.069 R)
• M10: 7,241,584 km (0.097 R)
• M11: 7,625,901 km (0.12 R)
• M12: 8,500,450 km (0.117 R)
• M13: 8,895,089 km (0.084 R)
• M14: 11,056,031 km (0.102 R)
• M15: 12,341,675 km (0.108 R)
• M16: 13,413,543 km (0.074 R)
• M17: 15,449,271 km (0.115 R)
• M18: 15,889,837 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.4

Radius: 9.8

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 4.1 AU - 4.5 AU

Year: 5946 Days

Day: 13.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 22,962,626 km

• M1: 124,166 km (0.113 R)
• M2: 553,512 km (0.092 R)
• M3: 1,114,055 km (0.067 R)
• M4: 1,508,395 km (0.047 R)
• M5: 2,110,676 km (0.108 R)
• M6: 4,496,164 km (0.098 R)
• M7: 6,967,222 km (0.034 R)
• M8: 11,075,778 km (0.106 R)
• M9: 11,969,774 km (0.107 R)
• M10: 13,530,828 km (0.114 R)
• M11: 13,954,789 km (0.09 R)
• M12: 17,547,381 km (0.068 R)
• M13: 17,924,817 km (0.09 R)
• M14: 19,826,056 km (0.055 R)
• M15: 25,360,130 km (0.093 R)
• M16: 26,249,938 km (0.111 R)
• M17: 28,435,563 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 49.8

Radius: 5.5

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 6.04 AU - 7.92 AU

Year: 12297 Days

Day: 24.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 22,962,626 km

• M1: 78,838 km (0.107 R)
• M2: 443,558 km (0.118 R)
• M3: 898,634 km (0.092 R)
• M4: 1,256,473 km (0.084 R)
• M5: 2,828,447 km (0.098 R)
• M6: 3,574,192 km (0.066 R)
• M7: 5,393,751 km (0.067 R)
• M8: 8,472,027 km (0.07 R)
• M9: 9,921,331 km (0.03 R)
• M10: 10,602,001 km (0.116 R)
• M11: 14,227,805 km (0.09 R)
• M12: 18,012,332 km (0.114 R)
• M13: 18,188,109 km (0.078 R)
• M14: 19,205,674 km (0.107 R)
• M15: 21,814,810 km (0.039 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 17,790 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit