🌌 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: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.42 AU - 0.62 AU

Year: 246 Days

Day: 26.6 Hours

Environment

Temp: -110 °C

Axial Tilt: 43.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.2

Radius: 12.8

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.89 AU - 0.99 AU

Year: 598 Days

Day: 5.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,108,973 km

• M1: 191,784 km (0.036 R)
• M2: 634,594 km (0.093 R)
• M3: 1,050,327 km (0.054 R)
• M4: 1,595,461 km (0.117 R)
• M5: 2,300,666 km (0.096 R)
• M6: 2,904,293 km (0.056 R)
• M7: 3,457,057 km (0.11 R)
• M8: 3,872,341 km (0.113 R)
• M9: 5,324,487 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.1

Radius: 9.9

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1 AU - 1.1 AU

Year: 706 Days

Day: 5.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,108,973 km

• M1: 123,119 km (0.113 R)
• M2: 441,912 km (0.061 R)
• M3: 782,696 km (0.052 R)
• M4: 1,115,402 km (0.104 R)
• M5: 1,447,509 km (0.069 R)
• M6: 1,777,971 km (0.074 R)
• M7: 2,130,124 km (0.098 R)
• M8: 2,729,862 km (0.095 R)
• M9: 3,305,814 km (0.037 R)
• M10: 3,990,822 km (0.1 R)
• M11: 4,423,011 km (0.086 R)
• M12: 4,801,194 km (0.067 R)
• M13: 5,129,861 km (0.109 R)
• M14: 5,755,778 km (0.085 R)
• M15: 7,989,723 km (0.106 R)
• M16: 8,304,627 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.3

Radius: 9

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.44 AU - 1.68 AU

Year: 1278 Days

Day: 7.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,108,973 km

• M1: 118,182 km (0.1 R)
• M2: 463,903 km (0.092 R)
• M3: 874,998 km (0.083 R)
• M4: 1,159,383 km (0.106 R)
• M5: 1,732,343 km (0.107 R)
• M6: 2,285,855 km (0.11 R)
• M7: 2,693,061 km (0.113 R)
• M8: 3,242,683 km (0.052 R)
• M9: 3,789,015 km (0.079 R)
• M10: 6,216,091 km (0.11 R)
• M11: 6,606,541 km (0.072 R)
• M12: 7,388,788 km (0.113 R)
• M13: 7,977,306 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388

Radius: 12.5

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.26 AU - 2.56 AU

Year: 2454 Days

Day: 7.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,108,973 km

• M1: 155,432 km (0.105 R)
• M2: 571,015 km (0.092 R)
• M3: 967,150 km (0.088 R)
• M4: 1,653,505 km (0.094 R)
• M5: 2,125,935 km (0.11 R)
• M6: 2,646,985 km (0.094 R)
• M7: 4,304,679 km (0.109 R)
• M8: 4,826,177 km (0.065 R)
• M9: 5,525,697 km (0.116 R)
• M10: 6,443,031 km (0.034 R)
• M11: 7,543,921 km (0.076 R)
• M12: 9,245,298 km (0.072 R)
• M13: 10,013,633 km (0.113 R)
• M14: 11,042,417 km (0.1 R)
• M15: 11,984,734 km (0.107 R)
• M16: 13,900,634 km (0.065 R)
• M17: 14,333,271 km (0.107 R)
• M18: 15,316,877 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.9

Radius: 15

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.81 AU - 3.23 AU

Year: 3443 Days

Day: 6.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 49,108,973 km

• M1: 186,549 km (0.093 R)
• M2: 709,991 km (0.091 R)
• M3: 1,219,671 km (0.115 R)
• M4: 2,009,698 km (0.114 R)
• M5: 2,508,307 km (0.119 R)
• M6: 3,904,056 km (0.101 R)
• M7: 4,809,572 km (0.093 R)
• M8: 5,743,361 km (0.059 R)
• M9: 6,411,765 km (0.111 R)
• M10: 6,946,727 km (0.114 R)
• M11: 8,913,640 km (0.112 R)
• M12: 9,658,039 km (0.106 R)
• M13: 15,550,250 km (0.04 R)
• M14: 17,132,696 km (0.083 R)
• M15: 17,876,048 km (0.111 R)
• M16: 19,611,832 km (0.083 R)
• M17: 20,172,824 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.4

Radius: 13.4

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 4.57 AU - 4.99 AU

Year: 6856 Days

Day: 8.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 67.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 49,108,973 km

• M1: 166,652 km (0.049 R)
• M2: 749,635 km (0.087 R)
• M3: 1,401,283 km (0.11 R)
• M4: 2,368,134 km (0.091 R)
• M5: 3,488,024 km (0.113 R)
• M6: 4,503,195 km (0.106 R)
• M7: 5,283,647 km (0.116 R)
• M8: 5,735,732 km (0.101 R)
• M9: 7,216,152 km (0.107 R)
• M10: 8,027,422 km (0.082 R)
• M11: 8,627,010 km (0.093 R)
• M12: 11,330,094 km (0.119 R)
• M13: 11,751,062 km (0.028 R)
• M14: 12,924,957 km (0.119 R)
• M15: 14,121,889 km (0.077 R)
• M16: 14,941,536 km (0.09 R)
• M17: 15,792,598 km (0.077 R)
• M18: 17,282,593 km (0.105 R)
• M19: 17,778,809 km (0.114 R)
• M20: 20,957,764 km (0.1 R)
• M21: 21,664,913 km (0.027 R)
• M22: 22,829,383 km (0.105 R)
• M23: 23,578,120 km (0.032 R)
• M24: 24,575,789 km (0.1 R)
• M25: 25,045,676 km (0.1 R)
• M26: 26,084,483 km (0.056 R)
• M27: 26,902,783 km (0.102 R)
• M28: 28,077,276 km (0.091 R)
• M29: 29,285,578 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.2

Radius: 11.5

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 4.31 AU - 6.31 AU

Year: 8027 Days

Day: 10.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,108,973 km

• M1: 145,110 km (0.106 R)
• M2: 890,556 km (0.087 R)
• M3: 1,514,379 km (0.11 R)
• M4: 1,973,046 km (0.117 R)
• M5: 4,269,224 km (0.069 R)
• M6: 5,945,169 km (0.109 R)
• M7: 6,438,543 km (0.069 R)
• M8: 13,422,669 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 697.8

Radius: 5.6

Gravity: 22.25 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.21 AU - 7.31 AU

Year: 10275 Days

Day: 20.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 49,108,973 km

• M1: 69,713 km (0.117 R)
• M2: 289,921 km (0.068 R)
• M3: 486,043 km (0.119 R)
• M4: 674,088 km (0.11 R)
• M5: 941,569 km (0.102 R)
• M6: 1,433,896 km (0.092 R)
• M7: 2,300,965 km (0.108 R)
• M8: 2,824,707 km (0.113 R)
• M9: 3,023,523 km (0.064 R)
• M10: 4,538,351 km (0.119 R)
• M11: 4,874,198 km (0.107 R)
• M12: 5,839,104 km (0.03 R)
• M13: 8,051,806 km (0.067 R)
• M14: 8,681,763 km (0.075 R)
• M15: 9,199,222 km (0.119 R)
• M16: 9,687,360 km (0.114 R)
• M17: 9,937,787 km (0.09 R)
• M18: 13,787,239 km (0.037 R)
• M19: 15,286,060 km (0.059 R)
• M20: 16,746,434 km (0.074 R)
• M21: 17,107,265 km (0.066 R)
• M22: 17,547,232 km (0.104 R)
• M23: 17,994,829 km (0.104 R)
• M24: 19,303,960 km (0.094 R)
• M25: 23,701,239 km (0.057 R)
• M26: 23,882,552 km (0.066 R)
• M27: 26,227,798 km (0.112 R)
• M28: 27,406,180 km (0.083 R)
• M29: 33,946,300 km (0.08 R)
• M30: 39,769,846 km (0.111 R)
• M31: 42,247,635 km (0.12 R)
• M32: 44,550,246 km (0.078 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 498 - 19,597 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit