🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.64

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.62 AU - 0.72 AU

Year: 360 Days

Day: 36 Hours

Environment

Temp: -136 °C

Axial Tilt: 41.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,583,622 km

• M1: 635,941 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.3

Radius: 11.9

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.66 AU - 0.88 AU

Year: 443 Days

Day: 6.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,583,622 km

• M1: 147,952 km (0.087 R)
• M2: 690,693 km (0.118 R)
• M3: 1,322,894 km (0.113 R)
• M4: 1,959,732 km (0.064 R)
• M5: 2,834,431 km (0.093 R)
• M6: 4,347,913 km (0.03 R)
• M7: 4,844,428 km (0.079 R)
• M8: 5,460,322 km (0.063 R)
• M9: 5,830,427 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.3

Radius: 9

Gravity: 11.37 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.69 AU - 1.11 AU

Year: 560 Days

Day: 14.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,583,622 km

• M1: 111,899 km (0.057 R)
• M2: 425,456 km (0.084 R)
• M3: 889,359 km (0.072 R)
• M4: 1,203,964 km (0.069 R)
• M5: 1,647,970 km (0.061 R)
• M6: 2,131,919 km (0.112 R)
• M7: 3,093,684 km (0.054 R)
• M8: 3,384,203 km (0.098 R)
• M9: 3,665,297 km (0.098 R)
• M10: 5,584,638 km (0.059 R)
• M11: 5,921,533 km (0.045 R)
• M12: 6,929,224 km (0.118 R)
• M13: 7,252,804 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.1

Radius: 8.5

Gravity: 10.45 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.59 AU - 1.89 AU

Year: 1506 Days

Day: 11.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,583,622 km

• M1: 110,104 km (0.049 R)
• M2: 441,463 km (0.074 R)
• M3: 793,168 km (0.104 R)
• M4: 1,092,663 km (0.067 R)
• M5: 1,813,126 km (0.066 R)
• M6: 2,199,837 km (0.072 R)
• M7: 3,094,881 km (0.098 R)
• M8: 3,468,726 km (0.106 R)
• M9: 4,556,602 km (0.112 R)
• M10: 4,917,282 km (0.04 R)
• M11: 5,516,272 km (0.078 R)
• M12: 5,810,531 km (0.083 R)
• M13: 6,211,154 km (0.054 R)
• M14: 6,833,631 km (0.114 R)
• M15: 7,497,097 km (0.099 R)
• M16: 7,858,675 km (0.101 R)
• M17: 8,202,900 km (0.095 R)
• M18: 8,467,539 km (0.115 R)
• M19: 8,859,934 km (0.06 R)
• M20: 9,391,156 km (0.115 R)
• M21: 9,778,914 km (0.103 R)
• M22: 10,346,488 km (0.09 R)
• M23: 11,292,844 km (0.109 R)
• M24: 12,181,605 km (0.073 R)
• M25: 12,957,120 km (0.084 R)
• M26: 13,847,676 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.8

Radius: 13.2

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.76 AU - 2.8 AU

Year: 3041 Days

Day: 12.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,583,622 km

• M1: 166,951 km (0.115 R)
• M2: 638,035 km (0.09 R)
• M3: 1,264,102 km (0.025 R)
• M4: 1,923,230 km (0.108 R)
• M5: 2,483,773 km (0.03 R)
• M6: 3,152,177 km (0.093 R)
• M7: 3,730,073 km (0.029 R)
• M8: 4,689,594 km (0.11 R)
• M9: 6,065,296 km (0.054 R)
• M10: 6,756,887 km (0.106 R)
• M11: 8,995,021 km (0.103 R)
• M12: 11,105,099 km (0.07 R)
• M13: 11,839,175 km (0.111 R)
• M14: 13,527,088 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.9

Radius: 13.5

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 2.67 AU - 3.53 AU

Year: 3581 Days

Day: 6.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,583,622 km

• M1: 167,849 km (0.108 R)
• M2: 593,455 km (0.1 R)
• M3: 1,039,556 km (0.06 R)
• M4: 1,941,930 km (0.052 R)
• M5: 3,534,698 km (0.071 R)
• M6: 4,394,437 km (0.109 R)
• M7: 5,340,046 km (0.077 R)
• M8: 7,760,390 km (0.053 R)
• M9: 9,069,820 km (0.039 R)
• M10: 10,021,561 km (0.052 R)
• M11: 15,046,703 km (0.074 R)
• M12: 15,961,644 km (0.068 R)
• M13: 17,846,278 km (0.109 R)
• M14: 18,297,166 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.9

Radius: 9.9

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.97 AU - 4.71 AU

Year: 4936 Days

Day: 13.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,583,622 km

• M1: 123,119 km (0.069 R)
• M2: 798,105 km (0.109 R)
• M3: 1,113,158 km (0.062 R)
• M4: 1,650,962 km (0.11 R)
• M5: 2,639,954 km (0.119 R)
• M6: 3,119,116 km (0.11 R)
• M7: 4,135,783 km (0.081 R)
• M8: 5,546,042 km (0.084 R)
• M9: 6,283,410 km (0.102 R)
• M10: 6,596,069 km (0.087 R)
• M11: 6,946,727 km (0.11 R)
• M12: 8,793,363 km (0.088 R)
• M13: 12,549,616 km (0.107 R)
• M14: 14,214,939 km (0.106 R)
• M15: 14,528,646 km (0.103 R)
• M16: 15,031,145 km (0.097 R)
• M17: 15,830,447 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 737.4

Radius: 7.7

Gravity: 12.44 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 8.09 AU - 12.33 AU

Year: 21402 Days

Day: 25 Hours

Environment

Temp: -239 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,583,622 km

• M1: 96,042 km (0.085 R)
• M2: 603,328 km (0.12 R)
• M3: 1,194,389 km (0.078 R)
• M4: 1,446,911 km (0.1 R)
• M5: 1,962,275 km (0.051 R)
• M6: 2,252,196 km (0.117 R)
• M7: 2,740,932 km (0.103 R)
• M8: 5,920,037 km (0.11 R)
• M9: 6,219,681 km (0.056 R)
• M10: 6,803,262 km (0.117 R)
• M11: 7,822,323 km (0.07 R)
• M12: 8,995,470 km (0.048 R)
• M13: 12,855,992 km (0.117 R)
• M14: 15,506,717 km (0.099 R)
• M15: 17,697,129 km (0.118 R)
• M16: 18,866,236 km (0.063 R)
• M17: 22,474,387 km (0.092 R)
• M18: 24,714,167 km (0.101 R)
• M19: 25,045,825 km (0.026 R)
• M20: 27,451,359 km (0.105 R)
• M21: 29,384,612 km (0.097 R)
• M22: 42,604,726 km (0.103 R)
• M23: 46,018,998 km (0.079 R)
• M24: 50,139,522 km (0.096 R)
• M25: 56,197,338 km (0.05 R)
• M26: 59,897,342 km (0.056 R)
• M27: 64,172,101 km (0.11 R)
• M28: 70,847,607 km (0.099 R)
• M29: 73,323,302 km (0.088 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 12,259 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit