🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.62 AU - 0.62 AU

Year: 310 Days

Day: 20 Hours

Environment

Temp: -124 °C

Axial Tilt: 49.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 76,662,105 km

• M1: 57,595 km (0.051 R)
• M2: 392,096 km (0.091 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.51 AU - 0.83 AU

Year: 349 Days

Day: 16.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 43.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.4

Radius: 14.2

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.81 AU - 1.15 AU

Year: 617 Days

Day: 12.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 76,662,105 km

• M1: 176,675 km (0.051 R)
• M2: 755,170 km (0.112 R)
• M3: 2,497,387 km (0.095 R)

Asteroid Belt

Center: 2.92 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893

Radius: 14.1

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 4.85 AU - 4.87 AU

Year: 6812 Days

Day: 12.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,662,105 km

• M1: 176,825 km (0.072 R)
• M2: 821,292 km (0.12 R)
• M3: 1,354,758 km (0.043 R)
• M4: 2,236,488 km (0.091 R)
• M5: 5,312,220 km (0.06 R)
• M6: 6,049,588 km (0.104 R)
• M7: 7,729,423 km (0.101 R)
• M8: 8,423,258 km (0.081 R)
• M9: 9,982,666 km (0.099 R)
• M10: 10,756,536 km (0.069 R)
• M11: 11,570,199 km (0.099 R)
• M12: 14,020,312 km (0.039 R)
• M13: 15,367,142 km (0.105 R)
• M14: 18,317,212 km (0.098 R)
• M15: 20,000,936 km (0.041 R)
• M16: 21,389,055 km (0.045 R)
• M17: 22,026,192 km (0.059 R)
• M18: 22,923,031 km (0.047 R)
• M19: 27,776,285 km (0.115 R)
• M20: 30,995,482 km (0.081 R)
• M21: 36,222,880 km (0.09 R)
• M22: 37,357,580 km (0.027 R)
• M23: 38,398,931 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.5

Radius: 13.1

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 5.04 AU - 5.5 AU

Year: 7692 Days

Day: 13.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,662,105 km

• M1: 162,912 km (0.097 R)
• M2: 573,109 km (0.061 R)
• M3: 1,295,069 km (0.034 R)
• M4: 1,778,419 km (0.071 R)
• M5: 3,101,014 km (0.043 R)
• M6: 4,498,707 km (0.099 R)
• M7: 5,568,631 km (0.091 R)
• M8: 7,017,636 km (0.069 R)
• M9: 8,917,230 km (0.11 R)
• M10: 9,575,760 km (0.113 R)
• M11: 10,793,935 km (0.102 R)
• M12: 11,238,839 km (0.103 R)
• M13: 12,866,314 km (0.038 R)
• M14: 16,389,344 km (0.1 R)
• M15: 21,503,348 km (0.107 R)
• M16: 22,849,878 km (0.082 R)
• M17: 23,338,315 km (0.039 R)
• M18: 25,275,607 km (0.084 R)
• M19: 26,864,935 km (0.101 R)
• M20: 28,239,590 km (0.12 R)
• M21: 29,372,495 km (0.078 R)
• M22: 38,167,802 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 653

Radius: 6.9

Gravity: 13.72 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.81 AU - 10.05 AU

Year: 15562 Days

Day: 17 Hours

Environment

Temp: -223 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 76,662,105 km

• M1: 115,789 km (0.055 R)
• M2: 359,783 km (0.1 R)
• M3: 584,329 km (0.108 R)
• M4: 816,056 km (0.106 R)
• M5: 1,039,107 km (0.114 R)
• M6: 1,828,385 km (0.066 R)
• M7: 2,178,444 km (0.074 R)
• M8: 2,421,990 km (0.103 R)
• M9: 2,683,786 km (0.114 R)
• M10: 2,988,666 km (0.064 R)
• M11: 4,510,226 km (0.08 R)
• M12: 4,908,306 km (0.071 R)
• M13: 5,438,331 km (0.059 R)
• M14: 7,038,879 km (0.114 R)
• M15: 8,930,245 km (0.048 R)
• M16: 12,429,788 km (0.071 R)
• M17: 15,236,842 km (0.091 R)
• M18: 17,864,230 km (0.119 R)
• M19: 18,774,982 km (0.04 R)
• M20: 20,420,708 km (0.06 R)
• M21: 20,688,937 km (0.116 R)
• M22: 21,693,038 km (0.104 R)
• M23: 23,308,246 km (0.086 R)
• M24: 28,188,128 km (0.096 R)
• M25: 30,224,305 km (0.086 R)
• M26: 39,076,161 km (0.079 R)
• M27: 41,174,570 km (0.111 R)
• M28: 42,760,158 km (0.12 R)
• M29: 46,979,566 km (0.087 R)
• M30: 47,291,028 km (0.096 R)
• M31: 47,761,065 km (0.08 R)
• M32: 51,633,555 km (0.107 R)
• M33: 52,801,167 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 793.4

Radius: 3.1

Gravity: 82.56 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 8.86 AU - 10.26 AU

Year: 18794 Days

Day: 18.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 76,662,105 km

• M1: 38,596 km (0.085 R)
• M2: 235,617 km (0.068 R)
• M3: 843,433 km (0.079 R)
• M4: 970,890 km (0.105 R)
• M5: 1,756,877 km (0.065 R)
• M6: 2,321,310 km (0.115 R)
• M7: 3,795,298 km (0.095 R)
• M8: 4,618,834 km (0.105 R)
• M9: 5,053,566 km (0.108 R)
• M10: 5,280,954 km (0.104 R)
• M11: 5,796,917 km (0.106 R)
• M12: 6,088,185 km (0.065 R)
• M13: 7,067,452 km (0.095 R)
• M14: 7,399,859 km (0.08 R)
• M15: 9,731,940 km (0.054 R)
• M16: 11,837,829 km (0.035 R)
• M17: 14,453,997 km (0.107 R)
• M18: 14,911,467 km (0.059 R)
• M19: 15,300,122 km (0.117 R)
• M20: 16,097,628 km (0.091 R)
• M21: 20,887,603 km (0.098 R)
• M22: 22,268,391 km (0.104 R)
• M23: 25,983,953 km (0.103 R)
• M24: 27,116,858 km (0.075 R)
• M25: 27,347,239 km (0.084 R)
• M26: 27,929,025 km (0.116 R)
• M27: 35,567,791 km (0.111 R)
• M28: 39,417,094 km (0.074 R)
• M29: 39,861,250 km (0.105 R)
• M30: 46,929,151 km (0.104 R)
• M31: 49,287,262 km (0.113 R)
• M32: 51,900,139 km (0.061 R)
• M33: 52,970,661 km (0.052 R)
• M34: 53,150,478 km (0.083 R)
• M35: 58,929,593 km (0.081 R)
• M36: 59,122,574 km (0.094 R)
• M37: 60,486,009 km (0.099 R)
• M38: 61,870,239 km (0.116 R)
• M39: 75,064,322 km (0.075 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 471 - 16,359 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit