🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.61 AU - 0.69 AU

Year: 333 Days

Day: 40.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 27.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,126,735 km

• M1: 29,022 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.9

Radius: 10.9

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.59 AU - 0.81 AU

Year: 372 Days

Day: 9 Hours

Environment

Temp: -138 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,126,735 km

• M1: 135,536 km (0.108 R)
• M2: 512,971 km (0.119 R)
• M3: 891,603 km (0.103 R)
• M4: 1,254,827 km (0.072 R)
• M5: 1,817,465 km (0.113 R)
• M6: 2,304,406 km (0.074 R)
• M7: 2,654,315 km (0.055 R)
• M8: 3,039,978 km (0.062 R)
• M9: 3,417,863 km (0.059 R)
• M10: 4,088,510 km (0.099 R)
• M11: 4,661,170 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.5

Radius: 11.9

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.78 AU - 0.8 AU

Year: 446 Days

Day: 12.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 90,126,735 km

• M1: 147,952 km (0.054 R)
• M2: 519,853 km (0.046 R)
• M3: 1,194,539 km (0.086 R)
• M4: 2,346,592 km (0.113 R)
• M5: 2,908,332 km (0.113 R)
• M6: 3,335,584 km (0.049 R)
• M7: 4,048,717 km (0.107 R)
• M8: 4,690,342 km (0.095 R)
• M9: 6,516,483 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.2

Radius: 10.5

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.84 AU - 1.04 AU

Year: 579 Days

Day: 10.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,126,735 km

• M1: 132,245 km (0.064 R)
• M2: 499,806 km (0.103 R)
• M3: 861,385 km (0.078 R)
• M4: 1,191,846 km (0.117 R)
• M5: 2,141,194 km (0.075 R)
• M6: 2,510,551 km (0.101 R)
• M7: 3,241,038 km (0.057 R)
• M8: 3,819,832 km (0.104 R)
• M9: 4,423,908 km (0.03 R)
• M10: 4,982,656 km (0.111 R)
• M11: 5,571,174 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.9

Radius: 11

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.18 AU - 3.1 AU

Year: 2727 Days

Day: 13.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 90,126,735 km

• M1: 136,732 km (0.102 R)
• M2: 524,640 km (0.087 R)
• M3: 1,002,007 km (0.108 R)
• M4: 1,389,465 km (0.115 R)
• M5: 1,820,905 km (0.053 R)
• M6: 2,183,231 km (0.073 R)
• M7: 2,652,819 km (0.1 R)
• M8: 3,256,895 km (0.035 R)
• M9: 3,873,238 km (0.098 R)
• M10: 4,630,652 km (0.096 R)
• M11: 5,411,254 km (0.068 R)
• M12: 7,442,045 km (0.101 R)
• M13: 9,363,181 km (0.07 R)
• M14: 10,419,641 km (0.074 R)
• M15: 11,352,833 km (0.107 R)
• M16: 12,130,293 km (0.1 R)
• M17: 13,295,660 km (0.097 R)
• M18: 15,848,398 km (0.078 R)
• M19: 16,354,638 km (0.082 R)
• M20: 17,081,384 km (0.048 R)
• M21: 17,829,673 km (0.1 R)
• M22: 18,879,850 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.8

Radius: 9

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 3.18 AU - 3.3 AU

Year: 3708 Days

Day: 5.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,126,735 km

• M1: 112,049 km (0.061 R)
• M2: 509,979 km (0.064 R)
• M3: 1,231,041 km (0.09 R)
• M4: 1,580,502 km (0.071 R)
• M5: 1,907,223 km (0.045 R)
• M6: 2,630,379 km (0.091 R)
• M7: 4,732,828 km (0.106 R)
• M8: 5,176,236 km (0.044 R)
• M9: 8,173,728 km (0.117 R)
• M10: 9,584,287 km (0.107 R)
• M11: 14,959,488 km (0.068 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.2

Radius: 12

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 3.39 AU - 4.09 AU

Year: 4599 Days

Day: 11.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 90,126,735 km

• M1: 150,944 km (0.057 R)
• M2: 970,142 km (0.039 R)
• M3: 1,806,993 km (0.115 R)
• M4: 2,594,925 km (0.057 R)
• M5: 3,685,044 km (0.078 R)
• M6: 4,617,338 km (0.085 R)
• M7: 5,556,663 km (0.097 R)
• M8: 6,148,173 km (0.067 R)
• M9: 6,651,271 km (0.097 R)
• M10: 7,492,609 km (0.116 R)
• M11: 7,884,556 km (0.108 R)
• M12: 9,716,980 km (0.078 R)
• M13: 12,106,656 km (0.112 R)
• M14: 12,697,867 km (0.111 R)
• M15: 13,102,679 km (0.085 R)
• M16: 14,314,571 km (0.067 R)
• M17: 15,773,151 km (0.077 R)
• M18: 17,205,251 km (0.116 R)
• M19: 18,722,323 km (0.045 R)
• M20: 19,849,693 km (0.056 R)
• M21: 20,741,894 km (0.099 R)
• M22: 22,902,836 km (0.114 R)
• M23: 24,346,754 km (0.111 R)
• M24: 26,256,221 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 820.9

Radius: 8

Gravity: 12.83 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 7.12 AU - 8.76 AU

Year: 14225 Days

Day: 20 Hours

Environment

Temp: -232 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 90,126,735 km

• M1: 99,632 km (0.032 R)
• M2: 383,120 km (0.109 R)
• M3: 822,190 km (0.078 R)
• M4: 1,178,233 km (0.058 R)
• M5: 2,306,799 km (0.091 R)
• M6: 3,000,484 km (0.094 R)
• M7: 3,382,857 km (0.08 R)
• M8: 5,614,109 km (0.103 R)
• M9: 5,880,991 km (0.116 R)
• M10: 6,481,328 km (0.115 R)
• M11: 6,990,559 km (0.039 R)
• M12: 7,526,119 km (0.099 R)
• M13: 10,112,218 km (0.074 R)
• M14: 11,210,864 km (0.1 R)
• M15: 12,515,657 km (0.12 R)
• M16: 13,104,773 km (0.076 R)
• M17: 14,267,747 km (0.104 R)
• M18: 16,955,123 km (0.072 R)
• M19: 17,595,103 km (0.049 R)
• M20: 18,585,142 km (0.115 R)
• M21: 24,199,101 km (0.066 R)
• M22: 24,501,139 km (0.089 R)
• M23: 25,010,221 km (0.064 R)
• M24: 26,154,944 km (0.065 R)
• M25: 27,225,616 km (0.116 R)
• M26: 32,163,991 km (0.073 R)
• M27: 34,397,338 km (0.105 R)
• M28: 35,551,934 km (0.044 R)
• M29: 40,854,730 km (0.085 R)
• M30: 41,859,279 km (0.068 R)
• M31: 53,165,138 km (0.1 R)
• M32: 55,402,225 km (0.096 R)
• M33: 58,965,198 km (0.117 R)
• M34: 62,678,067 km (0.099 R)
• M35: 63,821,593 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 837.1

Radius: 4.9

Gravity: 34.86 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 10.09 AU - 11.99 AU

Year: 23323 Days

Day: 18.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 90,126,735 km

• M1: 61,186 km (0.059 R)
• M2: 228,586 km (0.077 R)
• M3: 402,867 km (0.067 R)
• M4: 688,449 km (0.053 R)
• M5: 1,756,129 km (0.051 R)
• M6: 2,280,320 km (0.104 R)
• M7: 2,541,668 km (0.03 R)
• M8: 3,181,348 km (0.102 R)
• M9: 4,772,621 km (0.107 R)
• M10: 5,444,764 km (0.079 R)
• M11: 6,451,857 km (0.099 R)
• M12: 9,411,800 km (0.1 R)
• M13: 10,918,700 km (0.068 R)
• M14: 15,127,486 km (0.119 R)
• M15: 16,133,532 km (0.09 R)
• M16: 24,795,249 km (0.089 R)
• M17: 31,352,423 km (0.033 R)
• M18: 33,120,669 km (0.086 R)
• M19: 33,398,473 km (0.081 R)
• M20: 34,810,826 km (0.115 R)
• M21: 35,969,162 km (0.107 R)
• M22: 41,500,245 km (0.093 R)
• M23: 42,473,977 km (0.077 R)
• M24: 55,372,605 km (0.115 R)
• M25: 55,960,375 km (0.08 R)
• M26: 63,554,561 km (0.066 R)
• M27: 76,794,421 km (0.064 R)
• M28: 80,996,925 km (0.105 R)
• M29: 83,026,669 km (0.1 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 445 - 15,524 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit