🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.47 AU - 0.71 AU

Year: 293 Days

Day: 18.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 5.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.49 AU - 0.69 AU

Year: 293 Days

Day: 26.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.61 AU - 0.63 AU

Year: 315 Days

Day: 31.2 Hours

Environment

Temp: -132 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772

Radius: 9.9

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.86 AU - 0.98 AU

Year: 570 Days

Day: 14.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,031,544 km

• M1: 123,119 km (0.056 R)
• M2: 598,541 km (0.091 R)
• M3: 1,109,418 km (0.096 R)
• M4: 1,547,590 km (0.051 R)
• M5: 1,973,944 km (0.094 R)
• M6: 2,467,766 km (0.045 R)
• M7: 2,789,103 km (0.052 R)
• M8: 3,543,226 km (0.115 R)
• M9: 4,726,545 km (0.071 R)
• M10: 5,123,278 km (0.093 R)
• M11: 5,686,963 km (0.096 R)
• M12: 6,097,908 km (0.094 R)
• M13: 6,589,038 km (0.094 R)
• M14: 7,106,348 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.6

Radius: 8

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.11 AU - 1.71 AU

Year: 1081 Days

Day: 14.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,031,544 km

• M1: 99,632 km (0.093 R)
• M2: 533,167 km (0.111 R)
• M3: 1,567,486 km (0.045 R)
• M4: 3,232,960 km (0.112 R)
• M5: 4,086,116 km (0.093 R)
• M6: 4,446,348 km (0.096 R)
• M7: 4,703,955 km (0.069 R)
• M8: 5,008,088 km (0.065 R)
• M9: 5,382,681 km (0.032 R)
• M10: 6,145,780 km (0.103 R)
• M11: 7,163,943 km (0.106 R)
• M12: 7,639,963 km (0.1 R)
• M13: 8,708,391 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.7

Radius: 8

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.22 AU - 1.72 AU

Year: 1151 Days

Day: 12.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,031,544 km

• M1: 99,632 km (0.084 R)
• M2: 498,909 km (0.059 R)
• M3: 827,725 km (0.063 R)
• M4: 1,566,738 km (0.073 R)
• M5: 2,619,010 km (0.104 R)
• M6: 2,925,237 km (0.114 R)
• M7: 5,149,757 km (0.114 R)
• M8: 5,406,317 km (0.087 R)
• M9: 5,885,479 km (0.103 R)
• M10: 6,413,710 km (0.112 R)
• M11: 7,287,361 km (0.117 R)
• M12: 8,438,068 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.8

Radius: 14

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.38 AU - 1.74 AU

Year: 1258 Days

Day: 6 Hours

Environment

Temp: -189 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,031,544 km

• M1: 174,132 km (0.067 R)
• M2: 755,768 km (0.03 R)
• M3: 1,532,331 km (0.081 R)
• M4: 1,967,810 km (0.11 R)
• M5: 3,491,465 km (0.083 R)
• M6: 5,096,051 km (0.091 R)

Asteroid Belt

Center: 2.63 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.7

Radius: 12.2

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.59 AU - 3.79 AU

Year: 4577 Days

Day: 9.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,031,544 km

• M1: 152,440 km (0.074 R)
• M2: 543,489 km (0.112 R)
• M3: 1,172,997 km (0.072 R)
• M4: 1,575,864 km (0.034 R)
• M5: 2,048,444 km (0.098 R)
• M6: 2,629,931 km (0.075 R)
• M7: 3,387,793 km (0.107 R)
• M8: 3,781,385 km (0.108 R)
• M9: 4,367,959 km (0.115 R)
• M10: 4,946,902 km (0.101 R)
• M11: 7,255,497 km (0.091 R)
• M12: 8,258,850 km (0.082 R)
• M13: 8,944,008 km (0.096 R)
• M14: 9,808,833 km (0.107 R)
• M15: 10,502,668 km (0.08 R)
• M16: 11,988,624 km (0.06 R)
• M17: 12,739,455 km (0.071 R)
• M18: 17,494,873 km (0.079 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.5

Radius: 14.8

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 4.31 AU - 6.97 AU

Year: 8648 Days

Day: 5.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 58,031,544 km

• M1: 184,155 km (0.108 R)
• M2: 716,125 km (0.115 R)
• M3: 1,196,035 km (0.114 R)
• M4: 2,028,098 km (0.108 R)
• M5: 3,407,989 km (0.107 R)
• M6: 4,526,383 km (0.11 R)
• M7: 5,346,179 km (0.063 R)
• M8: 5,809,185 km (0.063 R)
• M9: 9,318,900 km (0.044 R)
• M10: 9,797,015 km (0.1 R)
• M11: 10,596,316 km (0.097 R)
• M12: 11,492,856 km (0.084 R)
• M13: 11,987,577 km (0.115 R)
• M14: 12,785,681 km (0.119 R)
• M15: 13,317,202 km (0.107 R)
• M16: 17,247,438 km (0.116 R)
• M17: 22,654,802 km (0.034 R)
• M18: 23,522,320 km (0.082 R)
• M19: 25,047,770 km (0.1 R)
• M20: 25,508,681 km (0.105 R)
• M21: 29,916,732 km (0.055 R)
• M22: 31,279,120 km (0.101 R)
• M23: 31,921,642 km (0.113 R)
• M24: 33,566,770 km (0.119 R)
• M25: 38,718,173 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708

Radius: 7.1

Gravity: 14.04 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 6.85 AU - 8.03 AU

Year: 13103 Days

Day: 21 Hours

Environment

Temp: -218 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 58,031,544 km

• M1: 90,058 km (0.11 R)
• M2: 426,204 km (0.104 R)
• M3: 811,868 km (0.105 R)
• M4: 2,426,477 km (0.092 R)
• M5: 4,259,650 km (0.086 R)
• M6: 4,857,742 km (0.083 R)
• M7: 5,439,079 km (0.111 R)
• M8: 5,951,901 km (0.066 R)
• M9: 8,472,924 km (0.093 R)
• M10: 9,571,721 km (0.099 R)
• M11: 9,993,886 km (0.113 R)
• M12: 10,706,420 km (0.092 R)
• M13: 12,729,582 km (0.12 R)
• M14: 14,099,300 km (0.119 R)
• M15: 15,927,685 km (0.06 R)
• M16: 16,296,594 km (0.116 R)
• M17: 17,593,607 km (0.096 R)
• M18: 18,227,304 km (0.071 R)
• M19: 20,478,303 km (0.109 R)
• M20: 21,357,041 km (0.069 R)
• M21: 23,473,252 km (0.101 R)
• M22: 25,323,778 km (0.055 R)
• M23: 28,010,556 km (0.079 R)
• M24: 28,983,241 km (0.109 R)
• M25: 30,314,961 km (0.101 R)
• M26: 32,270,654 km (0.11 R)
• M27: 33,580,084 km (0.037 R)
• M28: 35,547,296 km (0.103 R)
• M29: 36,686,933 km (0.051 R)
• M30: 38,640,232 km (0.086 R)
• M31: 42,752,678 km (0.105 R)
• M32: 43,752,590 km (0.077 R)
• M33: 49,924,400 km (0.117 R)
• M34: 51,192,691 km (0.11 R)
• M35: 52,320,060 km (0.093 R)
• M36: 52,971,559 km (0.12 R)
• M37: 56,823,255 km (0.079 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 278 - 13,145 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit