🌌 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: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.49 AU - 0.69 AU

Year: 297 Days

Day: 13.4 Hours

Environment

Temp: -126 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,597,177 km

• M1: 30,368 km (0.084 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.54 AU - 0.76 AU

Year: 344 Days

Day: 23.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,597,177 km

• M1: 18,550 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.5

Radius: 13.4

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.78 AU - 0.8 AU

Year: 461 Days

Day: 7.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 84,597,177 km

• M1: 166,652 km (0.113 R)
• M2: 593,305 km (0.119 R)
• M3: 2,061,608 km (0.103 R)
• M4: 2,576,674 km (0.099 R)
• M5: 3,870,845 km (0.098 R)
• M6: 4,595,347 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.7

Radius: 11.5

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.78 AU - 1.08 AU

Year: 588 Days

Day: 13.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 84,597,177 km

• M1: 144,212 km (0.092 R)
• M2: 516,412 km (0.091 R)
• M3: 985,102 km (0.06 R)
• M4: 1,384,528 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.7

Radius: 8

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.1 AU - 1.64 AU

Year: 1052 Days

Day: 12.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 177 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,597,177 km

• M1: 99,483 km (0.102 R)
• M2: 417,228 km (0.109 R)
• M3: 715,227 km (0.061 R)
• M4: 980,614 km (0.102 R)
• M5: 1,396,047 km (0.08 R)
• M6: 1,720,226 km (0.08 R)
• M7: 1,973,794 km (0.082 R)
• M8: 2,274,037 km (0.06 R)
• M9: 2,677,203 km (0.092 R)
• M10: 3,113,880 km (0.073 R)
• M11: 3,537,840 km (0.107 R)
• M12: 3,872,790 km (0.077 R)
• M13: 4,695,578 km (0.096 R)
• M14: 4,950,792 km (0.099 R)
• M15: 5,234,729 km (0.054 R)
• M16: 5,981,671 km (0.085 R)
• M17: 6,303,905 km (0.113 R)
• M18: 6,683,285 km (0.049 R)
• M19: 7,611,091 km (0.102 R)
• M20: 8,067,364 km (0.084 R)
• M21: 9,779,362 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.7

Radius: 11.8

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.09 AU - 1.73 AU

Year: 1098 Days

Day: 11 Hours

Environment

Temp: -176 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,597,177 km

• M1: 146,756 km (0.113 R)
• M2: 529,427 km (0.114 R)
• M3: 975,827 km (0.028 R)
• M4: 1,918,443 km (0.116 R)
• M5: 2,300,516 km (0.105 R)
• M6: 3,436,263 km (0.107 R)
• M7: 4,104,816 km (0.117 R)
• M8: 4,951,690 km (0.12 R)
• M9: 5,619,345 km (0.054 R)
• M10: 6,257,679 km (0.073 R)
• M11: 6,943,585 km (0.099 R)
• M12: 7,578,179 km (0.06 R)
• M13: 8,013,659 km (0.112 R)
• M14: 8,767,482 km (0.118 R)
• M15: 9,363,480 km (0.043 R)
• M16: 9,895,750 km (0.079 R)
• M17: 10,323,450 km (0.039 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 478

Radius: 5.1

Gravity: 18.38 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7.27 AU - 7.89 AU

Year: 13690 Days

Day: 15.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 84,597,177 km

• M1: 65,524 km (0.11 R)
• M2: 358,736 km (0.109 R)
• M3: 734,226 km (0.111 R)
• M4: 911,350 km (0.111 R)
• M5: 1,593,217 km (0.078 R)
• M6: 2,121,148 km (0.096 R)
• M7: 2,736,893 km (0.101 R)
• M8: 5,126,270 km (0.057 R)
• M9: 5,926,170 km (0.093 R)
• M10: 7,902,208 km (0.107 R)
• M11: 8,353,396 km (0.076 R)
• M12: 8,726,642 km (0.096 R)
• M13: 10,278,571 km (0.11 R)
• M14: 12,360,973 km (0.114 R)
• M15: 14,708,612 km (0.084 R)
• M16: 15,115,369 km (0.062 R)
• M17: 15,669,479 km (0.1 R)
• M18: 15,951,471 km (0.096 R)
• M19: 17,188,047 km (0.093 R)
• M20: 19,686,481 km (0.119 R)
• M21: 21,974,730 km (0.109 R)
• M22: 25,681,167 km (0.083 R)
• M23: 27,990,510 km (0.057 R)
• M24: 30,325,433 km (0.115 R)
• M25: 38,613,454 km (0.077 R)
• M26: 40,039,571 km (0.057 R)
• M27: 43,827,239 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 352.1

Radius: 7.8

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 7.61 AU - 11.87 AU

Year: 19941 Days

Day: 18 Hours

Environment

Temp: -238 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 84,597,177 km

• M1: 97,089 km (0.08 R)
• M2: 350,508 km (0.038 R)
• M3: 627,862 km (0.103 R)
• M4: 1,227,301 km (0.075 R)
• M5: 1,578,258 km (0.033 R)
• M6: 2,400,896 km (0.071 R)
• M7: 2,906,986 km (0.082 R)
• M8: 4,072,054 km (0.065 R)
• M9: 4,661,170 km (0.064 R)
• M10: 5,027,536 km (0.071 R)
• M11: 6,688,521 km (0.068 R)
• M12: 7,286,164 km (0.041 R)
• M13: 8,248,527 km (0.076 R)
• M14: 10,705,822 km (0.084 R)
• M15: 11,703,490 km (0.079 R)
• M16: 13,479,666 km (0.111 R)
• M17: 13,882,383 km (0.079 R)
• M18: 14,362,443 km (0.083 R)
• M19: 16,699,162 km (0.105 R)
• M20: 17,163,962 km (0.113 R)
• M21: 17,478,417 km (0.073 R)
• M22: 19,703,685 km (0.089 R)
• M23: 20,928,742 km (0.1 R)
• M24: 21,559,896 km (0.054 R)
• M25: 22,577,460 km (0.096 R)
• M26: 24,015,993 km (0.088 R)
• M27: 24,508,769 km (0.104 R)
• M28: 25,008,276 km (0.11 R)
• M29: 26,968,756 km (0.115 R)
• M30: 28,149,383 km (0.112 R)
• M31: 29,927,652 km (0.119 R)
• M32: 35,328,285 km (0.079 R)
• M33: 46,166,651 km (0.041 R)
• M34: 46,928,553 km (0.094 R)
• M35: 55,870,766 km (0.045 R)
• M36: 56,562,057 km (0.082 R)
• M37: 60,830,833 km (0.071 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 818.9

Radius: 5.8

Gravity: 24.34 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 9.25 AU - 11.69 AU

Year: 22224 Days

Day: 23.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 84,597,177 km

• M1: 72,405 km (0.039 R)
• M2: 314,754 km (0.108 R)
• M3: 497,413 km (0.076 R)
• M4: 1,006,494 km (0.099 R)
• M5: 1,345,184 km (0.083 R)
• M6: 2,183,381 km (0.093 R)
• M7: 2,676,007 km (0.12 R)
• M8: 4,710,538 km (0.045 R)
• M9: 5,908,218 km (0.068 R)
• M10: 6,394,262 km (0.065 R)
• M11: 6,717,244 km (0.069 R)
• M12: 7,648,939 km (0.059 R)
• M13: 10,763,268 km (0.079 R)
• M14: 11,554,940 km (0.083 R)
• M15: 14,790,741 km (0.084 R)
• M16: 18,123,184 km (0.072 R)
• M17: 28,881,814 km (0.112 R)
• M18: 29,891,001 km (0.096 R)
• M19: 31,713,552 km (0.102 R)
• M20: 33,471,028 km (0.053 R)
• M21: 40,055,279 km (0.042 R)
• M22: 41,786,575 km (0.106 R)
• M23: 42,428,350 km (0.064 R)
• M24: 45,061,123 km (0.078 R)
• M25: 47,278,911 km (0.029 R)
• M26: 60,891,719 km (0.078 R)
• M27: 62,967,240 km (0.032 R)
• M28: 63,810,523 km (0.076 R)
• M29: 68,583,593 km (0.072 R)
• M30: 77,378,751 km (0.113 R)
• M31: 82,547,357 km (0.07 R)
• M32: 83,304,023 km (0.109 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 743.1

Radius: 5.7

Gravity: 22.87 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 8.57 AU - 12.55 AU

Year: 22512 Days

Day: 18.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 84,597,177 km

• M1: 75,098 km (0.09 R)
• M2: 361,877 km (0.101 R)
• M3: 588,967 km (0.096 R)
• M4: 1,167,911 km (0.09 R)
• M5: 2,196,994 km (0.089 R)
• M6: 2,892,924 km (0.077 R)
• M7: 3,726,034 km (0.116 R)
• M8: 4,080,581 km (0.084 R)
• M9: 9,072,662 km (0.066 R)
• M10: 11,283,419 km (0.095 R)
• M11: 13,454,832 km (0.088 R)
• M12: 21,005,785 km (0.114 R)
• M13: 24,593,441 km (0.117 R)
• M14: 30,068,873 km (0.109 R)
• M15: 44,164,882 km (0.076 R)
• M16: 51,615,005 km (0.109 R)
• M17: 52,164,030 km (0.112 R)
• M18: 65,462,233 km (0.075 R)
• M19: 79,626,309 km (0.12 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 13,880 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit