🌌 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: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.58 AU - 0.62 AU

Year: 305 Days

Day: 43.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,624,881 km

• M1: 73,602 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.3

Radius: 13.2

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.94 AU - 1.12 AU

Year: 686 Days

Day: 6.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 85,624,881 km

• M1: 164,258 km (0.092 R)
• M2: 628,909 km (0.099 R)
• M3: 1,061,846 km (0.113 R)
• M4: 1,753,885 km (0.103 R)
• M5: 2,744,523 km (0.035 R)
• M6: 3,187,482 km (0.112 R)
• M7: 3,721,397 km (0.114 R)
• M8: 4,395,335 km (0.077 R)
• M9: 5,653,902 km (0.082 R)
• M10: 7,162,746 km (0.047 R)
• M11: 7,649,837 km (0.096 R)
• M12: 8,358,781 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.9

Radius: 11.9

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.01 AU - 1.57 AU

Year: 961 Days

Day: 8.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 85,624,881 km

• M1: 147,952 km (0.117 R)
• M2: 596,297 km (0.07 R)
• M3: 1,124,378 km (0.1 R)
• M4: 1,494,932 km (0.048 R)
• M5: 1,986,361 km (0.108 R)
• M6: 2,397,605 km (0.068 R)
• M7: 2,914,915 km (0.087 R)
• M8: 3,633,583 km (0.12 R)
• M9: 4,035,403 km (0.093 R)
• M10: 4,929,250 km (0.089 R)
• M11: 6,258,128 km (0.105 R)
• M12: 7,040,076 km (0.063 R)
• M13: 7,692,323 km (0.113 R)
• M14: 8,082,923 km (0.085 R)
• M15: 9,063,985 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201

Radius: 14.6

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.19 AU - 1.77 AU

Year: 1181 Days

Day: 13.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,624,881 km

• M1: 181,761 km (0.106 R)
• M2: 657,034 km (0.114 R)
• M3: 1,174,642 km (0.115 R)
• M4: 1,649,765 km (0.101 R)
• M5: 2,587,744 km (0.038 R)
• M6: 3,365,204 km (0.086 R)
• M7: 4,043,331 km (0.094 R)
• M8: 4,634,542 km (0.097 R)
• M9: 5,094,256 km (0.106 R)
• M10: 6,559,567 km (0.075 R)
• M11: 7,205,980 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.2

Radius: 13

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.89 AU - 2.13 AU

Year: 1869 Days

Day: 8 Hours

Environment

Temp: -180 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,624,881 km

• M1: 161,715 km (0.105 R)
• M2: 606,021 km (0.06 R)
• M3: 1,056,909 km (0.111 R)
• M4: 2,108,582 km (0.117 R)
• M5: 3,083,063 km (0.108 R)
• M6: 3,546,068 km (0.094 R)
• M7: 4,185,748 km (0.103 R)
• M8: 4,964,705 km (0.119 R)
• M9: 5,378,043 km (0.09 R)
• M10: 5,981,072 km (0.098 R)
• M11: 7,023,770 km (0.073 R)
• M12: 8,333,948 km (0.101 R)
• M13: 10,072,873 km (0.116 R)
• M14: 10,560,862 km (0.092 R)
• M15: 11,285,215 km (0.105 R)
• M16: 11,850,096 km (0.082 R)
• M17: 12,873,944 km (0.085 R)
• M18: 13,616,697 km (0.038 R)
• M19: 14,127,574 km (0.118 R)
• M20: 14,828,590 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.8

Radius: 9.9

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.2 AU - 2.66 AU

Year: 2485 Days

Day: 13.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,624,881 km

• M1: 123,119 km (0.047 R)
• M2: 606,470 km (0.12 R)
• M3: 1,336,208 km (0.107 R)
• M4: 2,796,433 km (0.058 R)
• M5: 3,310,750 km (0.092 R)
• M6: 3,655,274 km (0.036 R)
• M7: 4,199,661 km (0.053 R)
• M8: 4,797,155 km (0.12 R)
• M9: 5,260,759 km (0.071 R)
• M10: 8,352,498 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.9

Radius: 12.5

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.43 AU - 4.65 AU

Year: 5327 Days

Day: 6.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 85,624,881 km

• M1: 155,432 km (0.093 R)
• M2: 923,318 km (0.115 R)
• M3: 1,675,047 km (0.111 R)
• M4: 2,180,688 km (0.112 R)
• M5: 2,673,912 km (0.046 R)
• M6: 3,564,020 km (0.073 R)
• M7: 4,980,861 km (0.047 R)
• M8: 5,519,413 km (0.06 R)
• M9: 6,211,004 km (0.094 R)
• M10: 7,667,489 km (0.062 R)
• M11: 8,709,438 km (0.078 R)
• M12: 10,405,429 km (0.117 R)
• M13: 12,084,217 km (0.102 R)
• M14: 13,591,415 km (0.116 R)
• M15: 13,986,952 km (0.065 R)
• M16: 14,594,918 km (0.038 R)
• M17: 15,009,902 km (0.094 R)
• M18: 17,435,183 km (0.104 R)
• M19: 18,680,286 km (0.107 R)
• M20: 19,730,912 km (0.093 R)
• M21: 20,755,358 km (0.114 R)
• M22: 21,347,018 km (0.095 R)
• M23: 22,910,316 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 222

Radius: 6.8

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.84 AU - 7 AU

Year: 9449 Days

Day: 16.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,624,881 km

• M1: 99,632 km (0.106 R)
• M2: 360,980 km (0.117 R)
• M3: 602,730 km (0.1 R)
• M4: 1,180,028 km (0.099 R)
• M5: 4,453,977 km (0.112 R)
• M6: 5,063,439 km (0.085 R)
• M7: 5,909,565 km (0.115 R)
• M8: 8,295,950 km (0.076 R)
• M9: 10,336,914 km (0.113 R)
• M10: 17,075,849 km (0.082 R)
• M11: 22,450,601 km (0.085 R)
• M12: 25,272,615 km (0.078 R)
• M13: 26,013,424 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 544.2

Radius: 5

Gravity: 21.77 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 9.18 AU - 9.54 AU

Year: 18786 Days

Day: 24.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 85,624,881 km

• M1: 84,373 km (0.059 R)
• M2: 503,696 km (0.101 R)
• M3: 800,947 km (0.069 R)
• M4: 1,743,414 km (0.059 R)
• M5: 2,233,646 km (0.111 R)
• M6: 2,716,249 km (0.073 R)
• M7: 3,108,793 km (0.081 R)
• M8: 3,372,834 km (0.117 R)
• M9: 3,594,687 km (0.11 R)
• M10: 4,192,331 km (0.07 R)
• M11: 5,209,297 km (0.11 R)
• M12: 6,012,638 km (0.076 R)
• M13: 6,297,921 km (0.088 R)
• M14: 7,623,807 km (0.116 R)
• M15: 8,914,687 km (0.054 R)
• M16: 10,115,210 km (0.086 R)
• M17: 11,235,698 km (0.027 R)
• M18: 12,699,662 km (0.112 R)
• M19: 14,575,021 km (0.081 R)
• M20: 16,155,523 km (0.045 R)
• M21: 16,627,355 km (0.091 R)
• M22: 18,606,534 km (0.093 R)
• M23: 26,439,030 km (0.05 R)
• M24: 26,656,246 km (0.111 R)
• M25: 27,204,074 km (0.118 R)
• M26: 27,647,781 km (0.074 R)
• M27: 31,983,726 km (0.045 R)
• M28: 34,119,534 km (0.085 R)
• M29: 36,348,543 km (0.105 R)
• M30: 40,371,678 km (0.107 R)
• M31: 41,239,645 km (0.038 R)
• M32: 44,069,887 km (0.097 R)
• M33: 44,681,892 km (0.057 R)
• M34: 48,635,315 km (0.102 R)
• M35: 57,229,114 km (0.067 R)
• M36: 64,398,592 km (0.104 R)
• M37: 65,980,590 km (0.044 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 681.7

Radius: 5.8

Gravity: 20.26 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 8.83 AU - 13.17 AU

Year: 23933 Days

Day: 21.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 85,624,881 km

• M1: 72,555 km (0.098 R)
• M2: 546,481 km (0.069 R)
• M3: 798,404 km (0.066 R)
• M4: 1,020,856 km (0.07 R)
• M5: 1,240,017 km (0.056 R)
• M6: 2,073,576 km (0.113 R)
• M7: 3,524,526 km (0.077 R)
• M8: 3,867,404 km (0.112 R)
• M9: 4,266,531 km (0.032 R)
• M10: 5,968,506 km (0.118 R)
• M11: 6,921,744 km (0.061 R)
• M12: 9,240,960 km (0.089 R)
• M13: 10,830,587 km (0.051 R)
• M14: 12,451,928 km (0.115 R)
• M15: 12,737,062 km (0.063 R)
• M16: 14,936,151 km (0.068 R)
• M17: 18,923,532 km (0.048 R)
• M18: 22,394,352 km (0.058 R)
• M19: 23,029,096 km (0.1 R)
• M20: 26,383,679 km (0.112 R)
• M21: 28,916,520 km (0.082 R)
• M22: 31,475,242 km (0.102 R)
• M23: 34,181,019 km (0.087 R)
• M24: 37,331,999 km (0.106 R)
• M25: 40,827,652 km (0.044 R)
• M26: 41,615,435 km (0.103 R)
• M27: 52,612,225 km (0.107 R)
• M28: 59,776,317 km (0.104 R)
• M29: 64,754,934 km (0.113 R)
• M30: 77,191,903 km (0.11 R)
• M31: 81,087,731 km (0.039 R)
• M32: 81,832,429 km (0.072 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 337 - 16,853 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit