🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.46 AU - 0.68 AU

Year: 278 Days

Day: 14.1 Hours

Environment

Temp: -118 °C

Axial Tilt: 60 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.7

Radius: 13

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.87 AU - 1.25 AU

Year: 705 Days

Day: 6.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,118,657 km

• M1: 161,715 km (0.04 R)
• M2: 666,309 km (0.068 R)
• M3: 1,168,359 km (0.04 R)
• M4: 2,588,043 km (0.057 R)
• M5: 3,064,961 km (0.077 R)
• M6: 3,600,671 km (0.095 R)
• M7: 4,879,135 km (0.088 R)
• M8: 5,354,706 km (0.071 R)
• M9: 6,862,503 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.4

Radius: 13.8

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.02 AU - 1.24 AU

Year: 776 Days

Day: 13.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,118,657 km

• M1: 175,179 km (0.111 R)
• M2: 733,778 km (0.074 R)
• M3: 1,221,317 km (0.115 R)
• M4: 1,692,401 km (0.112 R)
• M5: 2,967,723 km (0.109 R)
• M6: 3,781,385 km (0.088 R)
• M7: 4,549,122 km (0.078 R)
• M8: 6,614,171 km (0.106 R)
• M9: 7,157,660 km (0.109 R)
• M10: 7,608,996 km (0.113 R)
• M11: 8,206,490 km (0.102 R)
• M12: 9,467,301 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561

Radius: 13.2

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.28 AU - 1.3 AU

Year: 946 Days

Day: 5.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,118,657 km

• M1: 164,258 km (0.099 R)
• M2: 576,849 km (0.107 R)
• M3: 1,420,881 km (0.108 R)
• M4: 1,858,006 km (0.098 R)
• M5: 2,629,931 km (0.096 R)
• M6: 3,976,760 km (0.046 R)
• M7: 4,488,086 km (0.096 R)
• M8: 5,318,952 km (0.111 R)
• M9: 5,821,152 km (0.103 R)
• M10: 6,312,731 km (0.09 R)
• M11: 6,988,913 km (0.099 R)
• M12: 7,474,059 km (0.119 R)
• M13: 7,956,961 km (0.077 R)
• M14: 8,615,790 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.1

Radius: 9.5

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.44 AU - 1.88 AU

Year: 1381 Days

Day: 7.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,118,657 km

• M1: 118,781 km (0.093 R)
• M2: 511,026 km (0.119 R)
• M3: 835,355 km (0.065 R)
• M4: 1,135,897 km (0.088 R)
• M5: 1,570,478 km (0.095 R)
• M6: 1,967,362 km (0.078 R)
• M7: 2,371,575 km (0.09 R)
• M8: 2,714,005 km (0.065 R)
• M9: 3,654,526 km (0.077 R)
• M10: 4,519,501 km (0.098 R)
• M11: 4,874,647 km (0.069 R)
• M12: 6,256,183 km (0.1 R)
• M13: 6,627,186 km (0.118 R)
• M14: 6,988,165 km (0.106 R)
• M15: 8,042,830 km (0.088 R)
• M16: 9,024,043 km (0.077 R)
• M17: 9,348,521 km (0.079 R)
• M18: 9,711,146 km (0.086 R)
• M19: 10,889,229 km (0.047 R)
• M20: 11,358,817 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.9

Radius: 9.1

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 4.75 AU - 5.29 AU

Year: 7262 Days

Day: 9.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 42,118,657 km

• M1: 113,246 km (0.094 R)
• M2: 801,246 km (0.111 R)
• M3: 1,127,370 km (0.079 R)
• M4: 1,518,269 km (0.089 R)
• M5: 1,923,978 km (0.118 R)
• M6: 2,975,202 km (0.043 R)
• M7: 3,480,544 km (0.053 R)
• M8: 4,967,547 km (0.096 R)
• M9: 5,963,869 km (0.089 R)
• M10: 6,391,120 km (0.054 R)
• M11: 8,108,205 km (0.062 R)
• M12: 8,469,035 km (0.03 R)
• M13: 9,930,456 km (0.064 R)
• M14: 14,249,646 km (0.084 R)
• M15: 15,559,226 km (0.113 R)
• M16: 16,496,905 km (0.117 R)
• M17: 17,471,984 km (0.097 R)
• M18: 18,900,793 km (0.082 R)
• M19: 22,692,651 km (0.103 R)
• M20: 23,734,600 km (0.104 R)
• M21: 27,768,506 km (0.107 R)
• M22: 29,146,452 km (0.109 R)
• M23: 30,185,410 km (0.081 R)
• M24: 32,337,375 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 474.6

Radius: 8

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 6.13 AU - 6.21 AU

Year: 9896 Days

Day: 15.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 42,118,657 km

• M1: 100,231 km (0.111 R)
• M2: 461,509 km (0.104 R)
• M3: 780,003 km (0.086 R)
• M4: 1,303,446 km (0.091 R)
• M5: 1,765,554 km (0.113 R)
• M6: 2,460,137 km (0.071 R)
• M7: 3,038,034 km (0.053 R)
• M8: 3,582,121 km (0.091 R)
• M9: 4,775,613 km (0.047 R)
• M10: 5,073,313 km (0.109 R)
• M11: 5,479,022 km (0.038 R)
• M12: 6,533,837 km (0.11 R)
• M13: 7,439,203 km (0.032 R)
• M14: 9,497,071 km (0.084 R)
• M15: 10,065,394 km (0.095 R)
• M16: 12,125,057 km (0.107 R)
• M17: 13,022,345 km (0.109 R)
• M18: 13,428,653 km (0.11 R)
• M19: 14,205,365 km (0.059 R)
• M20: 14,698,140 km (0.117 R)
• M21: 17,334,653 km (0.1 R)
• M22: 18,327,385 km (0.093 R)
• M23: 18,764,211 km (0.094 R)
• M24: 22,512,984 km (0.08 R)
• M25: 24,299,631 km (0.106 R)
• M26: 28,734,310 km (0.056 R)
• M27: 29,225,290 km (0.04 R)
• M28: 31,244,862 km (0.063 R)
• M29: 31,973,104 km (0.083 R)
• M30: 32,819,379 km (0.105 R)
• M31: 33,571,857 km (0.054 R)
• M32: 35,785,456 km (0.025 R)
• M33: 36,582,663 km (0.108 R)
• M34: 41,491,568 km (0.097 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 447 - 13,795 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit