🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.6

Radius: 15

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.7 AU - 0.7 AU

Year: 372 Days

Day: 10.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,100,785 km

• M1: 186,549 km (0.088 R)
• M2: 731,683 km (0.115 R)
• M3: 1,308,233 km (0.114 R)
• M4: 2,176,350 km (0.069 R)
• M5: 2,799,874 km (0.073 R)
• M6: 3,416,815 km (0.068 R)
• M7: 4,465,796 km (0.099 R)
• M8: 5,000,010 km (0.101 R)

Asteroid Belt

Center: 1.18 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.1

Radius: 13.8

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.56 AU - 1.74 AU

Year: 1348 Days

Day: 14.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,100,785 km

• M1: 171,589 km (0.101 R)
• M2: 882,328 km (0.108 R)
• M3: 1,365,380 km (0.12 R)
• M4: 1,828,535 km (0.054 R)
• M5: 2,454,602 km (0.06 R)
• M6: 2,953,511 km (0.111 R)
• M7: 3,476,505 km (0.111 R)
• M8: 3,916,921 km (0.09 R)
• M9: 4,481,204 km (0.114 R)
• M10: 4,930,297 km (0.111 R)
• M11: 5,691,750 km (0.091 R)
• M12: 7,086,152 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.8

Radius: 9.4

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.73 AU - 2.59 AU

Year: 2018 Days

Day: 10.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,100,785 km

• M1: 117,135 km (0.115 R)
• M2: 434,283 km (0.073 R)
• M3: 894,146 km (0.119 R)
• M4: 1,284,747 km (0.093 R)
• M5: 1,857,407 km (0.104 R)
• M6: 2,529,102 km (0.088 R)
• M7: 3,764,182 km (0.1 R)
• M8: 4,627,212 km (0.062 R)
• M9: 4,955,729 km (0.112 R)
• M10: 5,530,783 km (0.115 R)
• M11: 5,945,917 km (0.068 R)
• M12: 6,571,685 km (0.105 R)
• M13: 7,240,537 km (0.074 R)
• M14: 7,604,957 km (0.084 R)
• M15: 8,627,309 km (0.103 R)
• M16: 9,337,749 km (0.032 R)
• M17: 10,574,774 km (0.114 R)
• M18: 11,633,478 km (0.099 R)
• M19: 12,134,182 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.5

Radius: 13.8

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.8 AU - 2.62 AU

Year: 2089 Days

Day: 11 Hours

Environment

Temp: -191 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,100,785 km

• M1: 172,486 km (0.084 R)
• M2: 749,785 km (0.059 R)
• M3: 1,661,733 km (0.05 R)
• M4: 2,729,712 km (0.086 R)
• M5: 3,566,264 km (0.094 R)
• M6: 4,005,932 km (0.084 R)
• M7: 5,069,872 km (0.115 R)
• M8: 5,810,232 km (0.082 R)
• M9: 8,339,632 km (0.108 R)
• M10: 9,429,752 km (0.086 R)
• M11: 10,009,444 km (0.059 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 212.4

Radius: 7.4

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 5.61 AU - 6.57 AU

Year: 9556 Days

Day: 15.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,100,785 km

• M1: 134,937 km (0.086 R)
• M2: 408,253 km (0.079 R)
• M3: 795,861 km (0.118 R)
• M4: 1,460,823 km (0.053 R)
• M5: 2,951,716 km (0.091 R)
• M6: 3,206,780 km (0.026 R)
• M7: 3,716,759 km (0.114 R)
• M8: 5,061,195 km (0.114 R)
• M9: 8,591,705 km (0.062 R)
• M10: 10,491,448 km (0.086 R)
• M11: 14,756,783 km (0.111 R)
• M12: 29,089,904 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 202.9

Radius: 8

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 6.12 AU - 8.12 AU

Year: 12080 Days

Day: 20 Hours

Environment

Temp: -223 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 67,100,785 km

• M1: 99,931 km (0.096 R)
• M2: 429,495 km (0.109 R)
• M3: 1,446,163 km (0.058 R)
• M4: 1,743,862 km (0.12 R)
• M5: 2,036,027 km (0.063 R)
• M6: 2,395,212 km (0.106 R)
• M7: 2,993,154 km (0.112 R)
• M8: 3,459,152 km (0.116 R)
• M9: 3,709,878 km (0.066 R)
• M10: 4,377,533 km (0.077 R)
• M11: 4,921,920 km (0.107 R)
• M12: 8,262,590 km (0.036 R)
• M13: 9,008,036 km (0.08 R)
• M14: 9,529,384 km (0.063 R)
• M15: 10,116,706 km (0.081 R)
• M16: 10,442,829 km (0.056 R)
• M17: 11,463,535 km (0.111 R)
• M18: 12,127,750 km (0.065 R)
• M19: 12,925,854 km (0.108 R)
• M20: 13,929,207 km (0.105 R)
• M21: 14,391,465 km (0.074 R)
• M22: 17,184,607 km (0.081 R)
• M23: 18,465,464 km (0.093 R)
• M24: 20,319,729 km (0.034 R)
• M25: 25,151,142 km (0.112 R)
• M26: 27,967,920 km (0.094 R)
• M27: 28,703,792 km (0.107 R)
• M28: 31,282,411 km (0.075 R)
• M29: 34,219,765 km (0.095 R)
• M30: 35,380,495 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 329.1

Radius: 6.5

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 9.27 AU - 13.17 AU

Year: 23896 Days

Day: 18.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,100,785 km

• M1: 83,476 km (0.081 R)
• M2: 316,250 km (0.106 R)
• M3: 896,241 km (0.081 R)
• M4: 1,327,980 km (0.115 R)
• M5: 2,135,958 km (0.114 R)
• M6: 2,467,467 km (0.116 R)
• M7: 4,117,831 km (0.087 R)
• M8: 5,635,501 km (0.112 R)
• M9: 6,147,425 km (0.115 R)
• M10: 7,354,531 km (0.065 R)
• M11: 8,866,965 km (0.039 R)
• M12: 9,076,103 km (0.042 R)
• M13: 10,401,241 km (0.114 R)
• M14: 21,154,037 km (0.116 R)
• M15: 23,266,209 km (0.09 R)
• M16: 26,692,150 km (0.115 R)
• M17: 29,850,759 km (0.076 R)
• M18: 36,629,338 km (0.112 R)
• M19: 39,945,923 km (0.111 R)
• M20: 46,065,224 km (0.109 R)
• M21: 59,190,642 km (0.067 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 466 - 20,002 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit