🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.62 AU - 0.7 AU

Year: 195 Days

Day: 26.1 Hours

Environment

Temp: 154 °C

Axial Tilt: 28.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 52,534,395 km

• M1: 160,519 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1 AU - 1.1 AU

Year: 391 Days

Day: 41.4 Hours

Environment

Temp: 38 °C

Axial Tilt: 22.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.98 AU - 3.14 AU

Year: 1945 Days

Day: 41.2 Hours

Environment

Temp: -97 °C

Axial Tilt: 2.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.8

Radius: 10.3

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 4.63 AU - 5.59 AU

Year: 4198 Days

Day: 11.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,534,395 km

• M1: 128,056 km (0.083 R)
• M2: 560,693 km (0.096 R)
• M3: 897,138 km (0.058 R)
• M4: 2,386,984 km (0.108 R)
• M5: 3,139,461 km (0.101 R)
• M6: 4,494,070 km (0.117 R)
• M7: 5,474,684 km (0.055 R)
• M8: 7,915,223 km (0.09 R)
• M9: 8,248,827 km (0.109 R)
• M10: 8,687,148 km (0.036 R)
• M11: 9,173,940 km (0.108 R)
• M12: 12,124,309 km (0.083 R)
• M13: 13,276,512 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.6

Radius: 11.2

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 6.68 AU - 7.04 AU

Year: 6530 Days

Day: 10.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,534,395 km

• M1: 139,276 km (0.047 R)
• M2: 797,805 km (0.1 R)
• M3: 2,122,046 km (0.059 R)
• M4: 2,534,338 km (0.091 R)
• M5: 3,355,779 km (0.116 R)
• M6: 4,297,348 km (0.099 R)
• M7: 4,909,952 km (0.083 R)
• M8: 5,464,212 km (0.106 R)
• M9: 6,341,603 km (0.115 R)
• M10: 6,731,156 km (0.102 R)
• M11: 8,529,921 km (0.094 R)
• M12: 9,167,956 km (0.053 R)
• M13: 12,390,294 km (0.101 R)
• M14: 13,738,919 km (0.108 R)
• M15: 16,060,678 km (0.106 R)
• M16: 17,535,114 km (0.09 R)
• M17: 20,051,351 km (0.081 R)
• M18: 22,648,669 km (0.117 R)
• M19: 23,872,080 km (0.036 R)
• M20: 26,953,348 km (0.069 R)
• M21: 27,634,317 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.5

Radius: 9.2

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 6.69 AU - 7.29 AU

Year: 6717 Days

Day: 5.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,534,395 km

• M1: 115,789 km (0.068 R)
• M2: 619,485 km (0.118 R)
• M3: 1,760,917 km (0.074 R)
• M4: 3,654,676 km (0.057 R)
• M5: 4,610,008 km (0.028 R)
• M6: 5,121,932 km (0.113 R)
• M7: 8,608,759 km (0.077 R)
• M8: 9,829,029 km (0.025 R)
• M9: 13,286,684 km (0.099 R)
• M10: 15,011,099 km (0.106 R)
• M11: 17,205,550 km (0.073 R)
• M12: 18,208,604 km (0.094 R)
• M13: 19,965,930 km (0.025 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.6

Radius: 14.3

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 8.39 AU - 10.81 AU

Year: 10810 Days

Day: 7.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,534,395 km

• M1: 184,005 km (0.088 R)
• M2: 719,715 km (0.034 R)
• M3: 1,193,941 km (0.112 R)
• M4: 1,778,868 km (0.053 R)
• M5: 2,880,058 km (0.114 R)
• M6: 10,521,667 km (0.053 R)
• M7: 14,938,694 km (0.11 R)
• M8: 15,472,908 km (0.096 R)
• M9: 17,152,892 km (0.056 R)
• M10: 21,880,783 km (0.087 R)
• M11: 22,483,513 km (0.116 R)
• M12: 24,358,722 km (0.089 R)
• M13: 28,215,804 km (0.042 R)
• M14: 32,130,182 km (0.064 R)
• M15: 33,360,475 km (0.074 R)
• M16: 37,361,919 km (0.105 R)
• M17: 39,604,839 km (0.073 R)
• M18: 40,371,977 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387

Radius: 12.7

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 11.07 AU - 13.53 AU

Year: 15678 Days

Day: 13.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,534,395 km

• M1: 159,023 km (0.098 R)
• M2: 603,927 km (0.106 R)
• M3: 1,512,883 km (0.096 R)
• M4: 2,708,320 km (0.084 R)
• M5: 3,596,034 km (0.056 R)
• M6: 4,164,954 km (0.068 R)
• M7: 4,984,302 km (0.101 R)
• M8: 5,381,634 km (0.106 R)
• M9: 6,507,956 km (0.046 R)
• M10: 7,398,512 km (0.096 R)
• M11: 7,917,467 km (0.064 R)
• M12: 8,694,479 km (0.08 R)
• M13: 12,499,949 km (0.115 R)
• M14: 12,926,902 km (0.105 R)
• M15: 14,598,807 km (0.119 R)
• M16: 17,903,125 km (0.098 R)
• M17: 19,647,287 km (0.116 R)
• M18: 21,070,860 km (0.049 R)
• M19: 27,252,992 km (0.086 R)
• M20: 33,600,729 km (0.118 R)
• M21: 34,666,614 km (0.095 R)
• M22: 36,990,916 km (0.032 R)
• M23: 38,639,933 km (0.089 R)
• M24: 43,601,047 km (0.113 R)
• M25: 45,872,093 km (0.049 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 122.5

Radius: 4.3

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 14.34 AU - 21.12 AU

Year: 27133 Days

Day: 24.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 52,534,395 km

• M1: 53,556 km (0.08 R)
• M2: 402,269 km (0.106 R)
• M3: 761,004 km (0.094 R)
• M4: 1,030,131 km (0.087 R)
• M5: 1,281,156 km (0.104 R)
• M6: 1,888,524 km (0.118 R)
• M7: 3,190,623 km (0.106 R)
• M8: 3,886,403 km (0.096 R)
• M9: 4,082,227 km (0.111 R)
• M10: 4,523,989 km (0.059 R)
• M11: 4,899,779 km (0.1 R)
• M12: 5,262,404 km (0.069 R)
• M13: 5,398,538 km (0.075 R)
• M14: 10,722,727 km (0.078 R)
• M15: 11,503,029 km (0.03 R)
• M16: 14,666,575 km (0.115 R)
• M17: 16,995,814 km (0.081 R)
• M18: 20,553,401 km (0.07 R)
• M19: 23,826,602 km (0.1 R)
• M20: 24,199,999 km (0.026 R)
• M21: 25,150,544 km (0.069 R)
• M22: 26,522,655 km (0.079 R)
• M23: 29,308,467 km (0.107 R)
• M24: 31,159,142 km (0.075 R)
• M25: 31,717,890 km (0.119 R)
• M26: 35,574,523 km (0.097 R)
• M27: 38,567,677 km (0.117 R)
• M28: 39,732,147 km (0.089 R)
• M29: 39,993,944 km (0.101 R)
• M30: 41,589,704 km (0.03 R)
• M31: 41,859,728 km (0.118 R)
• M32: 43,922,084 km (0.107 R)
• M33: 49,146,341 km (0.115 R)

Kuiper Belt

Range: 30.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 15,663 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit