🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.71 AU - 0.75 AU

Year: 239 Days

Day: 25.9 Hours

Environment

Temp: 142 °C

Axial Tilt: 28.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 50,990,338 km

• M1: 322,683 km (0.058 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.18 AU - 1.9 AU

Year: 732 Days

Day: 32.3 Hours

Environment

Temp: -49 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.79 AU - 1.81 AU

Year: 925 Days

Day: 16 Hours

Environment

Temp: -70 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 6.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.4

Radius: 13

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 5.32 AU - 8.6 AU

Year: 7030 Days

Day: 7.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,990,338 km

• M1: 161,715 km (0.095 R)
• M2: 781,050 km (0.088 R)
• M3: 1,766,452 km (0.099 R)
• M4: 2,328,491 km (0.103 R)
• M5: 3,219,645 km (0.113 R)
• M6: 3,891,041 km (0.09 R)
• M7: 6,982,929 km (0.081 R)
• M8: 8,914,088 km (0.11 R)
• M9: 9,676,738 km (0.101 R)
• M10: 11,538,933 km (0.089 R)
• M11: 13,745,950 km (0.103 R)
• M12: 15,011,249 km (0.114 R)
• M13: 16,026,270 km (0.117 R)
• M14: 18,405,624 km (0.11 R)
• M15: 19,199,840 km (0.099 R)
• M16: 22,200,623 km (0.073 R)
• M17: 24,799,138 km (0.082 R)
• M18: 28,348,497 km (0.119 R)
• M19: 28,826,762 km (0.096 R)
• M20: 34,775,521 km (0.119 R)
• M21: 36,213,007 km (0.072 R)
• M22: 38,501,406 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.5

Radius: 12.2

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 6.72 AU - 7.72 AU

Year: 7428 Days

Day: 10.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 50,990,338 km

• M1: 155,881 km (0.098 R)
• M2: 711,039 km (0.112 R)
• M3: 1,498,223 km (0.059 R)
• M4: 2,031,689 km (0.097 R)
• M5: 2,503,820 km (0.063 R)
• M6: 3,091,141 km (0.049 R)
• M7: 4,221,502 km (0.1 R)
• M8: 5,176,685 km (0.118 R)
• M9: 6,374,216 km (0.117 R)
• M10: 6,982,929 km (0.075 R)
• M11: 7,630,090 km (0.056 R)
• M12: 8,029,217 km (0.038 R)
• M13: 12,605,715 km (0.069 R)
• M14: 12,995,417 km (0.111 R)
• M15: 13,508,389 km (0.042 R)
• M16: 14,273,133 km (0.069 R)
• M17: 14,880,799 km (0.107 R)
• M18: 17,971,342 km (0.081 R)
• M19: 19,703,984 km (0.075 R)
• M20: 20,841,975 km (0.087 R)
• M21: 23,331,882 km (0.06 R)
• M22: 24,518,941 km (0.07 R)
• M23: 25,835,103 km (0.104 R)
• M24: 26,374,404 km (0.092 R)
• M25: 27,105,339 km (0.042 R)
• M26: 29,088,259 km (0.067 R)
• M27: 30,964,216 km (0.117 R)
• M28: 32,293,393 km (0.107 R)
• M29: 34,303,839 km (0.107 R)
• M30: 34,737,523 km (0.113 R)
• M31: 37,876,386 km (0.118 R)
• M32: 39,991,400 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.5

Radius: 3.4

Gravity: 20.29 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 12.1 AU - 14.82 AU

Year: 18908 Days

Day: 15.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 50,990,338 km

• M1: 42,336 km (0.042 R)
• M2: 171,140 km (0.091 R)
• M3: 356,193 km (0.09 R)
• M4: 984,952 km (0.052 R)
• M5: 1,720,974 km (0.055 R)
• M6: 1,833,621 km (0.085 R)
• M7: 2,373,221 km (0.082 R)
• M8: 3,547,265 km (0.064 R)
• M9: 3,730,373 km (0.114 R)
• M10: 4,288,223 km (0.106 R)
• M11: 5,193,140 km (0.066 R)
• M12: 5,360,989 km (0.079 R)
• M13: 5,743,361 km (0.095 R)
• M14: 6,069,335 km (0.089 R)
• M15: 7,162,746 km (0.093 R)
• M16: 8,289,667 km (0.095 R)
• M17: 8,800,095 km (0.1 R)
• M18: 9,282,099 km (0.097 R)
• M19: 9,629,765 km (0.095 R)
• M20: 11,958,555 km (0.099 R)
• M21: 13,661,427 km (0.055 R)
• M22: 17,092,006 km (0.043 R)
• M23: 17,916,888 km (0.087 R)
• M24: 19,083,901 km (0.048 R)
• M25: 19,243,223 km (0.107 R)
• M26: 19,483,926 km (0.117 R)
• M27: 20,053,295 km (0.1 R)
• M28: 21,568,273 km (0.119 R)
• M29: 24,540,633 km (0.041 R)
• M30: 34,597,649 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 542.9

Radius: 6.9

Gravity: 11.4 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 12.69 AU - 14.23 AU

Year: 18908 Days

Day: 22.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 50,990,338 km

• M1: 85,869 km (0.111 R)
• M2: 430,543 km (0.04 R)
• M3: 704,307 km (0.085 R)
• M4: 920,775 km (0.058 R)
• M5: 1,510,041 km (0.069 R)
• M6: 2,084,347 km (0.081 R)
• M7: 4,788,777 km (0.119 R)
• M8: 6,015,031 km (0.079 R)
• M9: 6,809,246 km (0.108 R)
• M10: 7,209,121 km (0.099 R)
• M11: 8,202,750 km (0.045 R)
• M12: 11,112,130 km (0.077 R)
• M13: 15,842,863 km (0.107 R)
• M14: 20,459,753 km (0.062 R)
• M15: 25,159,819 km (0.116 R)
• M16: 27,647,482 km (0.089 R)
• M17: 35,029,987 km (0.086 R)
• M18: 37,299,536 km (0.113 R)
• M19: 40,092,977 km (0.104 R)
• M20: 40,667,882 km (0.113 R)
• M21: 40,957,354 km (0.073 R)
• M22: 43,474,188 km (0.089 R)
• M23: 45,778,893 km (0.094 R)
• M24: 48,813,486 km (0.086 R)
• M25: 49,964,492 km (0.068 R)
• M26: 51,470,793 km (0.056 R)
• M27: 55,635,149 km (0.062 R)
• M28: 58,901,918 km (0.093 R)
• M29: 63,648,060 km (0.116 R)
• M30: 64,038,510 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.7

Radius: 7.9

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 13.69 AU - 16.13 AU

Year: 22044 Days

Day: 21.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 50,990,338 km

• M1: 102,026 km (0.113 R)
• M2: 352,752 km (0.099 R)
• M3: 677,978 km (0.118 R)
• M4: 1,288,786 km (0.12 R)
• M5: 2,317,869 km (0.093 R)
• M6: 2,613,924 km (0.084 R)
• M7: 2,935,110 km (0.098 R)
• M8: 3,454,065 km (0.103 R)
• M9: 3,950,132 km (0.115 R)
• M10: 4,829,169 km (0.115 R)
• M11: 5,832,671 km (0.05 R)
• M12: 6,574,976 km (0.09 R)
• M13: 7,337,028 km (0.092 R)
• M14: 8,751,475 km (0.113 R)
• M15: 11,424,041 km (0.052 R)
• M16: 12,945,302 km (0.083 R)
• M17: 14,268,944 km (0.041 R)
• M18: 14,729,556 km (0.085 R)
• M19: 17,930,950 km (0.059 R)
• M20: 20,888,650 km (0.066 R)
• M21: 32,243,128 km (0.115 R)
• M22: 42,099,234 km (0.094 R)
• M23: 43,046,488 km (0.055 R)
• M24: 46,402,567 km (0.044 R)
• M25: 47,704,816 km (0.116 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 532 - 12,743 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit