🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.57 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.01 AU - 1.27 AU

Year: 464 Days

Day: 14 Hours

Environment

Temp: -6 °C

Axial Tilt: 32.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.31 AU - 1.63 AU

Year: 679 Days

Day: 13 Hours

Environment

Temp: -57 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.1

Radius: 8.6

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.9 AU - 4.74 AU

Year: 3419 Days

Day: 12.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,214,636 km

• M1: 112,498 km (0.094 R)
• M2: 488,736 km (0.082 R)
• M3: 781,200 km (0.095 R)
• M4: 1,223,112 km (0.104 R)
• M5: 1,602,193 km (0.098 R)
• M6: 2,465,373 km (0.09 R)
• M7: 3,020,531 km (0.054 R)
• M8: 3,948,187 km (0.052 R)
• M9: 5,754,432 km (0.057 R)
• M10: 6,540,868 km (0.119 R)
• M11: 7,892,335 km (0.109 R)
• M12: 9,541,352 km (0.091 R)
• M13: 9,909,213 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 11.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.5

Radius: 10.6

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 9.91 AU - 13.21 AU

Year: 14967 Days

Day: 6 Hours

Environment

Temp: -188 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 34,214,636 km

• M1: 145,708 km (0.119 R)
• M2: 517,609 km (0.068 R)
• M3: 1,081,892 km (0.055 R)
• M4: 2,171,862 km (0.036 R)
• M5: 2,873,476 km (0.117 R)
• M6: 4,273,862 km (0.107 R)
• M7: 4,632,148 km (0.041 R)
• M8: 5,409,459 km (0.044 R)
• M9: 9,066,080 km (0.084 R)
• M10: 9,967,257 km (0.067 R)
• M11: 11,260,232 km (0.061 R)
• M12: 13,091,908 km (0.088 R)
• M13: 15,879,365 km (0.118 R)
• M14: 16,816,745 km (0.094 R)
• M15: 23,876,718 km (0.096 R)
• M16: 24,818,885 km (0.103 R)
• M17: 28,000,682 km (0.065 R)
• M18: 30,339,645 km (0.04 R)
• M19: 32,120,458 km (0.092 R)
• M20: 33,152,235 km (0.041 R)
• M21: 38,006,835 km (0.077 R)
• M22: 41,539,140 km (0.068 R)
• M23: 42,489,386 km (0.117 R)
• M24: 52,962,284 km (0.106 R)

Planet 5 - Ice Giant

Semi-Major Axis: 11.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 16.3

Radius: 4.1

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 9.25 AU - 14.57 AU

Year: 15652 Days

Day: 21.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 85.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 34,214,636 km

• M1: 64,028 km (0.101 R)
• M2: 603,179 km (0.113 R)
• M3: 2,271,793 km (0.112 R)
• M4: 3,519,739 km (0.057 R)
• M5: 4,155,380 km (0.106 R)
• M6: 9,828,281 km (0.045 R)
• M7: 12,898,328 km (0.096 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 711

Radius: 8

Gravity: 11.11 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 11.91 AU - 12.79 AU

Year: 16527 Days

Day: 22.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 34,214,636 km

• M1: 99,483 km (0.066 R)
• M2: 409,300 km (0.092 R)
• M3: 709,094 km (0.094 R)
• M4: 1,170,753 km (0.092 R)
• M5: 1,983,967 km (0.059 R)
• M6: 2,298,422 km (0.066 R)
• M7: 4,632,896 km (0.074 R)
• M8: 5,410,656 km (0.069 R)
• M9: 5,752,786 km (0.057 R)
• M10: 6,190,509 km (0.046 R)
• M11: 6,866,692 km (0.103 R)
• M12: 7,268,063 km (0.097 R)
• M13: 8,516,457 km (0.111 R)
• M14: 9,085,378 km (0.097 R)
• M15: 10,414,705 km (0.075 R)
• M16: 10,825,650 km (0.062 R)
• M17: 11,995,954 km (0.113 R)
• M18: 12,910,745 km (0.118 R)
• M19: 17,608,866 km (0.066 R)
• M20: 19,135,512 km (0.11 R)
• M21: 20,110,891 km (0.1 R)
• M22: 22,450,003 km (0.104 R)
• M23: 23,534,438 km (0.101 R)
• M24: 25,278,599 km (0.103 R)
• M25: 28,222,985 km (0.095 R)
• M26: 29,836,248 km (0.098 R)
• M27: 30,427,010 km (0.069 R)
• M28: 31,632,021 km (0.11 R)
• M29: 36,367,392 km (0.111 R)
• M30: 40,250,055 km (0.118 R)
• M31: 41,408,092 km (0.1 R)
• M32: 41,701,154 km (0.087 R)
• M33: 44,861,409 km (0.1 R)
• M34: 46,263,291 km (0.056 R)
• M35: 48,177,695 km (0.075 R)
• M36: 48,990,759 km (0.103 R)
• M37: 52,163,730 km (0.107 R)
• M38: 58,731,226 km (0.092 R)
• M39: 60,032,728 km (0.042 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 115.3

Radius: 6.1

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 12.86 AU - 15.62 AU

Year: 20463 Days

Day: 21.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 34,214,636 km

• M1: 76,445 km (0.12 R)
• M2: 288,724 km (0.077 R)
• M3: 481,556 km (0.032 R)
• M4: 2,601,657 km (0.117 R)
• M5: 2,883,649 km (0.11 R)
• M6: 3,275,894 km (0.07 R)
• M7: 3,802,927 km (0.08 R)
• M8: 4,274,759 km (0.067 R)
• M9: 7,593,887 km (0.097 R)
• M10: 7,837,732 km (0.066 R)
• M11: 8,556,998 km (0.078 R)
• M12: 11,081,911 km (0.08 R)
• M13: 14,247,252 km (0.101 R)
• M14: 18,401,286 km (0.119 R)
• M15: 23,639,605 km (0.107 R)
• M16: 23,985,625 km (0.094 R)
• M17: 26,596,706 km (0.117 R)
• M18: 29,192,528 km (0.116 R)
• M19: 29,892,048 km (0.116 R)
• M20: 38,578,748 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 205.7

Radius: 5.7

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 14.13 AU - 14.77 AU

Year: 20917 Days

Day: 21 Hours

Environment

Temp: -202 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,214,636 km

• M1: 323,879 km (0.116 R)
• M2: 570,417 km (0.057 R)
• M3: 1,125,874 km (0.118 R)
• M4: 3,657,818 km (0.118 R)
• M5: 3,899,867 km (0.091 R)
• M6: 6,314,825 km (0.041 R)
• M7: 8,054,200 km (0.107 R)
• M8: 8,985,297 km (0.109 R)
• M9: 11,226,273 km (0.114 R)
• M10: 16,123,210 km (0.082 R)
• M11: 23,819,721 km (0.119 R)
• M12: 26,913,854 km (0.075 R)
• M13: 27,216,939 km (0.111 R)
• M14: 34,120,582 km (0.103 R)
• M15: 36,165,435 km (0.114 R)
• M16: 37,030,709 km (0.031 R)
• M17: 37,280,388 km (0.09 R)
• M18: 45,021,030 km (0.045 R)
• M19: 49,869,946 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 27.4

Radius: 5.2

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 16.08 AU - 20.8 AU

Year: 30153 Days

Day: 24.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 34,214,636 km

• M1: 76,445 km (0.086 R)
• M2: 560,693 km (0.029 R)
• M3: 774,917 km (0.036 R)
• M4: 1,111,811 km (0.112 R)
• M5: 1,998,328 km (0.037 R)
• M6: 3,587,656 km (0.088 R)
• M7: 7,330,894 km (0.065 R)
• M8: 11,041,071 km (0.039 R)
• M9: 13,847,078 km (0.108 R)
• M10: 23,099,706 km (0.109 R)
• M11: 23,575,727 km (0.095 R)
• M12: 23,896,764 km (0.11 R)
• M13: 25,126,309 km (0.102 R)
• M14: 29,715,373 km (0.065 R)
• M15: 31,232,445 km (0.104 R)
• M16: 32,206,327 km (0.101 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: 456 - 17,261 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit