🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.64 AU - 1 AU

Year: 269 Days

Day: 14.5 Hours

Environment

Temp: 156 °C

Axial Tilt: 5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.72 AU - 1.06 AU

Year: 304 Days

Day: 40.7 Hours

Environment

Temp: 176 °C

Axial Tilt: 20.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.67 AU - 1.95 AU

Year: 881 Days

Day: 22.4 Hours

Environment

Temp: -60 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,424,224 km

• M1: 689,646 km (0.066 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2 AU - 2.16 AU

Year: 1085 Days

Day: 36.5 Hours

Environment

Temp: -59 °C

Axial Tilt: 5.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,424,224 km

• M1: 50,115 km (0.11 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.52 AU - 3.78 AU

Year: 2022 Days

Day: 42.1 Hours

Environment

Temp: -102 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.28 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 13.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 644.9

Radius: 5.3

Gravity: 22.96 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 12.9 AU - 13.9 AU

Year: 17740 Days

Day: 15.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 94,424,224 km

• M1: 71,807 km (0.095 R)
• M2: 271,221 km (0.088 R)
• M3: 599,738 km (0.085 R)
• M4: 993,180 km (0.103 R)
• M5: 2,298,571 km (0.07 R)
• M6: 3,899,867 km (0.097 R)
• M7: 5,534,224 km (0.061 R)
• M8: 6,544,608 km (0.041 R)
• M9: 6,981,134 km (0.103 R)
• M10: 8,009,919 km (0.075 R)
• M11: 8,818,794 km (0.083 R)
• M12: 10,363,392 km (0.046 R)
• M13: 13,073,208 km (0.043 R)
• M14: 17,927,210 km (0.119 R)
• M15: 18,521,563 km (0.1 R)
• M16: 19,929,279 km (0.083 R)
• M17: 22,758,474 km (0.067 R)
• M18: 25,311,661 km (0.078 R)
• M19: 34,363,977 km (0.089 R)
• M20: 35,412,509 km (0.031 R)
• M21: 35,811,187 km (0.067 R)
• M22: 39,677,245 km (0.106 R)
• M23: 56,285,152 km (0.092 R)
• M24: 62,450,230 km (0.084 R)
• M25: 64,206,509 km (0.107 R)
• M26: 66,196,310 km (0.104 R)
• M27: 67,003,540 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 849.9

Radius: 3.1

Gravity: 88.44 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 11.79 AU - 16.63 AU

Year: 19372 Days

Day: 23.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 94,424,224 km

• M1: 39,643 km (0.057 R)
• M2: 222,602 km (0.094 R)
• M3: 452,833 km (0.111 R)
• M4: 688,150 km (0.048 R)
• M5: 1,561,353 km (0.062 R)
• M6: 1,890,468 km (0.116 R)
• M7: 1,989,801 km (0.107 R)
• M8: 2,611,231 km (0.117 R)
• M9: 2,966,227 km (0.093 R)
• M10: 3,210,819 km (0.108 R)
• M11: 3,587,656 km (0.107 R)
• M12: 4,257,406 km (0.094 R)
• M13: 4,784,290 km (0.096 R)
• M14: 6,715,000 km (0.082 R)
• M15: 7,280,330 km (0.066 R)
• M16: 9,978,926 km (0.116 R)
• M17: 13,276,512 km (0.068 R)
• M18: 14,013,132 km (0.1 R)
• M19: 14,776,679 km (0.047 R)
• M20: 16,137,422 km (0.1 R)
• M21: 17,405,712 km (0.056 R)
• M22: 18,466,810 km (0.086 R)
• M23: 21,010,722 km (0.073 R)
• M24: 21,606,121 km (0.112 R)
• M25: 22,009,288 km (0.043 R)
• M26: 30,274,121 km (0.072 R)
• M27: 32,064,808 km (0.112 R)
• M28: 33,119,173 km (0.12 R)
• M29: 33,789,671 km (0.102 R)
• M30: 33,924,908 km (0.11 R)
• M31: 35,435,696 km (0.093 R)
• M32: 36,704,885 km (0.066 R)
• M33: 39,035,320 km (0.065 R)
• M34: 39,333,319 km (0.12 R)
• M35: 43,988,207 km (0.105 R)
• M36: 54,187,191 km (0.03 R)
• M37: 59,929,505 km (0.114 R)
• M38: 63,562,490 km (0.079 R)
• M39: 68,198,528 km (0.075 R)
• M40: 69,719,489 km (0.03 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 817.8

Radius: 7

Gravity: 16.69 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 14.33 AU - 19.63 AU

Year: 25304 Days

Day: 22.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 94,424,224 km

• M1: 87,216 km (0.099 R)
• M2: 452,085 km (0.029 R)
• M3: 744,399 km (0.1 R)
• M4: 1,024,596 km (0.12 R)
• M5: 1,688,362 km (0.087 R)
• M6: 1,964,669 km (0.068 R)
• M7: 2,897,412 km (0.077 R)
• M8: 3,508,220 km (0.094 R)
• M9: 3,893,883 km (0.081 R)
• M10: 4,166,600 km (0.054 R)
• M11: 4,562,286 km (0.076 R)
• M12: 5,554,868 km (0.075 R)
• M13: 5,857,056 km (0.07 R)
• M14: 7,277,936 km (0.067 R)
• M15: 10,007,050 km (0.035 R)
• M16: 11,950,028 km (0.1 R)
• M17: 13,199,170 km (0.11 R)
• M18: 13,894,501 km (0.12 R)
• M19: 15,697,005 km (0.099 R)
• M20: 16,743,143 km (0.096 R)
• M21: 17,101,879 km (0.097 R)
• M22: 17,649,706 km (0.089 R)
• M23: 19,363,649 km (0.09 R)
• M24: 25,637,335 km (0.079 R)
• M25: 25,875,046 km (0.113 R)
• M26: 26,718,479 km (0.037 R)
• M27: 28,587,405 km (0.091 R)
• M28: 30,541,752 km (0.113 R)
• M29: 31,483,620 km (0.098 R)
• M30: 57,207,871 km (0.09 R)
• M31: 59,050,319 km (0.102 R)
• M32: 66,816,243 km (0.061 R)
• M33: 67,492,575 km (0.083 R)
• M34: 70,942,751 km (0.106 R)
• M35: 75,723,301 km (0.039 R)
• M36: 81,738,033 km (0.112 R)

Kuiper Belt

Range: 30.3 - 50.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 12,072 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit