🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.47 AU - 0.69 AU

Year: 154 Days

Day: 38.5 Hours

Environment

Temp: 257 °C

Axial Tilt: 12.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 81,950,541 km

• M1: 145,260 km (0.096 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.94 AU - 1.52 AU

Year: 475 Days

Day: 36.2 Hours

Environment

Temp: 32 °C

Axial Tilt: 70.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 81,950,541 km

• M1: 48,320 km (0.106 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.46 AU - 3.96 AU

Year: 2489 Days

Day: 47.5 Hours

Environment

Temp: -98 °C

Axial Tilt: 31.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 81,950,541 km

• M1: 105,616 km (0.086 R)
• M2: 1,423,723 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 4.56 AU - 4.62 AU

Year: 3425 Days

Day: 15.8 Hours

Environment

Temp: -115 °C

Axial Tilt: 44.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.93 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.5

Radius: 13.3

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 6.42 AU - 8.1 AU

Year: 6812 Days

Day: 8 Hours

Environment

Temp: -155 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,950,541 km

• M1: 166,652 km (0.107 R)
• M2: 958,324 km (0.027 R)
• M3: 1,499,270 km (0.083 R)
• M4: 2,391,771 km (0.106 R)
• M5: 3,138,863 km (0.073 R)
• M6: 4,160,317 km (0.117 R)
• M7: 4,680,917 km (0.071 R)
• M8: 5,362,784 km (0.094 R)
• M9: 6,045,250 km (0.113 R)
• M10: 8,284,431 km (0.049 R)
• M11: 9,198,025 km (0.057 R)
• M12: 9,994,634 km (0.113 R)
• M13: 10,503,715 km (0.05 R)
• M14: 12,823,230 km (0.087 R)
• M15: 13,425,063 km (0.118 R)
• M16: 15,162,492 km (0.104 R)
• M17: 16,211,323 km (0.091 R)
• M18: 16,785,928 km (0.119 R)
• M19: 22,664,526 km (0.1 R)
• M20: 25,631,501 km (0.061 R)
• M21: 30,073,510 km (0.12 R)
• M22: 34,477,821 km (0.067 R)
• M23: 35,322,451 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.2

Radius: 12

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 10.43 AU - 10.45 AU

Year: 11747 Days

Day: 9.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 81,950,541 km

• M1: 149,897 km (0.11 R)
• M2: 829,969 km (0.06 R)
• M3: 1,243,009 km (0.111 R)
• M4: 1,841,101 km (0.067 R)
• M5: 2,567,548 km (0.112 R)
• M6: 3,942,353 km (0.046 R)
• M7: 5,090,367 km (0.091 R)
• M8: 5,859,001 km (0.114 R)
• M9: 7,389,088 km (0.093 R)
• M10: 8,036,996 km (0.068 R)
• M11: 8,811,015 km (0.071 R)
• M12: 9,633,953 km (0.078 R)
• M13: 10,210,503 km (0.105 R)
• M14: 11,118,563 km (0.054 R)
• M15: 14,412,857 km (0.072 R)
• M16: 15,425,336 km (0.086 R)
• M17: 17,662,422 km (0.061 R)
• M18: 18,747,755 km (0.098 R)
• M19: 20,733,367 km (0.088 R)
• M20: 21,371,552 km (0.12 R)
• M21: 21,940,772 km (0.091 R)
• M22: 22,353,363 km (0.082 R)
• M23: 23,622,701 km (0.042 R)
• M24: 24,939,611 km (0.028 R)
• M25: 26,958,583 km (0.077 R)
• M26: 28,886,601 km (0.086 R)
• M27: 32,479,044 km (0.095 R)
• M28: 35,220,575 km (0.065 R)
• M29: 36,015,089 km (0.064 R)
• M30: 40,290,895 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 13.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.3

Radius: 9.2

Gravity: 11.53 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 12.01 AU - 14.01 AU

Year: 16342 Days

Day: 14.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 81,950,541 km

• M1: 118,781 km (0.05 R)
• M2: 550,221 km (0.115 R)
• M3: 1,047,484 km (0.068 R)
• M4: 1,918,144 km (0.111 R)
• M5: 2,472,404 km (0.04 R)
• M6: 3,209,772 km (0.036 R)
• M7: 3,748,175 km (0.096 R)
• M8: 4,412,090 km (0.11 R)
• M9: 5,493,982 km (0.084 R)
• M10: 5,810,381 km (0.094 R)
• M11: 6,393,514 km (0.093 R)
• M12: 7,293,495 km (0.119 R)
• M13: 10,927,526 km (0.032 R)
• M14: 12,144,505 km (0.094 R)
• M15: 16,580,231 km (0.112 R)
• M16: 21,113,346 km (0.058 R)
• M17: 21,892,152 km (0.099 R)
• M18: 22,388,668 km (0.117 R)
• M19: 39,241,616 km (0.035 R)
• M20: 47,313,618 km (0.099 R)
• M21: 48,983,280 km (0.108 R)
• M22: 50,519,201 km (0.063 R)
• M23: 67,057,246 km (0.097 R)
• M24: 69,375,115 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 967.3

Radius: 6.3

Gravity: 24.37 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 12 AU - 16.58 AU

Year: 18812 Days

Day: 17.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 81,950,541 km

• M1: 87,964 km (0.111 R)
• M2: 307,872 km (0.085 R)
• M3: 596,746 km (0.043 R)
• M4: 880,683 km (0.11 R)
• M5: 1,140,833 km (0.048 R)
• M6: 1,584,840 km (0.084 R)
• M7: 2,424,233 km (0.086 R)
• M8: 2,735,995 km (0.113 R)
• M9: 3,962,249 km (0.108 R)
• M10: 5,085,879 km (0.062 R)
• M11: 6,015,031 km (0.075 R)
• M12: 8,578,540 km (0.109 R)
• M13: 9,534,620 km (0.116 R)
• M14: 10,811,438 km (0.112 R)
• M15: 11,392,177 km (0.119 R)
• M16: 13,042,092 km (0.112 R)
• M17: 13,478,170 km (0.096 R)
• M18: 14,688,716 km (0.094 R)
• M19: 16,807,770 km (0.118 R)
• M20: 19,970,867 km (0.05 R)
• M21: 20,942,655 km (0.067 R)
• M22: 21,843,832 km (0.119 R)
• M23: 26,624,831 km (0.103 R)
• M24: 27,091,277 km (0.096 R)
• M25: 27,444,627 km (0.052 R)
• M26: 28,281,029 km (0.114 R)
• M27: 29,257,604 km (0.112 R)
• M28: 29,754,268 km (0.103 R)
• M29: 36,302,766 km (0.112 R)
• M30: 38,632,902 km (0.085 R)
• M31: 39,986,464 km (0.081 R)
• M32: 48,258,478 km (0.116 R)
• M33: 49,651,683 km (0.041 R)
• M34: 51,791,232 km (0.063 R)
• M35: 57,990,418 km (0.114 R)
• M36: 78,083,207 km (0.073 R)

Kuiper Belt

Range: 31.5 - 55.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 472 - 16,557 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit