🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1 AU - 1.08 AU

Year: 450 Days

Day: 39.9 Hours

Environment

Temp: -60 °C

Axial Tilt: 16.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.53 AU - 1.67 AU

Year: 859 Days

Day: 37.2 Hours

Environment

Temp: -102 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.45 AU - 1.85 AU

Year: 900 Days

Day: 15.6 Hours

Environment

Temp: -97 °C

Axial Tilt: 18.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 20,147,223 km

• M1: 52,060 km (0.097 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.88 AU - 2.5 AU

Year: 1376 Days

Day: 46.9 Hours

Environment

Temp: -117 °C

Axial Tilt: 5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 20,147,223 km

• M1: 1,496,428 km (0.12 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.79 AU - 2.87 AU

Year: 1510 Days

Day: 35.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 20,147,223 km

• M1: 66,870 km (0.059 R)

Asteroid Belt

Center: 2.64 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.5

Radius: 8.5

Gravity: 8.35 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.57 AU - 3.33 AU

Year: 2151 Days

Day: 8 Hours

Environment

Temp: -140 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 20,147,223 km

• M1: 105,766 km (0.08 R)
• M2: 397,182 km (0.117 R)
• M3: 784,641 km (0.093 R)
• M4: 1,063,192 km (0.089 R)
• M5: 1,589,477 km (0.096 R)
• M6: 2,130,274 km (0.096 R)
• M7: 2,518,630 km (0.063 R)
• M8: 4,012,514 km (0.067 R)
• M9: 4,524,887 km (0.072 R)
• M10: 5,328,527 km (0.113 R)
• M11: 5,680,231 km (0.111 R)
• M12: 6,275,331 km (0.087 R)
• M13: 6,721,432 km (0.095 R)
• M14: 7,736,155 km (0.081 R)
• M15: 10,495,787 km (0.101 R)
• M16: 11,238,690 km (0.083 R)
• M17: 11,506,769 km (0.096 R)
• M18: 11,897,070 km (0.1 R)
• M19: 13,461,864 km (0.102 R)
• M20: 13,851,716 km (0.091 R)
• M21: 14,428,116 km (0.094 R)
• M22: 14,928,222 km (0.047 R)
• M23: 16,302,129 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.6

Radius: 15

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.98 AU - 4.84 AU

Year: 3283 Days

Day: 10.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 20,147,223 km

• M1: 186,549 km (0.09 R)
• M2: 815,159 km (0.113 R)
• M3: 1,316,012 km (0.1 R)
• M4: 1,814,473 km (0.086 R)
• M5: 2,774,442 km (0.041 R)
• M6: 3,457,356 km (0.101 R)
• M7: 4,620,330 km (0.095 R)
• M8: 5,138,088 km (0.099 R)
• M9: 5,612,763 km (0.054 R)
• M10: 6,743,124 km (0.108 R)
• M11: 8,995,619 km (0.077 R)
• M12: 9,847,579 km (0.081 R)
• M13: 11,489,565 km (0.098 R)
• M14: 13,307,927 km (0.113 R)
• M15: 16,640,519 km (0.092 R)
• M16: 18,165,669 km (0.071 R)
• M17: 18,714,694 km (0.068 R)
• M18: 22,384,329 km (0.115 R)
• M19: 23,371,825 km (0.05 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.8

Radius: 8.3

Gravity: 12.8 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.56 AU - 5.22 AU

Year: 3905 Days

Day: 13.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 20,147,223 km

• M1: 103,821 km (0.104 R)
• M2: 406,906 km (0.079 R)
• M3: 739,013 km (0.084 R)
• M4: 1,252,882 km (0.061 R)
• M5: 1,578,706 km (0.097 R)
• M6: 2,016,280 km (0.06 R)
• M7: 2,683,487 km (0.087 R)
• M8: 3,490,118 km (0.108 R)
• M9: 4,721,159 km (0.074 R)
• M10: 5,832,821 km (0.113 R)
• M11: 6,098,656 km (0.09 R)
• M12: 6,372,420 km (0.118 R)
• M13: 7,620,815 km (0.068 R)
• M14: 8,677,574 km (0.07 R)
• M15: 11,214,455 km (0.082 R)
• M16: 11,812,996 km (0.112 R)
• M17: 12,096,185 km (0.114 R)
• M18: 12,384,011 km (0.079 R)
• M19: 13,023,392 km (0.112 R)
• M20: 14,690,810 km (0.062 R)
• M21: 16,204,441 km (0.098 R)
• M22: 16,731,475 km (0.107 R)
• M23: 19,604,651 km (0.06 R)
• M24: 20,002,282 km (0.037 R)
• M25: 21,999,863 km (0.118 R)
• M26: 23,452,757 km (0.037 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.8

Radius: 9.7

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.92 AU - 5.04 AU

Year: 4026 Days

Day: 7.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,147,223 km

• M1: 120,725 km (0.03 R)
• M2: 437,275 km (0.065 R)
• M3: 833,859 km (0.1 R)
• M4: 1,392,756 km (0.099 R)
• M5: 2,307,846 km (0.107 R)
• M6: 6,197,989 km (0.109 R)
• M7: 7,197,902 km (0.079 R)
• M8: 11,737,898 km (0.066 R)
• M9: 13,172,242 km (0.119 R)
• M10: 18,173,149 km (0.097 R)
• M11: 19,201,186 km (0.118 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 414 - 16,440 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit