🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.89 AU - 1.49 AU

Year: 456 Days

Day: 36 Hours

Environment

Temp: 34 °C

Axial Tilt: 22.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.48 AU - 1.56 AU

Year: 659 Days

Day: 21 Hours

Environment

Temp: 7 °C

Axial Tilt: 27.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.55 AU - 3.01 AU

Year: 1629 Days

Day: 43.6 Hours

Environment

Temp: -94 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,251,081 km

• M1: 65,225 km (0.11 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.87 AU - 4.45 AU

Year: 2982 Days

Day: 16.8 Hours

Environment

Temp: -111 °C

Axial Tilt: 29.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,251,081 km

• M1: 160,070 km (0.115 R)

Planet 5 - Terrestrial

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 5.18 AU - 5.64 AU

Year: 4423 Days

Day: 19.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 15.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.1

Radius: 10.9

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.55 AU - 7.71 AU

Year: 6691 Days

Day: 11.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,251,081 km

• M1: 135,536 km (0.072 R)
• M2: 614,698 km (0.088 R)
• M3: 1,371,214 km (0.1 R)
• M4: 1,775,577 km (0.114 R)
• M5: 3,116,423 km (0.094 R)
• M6: 3,629,544 km (0.107 R)
• M7: 4,262,791 km (0.107 R)
• M8: 5,064,786 km (0.069 R)
• M9: 8,213,521 km (0.093 R)
• M10: 9,087,023 km (0.088 R)
• M11: 11,520,083 km (0.087 R)
• M12: 13,024,290 km (0.099 R)
• M13: 14,906,530 km (0.061 R)
• M14: 15,572,390 km (0.06 R)
• M15: 17,689,499 km (0.088 R)
• M16: 19,869,140 km (0.116 R)
• M17: 21,055,302 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.4

Radius: 10.5

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 8.76 AU - 9.98 AU

Year: 10081 Days

Day: 5.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,251,081 km

• M1: 131,347 km (0.075 R)
• M2: 554,859 km (0.082 R)
• M3: 1,123,480 km (0.114 R)
• M4: 2,302,162 km (0.075 R)
• M5: 2,693,510 km (0.072 R)
• M6: 4,780,250 km (0.085 R)
• M7: 8,902,569 km (0.046 R)
• M8: 10,869,632 km (0.092 R)
• M9: 16,432,429 km (0.093 R)
• M10: 17,762,054 km (0.093 R)
• M11: 19,575,480 km (0.1 R)
• M12: 21,582,934 km (0.063 R)
• M13: 22,483,962 km (0.049 R)
• M14: 28,872,239 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 661.9

Radius: 7.6

Gravity: 11.46 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 13.11 AU - 20.03 AU

Year: 23706 Days

Day: 23.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,251,081 km

• M1: 98,136 km (0.102 R)
• M2: 553,363 km (0.091 R)
• M3: 1,272,479 km (0.072 R)
• M4: 1,625,381 km (0.088 R)
• M5: 2,625,891 km (0.072 R)
• M6: 3,315,388 km (0.111 R)
• M7: 3,923,653 km (0.099 R)
• M8: 5,726,606 km (0.115 R)
• M9: 6,464,124 km (0.118 R)
• M10: 7,814,544 km (0.064 R)
• M11: 8,610,704 km (0.049 R)
• M12: 9,170,798 km (0.057 R)
• M13: 11,522,776 km (0.112 R)
• M14: 14,559,314 km (0.101 R)
• M15: 17,732,434 km (0.114 R)
• M16: 19,574,732 km (0.093 R)
• M17: 20,937,868 km (0.086 R)
• M18: 31,636,808 km (0.093 R)
• M19: 37,919,171 km (0.116 R)
• M20: 48,214,197 km (0.111 R)
• M21: 52,694,653 km (0.104 R)
• M22: 57,836,781 km (0.068 R)
• M23: 61,240,432 km (0.064 R)
• M24: 69,105,091 km (0.07 R)
• M25: 78,336,027 km (0.096 R)
• M26: 82,745,275 km (0.11 R)

Kuiper Belt

Range: 31.2 - 48.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 372 - 19,170 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit