🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.46 AU - 0.62 AU

Year: 256 Days

Day: 22.1 Hours

Environment

Temp: -116 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,050,472 km

• M1: 51,761 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358

Radius: 12.5

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.82 AU - 0.9 AU

Year: 515 Days

Day: 10.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,050,472 km

• M1: 155,582 km (0.069 R)
• M2: 663,766 km (0.067 R)
• M3: 1,210,247 km (0.095 R)
• M4: 1,695,093 km (0.07 R)
• M5: 2,100,205 km (0.032 R)
• M6: 2,524,165 km (0.094 R)
• M7: 3,241,786 km (0.12 R)
• M8: 3,727,680 km (0.028 R)
• M9: 4,262,043 km (0.104 R)
• M10: 4,774,715 km (0.043 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.5

Radius: 10.8

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.79 AU - 1.01 AU

Year: 551 Days

Day: 6.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,050,472 km

• M1: 135,685 km (0.064 R)
• M2: 494,271 km (0.064 R)
• M3: 848,519 km (0.119 R)
• M4: 1,223,860 km (0.098 R)
• M5: 1,572,274 km (0.107 R)
• M6: 2,585,799 km (0.026 R)
• M7: 2,932,717 km (0.093 R)
• M8: 3,651,086 km (0.071 R)
• M9: 4,154,034 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.3

Radius: 13.7

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.21 AU - 1.25 AU

Year: 881 Days

Day: 7.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,050,472 km

• M1: 170,392 km (0.099 R)
• M2: 667,954 km (0.06 R)
• M3: 1,127,669 km (0.086 R)
• M4: 1,556,416 km (0.09 R)
• M5: 1,988,455 km (0.107 R)
• M6: 2,912,521 km (0.096 R)
• M7: 3,553,697 km (0.119 R)
• M8: 4,061,881 km (0.116 R)
• M9: 4,848,467 km (0.047 R)
• M10: 5,367,721 km (0.102 R)
• M11: 5,905,077 km (0.111 R)
• M12: 6,980,237 km (0.104 R)
• M13: 7,576,235 km (0.029 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.2

Radius: 13.3

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.47 AU - 3.35 AU

Year: 3205 Days

Day: 5.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 75.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,050,472 km

• M1: 165,904 km (0.038 R)
• M2: 588,518 km (0.082 R)
• M3: 1,029,682 km (0.071 R)
• M4: 1,459,626 km (0.059 R)
• M5: 2,149,572 km (0.079 R)
• M6: 3,033,097 km (0.107 R)
• M7: 3,550,257 km (0.108 R)
• M8: 3,966,588 km (0.093 R)
• M9: 4,830,964 km (0.101 R)
• M10: 5,441,922 km (0.071 R)
• M11: 6,847,693 km (0.061 R)
• M12: 7,528,363 km (0.085 R)
• M13: 8,092,048 km (0.112 R)
• M14: 9,059,647 km (0.113 R)
• M15: 9,661,778 km (0.079 R)
• M16: 10,442,530 km (0.1 R)
• M17: 11,630,187 km (0.034 R)
• M18: 13,441,967 km (0.062 R)
• M19: 14,132,511 km (0.103 R)
• M20: 15,385,393 km (0.051 R)
• M21: 18,840,655 km (0.071 R)
• M22: 19,589,093 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.3

Radius: 10.6

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.24 AU - 5.1 AU

Year: 5498 Days

Day: 7.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,050,472 km

• M1: 134,189 km (0.05 R)
• M2: 761,453 km (0.108 R)
• M3: 1,110,764 km (0.115 R)
• M4: 1,533,378 km (0.1 R)
• M5: 2,803,165 km (0.117 R)
• M6: 3,277,091 km (0.078 R)
• M7: 3,920,661 km (0.057 R)
• M8: 4,620,031 km (0.095 R)
• M9: 6,364,791 km (0.102 R)
• M10: 6,836,323 km (0.095 R)
• M11: 8,273,809 km (0.086 R)
• M12: 9,859,098 km (0.105 R)
• M13: 10,817,422 km (0.065 R)
• M14: 12,139,568 km (0.082 R)
• M15: 14,984,321 km (0.077 R)
• M16: 17,004,341 km (0.103 R)
• M17: 17,847,774 km (0.117 R)
• M18: 20,257,347 km (0.074 R)
• M19: 21,057,396 km (0.065 R)
• M20: 21,577,398 km (0.066 R)
• M21: 25,293,709 km (0.109 R)
• M22: 26,478,374 km (0.052 R)
• M23: 27,522,717 km (0.119 R)
• M24: 30,253,925 km (0.112 R)
• M25: 32,171,920 km (0.027 R)
• M26: 33,360,924 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 846.6

Radius: 4

Gravity: 52.91 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 9.23 AU - 10.35 AU

Year: 19778 Days

Day: 20.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,050,472 km

• M1: 49,816 km (0.091 R)
• M2: 328,667 km (0.087 R)
• M3: 522,097 km (0.048 R)
• M4: 948,002 km (0.06 R)
• M5: 1,226,403 km (0.078 R)
• M6: 1,361,490 km (0.078 R)
• M7: 2,830,392 km (0.113 R)
• M8: 6,400,395 km (0.112 R)
• M9: 7,284,220 km (0.097 R)
• M10: 7,529,859 km (0.115 R)
• M11: 10,174,899 km (0.031 R)
• M12: 17,284,837 km (0.098 R)
• M13: 20,594,391 km (0.05 R)
• M14: 22,089,921 km (0.089 R)
• M15: 24,850,749 km (0.112 R)
• M16: 29,657,628 km (0.096 R)
• M17: 34,358,741 km (0.08 R)
• M18: 35,466,962 km (0.088 R)
• M19: 40,290,297 km (0.078 R)
• M20: 46,030,966 km (0.091 R)
• M21: 57,538,632 km (0.069 R)
• M22: 58,315,494 km (0.074 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 17,656 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit