🌌 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: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.49 AU - 0.59 AU

Year: 260 Days

Day: 31.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,101,321 km

• M1: 22,888 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551

Radius: 10.9

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.66 AU - 0.86 AU

Year: 435 Days

Day: 5.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,101,321 km

• M1: 135,536 km (0.075 R)
• M2: 476,918 km (0.096 R)
• M3: 1,069,475 km (0.034 R)
• M4: 1,577,958 km (0.077 R)
• M5: 1,979,180 km (0.052 R)
• M6: 2,367,087 km (0.064 R)
• M7: 2,836,376 km (0.089 R)
• M8: 3,662,904 km (0.087 R)
• M9: 4,040,938 km (0.042 R)
• M10: 4,557,499 km (0.11 R)
• M11: 4,920,872 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.3

Radius: 12.1

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.36 AU - 1.48 AU

Year: 1110 Days

Day: 13 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,101,321 km

• M1: 150,495 km (0.097 R)
• M2: 621,430 km (0.092 R)
• M3: 1,043,146 km (0.117 R)
• M4: 1,468,901 km (0.12 R)
• M5: 1,858,454 km (0.112 R)
• M6: 2,281,667 km (0.069 R)
• M7: 2,832,636 km (0.09 R)
• M8: 5,628,620 km (0.09 R)
• M9: 6,102,396 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18

Radius: 12.7

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.53 AU - 2.01 AU

Year: 1545 Days

Day: 13.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,101,321 km

• M1: 160,967 km (0.079 R)
• M2: 622,028 km (0.035 R)
• M3: 1,057,807 km (0.043 R)
• M4: 1,673,701 km (0.115 R)
• M5: 2,640,851 km (0.059 R)
• M6: 3,219,645 km (0.112 R)
• M7: 4,020,443 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.8

Radius: 14.3

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.67 AU - 2.39 AU

Year: 1897 Days

Day: 8.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,101,321 km

• M1: 178,171 km (0.102 R)
• M2: 894,296 km (0.057 R)
• M3: 1,584,241 km (0.117 R)
• M4: 2,328,790 km (0.1 R)
• M5: 2,884,546 km (0.104 R)
• M6: 3,461,545 km (0.118 R)
• M7: 4,003,987 km (0.1 R)
• M8: 4,522,493 km (0.044 R)
• M9: 5,602,291 km (0.071 R)
• M10: 8,988,139 km (0.098 R)
• M11: 9,511,283 km (0.067 R)
• M12: 10,872,624 km (0.104 R)
• M13: 11,772,754 km (0.096 R)
• M14: 13,679,229 km (0.085 R)
• M15: 14,328,783 km (0.098 R)
• M16: 15,411,124 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.7

Radius: 11.4

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.7 AU - 3.44 AU

Year: 3529 Days

Day: 8.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 21,101,321 km

• M1: 141,819 km (0.07 R)
• M2: 610,659 km (0.093 R)
• M3: 1,061,696 km (0.118 R)
• M4: 1,498,073 km (0.058 R)
• M5: 2,081,355 km (0.116 R)
• M6: 2,646,686 km (0.062 R)
• M7: 3,163,546 km (0.117 R)
• M8: 3,664,998 km (0.118 R)
• M9: 5,550,081 km (0.104 R)
• M10: 6,952,112 km (0.101 R)
• M11: 7,803,923 km (0.065 R)
• M12: 8,723,800 km (0.115 R)
• M13: 10,906,433 km (0.115 R)
• M14: 13,828,079 km (0.081 R)
• M15: 14,855,517 km (0.06 R)
• M16: 15,387,936 km (0.104 R)
• M17: 15,988,123 km (0.029 R)
• M18: 17,004,192 km (0.055 R)
• M19: 18,608,180 km (0.079 R)
• M20: 19,352,429 km (0.108 R)
• M21: 20,506,128 km (0.101 R)
• M22: 21,909,356 km (0.083 R)
• M23: 24,096,327 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172

Radius: 9.5

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 4.22 AU - 4.36 AU

Year: 5829 Days

Day: 5.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,101,321 km

• M1: 147,653 km (0.057 R)
• M2: 701,913 km (0.048 R)
• M3: 1,041,201 km (0.077 R)
• M4: 1,401,582 km (0.043 R)
• M5: 1,728,903 km (0.1 R)
• M6: 2,820,518 km (0.06 R)
• M7: 3,242,085 km (0.065 R)
• M8: 5,748,747 km (0.032 R)
• M9: 6,686,875 km (0.075 R)
• M10: 7,691,874 km (0.049 R)
• M11: 8,935,032 km (0.08 R)
• M12: 9,402,226 km (0.108 R)
• M13: 16,087,306 km (0.111 R)
• M14: 17,159,923 km (0.118 R)
• M15: 17,713,884 km (0.115 R)
• M16: 20,478,153 km (0.056 R)
• M17: 20,850,502 km (0.118 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 13,211 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit