🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.41 AU - 0.63 AU

Year: 242 Days

Day: 25.8 Hours

Environment

Temp: -116 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 16,450,246 km

• M1: 163,959 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.55 AU - 0.65 AU

Year: 300 Days

Day: 15 Hours

Environment

Temp: -122 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 16,450,246 km

• M1: 97,987 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.6 AU - 0.74 AU

Year: 354 Days

Day: 19 Hours

Environment

Temp: -125 °C

Axial Tilt: 22.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 16,450,246 km

• M1: 41,139 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599

Radius: 12.9

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.62 AU - 0.84 AU

Year: 403 Days

Day: 10 Hours

Environment

Temp: -137 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,450,246 km

• M1: 160,519 km (0.099 R)
• M2: 581,637 km (0.09 R)
• M3: 1,010,833 km (0.112 R)
• M4: 2,201,333 km (0.119 R)
• M5: 2,726,720 km (0.047 R)
• M6: 3,495,354 km (0.055 R)
• M7: 4,417,625 km (0.084 R)
• M8: 4,988,341 km (0.051 R)

Asteroid Belt

Center: 1.05 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.2

Radius: 10.6

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.25 AU - 1.47 AU

Year: 1024 Days

Day: 6.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 16,450,246 km

• M1: 131,796 km (0.079 R)
• M2: 584,329 km (0.112 R)
• M3: 1,096,253 km (0.069 R)
• M4: 1,690,007 km (0.054 R)
• M5: 2,488,112 km (0.113 R)
• M6: 2,834,730 km (0.104 R)
• M7: 3,185,687 km (0.092 R)
• M8: 3,846,610 km (0.09 R)
• M9: 4,193,228 km (0.086 R)
• M10: 4,524,737 km (0.106 R)
• M11: 5,421,128 km (0.088 R)
• M12: 6,206,965 km (0.086 R)
• M13: 7,538,536 km (0.091 R)
• M14: 8,057,491 km (0.078 R)
• M15: 10,187,914 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.2

Radius: 8.4

Gravity: 10.19 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.37 AU - 2.01 AU

Year: 1419 Days

Day: 9.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 16,450,246 km

• M1: 104,569 km (0.118 R)
• M2: 402,418 km (0.108 R)
• M3: 765,044 km (0.068 R)
• M4: 1,326,634 km (0.09 R)
• M5: 1,689,259 km (0.1 R)
• M6: 1,995,935 km (0.072 R)
• M7: 2,539,125 km (0.09 R)
• M8: 3,283,374 km (0.103 R)
• M9: 3,698,209 km (0.055 R)
• M10: 4,404,461 km (0.08 R)
• M11: 6,561,662 km (0.099 R)
• M12: 6,911,571 km (0.107 R)
• M13: 7,406,291 km (0.057 R)
• M14: 7,952,324 km (0.072 R)
• M15: 8,731,729 km (0.108 R)
• M16: 9,784,449 km (0.076 R)
• M17: 10,076,763 km (0.054 R)
• M18: 10,610,977 km (0.103 R)
• M19: 10,954,304 km (0.105 R)
• M20: 12,440,110 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.4

Radius: 8

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.78 AU - 2.88 AU

Year: 2296 Days

Day: 5.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 16,450,246 km

• M1: 99,782 km (0.091 R)
• M2: 595,549 km (0.071 R)
• M3: 1,111,961 km (0.058 R)
• M4: 1,692,251 km (0.114 R)
• M5: 2,295,430 km (0.071 R)
• M6: 2,886,491 km (0.1 R)
• M7: 3,508,369 km (0.099 R)
• M8: 4,197,716 km (0.092 R)
• M9: 4,828,271 km (0.091 R)
• M10: 7,235,451 km (0.087 R)
• M11: 8,199,609 km (0.08 R)
• M12: 8,867,563 km (0.069 R)
• M13: 10,660,494 km (0.098 R)
• M14: 11,868,048 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.9

Radius: 12.8

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.57 AU - 2.95 AU

Year: 2961 Days

Day: 11.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 16,450,246 km

• M1: 159,172 km (0.115 R)
• M2: 625,917 km (0.114 R)
• M3: 1,357,601 km (0.113 R)
• M4: 2,854,926 km (0.103 R)
• M5: 4,117,382 km (0.103 R)
• M6: 5,080,942 km (0.108 R)
• M7: 5,581,048 km (0.057 R)
• M8: 6,214,445 km (0.115 R)
• M9: 7,395,520 km (0.096 R)
• M10: 8,009,620 km (0.115 R)
• M11: 10,629,976 km (0.105 R)
• M12: 12,639,075 km (0.05 R)
• M13: 13,347,720 km (0.052 R)
• M14: 15,680,699 km (0.093 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 13,239 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit