🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

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: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.39 AU - 0.65 AU

Year: 246 Days

Day: 46.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 49 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,442,836 km

• M1: 35,305 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.5

Radius: 8.8

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.63 AU - 0.85 AU

Year: 418 Days

Day: 14.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,442,836 km

• M1: 109,655 km (0.082 R)
• M2: 470,485 km (0.073 R)
• M3: 749,934 km (0.099 R)
• M4: 1,178,682 km (0.104 R)
• M5: 1,510,490 km (0.086 R)
• M6: 1,834,219 km (0.061 R)
• M7: 2,118,007 km (0.06 R)
• M8: 2,664,039 km (0.107 R)
• M9: 3,324,214 km (0.091 R)
• M10: 3,649,590 km (0.113 R)
• M11: 4,049,166 km (0.071 R)
• M12: 4,651,895 km (0.066 R)
• M13: 5,028,882 km (0.086 R)
• M14: 5,410,057 km (0.055 R)
• M15: 5,776,273 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.4

Radius: 11

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.65 AU - 0.85 AU

Year: 426 Days

Day: 7.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,442,836 km

• M1: 136,732 km (0.116 R)
• M2: 514,617 km (0.067 R)
• M3: 894,146 km (0.1 R)
• M4: 1,308,832 km (0.106 R)
• M5: 1,898,547 km (0.119 R)
• M6: 3,538,588 km (0.095 R)
• M7: 4,053,055 km (0.088 R)
• M8: 4,821,240 km (0.081 R)
• M9: 5,185,661 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.6

Radius: 14.2

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.55 AU - 2.29 AU

Year: 1745 Days

Day: 13 Hours

Environment

Temp: -187 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 60,442,836 km

• M1: 177,124 km (0.052 R)
• M2: 685,158 km (0.109 R)
• M3: 1,523,804 km (0.064 R)
• M4: 2,081,654 km (0.034 R)
• M5: 3,498,945 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.8

Radius: 14.2

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2 AU - 2 AU

Year: 1855 Days

Day: 8.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,442,836 km

• M1: 176,675 km (0.078 R)
• M2: 637,586 km (0.117 R)
• M3: 1,167,761 km (0.099 R)
• M4: 3,131,233 km (0.093 R)
• M5: 3,582,420 km (0.078 R)
• M6: 4,195,323 km (0.119 R)
• M7: 4,654,588 km (0.028 R)
• M8: 5,266,144 km (0.092 R)
• M9: 6,127,828 km (0.085 R)
• M10: 6,960,340 km (0.086 R)
• M11: 9,373,354 km (0.032 R)
• M12: 10,447,766 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830

Radius: 9.8

Gravity: 8.64 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.08 AU - 3.32 AU

Year: 2910 Days

Day: 6.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,442,836 km

• M1: 123,717 km (0.108 R)
• M2: 537,206 km (0.106 R)
• M3: 860,188 km (0.039 R)
• M4: 1,308,383 km (0.116 R)
• M5: 2,062,356 km (0.038 R)
• M6: 2,439,193 km (0.091 R)
• M7: 2,928,678 km (0.074 R)
• M8: 3,314,939 km (0.109 R)
• M9: 3,815,194 km (0.09 R)
• M10: 4,567,522 km (0.117 R)
• M11: 5,188,204 km (0.083 R)
• M12: 5,518,965 km (0.106 R)
• M13: 6,925,633 km (0.095 R)
• M14: 7,454,312 km (0.053 R)
• M15: 7,843,566 km (0.036 R)
• M16: 9,388,463 km (0.114 R)
• M17: 10,075,566 km (0.091 R)
• M18: 11,464,433 km (0.043 R)
• M19: 11,983,837 km (0.091 R)
• M20: 12,293,953 km (0.098 R)
• M21: 16,016,696 km (0.118 R)
• M22: 16,666,100 km (0.116 R)
• M23: 18,017,568 km (0.049 R)
• M24: 18,958,239 km (0.097 R)
• M25: 19,562,614 km (0.075 R)
• M26: 22,109,069 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.3

Radius: 13.6

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.3 AU - 4.02 AU

Year: 4593 Days

Day: 6.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,442,836 km

• M1: 169,195 km (0.086 R)
• M2: 636,689 km (0.083 R)
• M3: 1,823,149 km (0.08 R)
• M4: 2,453,854 km (0.099 R)
• M5: 2,928,678 km (0.09 R)
• M6: 3,588,404 km (0.078 R)
• M7: 4,089,707 km (0.095 R)
• M8: 4,514,415 km (0.072 R)
• M9: 5,288,734 km (0.07 R)
• M10: 6,582,755 km (0.102 R)
• M11: 7,304,565 km (0.117 R)
• M12: 8,828,818 km (0.082 R)
• M13: 9,748,844 km (0.073 R)
• M14: 10,253,588 km (0.094 R)
• M15: 11,315,882 km (0.097 R)
• M16: 17,693,987 km (0.072 R)
• M17: 22,245,353 km (0.062 R)
• M18: 28,534,597 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 286.2

Radius: 3.1

Gravity: 29.78 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 8.12 AU - 12.62 AU

Year: 21907 Days

Day: 15.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,442,836 km

• M1: 38,596 km (0.077 R)
• M2: 286,031 km (0.092 R)
• M3: 536,458 km (0.066 R)
• M4: 1,786,348 km (0.085 R)
• M5: 2,628,435 km (0.08 R)
• M6: 3,073,488 km (0.081 R)
• M7: 3,875,482 km (0.112 R)
• M8: 4,513,817 km (0.097 R)
• M9: 4,807,627 km (0.087 R)
• M10: 5,995,135 km (0.12 R)
• M11: 7,145,094 km (0.068 R)
• M12: 10,309,238 km (0.069 R)
• M13: 12,955,774 km (0.106 R)
• M14: 13,481,162 km (0.116 R)
• M15: 23,057,370 km (0.091 R)
• M16: 25,419,820 km (0.066 R)
• M17: 27,507,757 km (0.051 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: 245 - 19,751 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit