🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.6

Radius: 13.5

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.63 AU - 0.65 AU

Year: 341 Days

Day: 10.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,682,514 km

• M1: 168,148 km (0.11 R)
• M2: 609,462 km (0.117 R)
• M3: 1,075,459 km (0.093 R)
• M4: 2,252,046 km (0.094 R)
• M5: 2,703,383 km (0.086 R)
• M6: 3,414,571 km (0.103 R)
• M7: 4,051,709 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.5

Radius: 9.8

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.7 AU - 0.78 AU

Year: 424 Days

Day: 11.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,682,514 km

• M1: 122,371 km (0.118 R)
• M2: 438,771 km (0.071 R)
• M3: 792,719 km (0.095 R)
• M4: 1,242,261 km (0.113 R)
• M5: 1,749,248 km (0.077 R)
• M6: 2,181,287 km (0.066 R)
• M7: 2,774,592 km (0.116 R)
• M8: 3,109,841 km (0.093 R)
• M9: 3,602,766 km (0.066 R)
• M10: 3,920,811 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.3

Radius: 10.9

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.09 AU - 1.41 AU

Year: 932 Days

Day: 7.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,682,514 km

• M1: 140,024 km (0.106 R)
• M2: 499,208 km (0.075 R)
• M3: 1,719,478 km (0.085 R)
• M4: 2,147,926 km (0.087 R)
• M5: 3,044,317 km (0.07 R)
• M6: 5,382,980 km (0.114 R)
• M7: 5,834,018 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.1

Radius: 11.8

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.2 AU - 1.44 AU

Year: 1011 Days

Day: 11.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,682,514 km

• M1: 146,905 km (0.093 R)
• M2: 516,561 km (0.03 R)
• M3: 961,166 km (0.106 R)
• M4: 1,366,427 km (0.103 R)
• M5: 2,496,489 km (0.11 R)
• M6: 3,554,296 km (0.091 R)
• M7: 4,263,390 km (0.103 R)
• M8: 5,171,449 km (0.068 R)
• M9: 6,409,670 km (0.081 R)
• M10: 7,553,795 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.6

Radius: 12.9

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.09 AU - 2.19 AU

Year: 2088 Days

Day: 12.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,682,514 km

• M1: 160,369 km (0.078 R)
• M2: 633,996 km (0.088 R)
• M3: 1,224,309 km (0.063 R)
• M4: 1,862,045 km (0.087 R)
• M5: 2,301,713 km (0.055 R)
• M6: 3,047,309 km (0.057 R)
• M7: 3,586,459 km (0.098 R)
• M8: 4,622,425 km (0.116 R)
• M9: 5,052,818 km (0.116 R)
• M10: 5,921,533 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.4

Radius: 12.6

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.75 AU - 4.55 AU

Year: 4650 Days

Day: 6.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,682,514 km

• M1: 487,689 km (0.081 R)
• M2: 901,178 km (0.113 R)
• M3: 1,353,113 km (0.114 R)
• M4: 2,490,356 km (0.057 R)
• M5: 3,624,457 km (0.089 R)
• M6: 6,067,989 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 303.6

Radius: 6.6

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 6.84 AU - 10.4 AU

Year: 16877 Days

Day: 18 Hours

Environment

Temp: -239 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,682,514 km

• M1: 82,279 km (0.103 R)
• M2: 610,659 km (0.074 R)
• M3: 909,854 km (0.087 R)
• M4: 1,122,882 km (0.096 R)
• M5: 1,991,896 km (0.111 R)
• M6: 2,318,767 km (0.112 R)
• M7: 3,150,232 km (0.088 R)
• M8: 3,442,247 km (0.033 R)
• M9: 3,699,256 km (0.12 R)
• M10: 4,137,279 km (0.067 R)
• M11: 4,398,477 km (0.12 R)
• M12: 5,910,013 km (0.1 R)
• M13: 8,593,799 km (0.118 R)
• M14: 10,758,780 km (0.115 R)
• M15: 11,310,048 km (0.062 R)
• M16: 11,649,635 km (0.086 R)
• M17: 25,583,031 km (0.071 R)
• M18: 29,442,806 km (0.032 R)
• M19: 30,410,704 km (0.115 R)
• M20: 46,705,802 km (0.096 R)
• M21: 49,210,818 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 65.6

Radius: 3.9

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 8.08 AU - 10.6 AU

Year: 19035 Days

Day: 17.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,682,514 km

• M1: 61,036 km (0.05 R)
• M2: 251,324 km (0.086 R)
• M3: 382,821 km (0.104 R)
• M4: 1,181,973 km (0.096 R)
• M5: 1,591,721 km (0.069 R)
• M6: 2,169,020 km (0.066 R)
• M7: 5,798,413 km (0.117 R)
• M8: 7,062,067 km (0.083 R)
• M9: 8,259,897 km (0.037 R)
• M10: 8,948,346 km (0.088 R)
• M11: 18,729,205 km (0.119 R)
• M12: 22,044,144 km (0.096 R)
• M13: 28,522,779 km (0.046 R)
• M14: 31,801,515 km (0.098 R)
• M15: 32,289,504 km (0.114 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: 524 - 14,497 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit