🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.1

Radius: 11.6

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.56 AU - 0.8 AU

Year: 357 Days

Day: 11.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,985,774 km

• M1: 144,362 km (0.054 R)
• M2: 574,306 km (0.091 R)
• M3: 1,268,740 km (0.105 R)
• M4: 1,797,418 km (0.09 R)
• M5: 2,504,568 km (0.102 R)
• M6: 3,325,561 km (0.037 R)
• M7: 3,857,231 km (0.118 R)
• M8: 4,292,711 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.9

Radius: 10.4

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.76 AU - 0.88 AU

Year: 472 Days

Day: 10.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 33,985,774 km

• M1: 129,552 km (0.1 R)
• M2: 734,974 km (0.09 R)
• M3: 1,379,741 km (0.059 R)
• M4: 1,720,824 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.6

Radius: 11

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.96 AU - 1 AU

Year: 617 Days

Day: 10.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,985,774 km

• M1: 136,882 km (0.119 R)
• M2: 750,084 km (0.044 R)
• M3: 1,854,415 km (0.102 R)
• M4: 2,386,834 km (0.113 R)
• M5: 2,868,240 km (0.113 R)
• M6: 3,299,381 km (0.057 R)
• M7: 4,042,134 km (0.088 R)
• M8: 4,523,391 km (0.108 R)
• M9: 4,975,775 km (0.097 R)
• M10: 5,692,648 km (0.117 R)
• M11: 6,740,431 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.4

Radius: 11.9

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.02 AU - 1.54 AU

Year: 921 Days

Day: 6.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,985,774 km

• M1: 147,952 km (0.065 R)
• M2: 545,883 km (0.062 R)
• M3: 939,325 km (0.089 R)
• M4: 1,330,224 km (0.057 R)
• M5: 1,832,424 km (0.116 R)
• M6: 2,406,731 km (0.11 R)
• M7: 3,123,903 km (0.098 R)
• M8: 4,207,590 km (0.109 R)
• M9: 4,692,287 km (0.116 R)
• M10: 5,142,427 km (0.056 R)
• M11: 6,109,577 km (0.103 R)
• M12: 7,016,140 km (0.054 R)
• M13: 8,156,076 km (0.082 R)
• M14: 8,604,570 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.1

Radius: 14

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.08 AU - 1.5 AU

Year: 932 Days

Day: 10.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,985,774 km

• M1: 174,132 km (0.104 R)
• M2: 683,513 km (0.062 R)
• M3: 1,374,655 km (0.083 R)
• M4: 2,028,996 km (0.11 R)
• M5: 2,946,480 km (0.084 R)
• M6: 3,973,768 km (0.119 R)
• M7: 4,505,439 km (0.092 R)
• M8: 5,084,383 km (0.103 R)
• M9: 5,636,399 km (0.099 R)
• M10: 7,653,876 km (0.047 R)
• M11: 8,356,238 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.7

Radius: 8.6

Gravity: 10.54 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.38 AU - 1.48 AU

Year: 1087 Days

Day: 14.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,985,774 km

• M1: 108,010 km (0.097 R)
• M2: 402,867 km (0.083 R)
• M3: 1,030,131 km (0.117 R)
• M4: 1,332,767 km (0.099 R)
• M5: 1,713,344 km (0.108 R)
• M6: 2,310,539 km (0.101 R)
• M7: 3,398,415 km (0.106 R)
• M8: 3,721,097 km (0.116 R)
• M9: 4,166,301 km (0.061 R)
• M10: 4,795,809 km (0.119 R)
• M11: 5,954,743 km (0.092 R)
• M12: 6,448,715 km (0.032 R)
• M13: 6,753,147 km (0.105 R)
• M14: 9,547,486 km (0.098 R)
• M15: 9,882,136 km (0.081 R)
• M16: 10,255,981 km (0.05 R)
• M17: 11,333,235 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59.5

Radius: 5.3

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 8.2 AU - 11.9 AU

Year: 20257 Days

Day: 15.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,985,774 km

• M1: 68,815 km (0.087 R)
• M2: 238,459 km (0.055 R)
• M3: 818,600 km (0.107 R)
• M4: 990,936 km (0.095 R)
• M5: 1,622,239 km (0.08 R)
• M6: 1,927,120 km (0.092 R)
• M7: 2,253,094 km (0.066 R)
• M8: 2,877,216 km (0.034 R)
• M9: 7,466,131 km (0.113 R)
• M10: 9,597,751 km (0.108 R)
• M11: 11,306,009 km (0.11 R)
• M12: 13,153,094 km (0.112 R)
• M13: 14,780,270 km (0.098 R)
• M14: 16,162,704 km (0.069 R)
• M15: 17,045,032 km (0.102 R)
• M16: 17,498,014 km (0.091 R)
• M17: 22,711,799 km (0.113 R)
• M18: 25,626,863 km (0.094 R)
• M19: 31,698,742 km (0.075 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: 508 - 11,264 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit