🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.3

Radius: 9.7

Gravity: 9.55 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.59 AU - 0.73 AU

Year: 370 Days

Day: 9.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,543,808 km

• M1: 120,875 km (0.061 R)
• M2: 496,964 km (0.078 R)
• M3: 913,744 km (0.098 R)
• M4: 2,635,466 km (0.097 R)
• M5: 3,255,250 km (0.107 R)
• M6: 4,143,263 km (0.102 R)
• M7: 4,651,447 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.1

Radius: 8.4

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.82 AU - 1.06 AU

Year: 629 Days

Day: 5.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,543,808 km

• M1: 104,868 km (0.073 R)
• M2: 370,554 km (0.118 R)
• M3: 775,067 km (0.093 R)
• M4: 1,054,515 km (0.052 R)
• M5: 1,660,536 km (0.11 R)
• M6: 2,824,109 km (0.103 R)
• M7: 3,156,665 km (0.06 R)
• M8: 4,185,898 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.3

Radius: 10.4

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.28 AU - 1.8 AU

Year: 1319 Days

Day: 7.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,543,808 km

• M1: 129,402 km (0.082 R)
• M2: 618,438 km (0.069 R)
• M3: 1,691,503 km (0.066 R)
• M4: 2,397,007 km (0.115 R)
• M5: 2,859,713 km (0.036 R)
• M6: 3,341,268 km (0.089 R)
• M7: 3,891,190 km (0.028 R)
• M8: 5,172,496 km (0.086 R)
• M9: 6,694,206 km (0.034 R)
• M10: 8,495,065 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.5

Radius: 11.8

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.37 AU - 1.81 AU

Year: 1384 Days

Day: 12.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,543,808 km

• M1: 146,756 km (0.114 R)
• M2: 556,654 km (0.088 R)
• M3: 1,431,352 km (0.102 R)
• M4: 1,951,504 km (0.026 R)
• M5: 2,675,857 km (0.105 R)
• M6: 3,342,615 km (0.073 R)
• M7: 4,687,799 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513

Radius: 13.1

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.68 AU - 1.86 AU

Year: 1625 Days

Day: 6.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,543,808 km

• M1: 162,912 km (0.086 R)
• M2: 661,671 km (0.058 R)
• M3: 1,131,857 km (0.093 R)
• M4: 1,578,706 km (0.095 R)
• M5: 2,269,699 km (0.105 R)
• M6: 3,303,271 km (0.093 R)
• M7: 3,826,564 km (0.112 R)
• M8: 4,295,703 km (0.047 R)
• M9: 5,122,530 km (0.048 R)
• M10: 5,606,928 km (0.08 R)
• M11: 6,030,141 km (0.081 R)
• M12: 8,108,205 km (0.107 R)
• M13: 9,651,755 km (0.054 R)
• M14: 12,471,675 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.5

Radius: 12.7

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.47 AU - 2.93 AU

Year: 3062 Days

Day: 14.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 49,543,808 km

• M1: 157,975 km (0.106 R)
• M2: 742,005 km (0.039 R)
• M3: 1,270,834 km (0.042 R)
• M4: 2,001,470 km (0.092 R)
• M5: 2,590,138 km (0.117 R)
• M6: 3,125,997 km (0.116 R)
• M7: 3,661,857 km (0.097 R)
• M8: 4,677,477 km (0.116 R)
• M9: 5,123,877 km (0.065 R)
• M10: 5,550,081 km (0.08 R)
• M11: 6,051,383 km (0.073 R)
• M12: 6,610,132 km (0.066 R)
• M13: 7,290,802 km (0.114 R)
• M14: 8,080,379 km (0.094 R)
• M15: 9,440,523 km (0.098 R)
• M16: 10,948,021 km (0.087 R)
• M17: 14,342,696 km (0.047 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 817.9

Radius: 6.3

Gravity: 20.61 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 5.14 AU - 6.44 AU

Year: 9617 Days

Day: 24.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,543,808 km

• M1: 78,389 km (0.113 R)
• M2: 312,959 km (0.066 R)
• M3: 1,387,371 km (0.041 R)
• M4: 2,901,152 km (0.036 R)
• M5: 3,639,417 km (0.102 R)
• M6: 4,555,854 km (0.056 R)
• M7: 5,446,858 km (0.081 R)
• M8: 8,308,217 km (0.075 R)
• M9: 11,141,152 km (0.101 R)
• M10: 13,662,774 km (0.119 R)
• M11: 15,291,296 km (0.059 R)
• M12: 15,907,938 km (0.12 R)
• M13: 26,659,537 km (0.072 R)
• M14: 30,563,593 km (0.095 R)
• M15: 33,672,835 km (0.104 R)
• M16: 37,477,109 km (0.069 R)
• M17: 37,723,945 km (0.087 R)
• M18: 40,252,598 km (0.032 R)
• M19: 41,955,321 km (0.049 R)
• M20: 48,220,181 km (0.104 R)
• M21: 49,543,823 km (0.115 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 11,409 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit