🌌 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 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.51 AU - 0.75 AU

Year: 318 Days

Day: 14.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 43.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.8

Radius: 9.9

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.67 AU - 0.69 AU

Year: 357 Days

Day: 5.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 23,734,908 km

• M1: 123,119 km (0.062 R)
• M2: 434,731 km (0.1 R)
• M3: 1,034,619 km (0.117 R)
• M4: 1,678,787 km (0.117 R)
• M5: 2,199,089 km (0.115 R)
• M6: 2,554,084 km (0.064 R)
• M7: 3,444,641 km (0.094 R)
• M8: 3,776,299 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.8

Radius: 9.3

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.71 AU - 0.77 AU

Year: 405 Days

Day: 13.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 23,734,908 km

• M1: 115,639 km (0.086 R)
• M2: 415,732 km (0.102 R)
• M3: 1,631,514 km (0.11 R)
• M4: 2,158,847 km (0.091 R)
• M5: 2,876,318 km (0.12 R)
• M6: 3,222,189 km (0.104 R)
• M7: 3,522,880 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.3

Radius: 11.8

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.69 AU - 1.01 AU

Year: 498 Days

Day: 12.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,734,908 km

• M1: 146,756 km (0.041 R)
• M2: 544,536 km (0.086 R)
• M3: 985,850 km (0.112 R)
• M4: 1,368,073 km (0.086 R)
• M5: 1,795,474 km (0.109 R)
• M6: 2,227,363 km (0.109 R)
• M7: 2,782,969 km (0.098 R)
• M8: 3,195,411 km (0.078 R)
• M9: 3,648,991 km (0.112 R)
• M10: 4,470,583 km (0.111 R)
• M11: 5,039,952 km (0.087 R)
• M12: 5,892,511 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.2

Radius: 9.4

Gravity: 8.13 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.96 AU - 1.32 AU

Year: 774 Days

Day: 10.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 56.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,734,908 km

• M1: 117,285 km (0.065 R)
• M2: 588,219 km (0.1 R)
• M3: 885,919 km (0.105 R)
• M4: 1,240,765 km (0.084 R)
• M5: 1,560,904 km (0.105 R)
• M6: 2,117,109 km (0.102 R)
• M7: 2,513,394 km (0.062 R)
• M8: 2,971,163 km (0.074 R)
• M9: 4,085,219 km (0.068 R)
• M10: 4,501,550 km (0.092 R)
• M11: 4,840,837 km (0.096 R)
• M12: 5,307,583 km (0.12 R)
• M13: 5,902,982 km (0.082 R)
• M14: 7,341,815 km (0.059 R)
• M15: 8,007,525 km (0.119 R)
• M16: 8,584,075 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.5

Radius: 14

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.6 AU - 1.88 AU

Year: 1459 Days

Day: 5.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 23,734,908 km

• M1: 174,132 km (0.096 R)
• M2: 821,891 km (0.1 R)
• M3: 1,297,762 km (0.12 R)
• M4: 1,749,547 km (0.075 R)
• M5: 2,218,387 km (0.081 R)
• M6: 3,602,167 km (0.06 R)
• M7: 4,723,702 km (0.11 R)
• M8: 5,376,398 km (0.081 R)
• M9: 6,479,981 km (0.061 R)
• M10: 7,493,357 km (0.095 R)
• M11: 8,327,814 km (0.095 R)
• M12: 9,313,365 km (0.109 R)
• M13: 10,086,636 km (0.074 R)
• M14: 11,656,217 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.3

Radius: 11.5

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.84 AU - 3 AU

Year: 3173 Days

Day: 7.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 23,734,908 km

• M1: 147,354 km (0.106 R)
• M2: 557,701 km (0.058 R)
• M3: 916,137 km (0.098 R)
• M4: 1,437,486 km (0.113 R)
• M5: 1,804,898 km (0.109 R)
• M6: 2,935,559 km (0.072 R)
• M7: 4,352,999 km (0.079 R)
• M8: 4,722,356 km (0.075 R)
• M9: 5,419,332 km (0.1 R)
• M10: 6,212,201 km (0.063 R)
• M11: 6,833,481 km (0.078 R)
• M12: 7,366,498 km (0.087 R)
• M13: 9,022,248 km (0.094 R)
• M14: 10,581,207 km (0.108 R)
• M15: 11,774,699 km (0.03 R)
• M16: 13,294,164 km (0.056 R)
• M17: 13,779,310 km (0.058 R)
• M18: 15,732,011 km (0.104 R)
• M19: 16,330,104 km (0.106 R)
• M20: 17,227,092 km (0.119 R)
• M21: 17,862,584 km (0.103 R)
• M22: 19,926,287 km (0.12 R)
• M23: 20,820,583 km (0.054 R)
• M24: 21,343,427 km (0.1 R)
• M25: 22,620,544 km (0.111 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: 282 - 14,392 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit