🌌 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 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.62 AU - 0.68 AU

Year: 338 Days

Day: 29 Hours

Environment

Temp: -132 °C

Axial Tilt: 37.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.8

Radius: 14.6

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.96 AU - 1.04 AU

Year: 646 Days

Day: 13.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,394,193 km

• M1: 182,659 km (0.092 R)
• M2: 660,175 km (0.039 R)
• M3: 1,264,700 km (0.06 R)
• M4: 2,042,460 km (0.11 R)
• M5: 3,210,819 km (0.047 R)
• M6: 3,808,911 km (0.103 R)
• M7: 4,972,184 km (0.046 R)
• M8: 5,554,270 km (0.094 R)
• M9: 6,401,143 km (0.097 R)
• M10: 6,856,070 km (0.096 R)
• M11: 7,647,443 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.1

Radius: 8.6

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.98 AU - 1.18 AU

Year: 725 Days

Day: 7.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,394,193 km

• M1: 107,411 km (0.094 R)
• M2: 410,048 km (0.05 R)
• M3: 845,677 km (0.051 R)
• M4: 1,132,605 km (0.083 R)
• M5: 1,630,766 km (0.063 R)
• M6: 2,360,206 km (0.07 R)
• M7: 2,793,890 km (0.119 R)
• M8: 3,119,564 km (0.08 R)
• M9: 3,630,591 km (0.112 R)
• M10: 3,965,840 km (0.094 R)
• M11: 4,580,687 km (0.117 R)
• M12: 5,098,295 km (0.088 R)
• M13: 5,739,173 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.1

Radius: 12.4

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.26 AU - 1.8 AU

Year: 1222 Days

Day: 12 Hours

Environment

Temp: -178 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,394,193 km

• M1: 154,235 km (0.083 R)
• M2: 542,591 km (0.111 R)
• M3: 1,006,794 km (0.094 R)
• M4: 1,586,186 km (0.091 R)
• M5: 2,099,905 km (0.053 R)
• M6: 2,646,237 km (0.055 R)
• M7: 4,042,284 km (0.117 R)
• M8: 5,618,148 km (0.108 R)
• M9: 6,975,150 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.8

Radius: 12.3

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.78 AU - 2.28 AU

Year: 1867 Days

Day: 5.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 76,394,193 km

• M1: 153,039 km (0.112 R)
• M2: 1,205,759 km (0.093 R)
• M3: 1,606,532 km (0.107 R)
• M4: 2,579,516 km (0.107 R)
• M5: 3,376,274 km (0.071 R)
• M6: 5,981,970 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.5

Radius: 11

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.52 AU - 2.72 AU

Year: 2738 Days

Day: 11.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,394,193 km

• M1: 136,732 km (0.111 R)
• M2: 728,990 km (0.113 R)
• M3: 1,100,143 km (0.116 R)
• M4: 1,600,697 km (0.082 R)
• M5: 2,362,599 km (0.076 R)
• M6: 3,808,911 km (0.069 R)
• M7: 4,158,073 km (0.076 R)
• M8: 4,874,048 km (0.077 R)
• M9: 5,412,750 km (0.098 R)
• M10: 5,882,637 km (0.03 R)
• M11: 6,238,680 km (0.103 R)
• M12: 7,332,240 km (0.094 R)
• M13: 8,411,589 km (0.117 R)
• M14: 8,793,961 km (0.081 R)
• M15: 9,260,856 km (0.108 R)
• M16: 12,869,456 km (0.118 R)
• M17: 13,378,089 km (0.052 R)
• M18: 16,446,042 km (0.085 R)
• M19: 16,990,279 km (0.088 R)
• M20: 17,602,733 km (0.061 R)
• M21: 18,403,380 km (0.05 R)
• M22: 18,990,103 km (0.072 R)
• M23: 20,888,351 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 956.4

Radius: 7.1

Gravity: 18.97 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 8.74 AU - 8.98 AU

Year: 17028 Days

Day: 15.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,394,193 km

• M1: 88,263 km (0.093 R)
• M2: 311,463 km (0.052 R)
• M3: 1,078,601 km (0.111 R)
• M4: 2,361,552 km (0.077 R)
• M5: 2,707,721 km (0.09 R)
• M6: 3,984,838 km (0.099 R)
• M7: 5,194,936 km (0.028 R)
• M8: 5,424,718 km (0.109 R)
• M9: 5,661,232 km (0.071 R)
• M10: 5,904,778 km (0.1 R)
• M11: 7,228,719 km (0.1 R)
• M12: 8,956,125 km (0.091 R)
• M13: 11,642,454 km (0.057 R)
• M14: 17,751,283 km (0.109 R)
• M15: 18,450,653 km (0.086 R)
• M16: 18,987,261 km (0.069 R)
• M17: 20,374,033 km (0.113 R)
• M18: 23,038,222 km (0.065 R)
• M19: 28,688,084 km (0.061 R)
• M20: 31,260,719 km (0.058 R)
• M21: 33,849,959 km (0.044 R)
• M22: 35,607,435 km (0.094 R)
• M23: 37,567,466 km (0.084 R)
• M24: 38,140,276 km (0.1 R)
• M25: 39,450,604 km (0.111 R)
• M26: 39,745,910 km (0.091 R)
• M27: 45,153,724 km (0.058 R)
• M28: 54,976,918 km (0.109 R)
• M29: 60,676,896 km (0.097 R)
• M30: 65,098,710 km (0.06 R)
• M31: 68,446,262 km (0.102 R)
• M32: 69,300,765 km (0.093 R)
• M33: 69,730,559 km (0.08 R)
• M34: 71,249,277 km (0.083 R)
• M35: 73,011,690 km (0.073 R)
• M36: 76,394,247 km (0.108 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 397 - 13,298 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit