🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.45 AU - 0.69 AU

Year: 278 Days

Day: 21.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.5

Radius: 11.5

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.74 AU - 1 AU

Year: 524 Days

Day: 7.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,999,816 km

• M1: 143,016 km (0.11 R)
• M2: 503,846 km (0.093 R)
• M3: 971,937 km (0.117 R)
• M4: 1,354,609 km (0.095 R)
• M5: 1,754,185 km (0.101 R)
• M6: 2,307,098 km (0.078 R)
• M7: 2,841,761 km (0.12 R)
• M8: 3,570,901 km (0.048 R)
• M9: 4,133,090 km (0.103 R)
• M10: 4,645,911 km (0.101 R)
• M11: 5,554,868 km (0.106 R)
• M12: 6,033,581 km (0.093 R)
• M13: 6,424,929 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.9

Radius: 13.1

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.8 AU - 1.08 AU

Year: 588 Days

Day: 12.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,999,816 km

• M1: 162,912 km (0.08 R)
• M2: 635,043 km (0.097 R)
• M3: 1,256,323 km (0.1 R)
• M4: 2,144,785 km (0.114 R)
• M5: 2,633,970 km (0.069 R)
• M6: 3,122,856 km (0.073 R)
• M7: 3,939,660 km (0.102 R)
• M8: 4,392,343 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.1

Radius: 13.8

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.06 AU - 2.22 AU

Year: 2021 Days

Day: 13.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,999,816 km

• M1: 171,589 km (0.101 R)
• M2: 615,146 km (0.112 R)
• M3: 1,210,247 km (0.075 R)
• M4: 1,753,736 km (0.109 R)
• M5: 2,332,081 km (0.119 R)
• M6: 3,082,165 km (0.074 R)
• M7: 3,548,611 km (0.075 R)
• M8: 4,006,829 km (0.082 R)
• M9: 4,504,841 km (0.113 R)
• M10: 5,329,873 km (0.066 R)
• M11: 6,278,473 km (0.067 R)
• M12: 7,647,892 km (0.056 R)
• M13: 9,240,810 km (0.034 R)
• M14: 10,717,042 km (0.076 R)
• M15: 11,155,962 km (0.069 R)
• M16: 11,721,442 km (0.116 R)
• M17: 12,385,357 km (0.099 R)
• M18: 13,618,193 km (0.067 R)
• M19: 14,133,558 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.2

Radius: 11.9

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.35 AU - 2.89 AU

Year: 2738 Days

Day: 5.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,999,816 km

• M1: 147,952 km (0.1 R)
• M2: 597,793 km (0.099 R)
• M3: 990,488 km (0.075 R)
• M4: 2,179,043 km (0.069 R)
• M5: 2,602,255 km (0.083 R)
• M6: 3,146,342 km (0.06 R)
• M7: 3,918,118 km (0.086 R)
• M8: 4,901,873 km (0.089 R)
• M9: 5,711,048 km (0.073 R)
• M10: 6,524,562 km (0.118 R)
• M11: 7,810,056 km (0.098 R)
• M12: 8,812,511 km (0.112 R)
• M13: 10,380,147 km (0.112 R)
• M14: 12,420,962 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.5

Radius: 10.5

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.69 AU - 3.55 AU

Year: 3558 Days

Day: 12.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,999,816 km

• M1: 130,599 km (0.116 R)
• M2: 642,672 km (0.108 R)
• M3: 1,033,272 km (0.112 R)
• M4: 1,456,335 km (0.097 R)
• M5: 2,411,218 km (0.115 R)
• M6: 3,246,872 km (0.099 R)
• M7: 3,792,755 km (0.073 R)
• M8: 4,879,434 km (0.064 R)
• M9: 5,262,554 km (0.084 R)
• M10: 7,080,916 km (0.117 R)
• M11: 7,856,581 km (0.069 R)
• M12: 8,474,869 km (0.074 R)

Asteroid Belt

Center: 6.76 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 10.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 233.6

Radius: 7.3

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 7.95 AU - 12.83 AU

Year: 21624 Days

Day: 19 Hours

Environment

Temp: -224 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,999,816 km

• M1: 90,806 km (0.119 R)
• M2: 1,240,914 km (0.054 R)
• M3: 1,805,198 km (0.103 R)
• M4: 3,860,074 km (0.069 R)
• M5: 6,158,645 km (0.088 R)
• M6: 6,429,716 km (0.066 R)
• M7: 7,121,457 km (0.12 R)
• M8: 7,683,047 km (0.096 R)
• M9: 8,320,484 km (0.089 R)
• M10: 9,392,652 km (0.093 R)
• M11: 10,336,166 km (0.094 R)
• M12: 10,719,585 km (0.092 R)
• M13: 11,283,868 km (0.092 R)
• M14: 13,095,648 km (0.114 R)
• M15: 15,233,252 km (0.118 R)
• M16: 15,801,873 km (0.119 R)
• M17: 24,536,744 km (0.097 R)
• M18: 27,656,158 km (0.103 R)
• M19: 27,971,361 km (0.074 R)
• M20: 31,598,810 km (0.049 R)
• M21: 32,290,551 km (0.103 R)
• M22: 32,757,147 km (0.071 R)
• M23: 36,401,500 km (0.049 R)
• M24: 39,771,192 km (0.091 R)
• M25: 40,577,375 km (0.079 R)
• M26: 41,806,920 km (0.092 R)
• M27: 42,780,204 km (0.094 R)
• M28: 44,053,731 km (0.099 R)
• M29: 46,084,671 km (0.114 R)
• M30: 47,723,666 km (0.108 R)
• M31: 48,329,238 km (0.072 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: 193 - 18,150 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit