🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.51 AU - 0.69 AU

Year: 296 Days

Day: 38.1 Hours

Environment

Temp: -127 °C

Axial Tilt: 16.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,708,057 km

• M1: 307,274 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.8

Radius: 13.9

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.7 AU - 0.82 AU

Year: 421 Days

Day: 5.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 46,708,057 km

• M1: 172,935 km (0.071 R)
• M2: 612,005 km (0.083 R)
• M3: 1,222,364 km (0.116 R)
• M4: 1,703,172 km (0.113 R)
• M5: 2,201,033 km (0.102 R)
• M6: 3,881,167 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971

Radius: 14.2

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.86 AU - 0.9 AU

Year: 525 Days

Day: 12.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,708,057 km

• M1: 176,525 km (0.084 R)
• M2: 666,309 km (0.033 R)
• M3: 1,171,800 km (0.04 R)
• M4: 1,629,869 km (0.103 R)
• M5: 2,354,222 km (0.066 R)
• M6: 2,997,493 km (0.053 R)
• M7: 3,621,316 km (0.118 R)
• M8: 4,346,117 km (0.119 R)
• M9: 5,014,221 km (0.103 R)
• M10: 5,532,728 km (0.095 R)
• M11: 6,144,433 km (0.087 R)
• M12: 6,657,853 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.8

Radius: 12

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.19 AU - 1.47 AU

Year: 975 Days

Day: 13.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 46,708,057 km

• M1: 149,299 km (0.112 R)
• M2: 921,224 km (0.052 R)
• M3: 1,428,510 km (0.112 R)
• M4: 2,359,906 km (0.04 R)
• M5: 3,755,355 km (0.111 R)
• M6: 4,553,011 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903

Radius: 14.8

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.42 AU - 1.62 AU

Year: 1192 Days

Day: 11.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,708,057 km

• M1: 192,832 km (0.088 R)
• M2: 655,538 km (0.113 R)
• M3: 1,133,353 km (0.108 R)
• M4: 2,115,463 km (0.076 R)
• M5: 2,975,202 km (0.09 R)
• M6: 3,872,490 km (0.076 R)
• M7: 4,394,437 km (0.064 R)
• M8: 5,668,114 km (0.056 R)
• M9: 6,158,944 km (0.084 R)
• M10: 6,874,172 km (0.1 R)
• M11: 8,557,597 km (0.062 R)
• M12: 10,403,186 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.9

Radius: 11.8

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.49 AU - 2.79 AU

Year: 2727 Days

Day: 8.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 46,708,057 km

• M1: 147,354 km (0.064 R)
• M2: 515,963 km (0.087 R)
• M3: 984,204 km (0.033 R)
• M4: 1,451,548 km (0.109 R)
• M5: 2,131,919 km (0.108 R)
• M6: 2,509,355 km (0.028 R)
• M7: 2,998,390 km (0.084 R)
• M8: 3,531,856 km (0.108 R)
• M9: 4,406,555 km (0.101 R)
• M10: 4,883,772 km (0.075 R)
• M11: 6,554,631 km (0.114 R)
• M12: 7,026,313 km (0.075 R)
• M13: 8,647,954 km (0.093 R)
• M14: 9,695,887 km (0.11 R)
• M15: 11,071,140 km (0.074 R)
• M16: 11,870,142 km (0.1 R)
• M17: 12,617,384 km (0.118 R)
• M18: 13,302,392 km (0.109 R)
• M19: 14,746,909 km (0.112 R)
• M20: 16,133,981 km (0.087 R)
• M21: 17,051,016 km (0.037 R)
• M22: 18,520,067 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.9

Radius: 11.2

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 5.16 AU - 6.12 AU

Year: 8516 Days

Day: 13 Hours

Environment

Temp: -220 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 46,708,057 km

• M1: 139,276 km (0.037 R)
• M2: 595,699 km (0.079 R)
• M3: 1,005,896 km (0.107 R)
• M4: 1,384,079 km (0.103 R)
• M5: 2,084,946 km (0.105 R)
• M6: 4,354,644 km (0.066 R)
• M7: 4,731,481 km (0.065 R)
• M8: 5,485,006 km (0.089 R)
• M9: 7,111,584 km (0.114 R)
• M10: 7,472,264 km (0.085 R)
• M11: 8,808,921 km (0.117 R)
• M12: 16,318,585 km (0.097 R)
• M13: 17,304,584 km (0.025 R)
• M14: 18,255,279 km (0.091 R)
• M15: 19,163,487 km (0.091 R)
• M16: 19,706,976 km (0.051 R)
• M17: 20,101,466 km (0.094 R)
• M18: 23,012,491 km (0.105 R)
• M19: 28,037,633 km (0.078 R)
• M20: 31,658,649 km (0.088 R)
• M21: 33,079,680 km (0.111 R)
• M22: 34,542,597 km (0.113 R)
• M23: 36,048,300 km (0.049 R)
• M24: 40,192,460 km (0.064 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 17,364 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit