🌌 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: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.65 AU - 0.65 AU

Year: 333 Days

Day: 43.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 6.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,522,733 km

• M1: 542,591 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.1

Radius: 8.4

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.63 AU - 1.01 AU

Year: 472 Days

Day: 7.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,522,733 km

• M1: 105,766 km (0.12 R)
• M2: 429,047 km (0.099 R)
• M3: 917,185 km (0.079 R)
• M4: 1,238,072 km (0.102 R)
• M5: 1,634,058 km (0.032 R)
• M6: 1,986,809 km (0.096 R)
• M7: 2,303,508 km (0.096 R)
• M8: 2,720,587 km (0.108 R)
• M9: 3,328,403 km (0.063 R)
• M10: 3,647,196 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.8

Radius: 14.1

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.18 AU - 1.22 AU

Year: 836 Days

Day: 6.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,522,733 km

• M1: 175,329 km (0.08 R)
• M2: 802,892 km (0.073 R)
• M3: 1,434,045 km (0.045 R)
• M4: 2,069,687 km (0.047 R)
• M5: 2,964,880 km (0.11 R)
• M6: 3,963,745 km (0.099 R)
• M7: 4,865,521 km (0.069 R)
• M8: 5,365,627 km (0.084 R)
• M9: 6,318,864 km (0.04 R)
• M10: 6,779,925 km (0.071 R)
• M11: 7,598,824 km (0.116 R)
• M12: 8,146,651 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.6

Radius: 14.2

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 3.18 AU - 3.5 AU

Year: 3881 Days

Day: 6.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 79,522,733 km

• M1: 176,675 km (0.036 R)
• M2: 704,456 km (0.077 R)
• M3: 1,230,442 km (0.105 R)
• M4: 2,189,066 km (0.072 R)
• M5: 2,664,787 km (0.1 R)
• M6: 3,602,018 km (0.07 R)
• M7: 4,704,554 km (0.07 R)
• M8: 5,658,240 km (0.105 R)
• M9: 6,372,420 km (0.073 R)
• M10: 6,968,867 km (0.068 R)
• M11: 7,478,846 km (0.064 R)
• M12: 8,743,846 km (0.112 R)
• M13: 9,373,952 km (0.097 R)
• M14: 11,530,106 km (0.114 R)
• M15: 13,080,239 km (0.06 R)
• M16: 13,534,568 km (0.087 R)
• M17: 14,188,311 km (0.111 R)
• M18: 17,558,751 km (0.051 R)
• M19: 19,137,906 km (0.097 R)

Asteroid Belt

Center: 4.55 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.7

Radius: 8.4

Gravity: 8.87 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.04 AU - 6.46 AU

Year: 8767 Days

Day: 9.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 79,522,733 km

• M1: 104,419 km (0.117 R)
• M2: 842,834 km (0.107 R)
• M3: 1,206,507 km (0.07 R)
• M4: 2,865,248 km (0.044 R)
• M5: 3,185,986 km (0.106 R)
• M6: 3,626,552 km (0.033 R)
• M7: 4,687,649 km (0.096 R)
• M8: 5,708,505 km (0.114 R)
• M9: 5,976,884 km (0.118 R)
• M10: 7,213,460 km (0.104 R)
• M11: 8,353,096 km (0.097 R)
• M12: 11,560,774 km (0.119 R)
• M13: 11,828,853 km (0.084 R)
• M14: 12,943,058 km (0.065 R)
• M15: 13,349,067 km (0.097 R)
• M16: 13,703,763 km (0.099 R)
• M17: 15,378,661 km (0.102 R)
• M18: 16,298,838 km (0.099 R)
• M19: 17,324,929 km (0.084 R)
• M20: 20,193,618 km (0.107 R)
• M21: 20,818,937 km (0.08 R)
• M22: 22,108,172 km (0.108 R)
• M23: 23,793,541 km (0.095 R)
• M24: 24,315,488 km (0.113 R)
• M25: 30,980,971 km (0.077 R)
• M26: 32,339,918 km (0.087 R)
• M27: 32,659,010 km (0.119 R)
• M28: 35,967,218 km (0.117 R)
• M29: 38,055,903 km (0.07 R)
• M30: 42,219,212 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 928.6

Radius: 3.1

Gravity: 96.63 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 8.49 AU - 10.33 AU

Year: 18353 Days

Day: 22.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 79,522,733 km

• M1: 42,935 km (0.093 R)
• M2: 627,862 km (0.062 R)
• M3: 1,165,068 km (0.034 R)
• M4: 1,655,749 km (0.082 R)
• M5: 1,802,206 km (0.042 R)
• M6: 3,135,123 km (0.076 R)
• M7: 4,032,111 km (0.104 R)
• M8: 4,230,029 km (0.098 R)
• M9: 5,476,628 km (0.106 R)
• M10: 6,011,890 km (0.068 R)
• M11: 6,855,622 km (0.063 R)
• M12: 8,081,875 km (0.101 R)
• M13: 11,214,604 km (0.088 R)
• M14: 12,210,029 km (0.096 R)
• M15: 20,103,261 km (0.115 R)
• M16: 20,680,110 km (0.04 R)
• M17: 21,466,397 km (0.073 R)
• M18: 30,328,276 km (0.053 R)
• M19: 32,772,555 km (0.063 R)
• M20: 45,815,844 km (0.056 R)
• M21: 51,839,552 km (0.066 R)
• M22: 56,831,333 km (0.077 R)
• M23: 58,953,678 km (0.099 R)
• M24: 60,529,842 km (0.104 R)
• M25: 69,922,494 km (0.102 R)
• M26: 73,482,773 km (0.098 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 192 - 14,353 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit