🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.57 AU - 0.77 AU

Year: 360 Days

Day: 40.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.7

Radius: 12.4

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.58 AU - 0.9 AU

Year: 418 Days

Day: 12.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,240,551 km

• M1: 154,235 km (0.113 R)
• M2: 678,127 km (0.06 R)
• M3: 1,108,969 km (0.053 R)
• M4: 1,536,520 km (0.069 R)
• M5: 2,059,963 km (0.094 R)
• M6: 2,542,715 km (0.097 R)
• M7: 2,997,343 km (0.043 R)
• M8: 3,529,163 km (0.119 R)
• M9: 4,213,723 km (0.11 R)
• M10: 4,912,644 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340

Radius: 14.7

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.05 AU - 1.67 AU

Year: 1040 Days

Day: 13.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,240,551 km

• M1: 182,958 km (0.085 R)
• M2: 931,247 km (0.116 R)
• M3: 1,727,855 km (0.105 R)
• M4: 2,469,562 km (0.096 R)
• M5: 3,036,089 km (0.099 R)
• M6: 3,917,519 km (0.092 R)
• M7: 5,067,777 km (0.033 R)
• M8: 5,609,471 km (0.11 R)
• M9: 7,403,449 km (0.118 R)
• M10: 8,370,749 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.2

Radius: 9.6

Gravity: 8.36 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.37 AU - 1.95 AU

Year: 1403 Days

Day: 5.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,240,551 km

• M1: 124,017 km (0.08 R)
• M2: 585,825 km (0.107 R)
• M3: 1,224,907 km (0.026 R)
• M4: 2,266,857 km (0.077 R)
• M5: 2,943,338 km (0.113 R)
• M6: 3,502,535 km (0.1 R)
• M7: 4,077,589 km (0.063 R)
• M8: 4,425,554 km (0.1 R)
• M9: 4,773,518 km (0.032 R)
• M10: 5,077,352 km (0.079 R)
• M11: 5,701,773 km (0.051 R)
• M12: 7,340,169 km (0.055 R)
• M13: 7,940,954 km (0.097 R)
• M14: 8,544,582 km (0.056 R)
• M15: 9,240,361 km (0.096 R)
• M16: 9,843,390 km (0.116 R)
• M17: 12,673,782 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.7

Radius: 9.4

Gravity: 9.14 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.46 AU - 4.72 AU

Year: 5426 Days

Day: 14.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,240,551 km

• M1: 117,285 km (0.096 R)
• M2: 455,226 km (0.079 R)
• M3: 799,900 km (0.089 R)
• M4: 1,378,993 km (0.111 R)
• M5: 2,314,129 km (0.092 R)
• M6: 2,804,810 km (0.063 R)
• M7: 3,321,073 km (0.081 R)
• M8: 4,622,873 km (0.085 R)
• M9: 5,257,767 km (0.115 R)
• M10: 6,204,123 km (0.065 R)
• M11: 6,566,000 km (0.063 R)
• M12: 8,156,824 km (0.083 R)
• M13: 9,421,823 km (0.049 R)
• M14: 11,145,490 km (0.075 R)
• M15: 13,942,821 km (0.105 R)
• M16: 18,899,447 km (0.07 R)
• M17: 19,521,625 km (0.111 R)
• M18: 22,223,960 km (0.117 R)
• M19: 22,839,406 km (0.113 R)
• M20: 23,624,645 km (0.087 R)
• M21: 24,509,218 km (0.059 R)
• M22: 25,499,107 km (0.071 R)
• M23: 27,295,179 km (0.095 R)
• M24: 28,268,911 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.3

Radius: 14.8

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4 AU - 5.38 AU

Year: 6663 Days

Day: 7.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,240,551 km

• M1: 184,155 km (0.042 R)
• M2: 692,040 km (0.056 R)
• M3: 1,470,547 km (0.081 R)
• M4: 2,081,056 km (0.098 R)
• M5: 2,874,972 km (0.106 R)
• M6: 3,397,218 km (0.086 R)
• M7: 3,923,503 km (0.103 R)
• M8: 6,771,697 km (0.063 R)
• M9: 7,580,573 km (0.089 R)
• M10: 11,353,132 km (0.08 R)
• M11: 12,496,060 km (0.063 R)
• M12: 12,983,150 km (0.116 R)
• M13: 14,328,634 km (0.081 R)
• M14: 15,816,235 km (0.081 R)
• M15: 18,578,560 km (0.103 R)
• M16: 20,406,945 km (0.081 R)

Asteroid Belt

Center: 5.78 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 213.1

Radius: 5.4

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 5.21 AU - 8.51 AU

Year: 11787 Days

Day: 19 Hours

Environment

Temp: -213 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 36,240,551 km

• M1: 67,169 km (0.116 R)
• M2: 257,757 km (0.065 R)
• M3: 512,971 km (0.039 R)
• M4: 688,449 km (0.076 R)
• M5: 1,005,298 km (0.057 R)
• M6: 1,219,522 km (0.099 R)
• M7: 1,414,897 km (0.072 R)
• M8: 1,840,652 km (0.119 R)
• M9: 2,364,993 km (0.119 R)
• M10: 3,065,260 km (0.104 R)
• M11: 3,276,343 km (0.052 R)
• M12: 4,375,289 km (0.086 R)
• M13: 4,837,397 km (0.112 R)
• M14: 5,331,519 km (0.089 R)
• M15: 5,763,108 km (0.087 R)
• M16: 5,955,192 km (0.099 R)
• M17: 6,872,526 km (0.065 R)
• M18: 7,383,702 km (0.103 R)
• M19: 7,919,711 km (0.115 R)
• M20: 8,898,530 km (0.119 R)
• M21: 10,419,641 km (0.093 R)
• M22: 15,635,072 km (0.077 R)
• M23: 16,389,195 km (0.118 R)
• M24: 17,432,191 km (0.104 R)
• M25: 18,105,980 km (0.118 R)
• M26: 18,587,984 km (0.073 R)
• M27: 23,805,360 km (0.057 R)
• M28: 26,879,446 km (0.083 R)
• M29: 31,179,338 km (0.059 R)
• M30: 35,915,906 km (0.104 R)
• M31: 36,240,533 km (0.055 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 13,025 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit