🌌 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 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967.6

Radius: 14.2

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.65 AU - 0.67 AU

Year: 370 Days

Day: 11.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,764,261 km

• M1: 176,675 km (0.108 R)
• M2: 663,616 km (0.099 R)
• M3: 1,120,039 km (0.027 R)
• M4: 1,775,727 km (0.07 R)
• M5: 2,313,082 km (0.078 R)
• M6: 3,122,108 km (0.106 R)
• M7: 3,876,230 km (0.117 R)
• M8: 4,430,341 km (0.029 R)
• M9: 5,766,699 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.7

Radius: 14.3

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.64 AU - 0.72 AU

Year: 387 Days

Day: 7.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,764,261 km

• M1: 177,872 km (0.111 R)
• M2: 625,768 km (0.1 R)
• M3: 1,234,781 km (0.115 R)
• M4: 1,811,780 km (0.114 R)
• M5: 2,439,642 km (0.057 R)
• M6: 2,895,467 km (0.042 R)
• M7: 3,560,280 km (0.093 R)
• M8: 4,325,622 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.3

Radius: 8.7

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.25 AU - 1.29 AU

Year: 988 Days

Day: 8.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,764,261 km

• M1: 108,309 km (0.081 R)
• M2: 431,889 km (0.097 R)
• M3: 752,328 km (0.096 R)
• M4: 1,084,285 km (0.112 R)
• M5: 1,507,049 km (0.098 R)
• M6: 1,956,890 km (0.074 R)
• M7: 2,301,563 km (0.101 R)
• M8: 2,610,632 km (0.092 R)
• M9: 4,076,991 km (0.081 R)
• M10: 4,407,602 km (0.079 R)
• M11: 4,723,553 km (0.116 R)
• M12: 5,139,884 km (0.108 R)
• M13: 5,819,507 km (0.1 R)
• M14: 6,679,695 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.5

Radius: 12.6

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.48 AU - 4.12 AU

Year: 4138 Days

Day: 6 Hours

Environment

Temp: -223 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 59,764,261 km

• M1: 158,424 km (0.117 R)
• M2: 722,558 km (0.081 R)
• M3: 1,494,184 km (0.106 R)
• M4: 1,962,574 km (0.05 R)
• M5: 2,960,093 km (0.096 R)
• M6: 4,017,152 km (0.063 R)
• M7: 4,437,222 km (0.065 R)
• M8: 5,366,225 km (0.078 R)
• M9: 5,877,401 km (0.08 R)
• M10: 6,834,080 km (0.111 R)
• M11: 7,367,246 km (0.064 R)
• M12: 8,000,045 km (0.116 R)
• M13: 8,592,602 km (0.043 R)
• M14: 11,215,951 km (0.102 R)
• M15: 12,150,040 km (0.1 R)
• M16: 12,636,083 km (0.114 R)
• M17: 13,595,754 km (0.099 R)
• M18: 14,119,945 km (0.103 R)
• M19: 15,097,567 km (0.119 R)
• M20: 15,888,640 km (0.043 R)
• M21: 17,370,108 km (0.091 R)
• M22: 17,800,950 km (0.063 R)
• M23: 20,401,260 km (0.111 R)
• M24: 21,863,430 km (0.111 R)
• M25: 24,300,379 km (0.062 R)
• M26: 27,657,355 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.2

Radius: 11.6

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.44 AU - 4.4 AU

Year: 5357 Days

Day: 9.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,764,261 km

• M1: 144,212 km (0.116 R)
• M2: 3,004,972 km (0.053 R)
• M3: 4,701,412 km (0.084 R)
• M4: 5,908,368 km (0.097 R)
• M5: 6,765,115 km (0.089 R)
• M6: 9,478,371 km (0.052 R)
• M7: 13,777,216 km (0.102 R)
• M8: 17,735,875 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84

Radius: 6.3

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.77 AU - 6.89 AU

Year: 9717 Days

Day: 17 Hours

Environment

Temp: -234 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 59,764,261 km

• M1: 78,389 km (0.073 R)
• M2: 326,273 km (0.097 R)
• M3: 785,538 km (0.097 R)
• M4: 2,389,228 km (0.085 R)
• M5: 2,784,166 km (0.111 R)
• M6: 3,623,859 km (0.063 R)
• M7: 4,145,357 km (0.086 R)
• M8: 5,032,472 km (0.108 R)
• M9: 6,741,927 km (0.093 R)
• M10: 7,496,798 km (0.119 R)
• M11: 9,590,121 km (0.109 R)
• M12: 15,410,525 km (0.086 R)
• M13: 18,090,871 km (0.108 R)
• M14: 19,540,923 km (0.101 R)
• M15: 21,001,596 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71

Radius: 6.3

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 5.6 AU - 6.34 AU

Year: 10069 Days

Day: 15.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,764,261 km

• M1: 78,389 km (0.092 R)
• M2: 1,103,883 km (0.114 R)
• M3: 2,146,131 km (0.109 R)
• M4: 3,157,113 km (0.078 R)
• M5: 3,931,731 km (0.114 R)
• M6: 5,372,808 km (0.081 R)
• M7: 5,932,004 km (0.107 R)
• M8: 9,398,785 km (0.039 R)
• M9: 9,973,092 km (0.119 R)
• M10: 11,361,360 km (0.096 R)
• M11: 12,013,008 km (0.074 R)
• M12: 13,485,949 km (0.094 R)
• M13: 14,166,769 km (0.074 R)
• M14: 15,491,458 km (0.058 R)
• M15: 17,120,280 km (0.04 R)
• M16: 17,630,408 km (0.118 R)
• M17: 18,034,023 km (0.072 R)
• M18: 18,503,013 km (0.072 R)
• M19: 18,979,931 km (0.088 R)
• M20: 21,554,211 km (0.083 R)
• M21: 22,618,899 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.3

Radius: 3.5

Gravity: 74.96 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 6.45 AU - 6.99 AU

Year: 12024 Days

Day: 24 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 59,764,261 km

• M1: 43,683 km (0.085 R)
• M2: 187,147 km (0.113 R)
• M3: 397,631 km (0.093 R)
• M4: 770,130 km (0.081 R)
• M5: 921,822 km (0.097 R)
• M6: 1,129,913 km (0.081 R)
• M7: 1,382,883 km (0.119 R)
• M8: 1,672,205 km (0.116 R)
• M9: 2,170,216 km (0.066 R)
• M10: 2,288,698 km (0.111 R)
• M11: 2,995,548 km (0.092 R)
• M12: 3,837,036 km (0.11 R)
• M13: 4,220,006 km (0.106 R)
• M14: 5,061,794 km (0.064 R)
• M15: 7,553,496 km (0.056 R)
• M16: 7,965,488 km (0.036 R)
• M17: 10,531,391 km (0.091 R)
• M18: 10,757,732 km (0.109 R)
• M19: 15,119,258 km (0.082 R)
• M20: 15,625,647 km (0.027 R)
• M21: 15,920,205 km (0.108 R)
• M22: 16,825,721 km (0.03 R)
• M23: 16,979,957 km (0.088 R)
• M24: 17,369,510 km (0.106 R)
• M25: 17,765,046 km (0.084 R)
• M26: 18,987,859 km (0.113 R)
• M27: 19,154,960 km (0.114 R)
• M28: 20,005,574 km (0.085 R)
• M29: 30,050,771 km (0.086 R)
• M30: 31,430,213 km (0.084 R)
• M31: 31,899,203 km (0.107 R)
• M32: 33,699,763 km (0.082 R)
• M33: 38,029,275 km (0.062 R)
• M34: 44,751,305 km (0.105 R)
• M35: 50,442,308 km (0.099 R)
• M36: 50,763,045 km (0.105 R)
• M37: 50,923,863 km (0.115 R)
• M38: 52,222,821 km (0.086 R)
• M39: 53,045,909 km (0.088 R)
• M40: 54,886,860 km (0.101 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 286 - 13,599 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit