🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.6 AU - 0.66 AU

Year: 328 Days

Day: 19.5 Hours

Environment

Temp: -122 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,737,772 km

• M1: 51,312 km (0.054 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.8

Radius: 11.9

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.93 AU - 1.09 AU

Year: 666 Days

Day: 10.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,737,772 km

• M1: 147,952 km (0.03 R)
• M2: 555,756 km (0.098 R)
• M3: 1,117,197 km (0.093 R)
• M4: 1,765,853 km (0.096 R)
• M5: 2,309,791 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.1

Radius: 13.9

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.95 AU - 1.39 AU

Year: 830 Days

Day: 11.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,737,772 km

• M1: 172,935 km (0.105 R)
• M2: 665,112 km (0.078 R)
• M3: 1,401,582 km (0.115 R)
• M4: 2,116,062 km (0.12 R)
• M5: 2,781,623 km (0.108 R)
• M6: 3,333,789 km (0.068 R)
• M7: 4,253,815 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.7

Radius: 9.1

Gravity: 11.72 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.34 AU - 2.06 AU

Year: 1454 Days

Day: 6.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,737,772 km

• M1: 113,694 km (0.098 R)
• M2: 410,497 km (0.082 R)
• M3: 813,962 km (0.065 R)
• M4: 1,153,998 km (0.11 R)
• M5: 1,486,554 km (0.049 R)
• M6: 1,777,971 km (0.081 R)
• M7: 2,350,332 km (0.06 R)
• M8: 3,070,945 km (0.081 R)
• M9: 3,533,053 km (0.117 R)
• M10: 3,986,185 km (0.056 R)
• M11: 4,418,972 km (0.09 R)
• M12: 5,356,501 km (0.12 R)
• M13: 6,396,057 km (0.073 R)
• M14: 6,727,566 km (0.103 R)
• M15: 7,452,966 km (0.093 R)
• M16: 8,348,908 km (0.119 R)
• M17: 8,652,890 km (0.119 R)
• M18: 9,186,356 km (0.115 R)
• M19: 11,997,001 km (0.09 R)
• M20: 13,102,978 km (0.048 R)
• M21: 13,555,661 km (0.055 R)
• M22: 14,103,938 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.4

Radius: 9.2

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 4.8 AU - 6.5 AU

Year: 8810 Days

Day: 9.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 51,737,772 km

• M1: 115,490 km (0.117 R)
• M2: 428,598 km (0.081 R)
• M3: 948,301 km (0.051 R)
• M4: 1,595,910 km (0.036 R)
• M5: 1,900,043 km (0.088 R)
• M6: 2,191,609 km (0.076 R)
• M7: 2,666,432 km (0.111 R)
• M8: 3,506,574 km (0.076 R)
• M9: 4,541,343 km (0.104 R)
• M10: 4,947,950 km (0.054 R)
• M11: 5,253,129 km (0.051 R)
• M12: 5,570,875 km (0.047 R)
• M13: 6,712,008 km (0.116 R)
• M14: 8,168,941 km (0.12 R)
• M15: 11,483,282 km (0.109 R)
• M16: 12,129,695 km (0.114 R)
• M17: 12,800,192 km (0.101 R)
• M18: 13,495,074 km (0.069 R)
• M19: 14,214,939 km (0.115 R)
• M20: 16,461,151 km (0.116 R)
• M21: 18,712,898 km (0.073 R)
• M22: 19,008,055 km (0.106 R)
• M23: 22,965,667 km (0.114 R)
• M24: 24,515,351 km (0.103 R)
• M25: 25,859,039 km (0.058 R)
• M26: 27,535,582 km (0.108 R)
• M27: 28,692,722 km (0.102 R)
• M28: 29,881,875 km (0.098 R)
• M29: 31,622,447 km (0.07 R)
• M30: 32,464,533 km (0.025 R)
• M31: 35,529,644 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 866.9

Radius: 3.7

Gravity: 63.32 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 5.36 AU - 8 AU

Year: 11326 Days

Day: 16.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 51,737,772 km

• M1: 46,076 km (0.073 R)
• M2: 235,916 km (0.065 R)
• M3: 396,734 km (0.119 R)
• M4: 530,923 km (0.073 R)
• M5: 894,296 km (0.112 R)
• M6: 1,105,379 km (0.117 R)
• M7: 1,349,074 km (0.086 R)
• M8: 1,611,917 km (0.106 R)
• M9: 1,839,156 km (0.065 R)
• M10: 3,159,058 km (0.09 R)
• M11: 3,410,682 km (0.084 R)
• M12: 7,468,973 km (0.065 R)
• M13: 8,811,315 km (0.102 R)
• M14: 9,157,933 km (0.112 R)
• M15: 10,090,975 km (0.083 R)
• M16: 11,028,654 km (0.105 R)
• M17: 13,722,463 km (0.089 R)
• M18: 16,524,730 km (0.111 R)
• M19: 18,138,293 km (0.119 R)
• M20: 18,698,537 km (0.03 R)
• M21: 19,853,732 km (0.09 R)
• M22: 20,022,628 km (0.117 R)
• M23: 20,363,113 km (0.096 R)
• M24: 23,320,962 km (0.085 R)
• M25: 26,450,848 km (0.083 R)
• M26: 28,650,236 km (0.078 R)
• M27: 35,973,800 km (0.068 R)
• M28: 36,476,898 km (0.077 R)
• M29: 36,984,633 km (0.114 R)
• M30: 38,667,310 km (0.118 R)
• M31: 39,460,777 km (0.093 R)
• M32: 39,727,809 km (0.097 R)
• M33: 42,323,781 km (0.088 R)
• M34: 47,097,449 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 523.1

Radius: 3.1

Gravity: 54.43 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 5.76 AU - 8.76 AU

Year: 12833 Days

Day: 20.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 51,737,772 km

• M1: 38,746 km (0.056 R)
• M2: 162,912 km (0.103 R)
• M3: 270,772 km (0.119 R)
• M4: 433,834 km (0.116 R)
• M5: 611,855 km (0.081 R)
• M6: 726,746 km (0.074 R)
• M7: 1,365,829 km (0.062 R)
• M8: 3,081,716 km (0.05 R)
• M9: 4,035,403 km (0.115 R)
• M10: 4,235,565 km (0.069 R)
• M11: 5,038,007 km (0.118 R)
• M12: 6,009,945 km (0.064 R)
• M13: 9,969,950 km (0.091 R)
• M14: 11,601,016 km (0.058 R)
• M15: 12,721,055 km (0.044 R)
• M16: 14,433,951 km (0.055 R)
• M17: 15,242,228 km (0.092 R)
• M18: 17,619,787 km (0.061 R)
• M19: 21,762,002 km (0.109 R)
• M20: 25,047,321 km (0.117 R)
• M21: 25,335,147 km (0.096 R)
• M22: 27,513,592 km (0.101 R)
• M23: 31,900,549 km (0.082 R)
• M24: 36,239,785 km (0.119 R)
• M25: 36,362,156 km (0.041 R)
• M26: 39,126,126 km (0.073 R)
• M27: 46,931,844 km (0.034 R)
• M28: 47,956,440 km (0.094 R)
• M29: 49,145,743 km (0.077 R)
• M30: 51,582,842 km (0.099 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: 491 - 11,883 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit