🌌 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: 824.6

Radius: 8.7

Gravity: 10.89 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.57 AU - 0.75 AU

Year: 364 Days

Day: 14.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,039,646 km

• M1: 108,309 km (0.066 R)
• M2: 395,387 km (0.085 R)
• M3: 765,941 km (0.108 R)
• M4: 1,103,434 km (0.09 R)
• M5: 1,553,873 km (0.112 R)
• M6: 2,081,056 km (0.111 R)
• M7: 2,536,731 km (0.041 R)
• M8: 3,057,631 km (0.118 R)
• M9: 3,455,262 km (0.093 R)
• M10: 4,069,660 km (0.064 R)
• M11: 4,410,145 km (0.115 R)
• M12: 5,117,743 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.1

Radius: 10.6

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.74 AU - 0.92 AU

Year: 513 Days

Day: 7.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,039,646 km

• M1: 133,142 km (0.106 R)
• M2: 582,534 km (0.091 R)
• M3: 993,479 km (0.116 R)
• M4: 1,354,758 km (0.077 R)
• M5: 2,004,013 km (0.099 R)
• M6: 2,476,892 km (0.106 R)
• M7: 3,390,935 km (0.111 R)
• M8: 3,737,104 km (0.05 R)
• M9: 4,301,238 km (0.087 R)
• M10: 4,648,455 km (0.102 R)
• M11: 4,998,962 km (0.1 R)
• M12: 5,549,483 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.4

Radius: 10.8

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.75 AU - 0.95 AU

Year: 532 Days

Day: 11.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 24,039,646 km

• M1: 134,339 km (0.053 R)
• M2: 524,191 km (0.105 R)
• M3: 889,808 km (0.086 R)
• M4: 1,256,473 km (0.11 R)
• M5: 1,703,471 km (0.062 R)
• M6: 2,443,681 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.1

Radius: 13.9

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.37 AU - 2.53 AU

Year: 2601 Days

Day: 11.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,039,646 km

• M1: 177,872 km (0.097 R)
• M2: 625,917 km (0.105 R)
• M3: 1,574,518 km (0.116 R)
• M4: 2,506,363 km (0.116 R)
• M5: 3,015,594 km (0.088 R)
• M6: 4,208,786 km (0.052 R)
• M7: 4,690,192 km (0.08 R)
• M8: 5,187,157 km (0.109 R)
• M9: 6,190,360 km (0.112 R)
• M10: 6,867,589 km (0.116 R)
• M11: 8,887,011 km (0.094 R)
• M12: 9,553,769 km (0.059 R)
• M13: 14,623,790 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.5

Radius: 8.5

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.32 AU - 3.3 AU

Year: 3195 Days

Day: 6.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,039,646 km

• M1: 106,065 km (0.106 R)
• M2: 420,370 km (0.117 R)
• M3: 829,371 km (0.09 R)
• M4: 1,351,018 km (0.09 R)
• M5: 1,716,935 km (0.111 R)
• M6: 2,307,547 km (0.115 R)
• M7: 2,609,136 km (0.068 R)
• M8: 2,966,975 km (0.104 R)
• M9: 3,308,806 km (0.112 R)
• M10: 3,924,999 km (0.087 R)
• M11: 4,862,978 km (0.058 R)
• M12: 5,228,745 km (0.112 R)
• M13: 6,437,645 km (0.047 R)
• M14: 6,826,151 km (0.086 R)
• M15: 7,536,890 km (0.064 R)
• M16: 9,169,601 km (0.054 R)
• M17: 10,276,177 km (0.058 R)
• M18: 11,772,156 km (0.06 R)
• M19: 12,119,073 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.6

Radius: 12.2

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.52 AU - 3.7 AU

Year: 4652 Days

Day: 13.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 24,039,646 km

• M1: 153,637 km (0.111 R)
• M2: 582,085 km (0.12 R)
• M3: 1,063,940 km (0.108 R)
• M4: 1,497,774 km (0.119 R)
• M5: 2,339,112 km (0.057 R)
• M6: 3,183,293 km (0.058 R)
• M7: 4,768,582 km (0.109 R)
• M8: 5,203,612 km (0.104 R)
• M9: 7,550,953 km (0.073 R)
• M10: 9,622,584 km (0.102 R)
• M11: 11,725,032 km (0.112 R)
• M12: 12,378,177 km (0.103 R)
• M13: 15,073,182 km (0.09 R)
• M14: 17,832,216 km (0.109 R)
• M15: 20,844,219 km (0.084 R)
• M16: 26,407,764 km (0.041 R)

Asteroid Belt

Center: 3.94 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.1

Radius: 14.8

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 3.5 AU - 5.02 AU

Year: 5964 Days

Day: 9.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 24,039,646 km

• M1: 184,454 km (0.073 R)
• M2: 1,506,451 km (0.062 R)
• M3: 2,030,193 km (0.117 R)
• M4: 2,641,300 km (0.083 R)
• M5: 3,311,648 km (0.068 R)
• M6: 4,094,045 km (0.097 R)
• M7: 4,860,435 km (0.103 R)
• M8: 6,220,130 km (0.112 R)
• M9: 6,885,392 km (0.092 R)
• M10: 8,086,812 km (0.104 R)
• M11: 10,258,076 km (0.044 R)
• M12: 13,165,361 km (0.078 R)
• M13: 14,895,161 km (0.059 R)
• M14: 15,604,105 km (0.118 R)
• M15: 18,464,716 km (0.113 R)
• M16: 19,842,063 km (0.099 R)
• M17: 20,628,350 km (0.093 R)
• M18: 23,584,404 km (0.092 R)
• M19: 24,466,881 km (0.117 R)
• M20: 25,039,841 km (0.095 R)
• M21: 25,873,849 km (0.098 R)
• M22: 26,985,661 km (0.116 R)
• M23: 30,512,730 km (0.109 R)
• M24: 31,081,351 km (0.028 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.5

Radius: 11.9

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 4.75 AU - 6.33 AU

Year: 8844 Days

Day: 12.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,039,646 km

• M1: 148,102 km (0.108 R)
• M2: 1,319,453 km (0.097 R)
• M3: 1,960,630 km (0.035 R)
• M4: 2,987,918 km (0.057 R)
• M5: 4,520,548 km (0.082 R)
• M6: 4,913,841 km (0.119 R)
• M7: 6,233,743 km (0.116 R)
• M8: 9,905,922 km (0.119 R)
• M9: 10,347,386 km (0.111 R)
• M10: 13,599,045 km (0.078 R)
• M11: 14,592,375 km (0.108 R)
• M12: 16,415,524 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 87.4

Radius: 4

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.57 AU - 6.41 AU

Year: 9943 Days

Day: 18.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 24,039,646 km

• M1: 49,966 km (0.06 R)
• M2: 211,681 km (0.115 R)
• M3: 394,041 km (0.066 R)
• M4: 570,716 km (0.076 R)
• M5: 743,950 km (0.107 R)
• M6: 1,517,072 km (0.103 R)
• M7: 1,715,289 km (0.07 R)
• M8: 2,769,655 km (0.106 R)
• M9: 4,492,574 km (0.112 R)
• M10: 4,926,856 km (0.046 R)
• M11: 5,103,083 km (0.077 R)
• M12: 6,698,993 km (0.072 R)
• M13: 7,592,990 km (0.062 R)
• M14: 8,455,870 km (0.12 R)
• M15: 8,599,783 km (0.101 R)
• M16: 11,001,876 km (0.06 R)
• M17: 12,286,623 km (0.04 R)
• M18: 15,847,202 km (0.11 R)
• M19: 18,367,327 km (0.096 R)
• M20: 21,010,273 km (0.095 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: 233 - 11,699 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit