🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.5 AU - 0.54 AU

Year: 246 Days

Day: 35.7 Hours

Environment

Temp: -109 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942

Radius: 13.1

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.74 AU - 0.9 AU

Year: 487 Days

Day: 10 Hours

Environment

Temp: -157 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,483,311 km

• M1: 162,912 km (0.069 R)
• M2: 648,656 km (0.091 R)
• M3: 1,214,735 km (0.098 R)
• M4: 1,763,011 km (0.05 R)
• M5: 2,289,895 km (0.12 R)
• M6: 2,876,318 km (0.068 R)
• M7: 3,692,973 km (0.1 R)
• M8: 4,848,617 km (0.12 R)
• M9: 5,432,198 km (0.073 R)
• M10: 6,081,153 km (0.096 R)
• M11: 6,561,961 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598

Radius: 9.6

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.93 AU - 1.99 AU

Year: 1800 Days

Day: 14.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,483,311 km

• M1: 119,379 km (0.117 R)
• M2: 437,424 km (0.104 R)
• M3: 841,338 km (0.099 R)
• M4: 1,336,507 km (0.102 R)
• M5: 1,721,423 km (0.085 R)
• M6: 2,029,594 km (0.062 R)
• M7: 2,902,049 km (0.101 R)
• M8: 3,472,466 km (0.109 R)
• M9: 3,916,622 km (0.098 R)
• M10: 4,961,264 km (0.103 R)
• M11: 5,989,300 km (0.115 R)
• M12: 6,888,384 km (0.12 R)
• M13: 7,732,415 km (0.083 R)
• M14: 8,402,015 km (0.109 R)
• M15: 8,797,402 km (0.077 R)
• M16: 9,724,161 km (0.055 R)
• M17: 10,160,089 km (0.102 R)
• M18: 11,179,898 km (0.111 R)
• M19: 12,189,235 km (0.098 R)
• M20: 13,628,216 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.1

Radius: 9

Gravity: 9.9 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.34 AU - 3.12 AU

Year: 2959 Days

Day: 5.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,483,311 km

• M1: 129,253 km (0.06 R)
• M2: 420,520 km (0.088 R)
• M3: 857,196 km (0.074 R)
• M4: 1,385,725 km (0.08 R)
• M5: 1,695,841 km (0.095 R)
• M6: 2,105,590 km (0.1 R)
• M7: 2,399,999 km (0.08 R)
• M8: 2,852,383 km (0.12 R)
• M9: 3,143,201 km (0.118 R)
• M10: 3,825,816 km (0.102 R)
• M11: 4,311,560 km (0.102 R)
• M12: 5,773,730 km (0.076 R)
• M13: 6,157,748 km (0.12 R)
• M14: 7,161,848 km (0.12 R)
• M15: 8,939,221 km (0.045 R)
• M16: 9,491,686 km (0.089 R)
• M17: 9,872,412 km (0.113 R)
• M18: 11,370,485 km (0.065 R)
• M19: 11,843,663 km (0.032 R)
• M20: 12,737,810 km (0.109 R)
• M21: 13,628,067 km (0.108 R)
• M22: 14,113,063 km (0.113 R)
• M23: 14,659,843 km (0.113 R)
• M24: 14,963,976 km (0.037 R)
• M25: 17,100,383 km (0.085 R)
• M26: 18,950,011 km (0.113 R)
• M27: 19,861,511 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.2

Radius: 8.7

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.56 AU - 3.74 AU

Year: 3668 Days

Day: 12.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,483,311 km

• M1: 108,159 km (0.061 R)
• M2: 402,418 km (0.106 R)
• M3: 723,306 km (0.112 R)
• M4: 1,435,840 km (0.085 R)
• M5: 2,664,338 km (0.116 R)
• M6: 2,942,889 km (0.098 R)
• M7: 3,634,779 km (0.118 R)
• M8: 4,092,848 km (0.043 R)
• M9: 4,413,436 km (0.067 R)
• M10: 4,769,031 km (0.05 R)
• M11: 5,397,790 km (0.119 R)
• M12: 5,680,680 km (0.097 R)
• M13: 6,059,163 km (0.114 R)
• M14: 8,104,465 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.1

Radius: 13.1

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 2.51 AU - 4.17 AU

Year: 4004 Days

Day: 14.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,483,311 km

• M1: 163,361 km (0.072 R)
• M2: 1,288,935 km (0.098 R)
• M3: 2,103,795 km (0.114 R)
• M4: 2,806,606 km (0.107 R)
• M5: 7,024,817 km (0.101 R)
• M6: 7,861,667 km (0.078 R)
• M7: 9,520,408 km (0.117 R)
• M8: 14,250,095 km (0.05 R)
• M9: 14,719,682 km (0.059 R)
• M10: 18,082,643 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.2

Radius: 9.8

Gravity: 10 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.35 AU - 5.09 AU

Year: 5687 Days

Day: 8.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,483,311 km

• M1: 122,521 km (0.116 R)
• M2: 486,642 km (0.095 R)
• M3: 971,489 km (0.081 R)
• M4: 2,119,802 km (0.096 R)
• M5: 2,435,603 km (0.059 R)
• M6: 3,269,461 km (0.083 R)
• M7: 4,600,135 km (0.064 R)
• M8: 5,524,051 km (0.044 R)
• M9: 6,498,232 km (0.032 R)
• M10: 7,135,370 km (0.112 R)
• M11: 7,852,542 km (0.088 R)
• M12: 11,358,817 km (0.106 R)
• M13: 12,073,745 km (0.092 R)
• M14: 13,201,862 km (0.069 R)
• M15: 14,933,458 km (0.043 R)
• M16: 16,746,584 km (0.118 R)
• M17: 18,285,348 km (0.101 R)
• M18: 21,030,917 km (0.083 R)
• M19: 26,169,305 km (0.103 R)
• M20: 26,965,615 km (0.105 R)
• M21: 27,869,485 km (0.059 R)
• M22: 29,451,931 km (0.099 R)
• M23: 32,288,456 km (0.117 R)
• M24: 33,101,970 km (0.099 R)
• M25: 33,513,813 km (0.058 R)
• M26: 36,492,905 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.6

Radius: 9.2

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 5.67 AU - 5.81 AU

Year: 9021 Days

Day: 9.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,483,311 km

• M1: 114,592 km (0.103 R)
• M2: 408,103 km (0.05 R)
• M3: 850,314 km (0.1 R)
• M4: 2,092,276 km (0.106 R)
• M5: 3,124,501 km (0.064 R)
• M6: 4,951,540 km (0.085 R)
• M7: 5,388,665 km (0.067 R)
• M8: 5,703,868 km (0.095 R)
• M9: 6,061,706 km (0.059 R)
• M10: 9,407,462 km (0.071 R)
• M11: 10,295,325 km (0.097 R)
• M12: 10,782,117 km (0.09 R)
• M13: 14,741,524 km (0.04 R)
• M14: 16,469,828 km (0.091 R)
• M15: 17,883,229 km (0.066 R)
• M16: 18,716,938 km (0.085 R)
• M17: 22,459,727 km (0.076 R)
• M18: 22,829,682 km (0.086 R)
• M19: 24,118,019 km (0.054 R)
• M20: 27,339,460 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 804.5

Radius: 6

Gravity: 22.35 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 6.74 AU - 10.64 AU

Year: 16805 Days

Day: 17.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 71,483,311 km

• M1: 87,216 km (0.058 R)
• M2: 301,440 km (0.095 R)
• M3: 604,076 km (0.103 R)
• M4: 866,471 km (0.119 R)
• M5: 1,231,041 km (0.049 R)
• M6: 1,798,316 km (0.095 R)
• M7: 2,061,010 km (0.098 R)
• M8: 2,480,931 km (0.091 R)
• M9: 3,188,978 km (0.096 R)
• M10: 5,595,110 km (0.094 R)
• M11: 6,668,923 km (0.103 R)
• M12: 7,162,148 km (0.071 R)
• M13: 7,776,097 km (0.093 R)
• M14: 8,894,042 km (0.082 R)
• M15: 10,173,254 km (0.059 R)
• M16: 10,585,845 km (0.116 R)
• M17: 10,948,320 km (0.069 R)
• M18: 11,381,556 km (0.103 R)
• M19: 13,160,274 km (0.116 R)
• M20: 13,368,664 km (0.106 R)
• M21: 14,665,977 km (0.104 R)
• M22: 15,345,151 km (0.094 R)
• M23: 17,341,535 km (0.073 R)
• M24: 18,619,101 km (0.08 R)
• M25: 19,594,927 km (0.085 R)
• M26: 21,744,649 km (0.067 R)
• M27: 23,026,703 km (0.108 R)
• M28: 24,778,344 km (0.11 R)
• M29: 25,203,052 km (0.039 R)
• M30: 26,838,905 km (0.073 R)
• M31: 27,626,089 km (0.105 R)
• M32: 29,128,650 km (0.09 R)
• M33: 37,603,968 km (0.105 R)
• M34: 47,097,449 km (0.083 R)
• M35: 49,236,998 km (0.083 R)
• M36: 54,241,645 km (0.099 R)
• M37: 55,679,729 km (0.077 R)
• M38: 57,698,253 km (0.096 R)
• M39: 59,007,833 km (0.098 R)
• M40: 59,574,958 km (0.055 R)
• M41: 60,337,010 km (0.047 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: 325 - 19,604 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit