🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.3

Radius: 8.5

Gravity: 11.71 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.51 AU - 0.55 AU

Year: 266 Days

Day: 5.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 61,814,649 km

• M1: 105,766 km (0.111 R)
• M2: 379,829 km (0.039 R)
• M3: 735,872 km (0.116 R)
• M4: 1,073,664 km (0.116 R)
• M5: 1,353,562 km (0.091 R)
• M6: 1,709,604 km (0.119 R)
• M7: 2,112,023 km (0.111 R)
• M8: 2,408,675 km (0.025 R)
• M9: 2,828,746 km (0.071 R)
• M10: 3,254,202 km (0.12 R)
• M11: 3,887,450 km (0.097 R)
• M12: 4,195,622 km (0.113 R)
• M13: 4,467,142 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.3

Radius: 12.7

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.52 AU - 0.72 AU

Year: 337 Days

Day: 9.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,814,649 km

• M1: 157,975 km (0.12 R)
• M2: 587,620 km (0.107 R)
• M3: 1,155,644 km (0.069 R)
• M4: 1,580,651 km (0.111 R)
• M5: 2,016,878 km (0.116 R)
• M6: 2,628,584 km (0.064 R)
• M7: 3,119,564 km (0.057 R)
• M8: 3,931,133 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.3

Radius: 11.5

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.62 AU - 0.88 AU

Year: 448 Days

Day: 5.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,814,649 km

• M1: 143,016 km (0.026 R)
• M2: 662,719 km (0.03 R)
• M3: 1,068,578 km (0.11 R)
• M4: 1,593,367 km (0.071 R)
• M5: 1,967,362 km (0.064 R)
• M6: 2,478,986 km (0.04 R)
• M7: 3,615,332 km (0.114 R)
• M8: 4,674,784 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.4

Radius: 13.6

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.31 AU - 2.33 AU

Year: 2439 Days

Day: 13.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,814,649 km

• M1: 169,195 km (0.118 R)
• M2: 602,730 km (0.113 R)
• M3: 1,274,125 km (0.076 R)
• M4: 1,829,582 km (0.102 R)
• M5: 2,274,935 km (0.078 R)
• M6: 2,733,602 km (0.034 R)
• M7: 4,052,756 km (0.102 R)
• M8: 5,911,809 km (0.112 R)
• M9: 6,542,513 km (0.057 R)
• M10: 8,190,184 km (0.11 R)
• M11: 8,708,242 km (0.098 R)
• M12: 10,658,250 km (0.037 R)
• M13: 11,796,540 km (0.077 R)
• M14: 12,670,341 km (0.099 R)
• M15: 13,320,643 km (0.088 R)
• M16: 15,996,800 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.3

Radius: 10.3

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.44 AU - 2.84 AU

Year: 2961 Days

Day: 5.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,814,649 km

• M1: 128,056 km (0.049 R)
• M2: 597,344 km (0.113 R)
• M3: 1,009,486 km (0.084 R)
• M4: 1,364,781 km (0.117 R)
• M5: 1,792,930 km (0.094 R)
• M6: 2,454,153 km (0.097 R)
• M7: 2,924,190 km (0.08 R)
• M8: 3,882,065 km (0.048 R)
• M9: 4,893,047 km (0.054 R)
• M10: 5,511,784 km (0.034 R)
• M11: 5,907,470 km (0.081 R)
• M12: 6,407,277 km (0.102 R)
• M13: 7,334,335 km (0.113 R)
• M14: 8,011,415 km (0.106 R)
• M15: 10,099,203 km (0.03 R)
• M16: 14,068,633 km (0.063 R)
• M17: 17,302,340 km (0.076 R)
• M18: 19,512,050 km (0.095 R)
• M19: 20,000,188 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.3

Radius: 13.8

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.75 AU - 4.17 AU

Year: 5439 Days

Day: 13 Hours

Environment

Temp: -217 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,814,649 km

• M1: 171,589 km (0.111 R)
• M2: 628,909 km (0.096 R)
• M3: 1,075,609 km (0.097 R)
• M4: 1,552,228 km (0.06 R)
• M5: 2,172,460 km (0.104 R)
• M6: 2,703,832 km (0.109 R)
• M7: 5,219,919 km (0.067 R)
• M8: 6,957,647 km (0.098 R)
• M9: 7,438,156 km (0.105 R)
• M10: 8,504,489 km (0.046 R)
• M11: 9,338,497 km (0.081 R)
• M12: 11,402,798 km (0.068 R)
• M13: 12,170,535 km (0.042 R)
• M14: 14,737,634 km (0.056 R)
• M15: 15,417,557 km (0.075 R)
• M16: 16,356,732 km (0.075 R)
• M17: 23,722,183 km (0.049 R)
• M18: 28,036,287 km (0.111 R)
• M19: 28,817,487 km (0.095 R)
• M20: 30,514,375 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.6

Radius: 8.1

Gravity: 13.56 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.83 AU - 4.99 AU

Year: 6392 Days

Day: 6.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 61,814,649 km

• M1: 100,679 km (0.1 R)
• M2: 474,824 km (0.084 R)
• M3: 1,299,108 km (0.077 R)
• M4: 1,676,394 km (0.107 R)
• M5: 2,258,329 km (0.07 R)
• M6: 2,578,020 km (0.11 R)
• M7: 3,375,526 km (0.097 R)
• M8: 4,939,123 km (0.12 R)
• M9: 7,081,963 km (0.055 R)
• M10: 7,969,677 km (0.025 R)
• M11: 8,254,063 km (0.083 R)
• M12: 9,016,712 km (0.103 R)
• M13: 10,295,026 km (0.106 R)
• M14: 11,027,607 km (0.1 R)
• M15: 12,004,780 km (0.111 R)
• M16: 15,344,702 km (0.11 R)
• M17: 15,913,174 km (0.109 R)
• M18: 17,565,782 km (0.069 R)
• M19: 17,909,707 km (0.109 R)
• M20: 18,539,814 km (0.105 R)
• M21: 18,824,498 km (0.118 R)
• M22: 20,747,280 km (0.078 R)
• M23: 21,208,939 km (0.117 R)
• M24: 28,790,709 km (0.07 R)
• M25: 33,496,908 km (0.117 R)
• M26: 34,667,960 km (0.099 R)
• M27: 37,430,584 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 344.2

Radius: 4

Gravity: 21.51 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 8.39 AU - 10.89 AU

Year: 20660 Days

Day: 16 Hours

Environment

Temp: -239 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,814,649 km

• M1: 75,846 km (0.116 R)
• M2: 398,080 km (0.111 R)
• M3: 566,378 km (0.094 R)
• M4: 872,006 km (0.087 R)
• M5: 1,420,133 km (0.116 R)
• M6: 1,619,397 km (0.11 R)
• M7: 1,925,624 km (0.118 R)
• M8: 2,189,664 km (0.12 R)
• M9: 2,860,012 km (0.063 R)
• M10: 3,153,074 km (0.114 R)
• M11: 12,478,706 km (0.091 R)
• M12: 13,060,193 km (0.103 R)
• M13: 15,347,246 km (0.102 R)
• M14: 16,165,247 km (0.077 R)
• M15: 18,626,281 km (0.044 R)
• M16: 23,007,405 km (0.09 R)
• M17: 23,880,458 km (0.12 R)
• M18: 30,271,578 km (0.057 R)
• M19: 37,051,653 km (0.109 R)
• M20: 46,747,539 km (0.059 R)
• M21: 48,775,339 km (0.113 R)
• M22: 48,933,763 km (0.039 R)
• M23: 49,092,486 km (0.082 R)
• M24: 53,172,768 km (0.088 R)
• M25: 53,508,765 km (0.103 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: 511 - 16,268 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit