🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.5

Radius: 11.2

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.6 AU - 0.64 AU

Year: 337 Days

Day: 9.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 46,011,618 km

• M1: 147,504 km (0.101 R)
• M2: 667,207 km (0.082 R)
• M3: 1,339,051 km (0.067 R)
• M4: 1,813,425 km (0.079 R)
• M5: 3,039,679 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.1

Radius: 13.4

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.5 AU - 0.82 AU

Year: 370 Days

Day: 11.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,011,618 km

• M1: 168,447 km (0.086 R)
• M2: 587,321 km (0.067 R)
• M3: 1,014,872 km (0.111 R)
• M4: 1,530,685 km (0.119 R)
• M5: 2,163,484 km (0.113 R)
• M6: 2,904,592 km (0.086 R)
• M7: 3,735,758 km (0.038 R)
• M8: 5,059,101 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.1

Radius: 12.1

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.58 AU - 0.86 AU

Year: 422 Days

Day: 7.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,011,618 km

• M1: 150,495 km (0.106 R)
• M2: 969,993 km (0.11 R)
• M3: 1,577,210 km (0.105 R)
• M4: 2,000,572 km (0.066 R)
• M5: 2,464,027 km (0.099 R)
• M6: 3,322,868 km (0.106 R)
• M7: 3,730,522 km (0.107 R)
• M8: 4,211,180 km (0.064 R)
• M9: 4,819,445 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.7

Radius: 9

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.74 AU - 1.86 AU

Year: 1667 Days

Day: 11.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 94.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,011,618 km

• M1: 111,899 km (0.069 R)
• M2: 437,125 km (0.096 R)
• M3: 720,613 km (0.11 R)
• M4: 1,069,026 km (0.073 R)
• M5: 1,513,332 km (0.077 R)
• M6: 1,868,777 km (0.116 R)
• M7: 2,171,712 km (0.098 R)
• M8: 2,484,073 km (0.11 R)
• M9: 2,956,503 km (0.087 R)
• M10: 3,517,345 km (0.115 R)
• M11: 4,367,809 km (0.069 R)
• M12: 4,686,004 km (0.092 R)
• M13: 5,923,926 km (0.085 R)
• M14: 6,932,964 km (0.081 R)
• M15: 8,078,584 km (0.094 R)
• M16: 8,669,197 km (0.097 R)
• M17: 9,230,787 km (0.075 R)
• M18: 10,027,096 km (0.051 R)
• M19: 10,426,523 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.9

Radius: 12.6

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.55 AU - 2.35 AU

Year: 1880 Days

Day: 10.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 46,011,618 km

• M1: 156,629 km (0.074 R)
• M2: 549,473 km (0.104 R)
• M3: 967,300 km (0.112 R)
• M4: 5,207,951 km (0.09 R)
• M5: 9,460,719 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.8

Radius: 8.9

Gravity: 11.06 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.74 AU - 2.52 AU

Year: 2146 Days

Day: 13.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,011,618 km

• M1: 110,702 km (0.095 R)
• M2: 393,442 km (0.118 R)
• M3: 865,274 km (0.06 R)
• M4: 1,668,166 km (0.063 R)
• M5: 2,238,433 km (0.076 R)
• M6: 3,078,275 km (0.048 R)
• M7: 3,543,375 km (0.114 R)
• M8: 4,401,169 km (0.105 R)
• M9: 5,463,913 km (0.102 R)
• M10: 6,120,647 km (0.064 R)
• M11: 7,440,549 km (0.08 R)
• M12: 7,993,164 km (0.12 R)
• M13: 11,695,861 km (0.084 R)
• M14: 12,828,466 km (0.095 R)
• M15: 13,177,628 km (0.109 R)
• M16: 14,124,732 km (0.115 R)
• M17: 14,780,718 km (0.114 R)
• M18: 16,612,544 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.4

Radius: 11.3

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.61 AU - 3.15 AU

Year: 3374 Days

Day: 13.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,011,618 km

• M1: 140,472 km (0.096 R)
• M2: 545,434 km (0.073 R)
• M3: 1,247,646 km (0.116 R)
• M4: 2,210,159 km (0.038 R)
• M5: 2,893,522 km (0.036 R)
• M6: 4,046,772 km (0.116 R)
• M7: 5,096,500 km (0.083 R)
• M8: 5,781,060 km (0.107 R)
• M9: 6,859,661 km (0.114 R)
• M10: 9,683,021 km (0.053 R)
• M11: 10,198,984 km (0.103 R)
• M12: 11,858,174 km (0.096 R)
• M13: 13,396,938 km (0.11 R)
• M14: 14,803,457 km (0.102 R)
• M15: 15,435,658 km (0.032 R)
• M16: 17,382,375 km (0.084 R)
• M17: 18,808,641 km (0.095 R)
• M18: 20,375,679 km (0.038 R)
• M19: 21,892,751 km (0.078 R)
• M20: 22,437,736 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.2

Radius: 13.7

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 4.38 AU - 4.6 AU

Year: 6567 Days

Day: 5 Hours

Environment

Temp: -217 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 46,011,618 km

• M1: 170,542 km (0.071 R)
• M2: 846,874 km (0.115 R)
• M3: 1,553,574 km (0.072 R)
• M4: 2,560,368 km (0.104 R)
• M5: 3,990,374 km (0.116 R)
• M6: 4,453,529 km (0.078 R)
• M7: 4,923,864 km (0.119 R)
• M8: 5,427,411 km (0.096 R)
• M9: 5,900,290 km (0.046 R)
• M10: 7,679,756 km (0.073 R)
• M11: 8,820,739 km (0.107 R)
• M12: 10,402,288 km (0.092 R)
• M13: 11,954,665 km (0.109 R)
• M14: 13,202,610 km (0.046 R)
• M15: 14,416,448 km (0.074 R)
• M16: 15,142,745 km (0.098 R)
• M17: 16,734,317 km (0.106 R)
• M18: 19,290,795 km (0.12 R)
• M19: 20,247,922 km (0.065 R)
• M20: 30,532,925 km (0.049 R)
• M21: 31,328,337 km (0.057 R)
• M22: 33,482,397 km (0.097 R)
• M23: 34,649,260 km (0.054 R)
• M24: 37,514,957 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 355.3

Radius: 5.6

Gravity: 11.33 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 6.94 AU - 7.26 AU

Year: 13059 Days

Day: 24.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 46,011,618 km

• M1: 71,358 km (0.11 R)
• M2: 261,347 km (0.119 R)
• M3: 483,052 km (0.077 R)
• M4: 761,902 km (0.047 R)
• M5: 2,142,391 km (0.087 R)
• M6: 2,650,725 km (0.057 R)
• M7: 3,903,607 km (0.049 R)
• M8: 4,688,846 km (0.111 R)
• M9: 4,931,344 km (0.065 R)
• M10: 6,199,785 km (0.114 R)
• M11: 11,393,972 km (0.109 R)
• M12: 17,722,411 km (0.086 R)
• M13: 19,296,779 km (0.08 R)
• M14: 20,316,737 km (0.108 R)
• M15: 24,304,717 km (0.072 R)
• M16: 26,720,274 km (0.086 R)
• M17: 30,322,591 km (0.11 R)
• M18: 30,952,847 km (0.118 R)
• M19: 31,914,462 km (0.079 R)
• M20: 36,548,555 km (0.093 R)
• M21: 37,262,286 km (0.115 R)
• M22: 43,975,042 km (0.088 R)
• M23: 45,325,911 km (0.038 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 18,098 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit