🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.45 AU - 0.61 AU

Year: 136 Days

Day: 12.7 Hours

Environment

Temp: 257 °C

Axial Tilt: 25.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.86 AU - 0.9 AU

Year: 290 Days

Day: 33.9 Hours

Environment

Temp: 130 °C

Axial Tilt: 25.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 73,029,117 km

• M1: 41,588 km (0.05 R)
• M2: 375,640 km (0.049 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.81 AU - 0.99 AU

Year: 300 Days

Day: 39 Hours

Environment

Temp: 156 °C

Axial Tilt: 1.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 73,029,117 km

• M1: 28,573 km (0.076 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.92 AU - 1.1 AU

Year: 357 Days

Day: 35.1 Hours

Environment

Temp: 90 °C

Axial Tilt: 16.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 73,029,117 km

• M1: 9,275 km (0.112 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.81 AU - 1.33 AU

Year: 389 Days

Day: 39.6 Hours

Environment

Temp: 159 °C

Axial Tilt: 32.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 6 - Gas Giant

Semi-Major Axis: 5.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.4

Radius: 13.3

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 4.25 AU - 6.91 AU

Year: 4633 Days

Day: 9.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,029,117 km

• M1: 166,203 km (0.039 R)
• M2: 689,048 km (0.082 R)
• M3: 1,128,417 km (0.07 R)
• M4: 2,000,872 km (0.103 R)
• M5: 2,730,909 km (0.045 R)
• M6: 3,168,782 km (0.053 R)
• M7: 3,632,685 km (0.119 R)
• M8: 4,698,869 km (0.056 R)
• M9: 5,472,290 km (0.118 R)
• M10: 6,236,286 km (0.103 R)
• M11: 7,273,000 km (0.082 R)
• M12: 8,459,460 km (0.096 R)
• M13: 9,938,684 km (0.095 R)
• M14: 11,398,011 km (0.044 R)
• M15: 12,894,888 km (0.099 R)
• M16: 18,044,495 km (0.113 R)
• M17: 19,668,829 km (0.03 R)
• M18: 20,827,913 km (0.116 R)
• M19: 22,031,877 km (0.113 R)
• M20: 23,658,305 km (0.103 R)
• M21: 24,500,840 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.3

Radius: 11.9

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 7.17 AU - 8.61 AU

Year: 7789 Days

Day: 12.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 73,029,117 km

• M1: 148,102 km (0.061 R)
• M2: 528,380 km (0.081 R)
• M3: 1,043,146 km (0.112 R)
• M4: 1,608,776 km (0.111 R)
• M5: 2,461,633 km (0.097 R)
• M6: 3,126,446 km (0.048 R)
• M7: 3,713,169 km (0.11 R)
• M8: 4,292,262 km (0.095 R)
• M9: 6,057,068 km (0.098 R)
• M10: 6,433,456 km (0.071 R)
• M11: 6,935,058 km (0.055 R)
• M12: 7,309,202 km (0.05 R)
• M13: 8,899,877 km (0.056 R)
• M14: 9,569,477 km (0.045 R)
• M15: 10,416,949 km (0.06 R)
• M16: 12,099,775 km (0.108 R)
• M17: 13,839,299 km (0.099 R)
• M18: 16,586,814 km (0.078 R)
• M19: 17,739,615 km (0.109 R)
• M20: 19,978,197 km (0.113 R)
• M21: 21,518,756 km (0.071 R)
• M22: 24,748,425 km (0.1 R)
• M23: 27,535,882 km (0.038 R)
• M24: 28,669,086 km (0.104 R)
• M25: 32,566,858 km (0.102 R)
• M26: 33,514,112 km (0.099 R)
• M27: 35,353,418 km (0.12 R)
• M28: 35,906,930 km (0.095 R)
• M29: 37,258,995 km (0.059 R)
• M30: 38,179,022 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 722

Radius: 6.6

Gravity: 16.57 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 12.19 AU - 15.01 AU

Year: 17627 Days

Day: 16.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,029,117 km

• M1: 82,279 km (0.065 R)
• M2: 362,476 km (0.077 R)
• M3: 1,140,534 km (0.086 R)
• M4: 4,364,967 km (0.067 R)
• M5: 4,770,377 km (0.057 R)
• M6: 6,561,063 km (0.101 R)
• M7: 11,340,117 km (0.107 R)
• M8: 23,236,738 km (0.087 R)
• M9: 26,730,896 km (0.097 R)
• M10: 30,077,549 km (0.094 R)
• M11: 33,050,358 km (0.061 R)
• M12: 35,004,406 km (0.099 R)
• M13: 35,807,148 km (0.081 R)
• M14: 38,007,882 km (0.039 R)
• M15: 42,073,354 km (0.08 R)
• M16: 42,980,665 km (0.116 R)
• M17: 43,746,606 km (0.083 R)
• M18: 48,041,262 km (0.045 R)
• M19: 54,728,137 km (0.115 R)
• M20: 63,184,007 km (0.064 R)
• M21: 68,237,872 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 515.6

Radius: 3.1

Gravity: 53.65 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 13.8 AU - 17.42 AU

Year: 21676 Days

Day: 18 Hours

Environment

Temp: -193 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,029,117 km

• M1: 38,596 km (0.112 R)
• M2: 343,178 km (0.057 R)
• M3: 881,131 km (0.102 R)
• M4: 2,685,581 km (0.117 R)
• M5: 2,807,354 km (0.044 R)
• M6: 3,735,758 km (0.053 R)
• M7: 3,918,567 km (0.074 R)
• M8: 4,435,278 km (0.11 R)
• M9: 5,180,425 km (0.095 R)
• M10: 14,576,517 km (0.088 R)
• M11: 17,858,545 km (0.031 R)
• M12: 26,718,479 km (0.057 R)
• M13: 31,326,692 km (0.06 R)
• M14: 33,361,223 km (0.062 R)
• M15: 35,753,143 km (0.083 R)
• M16: 41,023,925 km (0.1 R)
• M17: 42,838,547 km (0.075 R)
• M18: 60,470,003 km (0.09 R)
• M19: 61,440,593 km (0.114 R)
• M20: 69,369,580 km (0.106 R)
• M21: 69,581,261 km (0.105 R)

Kuiper Belt

Range: 31.2 - 51.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 267 - 12,195 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit