🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.65 AU - 0.85 AU

Year: 272 Days

Day: 47.9 Hours

Environment

Temp: 4 °C

Axial Tilt: 41.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.93 AU - 1.35 AU

Year: 510 Days

Day: 25.8 Hours

Environment

Temp: -56 °C

Axial Tilt: 47.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.01

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.22 AU - 2.4 AU

Year: 1471 Days

Day: 21.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,656,978 km

• M1: 79,885 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.05 AU - 3.39 AU

Year: 1879 Days

Day: 31.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.16 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.6

Radius: 9.7

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.72 AU - 4.48 AU

Year: 2862 Days

Day: 12.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 86.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,656,978 km

• M1: 120,576 km (0.111 R)
• M2: 637,736 km (0.115 R)
• M3: 1,078,002 km (0.112 R)
• M4: 1,650,065 km (0.07 R)
• M5: 2,114,416 km (0.104 R)
• M6: 2,710,564 km (0.055 R)
• M7: 3,378,967 km (0.062 R)
• M8: 3,713,767 km (0.089 R)
• M9: 4,762,747 km (0.029 R)
• M10: 6,024,905 km (0.101 R)
• M11: 6,435,401 km (0.1 R)
• M12: 7,622,161 km (0.117 R)
• M13: 8,037,594 km (0.055 R)
• M14: 10,896,111 km (0.111 R)
• M15: 12,662,861 km (0.101 R)
• M16: 14,322,949 km (0.075 R)
• M17: 19,041,415 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.4

Radius: 8.2

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3 AU - 4.94 AU

Year: 3314 Days

Day: 14.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,656,978 km

• M1: 102,026 km (0.116 R)
• M2: 409,749 km (0.108 R)
• M3: 816,954 km (0.114 R)
• M4: 1,849,030 km (0.117 R)
• M5: 2,250,850 km (0.083 R)
• M6: 4,084,022 km (0.03 R)
• M7: 4,789,974 km (0.109 R)
• M8: 7,576,235 km (0.093 R)
• M9: 9,071,316 km (0.111 R)
• M10: 10,159,191 km (0.094 R)
• M11: 11,489,266 km (0.096 R)
• M12: 12,931,689 km (0.117 R)
• M13: 15,581,665 km (0.09 R)
• M14: 16,072,496 km (0.067 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.4

Radius: 10.1

Gravity: 9.7 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.9 AU - 5.32 AU

Year: 4147 Days

Day: 7.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 122.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,656,978 km

• M1: 125,961 km (0.108 R)
• M2: 594,502 km (0.094 R)
• M3: 993,779 km (0.12 R)
• M4: 2,461,633 km (0.117 R)
• M5: 2,841,612 km (0.054 R)
• M6: 3,699,107 km (0.066 R)
• M7: 5,310,874 km (0.101 R)
• M8: 5,741,117 km (0.057 R)
• M9: 6,288,197 km (0.071 R)
• M10: 8,252,267 km (0.11 R)
• M11: 8,752,074 km (0.046 R)
• M12: 10,068,685 km (0.083 R)
• M13: 10,505,959 km (0.09 R)
• M14: 13,611,761 km (0.096 R)
• M15: 13,931,152 km (0.098 R)
• M16: 14,919,545 km (0.116 R)
• M17: 15,720,043 km (0.108 R)
• M18: 16,428,838 km (0.096 R)
• M19: 17,469,142 km (0.102 R)
• M20: 18,358,351 km (0.05 R)
• M21: 19,411,371 km (0.037 R)
• M22: 21,278,652 km (0.092 R)
• M23: 23,414,460 km (0.102 R)
• M24: 23,950,769 km (0.104 R)
• M25: 26,755,729 km (0.093 R)
• M26: 28,453,216 km (0.114 R)
• M27: 30,131,255 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.2

Radius: 12.7

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.14 AU - 7.88 AU

Year: 6959 Days

Day: 9.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 54,656,978 km

• M1: 158,125 km (0.079 R)
• M2: 572,960 km (0.054 R)
• M3: 1,020,257 km (0.106 R)
• M4: 1,502,411 km (0.073 R)
• M5: 2,074,174 km (0.078 R)
• M6: 2,986,422 km (0.069 R)
• M7: 3,546,367 km (0.099 R)
• M8: 4,049,016 km (0.065 R)
• M9: 4,737,316 km (0.11 R)
• M10: 5,440,725 km (0.112 R)
• M11: 5,882,487 km (0.095 R)
• M12: 7,544,520 km (0.075 R)
• M13: 8,216,813 km (0.116 R)
• M14: 10,332,575 km (0.096 R)
• M15: 11,568,104 km (0.098 R)
• M16: 13,920,231 km (0.099 R)
• M17: 14,932,560 km (0.058 R)
• M18: 15,866,051 km (0.111 R)
• M19: 18,265,152 km (0.083 R)
• M20: 19,260,427 km (0.102 R)
• M21: 19,771,453 km (0.03 R)
• M22: 20,973,472 km (0.043 R)
• M23: 21,670,598 km (0.058 R)
• M24: 23,688,673 km (0.088 R)
• M25: 24,360,218 km (0.107 R)
• M26: 26,183,367 km (0.099 R)
• M27: 27,173,855 km (0.067 R)
• M28: 28,095,826 km (0.068 R)
• M29: 28,658,913 km (0.115 R)
• M30: 29,517,754 km (0.113 R)
• M31: 30,491,936 km (0.112 R)
• M32: 31,086,737 km (0.118 R)
• M33: 32,917,515 km (0.079 R)
• M34: 35,360,299 km (0.089 R)
• M35: 37,129,294 km (0.087 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.9

Radius: 10.5

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 7.59 AU - 11.79 AU

Year: 12638 Days

Day: 14.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,656,978 km

• M1: 142,417 km (0.107 R)
• M2: 547,528 km (0.103 R)
• M3: 893,847 km (0.113 R)
• M4: 1,488,200 km (0.072 R)
• M5: 2,107,984 km (0.083 R)
• M6: 4,228,384 km (0.041 R)
• M7: 5,542,452 km (0.059 R)
• M8: 5,974,341 km (0.099 R)
• M9: 6,351,178 km (0.108 R)
• M10: 8,111,197 km (0.111 R)
• M11: 9,912,953 km (0.098 R)
• M12: 11,103,004 km (0.104 R)
• M13: 12,026,472 km (0.083 R)
• M14: 15,806,661 km (0.084 R)
• M15: 16,900,071 km (0.057 R)
• M16: 18,435,245 km (0.08 R)
• M17: 19,894,572 km (0.045 R)
• M18: 22,226,055 km (0.098 R)
• M19: 25,511,822 km (0.054 R)
• M20: 26,205,807 km (0.089 R)
• M21: 26,709,054 km (0.046 R)
• M22: 27,527,953 km (0.119 R)
• M23: 28,894,081 km (0.096 R)
• M24: 30,525,894 km (0.114 R)
• M25: 34,933,496 km (0.077 R)
• M26: 38,054,108 km (0.111 R)
• M27: 41,764,285 km (0.045 R)
• M28: 43,706,963 km (0.101 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 370 - 13,169 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit