🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.6 AU - 0.76 AU

Year: 208 Days

Day: 41 Hours

Environment

Temp: 191 °C

Axial Tilt: 16.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.82 AU - 2.86 AU

Year: 1775 Days

Day: 14.6 Hours

Environment

Temp: -106 °C

Axial Tilt: 45.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.37 AU - 3.79 AU

Year: 2005 Days

Day: 46.9 Hours

Environment

Temp: -100 °C

Axial Tilt: 45.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.6

Radius: 11

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.63 AU - 5.57 AU

Year: 3659 Days

Day: 9.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,890,484 km

• M1: 137,032 km (0.089 R)
• M2: 582,684 km (0.075 R)
• M3: 1,312,123 km (0.066 R)
• M4: 2,200,884 km (0.079 R)
• M5: 3,112,982 km (0.113 R)
• M6: 3,639,716 km (0.088 R)
• M7: 4,000,696 km (0.057 R)
• M8: 4,970,389 km (0.075 R)
• M9: 7,293,345 km (0.045 R)
• M10: 9,662,078 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.3

Radius: 14.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.4 AU - 6.14 AU

Year: 4487 Days

Day: 14.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 126 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,890,484 km

• M1: 179,069 km (0.062 R)
• M2: 836,402 km (0.027 R)
• M3: 1,329,027 km (0.086 R)
• M4: 1,799,662 km (0.1 R)
• M5: 3,980,799 km (0.054 R)
• M6: 5,437,583 km (0.118 R)
• M7: 6,646,783 km (0.069 R)
• M8: 7,588,950 km (0.09 R)
• M9: 8,618,633 km (0.103 R)
• M10: 9,922,976 km (0.095 R)
• M11: 11,194,109 km (0.056 R)
• M12: 12,527,774 km (0.107 R)
• M13: 16,741,348 km (0.068 R)
• M14: 17,543,342 km (0.067 R)
• M15: 18,147,867 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.1

Radius: 8.8

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 6.01 AU - 7.67 AU

Year: 6634 Days

Day: 8.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,890,484 km

• M1: 109,506 km (0.09 R)
• M2: 417,228 km (0.118 R)
• M3: 880,383 km (0.06 R)
• M4: 1,222,215 km (0.118 R)
• M5: 1,974,692 km (0.06 R)
• M6: 3,345,008 km (0.107 R)
• M7: 4,564,829 km (0.073 R)
• M8: 5,067,179 km (0.047 R)
• M9: 8,188,987 km (0.065 R)
• M10: 9,548,533 km (0.1 R)
• M11: 11,192,613 km (0.103 R)
• M12: 12,255,058 km (0.119 R)
• M13: 13,069,020 km (0.094 R)
• M14: 14,356,908 km (0.046 R)
• M15: 14,747,956 km (0.116 R)
• M16: 15,031,744 km (0.067 R)
• M17: 16,934,479 km (0.077 R)
• M18: 19,464,029 km (0.098 R)
• M19: 20,012,455 km (0.117 R)
• M20: 21,284,037 km (0.044 R)
• M21: 23,831,390 km (0.115 R)
• M22: 24,379,965 km (0.038 R)
• M23: 24,776,998 km (0.117 R)
• M24: 25,421,166 km (0.045 R)
• M25: 26,408,213 km (0.084 R)
• M26: 29,076,441 km (0.054 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 974.5

Radius: 5.2

Gravity: 36.04 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 14.44 AU - 16.02 AU

Year: 22042 Days

Day: 21.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,890,484 km

• M1: 64,626 km (0.104 R)
• M2: 397,930 km (0.109 R)
• M3: 984,204 km (0.036 R)
• M4: 1,631,664 km (0.081 R)
• M5: 1,941,631 km (0.089 R)
• M6: 2,653,417 km (0.098 R)
• M7: 3,284,421 km (0.099 R)
• M8: 8,050,909 km (0.036 R)
• M9: 9,297,807 km (0.104 R)
• M10: 11,885,401 km (0.103 R)
• M11: 13,267,536 km (0.066 R)
• M12: 17,051,016 km (0.044 R)
• M13: 21,391,897 km (0.113 R)
• M14: 21,600,287 km (0.069 R)
• M15: 23,648,282 km (0.114 R)
• M16: 26,896,949 km (0.047 R)
• M17: 30,694,641 km (0.113 R)
• M18: 32,172,219 km (0.099 R)
• M19: 36,738,993 km (0.043 R)
• M20: 45,050,352 km (0.091 R)
• M21: 47,131,557 km (0.059 R)
• M22: 48,554,083 km (0.08 R)
• M23: 51,859,149 km (0.054 R)
• M24: 56,893,117 km (0.049 R)
• M25: 65,916,711 km (0.113 R)
• M26: 67,470,584 km (0.097 R)
• M27: 72,278,062 km (0.096 R)
• M28: 75,606,764 km (0.068 R)
• M29: 83,338,281 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.4

Radius: 6.1

Gravity: 20.92 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 12.33 AU - 19.05 AU

Year: 23048 Days

Day: 25 Hours

Environment

Temp: -191 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,890,484 km

• M1: 77,791 km (0.083 R)
• M2: 619,036 km (0.113 R)
• M3: 816,206 km (0.037 R)
• M4: 1,042,847 km (0.055 R)
• M5: 1,850,077 km (0.105 R)
• M6: 2,880,058 km (0.104 R)
• M7: 4,316,198 km (0.068 R)
• M8: 6,769,902 km (0.098 R)
• M9: 7,503,979 km (0.06 R)
• M10: 9,779,961 km (0.085 R)
• M11: 11,575,135 km (0.108 R)
• M12: 13,057,949 km (0.069 R)
• M13: 13,959,875 km (0.108 R)
• M14: 14,663,134 km (0.096 R)
• M15: 15,720,193 km (0.104 R)
• M16: 17,444,159 km (0.046 R)
• M17: 18,723,520 km (0.094 R)
• M18: 19,771,603 km (0.077 R)
• M19: 21,161,367 km (0.117 R)
• M20: 23,366,290 km (0.092 R)
• M21: 31,683,183 km (0.071 R)
• M22: 32,895,225 km (0.115 R)
• M23: 41,936,322 km (0.097 R)
• M24: 46,246,387 km (0.059 R)
• M25: 50,297,347 km (0.111 R)
• M26: 51,759,966 km (0.114 R)
• M27: 66,876,831 km (0.084 R)
• M28: 71,125,111 km (0.093 R)
• M29: 77,466,714 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 221.6

Radius: 4.2

Gravity: 12.56 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 13.89 AU - 19.39 AU

Year: 25173 Days

Day: 17.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,890,484 km

• M1: 54,902 km (0.083 R)
• M2: 320,588 km (0.087 R)
• M3: 469,588 km (0.096 R)
• M4: 1,002,904 km (0.087 R)
• M5: 1,223,262 km (0.116 R)
• M6: 1,971,999 km (0.099 R)
• M7: 2,464,625 km (0.114 R)
• M8: 2,890,680 km (0.09 R)
• M9: 6,012,638 km (0.091 R)
• M10: 10,064,197 km (0.093 R)
• M11: 12,107,704 km (0.12 R)
• M12: 12,803,035 km (0.118 R)
• M13: 14,481,672 km (0.082 R)
• M14: 15,629,686 km (0.109 R)
• M15: 17,070,314 km (0.118 R)
• M16: 17,702,514 km (0.056 R)
• M17: 21,189,192 km (0.034 R)
• M18: 23,719,341 km (0.09 R)
• M19: 28,923,103 km (0.049 R)
• M20: 34,964,613 km (0.116 R)
• M21: 35,344,143 km (0.037 R)
• M22: 35,854,421 km (0.097 R)
• M23: 37,151,434 km (0.083 R)
• M24: 39,291,282 km (0.118 R)
• M25: 42,941,321 km (0.096 R)
• M26: 58,904,760 km (0.119 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 224 - 12,728 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit