🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.79 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.2 AU - 1.94 AU

Year: 698 Days

Day: 40.5 Hours

Environment

Temp: -35 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.68 AU - 2.62 AU

Year: 1118 Days

Day: 23.5 Hours

Environment

Temp: -66 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 102,997,239 km

• M1: 58,343 km (0.115 R)
• M2: 210,035 km (0.086 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.65 AU - 4.11 AU

Year: 2205 Days

Day: 35.4 Hours

Environment

Temp: -97 °C

Axial Tilt: 23.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.06 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.2

Radius: 8.6

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 6.2 AU - 7.26 AU

Year: 6194 Days

Day: 12.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 102,997,239 km

• M1: 106,962 km (0.065 R)
• M2: 446,849 km (0.12 R)
• M3: 992,432 km (0.073 R)
• M4: 1,550,283 km (0.116 R)
• M5: 2,226,316 km (0.045 R)
• M6: 3,403,651 km (0.078 R)
• M7: 4,104,666 km (0.113 R)
• M8: 5,821,302 km (0.088 R)
• M9: 6,183,927 km (0.077 R)
• M10: 6,626,138 km (0.08 R)
• M11: 6,988,315 km (0.041 R)
• M12: 7,609,296 km (0.071 R)
• M13: 9,610,915 km (0.027 R)
• M14: 10,075,417 km (0.052 R)
• M15: 10,643,589 km (0.112 R)
• M16: 11,418,805 km (0.105 R)
• M17: 11,940,004 km (0.064 R)
• M18: 12,230,972 km (0.096 R)
• M19: 16,697,815 km (0.059 R)
• M20: 21,568,273 km (0.104 R)
• M21: 27,730,359 km (0.119 R)
• M22: 28,585,610 km (0.032 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.9

Radius: 8.4

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 11.07 AU - 12.25 AU

Year: 14125 Days

Day: 10.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 102,997,239 km

• M1: 104,419 km (0.113 R)
• M2: 448,345 km (0.107 R)
• M3: 1,932,804 km (0.118 R)
• M4: 2,312,185 km (0.062 R)
• M5: 2,592,232 km (0.084 R)
• M6: 2,895,018 km (0.059 R)
• M7: 4,171,686 km (0.042 R)
• M8: 4,509,029 km (0.088 R)
• M9: 4,892,598 km (0.059 R)
• M10: 6,614,919 km (0.078 R)
• M11: 7,823,520 km (0.11 R)
• M12: 9,478,371 km (0.034 R)
• M13: 11,706,482 km (0.08 R)
• M14: 14,204,318 km (0.087 R)
• M15: 15,393,471 km (0.109 R)
• M16: 23,143,838 km (0.096 R)
• M17: 24,786,871 km (0.074 R)
• M18: 32,743,683 km (0.03 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 554.4

Radius: 4.8

Gravity: 24.06 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 13.22 AU - 20.12 AU

Year: 24146 Days

Day: 17.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 102,997,239 km

• M1: 79,736 km (0.097 R)
• M2: 497,712 km (0.034 R)
• M3: 950,545 km (0.07 R)
• M4: 1,423,424 km (0.108 R)
• M5: 3,902,410 km (0.116 R)
• M6: 5,436,087 km (0.082 R)
• M7: 5,843,293 km (0.102 R)
• M8: 7,091,388 km (0.078 R)
• M9: 8,241,795 km (0.087 R)
• M10: 8,888,956 km (0.051 R)
• M11: 9,803,597 km (0.098 R)
• M12: 12,993,024 km (0.119 R)
• M13: 20,727,084 km (0.086 R)
• M14: 21,218,364 km (0.111 R)
• M15: 33,412,535 km (0.116 R)
• M16: 45,664,002 km (0.1 R)
• M17: 46,998,714 km (0.107 R)
• M18: 56,694,751 km (0.067 R)
• M19: 58,041,580 km (0.042 R)
• M20: 61,200,040 km (0.117 R)
• M21: 65,516,687 km (0.072 R)
• M22: 73,835,525 km (0.11 R)
• M23: 78,247,017 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 965.6

Radius: 4.2

Gravity: 54.74 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 13.51 AU - 21.99 AU

Year: 26530 Days

Day: 15.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 102,997,239 km

• M1: 52,210 km (0.079 R)
• M2: 212,878 km (0.112 R)
• M3: 392,694 km (0.11 R)
• M4: 1,511,238 km (0.106 R)
• M5: 1,903,633 km (0.076 R)
• M6: 3,089,495 km (0.068 R)
• M7: 3,521,235 km (0.112 R)
• M8: 4,027,474 km (0.094 R)
• M9: 5,480,967 km (0.081 R)
• M10: 5,790,634 km (0.097 R)
• M11: 9,558,706 km (0.068 R)
• M12: 10,203,772 km (0.085 R)
• M13: 12,312,503 km (0.092 R)
• M14: 12,920,319 km (0.091 R)
• M15: 13,231,632 km (0.104 R)
• M16: 13,950,450 km (0.08 R)
• M17: 21,195,026 km (0.075 R)
• M18: 23,765,267 km (0.116 R)
• M19: 25,427,300 km (0.11 R)
• M20: 25,670,995 km (0.055 R)
• M21: 28,323,514 km (0.069 R)
• M22: 28,848,603 km (0.106 R)
• M23: 35,060,505 km (0.114 R)
• M24: 37,366,407 km (0.107 R)
• M25: 40,099,560 km (0.064 R)
• M26: 43,482,117 km (0.11 R)
• M27: 45,600,273 km (0.089 R)
• M28: 52,365,687 km (0.109 R)
• M29: 54,761,497 km (0.103 R)
• M30: 54,964,352 km (0.03 R)
• M31: 55,575,908 km (0.075 R)
• M32: 62,164,198 km (0.103 R)
• M33: 65,302,911 km (0.113 R)
• M34: 78,398,410 km (0.059 R)
• M35: 88,036,253 km (0.117 R)
• M36: 91,416,267 km (0.046 R)
• M37: 97,240,112 km (0.063 R)
• M38: 99,939,606 km (0.051 R)

Kuiper Belt

Range: 30.9 - 47.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 18,003 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit