🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.56 AU - 0.76 AU

Year: 346 Days

Day: 12.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,646,796 km

• M1: 218,413 km (0.047 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926

Radius: 14.5

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.89 AU - 1.19 AU

Year: 685 Days

Day: 12.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,646,796 km

• M1: 181,462 km (0.054 R)
• M2: 711,936 km (0.036 R)
• M3: 1,496,278 km (0.114 R)
• M4: 1,992,644 km (0.092 R)
• M5: 2,534,188 km (0.063 R)
• M6: 3,547,414 km (0.12 R)
• M7: 4,225,841 km (0.115 R)
• M8: 4,833,358 km (0.092 R)
• M9: 5,766,250 km (0.054 R)
• M10: 6,622,249 km (0.069 R)
• M11: 7,491,413 km (0.059 R)
• M12: 8,235,512 km (0.118 R)
• M13: 8,741,452 km (0.108 R)

Planet 3 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 757.9

Radius: 6.4

Gravity: 18.5 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.51 AU - 7.87 AU

Year: 11173 Days

Day: 16 Hours

Environment

Temp: -229 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 74,646,796 km

• M1: 79,586 km (0.116 R)
• M2: 285,882 km (0.097 R)
• M3: 1,652,159 km (0.082 R)
• M4: 2,012,540 km (0.04 R)
• M5: 2,735,846 km (0.089 R)
• M6: 3,097,574 km (0.115 R)
• M7: 4,200,110 km (0.068 R)
• M8: 4,558,247 km (0.117 R)
• M9: 4,808,225 km (0.116 R)
• M10: 5,613,361 km (0.067 R)
• M11: 6,662,491 km (0.096 R)
• M12: 6,984,874 km (0.077 R)
• M13: 8,660,370 km (0.044 R)
• M14: 9,795,369 km (0.109 R)
• M15: 10,318,513 km (0.087 R)
• M16: 14,117,551 km (0.078 R)
• M17: 14,717,139 km (0.11 R)
• M18: 16,471,922 km (0.027 R)
• M19: 16,987,137 km (0.105 R)
• M20: 18,127,522 km (0.026 R)
• M21: 20,899,571 km (0.098 R)
• M22: 26,458,627 km (0.045 R)
• M23: 26,759,918 km (0.068 R)
• M24: 29,791,369 km (0.06 R)
• M25: 30,666,217 km (0.092 R)
• M26: 31,670,767 km (0.114 R)
• M27: 33,510,671 km (0.079 R)
• M28: 38,035,857 km (0.081 R)
• M29: 44,349,934 km (0.085 R)
• M30: 45,203,091 km (0.097 R)
• M31: 47,383,779 km (0.114 R)
• M32: 50,245,287 km (0.084 R)
• M33: 50,862,079 km (0.041 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 304.2

Radius: 4.1

Gravity: 18.1 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 7.06 AU - 9.18 AU

Year: 14940 Days

Day: 23.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 74,646,796 km

• M1: 51,162 km (0.067 R)
• M2: 1,179,579 km (0.072 R)
• M3: 1,630,018 km (0.078 R)
• M4: 2,334,475 km (0.111 R)
• M5: 3,038,183 km (0.086 R)
• M6: 4,637,534 km (0.068 R)
• M7: 5,330,771 km (0.045 R)
• M8: 6,272,788 km (0.053 R)
• M9: 6,919,799 km (0.08 R)
• M10: 7,078,373 km (0.115 R)
• M11: 8,707,494 km (0.116 R)
• M12: 10,887,284 km (0.104 R)
• M13: 12,566,072 km (0.107 R)
• M14: 16,077,732 km (0.089 R)
• M15: 17,574,907 km (0.091 R)
• M16: 19,396,860 km (0.111 R)
• M17: 21,677,031 km (0.114 R)
• M18: 22,619,647 km (0.118 R)
• M19: 27,151,864 km (0.12 R)
• M20: 29,060,583 km (0.057 R)
• M21: 31,164,528 km (0.06 R)
• M22: 34,048,475 km (0.1 R)
• M23: 39,074,515 km (0.117 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 989.4

Radius: 6.8

Gravity: 21.4 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 6.54 AU - 10.58 AU

Year: 16171 Days

Day: 20.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 74,646,796 km

• M1: 85,271 km (0.104 R)
• M2: 390,002 km (0.052 R)
• M3: 699,071 km (0.116 R)
• M4: 1,721,423 km (0.079 R)
• M5: 2,327,444 km (0.069 R)
• M6: 3,067,205 km (0.057 R)
• M7: 3,281,429 km (0.106 R)
• M8: 3,740,246 km (0.072 R)
• M9: 4,208,338 km (0.094 R)
• M10: 4,964,705 km (0.099 R)
• M11: 8,382,268 km (0.1 R)
• M12: 8,964,652 km (0.088 R)
• M13: 9,460,869 km (0.095 R)
• M14: 14,038,863 km (0.109 R)
• M15: 17,854,805 km (0.119 R)
• M16: 20,372,836 km (0.095 R)
• M17: 21,229,883 km (0.118 R)
• M18: 22,914,205 km (0.077 R)
• M19: 25,115,239 km (0.103 R)
• M20: 25,659,476 km (0.088 R)
• M21: 26,100,341 km (0.11 R)
• M22: 28,734,460 km (0.101 R)
• M23: 28,971,572 km (0.106 R)
• M24: 32,557,882 km (0.075 R)
• M25: 34,657,937 km (0.095 R)
• M26: 35,061,552 km (0.113 R)
• M27: 36,568,152 km (0.084 R)
• M28: 43,962,925 km (0.115 R)
• M29: 45,392,033 km (0.115 R)
• M30: 46,361,577 km (0.037 R)
• M31: 47,015,768 km (0.051 R)
• M32: 61,620,261 km (0.103 R)
• M33: 65,435,904 km (0.055 R)
• M34: 66,880,421 km (0.047 R)
• M35: 71,558,795 km (0.047 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: 275 - 13,291 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit