🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.69 AU - 0.79 AU

Year: 223 Days

Day: 47.4 Hours

Environment

Temp: 180 °C

Axial Tilt: 34.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.14 AU - 2.64 AU

Year: 1293 Days

Day: 31.1 Hours

Environment

Temp: -79 °C

Axial Tilt: 22.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.59 AU - 2.83 AU

Year: 1561 Days

Day: 17 Hours

Environment

Temp: -73 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.18 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536

Radius: 8.5

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 5.54 AU - 5.74 AU

Year: 4686 Days

Day: 6.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 94,381,986 km

• M1: 107,860 km (0.038 R)
• M2: 491,279 km (0.049 R)
• M3: 808,128 km (0.097 R)
• M4: 1,243,757 km (0.07 R)
• M5: 1,908,420 km (0.08 R)
• M6: 2,215,993 km (0.059 R)
• M7: 2,556,777 km (0.117 R)
• M8: 3,816,242 km (0.113 R)
• M9: 4,569,916 km (0.092 R)
• M10: 5,668,413 km (0.061 R)
• M11: 7,805,867 km (0.056 R)
• M12: 9,327,128 km (0.049 R)
• M13: 12,895,935 km (0.072 R)
• M14: 13,797,262 km (0.114 R)
• M15: 14,368,427 km (0.064 R)
• M16: 15,227,118 km (0.116 R)
• M17: 15,557,879 km (0.109 R)
• M18: 16,578,885 km (0.052 R)
• M19: 17,764,897 km (0.058 R)
• M20: 18,193,195 km (0.045 R)
• M21: 18,816,869 km (0.114 R)
• M22: 25,548,175 km (0.094 R)
• M23: 26,488,547 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.7

Radius: 11.1

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 6.45 AU - 8.25 AU

Year: 6971 Days

Day: 5.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 94,381,986 km

• M1: 140,622 km (0.088 R)
• M2: 486,343 km (0.056 R)
• M3: 911,350 km (0.04 R)
• M4: 1,378,844 km (0.077 R)
• M5: 2,409,124 km (0.106 R)
• M6: 4,276,255 km (0.076 R)
• M7: 4,684,657 km (0.11 R)
• M8: 5,091,264 km (0.097 R)
• M9: 5,821,452 km (0.12 R)
• M10: 6,687,025 km (0.085 R)
• M11: 8,915,734 km (0.075 R)
• M12: 10,020,664 km (0.112 R)
• M13: 10,469,009 km (0.096 R)
• M14: 11,551,648 km (0.113 R)
• M15: 14,898,153 km (0.087 R)
• M16: 19,665,238 km (0.088 R)
• M17: 21,827,676 km (0.081 R)
• M18: 26,790,884 km (0.097 R)
• M19: 29,079,283 km (0.077 R)
• M20: 30,550,578 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 252.9

Radius: 3.4

Gravity: 21.88 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 11.5 AU - 16.02 AU

Year: 17857 Days

Day: 24.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 94,381,986 km

• M1: 42,336 km (0.066 R)
• M2: 153,338 km (0.088 R)
• M3: 290,669 km (0.105 R)
• M4: 459,116 km (0.038 R)
• M5: 595,549 km (0.115 R)
• M6: 776,862 km (0.098 R)
• M7: 983,307 km (0.113 R)
• M8: 1,105,528 km (0.059 R)
• M9: 1,250,339 km (0.069 R)
• M10: 1,380,489 km (0.119 R)
• M11: 1,762,263 km (0.044 R)
• M12: 2,047,546 km (0.11 R)
• M13: 2,624,695 km (0.067 R)
• M14: 3,278,737 km (0.027 R)
• M15: 4,007,129 km (0.113 R)
• M16: 4,589,363 km (0.035 R)
• M17: 5,427,860 km (0.088 R)
• M18: 5,919,289 km (0.09 R)
• M19: 10,481,126 km (0.099 R)
• M20: 10,802,313 km (0.073 R)
• M21: 11,020,127 km (0.059 R)
• M22: 11,464,283 km (0.104 R)
• M23: 13,236,868 km (0.119 R)
• M24: 14,449,210 km (0.071 R)
• M25: 14,913,861 km (0.094 R)
• M26: 15,594,980 km (0.114 R)
• M27: 16,154,476 km (0.117 R)
• M28: 16,296,444 km (0.094 R)
• M29: 18,526,948 km (0.117 R)
• M30: 21,805,984 km (0.079 R)
• M31: 24,692,325 km (0.043 R)
• M32: 31,098,555 km (0.078 R)
• M33: 32,095,625 km (0.083 R)
• M34: 34,387,015 km (0.037 R)
• M35: 36,540,327 km (0.074 R)
• M36: 37,525,728 km (0.049 R)
• M37: 37,774,659 km (0.075 R)
• M38: 39,420,535 km (0.115 R)
• M39: 43,126,523 km (0.112 R)
• M40: 44,226,516 km (0.107 R)
• M41: 50,612,251 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 715.8

Radius: 5.5

Gravity: 23.66 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 13.7 AU - 22.58 AU

Year: 27029 Days

Day: 19.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 94,381,986 km

• M1: 68,665 km (0.092 R)
• M2: 565,181 km (0.055 R)
• M3: 845,826 km (0.111 R)
• M4: 1,142,629 km (0.101 R)
• M5: 2,274,785 km (0.116 R)
• M6: 3,551,005 km (0.069 R)
• M7: 4,077,589 km (0.057 R)
• M8: 4,730,434 km (0.119 R)
• M9: 5,243,555 km (0.098 R)
• M10: 6,104,491 km (0.104 R)
• M11: 8,893,893 km (0.117 R)
• M12: 11,232,407 km (0.111 R)
• M13: 11,507,517 km (0.095 R)
• M14: 11,928,485 km (0.117 R)
• M15: 14,349,278 km (0.084 R)
• M16: 20,035,344 km (0.071 R)
• M17: 26,571,574 km (0.063 R)
• M18: 27,929,474 km (0.094 R)
• M19: 29,593,002 km (0.074 R)
• M20: 34,254,023 km (0.079 R)
• M21: 34,542,448 km (0.068 R)
• M22: 35,860,704 km (0.047 R)
• M23: 38,441,716 km (0.112 R)
• M24: 38,909,658 km (0.118 R)
• M25: 45,343,563 km (0.112 R)
• M26: 47,457,232 km (0.051 R)
• M27: 47,995,634 km (0.06 R)
• M28: 54,779,150 km (0.071 R)
• M29: 61,533,943 km (0.112 R)
• M30: 63,034,708 km (0.091 R)
• M31: 63,251,177 km (0.105 R)
• M32: 68,137,791 km (0.12 R)
• M33: 72,793,127 km (0.083 R)
• M34: 76,420,726 km (0.085 R)
• M35: 76,666,665 km (0.117 R)
• M36: 84,558,401 km (0.094 R)
• M37: 94,099,305 km (0.1 R)

Kuiper Belt

Range: 31.4 - 46.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 13,252 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit