🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.57 AU - 0.59 AU

Year: 155 Days

Day: 33.6 Hours

Environment

Temp: 267 °C

Axial Tilt: 37.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.64 AU - 0.76 AU

Year: 205 Days

Day: 32.8 Hours

Environment

Temp: 148 °C

Axial Tilt: 23.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.44

Radius: 0.72

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.81 AU - 0.97 AU

Year: 294 Days

Day: 39.9 Hours

Environment

Temp: 128 °C

Axial Tilt: 31.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.54 AU - 3.58 AU

Year: 1873 Days

Day: 33.9 Hours

Environment

Temp: -85 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,579,176 km

• M1: 1,305,541 km (0.076 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3.08 AU - 3.5 AU

Year: 2088 Days

Day: 26.6 Hours

Environment

Temp: -99 °C

Axial Tilt: 31.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.42 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.7

Radius: 8.4

Gravity: 13.2 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 6.3 AU - 8.78 AU

Year: 7243 Days

Day: 13.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 84,579,176 km

• M1: 108,608 km (0.108 R)
• M2: 416,480 km (0.059 R)
• M3: 709,991 km (0.081 R)
• M4: 1,062,743 km (0.067 R)
• M5: 1,440,029 km (0.044 R)
• M6: 1,739,823 km (0.066 R)
• M7: 2,304,106 km (0.104 R)
• M8: 3,006,468 km (0.068 R)
• M9: 3,384,652 km (0.06 R)
• M10: 3,920,811 km (0.117 R)
• M11: 4,400,721 km (0.042 R)
• M12: 5,009,434 km (0.112 R)
• M13: 5,445,662 km (0.106 R)
• M14: 6,647,531 km (0.082 R)
• M15: 7,330,445 km (0.101 R)
• M16: 9,334,010 km (0.055 R)
• M17: 10,287,995 km (0.081 R)
• M18: 14,760,523 km (0.06 R)
• M19: 17,560,097 km (0.083 R)
• M20: 20,303,722 km (0.095 R)
• M21: 21,251,724 km (0.079 R)
• M22: 23,577,821 km (0.064 R)
• M23: 26,905,177 km (0.082 R)
• M24: 27,377,458 km (0.047 R)
• M25: 28,144,745 km (0.055 R)
• M26: 30,635,101 km (0.088 R)
• M27: 31,566,497 km (0.115 R)
• M28: 32,197,800 km (0.091 R)
• M29: 32,516,743 km (0.12 R)
• M30: 36,393,422 km (0.07 R)
• M31: 36,855,231 km (0.059 R)
• M32: 39,708,361 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.9

Radius: 11.4

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 7.66 AU - 10.38 AU

Year: 9477 Days

Day: 8.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,579,176 km

• M1: 141,819 km (0.089 R)
• M2: 739,313 km (0.088 R)
• M3: 1,966,464 km (0.118 R)
• M4: 2,731,657 km (0.043 R)
• M5: 3,121,360 km (0.102 R)
• M6: 7,078,971 km (0.12 R)
• M7: 7,887,398 km (0.111 R)
• M8: 8,296,848 km (0.089 R)
• M9: 9,010,729 km (0.101 R)
• M10: 14,944,827 km (0.058 R)
• M11: 16,164,648 km (0.082 R)
• M12: 16,715,168 km (0.028 R)
• M13: 17,912,101 km (0.09 R)
• M14: 19,472,257 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 512.3

Radius: 8

Gravity: 8 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 15.5 AU - 22.44 AU

Year: 28905 Days

Day: 21.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 84,579,176 km

• M1: 104,719 km (0.037 R)
• M2: 447,298 km (0.063 R)
• M3: 733,478 km (0.064 R)
• M4: 1,380,639 km (0.062 R)
• M5: 2,272,691 km (0.114 R)
• M6: 3,098,920 km (0.115 R)
• M7: 4,111,997 km (0.028 R)
• M8: 4,900,377 km (0.045 R)
• M9: 6,448,267 km (0.101 R)
• M10: 6,774,091 km (0.098 R)
• M11: 7,611,689 km (0.076 R)
• M12: 10,036,372 km (0.09 R)
• M13: 11,056,928 km (0.058 R)
• M14: 11,866,552 km (0.111 R)
• M15: 13,528,135 km (0.042 R)
• M16: 14,140,739 km (0.106 R)
• M17: 17,040,245 km (0.058 R)
• M18: 17,574,309 km (0.12 R)
• M19: 18,303,599 km (0.1 R)
• M20: 18,958,089 km (0.078 R)
• M21: 20,018,140 km (0.118 R)
• M22: 21,015,509 km (0.046 R)
• M23: 26,623,035 km (0.085 R)
• M24: 29,195,969 km (0.116 R)
• M25: 29,832,209 km (0.096 R)
• M26: 32,469,769 km (0.042 R)
• M27: 38,811,672 km (0.064 R)
• M28: 45,251,561 km (0.083 R)
• M29: 48,368,283 km (0.063 R)
• M30: 49,258,839 km (0.111 R)
• M31: 50,889,306 km (0.119 R)
• M32: 54,257,652 km (0.045 R)
• M33: 58,371,743 km (0.066 R)
• M34: 60,196,837 km (0.026 R)
• M35: 64,388,120 km (0.056 R)
• M36: 71,033,707 km (0.117 R)
• M37: 71,952,985 km (0.107 R)
• M38: 75,709,238 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440.6

Radius: 7.2

Gravity: 8.5 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 15.42 AU - 22.8 AU

Year: 29226 Days

Day: 22.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 84,579,176 km

• M1: 89,609 km (0.07 R)
• M2: 607,367 km (0.115 R)
• M3: 1,026,541 km (0.084 R)
• M4: 1,679,685 km (0.075 R)
• M5: 3,711,972 km (0.096 R)
• M6: 4,725,647 km (0.116 R)
• M7: 5,955,342 km (0.115 R)
• M8: 6,948,671 km (0.071 R)
• M9: 8,100,725 km (0.107 R)
• M10: 14,377,851 km (0.065 R)
• M11: 15,409,329 km (0.06 R)
• M12: 16,831,556 km (0.054 R)
• M13: 18,892,266 km (0.119 R)
• M14: 22,866,783 km (0.092 R)
• M15: 30,329,323 km (0.064 R)
• M16: 37,178,512 km (0.108 R)
• M17: 39,266,150 km (0.101 R)
• M18: 41,746,183 km (0.096 R)
• M19: 46,334,350 km (0.104 R)
• M20: 49,277,987 km (0.049 R)
• M21: 51,066,430 km (0.106 R)
• M22: 53,269,259 km (0.073 R)
• M23: 54,017,398 km (0.063 R)
• M24: 58,060,280 km (0.088 R)
• M25: 58,653,884 km (0.11 R)
• M26: 69,818,373 km (0.091 R)
• M27: 77,678,844 km (0.099 R)

Kuiper Belt

Range: 31.4 - 54.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 18,628 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit