🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.72 AU - 1.1 AU

Year: 361 Days

Day: 29.5 Hours

Environment

Temp: -37 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.97 AU - 1.45 AU

Year: 554 Days

Day: 14.1 Hours

Environment

Temp: -60 °C

Axial Tilt: 20.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.35 AU - 1.39 AU

Year: 667 Days

Day: 41.1 Hours

Environment

Temp: -73 °C

Axial Tilt: 14.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.66 AU - 2.56 AU

Year: 1276 Days

Day: 14.2 Hours

Environment

Temp: -110 °C

Axial Tilt: 6.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.59 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.3

Radius: 12.4

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.75 AU - 3.39 AU

Year: 2239 Days

Day: 13.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 83,155,124 km

• M1: 154,834 km (0.062 R)
• M2: 593,305 km (0.078 R)
• M3: 1,411,755 km (0.105 R)
• M4: 2,402,691 km (0.106 R)
• M5: 3,216,803 km (0.058 R)
• M6: 3,653,030 km (0.084 R)
• M7: 5,043,991 km (0.082 R)
• M8: 6,049,588 km (0.085 R)
• M9: 8,557,746 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.2

Radius: 13.8

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.1 AU - 3.58 AU

Year: 2541 Days

Day: 13.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,155,124 km

• M1: 173,384 km (0.119 R)
• M2: 625,469 km (0.088 R)
• M3: 1,378,096 km (0.094 R)
• M4: 1,983,518 km (0.071 R)
• M5: 2,467,766 km (0.114 R)
• M6: 3,084,259 km (0.09 R)
• M7: 4,218,510 km (0.094 R)
• M8: 5,553,971 km (0.036 R)
• M9: 6,200,084 km (0.047 R)
• M10: 6,895,863 km (0.116 R)
• M11: 7,593,438 km (0.041 R)
• M12: 8,768,679 km (0.107 R)
• M13: 10,032,033 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.1

Radius: 9

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.65 AU - 4.39 AU

Year: 2749 Days

Day: 14 Hours

Environment

Temp: -145 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 83,155,124 km

• M1: 112,049 km (0.095 R)
• M2: 731,234 km (0.115 R)
• M3: 1,099,993 km (0.104 R)
• M4: 1,480,121 km (0.118 R)
• M5: 1,833,621 km (0.113 R)
• M6: 2,126,534 km (0.058 R)
• M7: 3,527,667 km (0.047 R)
• M8: 4,321,284 km (0.092 R)
• M9: 5,196,581 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.9

Radius: 14.2

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 7.69 AU - 11.51 AU

Year: 12381 Days

Day: 7.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 83,155,124 km

• M1: 176,525 km (0.105 R)
• M2: 655,538 km (0.042 R)
• M3: 1,561,203 km (0.111 R)
• M4: 2,187,420 km (0.103 R)
• M5: 2,641,150 km (0.113 R)
• M6: 4,201,307 km (0.093 R)
• M7: 5,429,056 km (0.116 R)
• M8: 6,018,622 km (0.067 R)
• M9: 7,576,085 km (0.086 R)
• M10: 11,034,638 km (0.055 R)
• M11: 12,686,498 km (0.088 R)
• M12: 13,292,668 km (0.095 R)
• M13: 14,432,455 km (0.083 R)
• M14: 15,093,378 km (0.061 R)
• M15: 17,271,523 km (0.119 R)
• M16: 18,705,867 km (0.054 R)
• M17: 20,464,241 km (0.083 R)
• M18: 22,330,624 km (0.117 R)
• M19: 26,497,672 km (0.051 R)
• M20: 27,489,656 km (0.071 R)
• M21: 33,737,461 km (0.093 R)
• M22: 36,578,923 km (0.098 R)
• M23: 37,067,510 km (0.059 R)
• M24: 39,448,211 km (0.08 R)
• M25: 40,610,736 km (0.073 R)
• M26: 42,330,213 km (0.106 R)
• M27: 43,412,105 km (0.116 R)
• M28: 49,100,415 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 519.4

Radius: 3

Gravity: 57.71 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 14.72 AU - 16.96 AU

Year: 26241 Days

Day: 15.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 83,155,124 km

• M1: 37,848 km (0.097 R)
• M2: 188,194 km (0.091 R)
• M3: 851,960 km (0.062 R)
• M4: 959,072 km (0.109 R)
• M5: 1,157,888 km (0.089 R)
• M6: 1,464,713 km (0.119 R)
• M7: 2,281,517 km (0.088 R)
• M8: 2,513,543 km (0.103 R)
• M9: 2,812,290 km (0.115 R)
• M10: 4,046,024 km (0.08 R)
• M11: 4,526,532 km (0.119 R)
• M12: 4,634,243 km (0.079 R)
• M13: 5,558,907 km (0.083 R)
• M14: 5,978,081 km (0.112 R)
• M15: 7,312,494 km (0.118 R)
• M16: 8,340,530 km (0.064 R)
• M17: 9,001,603 km (0.11 R)
• M18: 12,064,769 km (0.112 R)
• M19: 14,712,502 km (0.105 R)
• M20: 14,949,166 km (0.05 R)
• M21: 15,430,123 km (0.088 R)
• M22: 17,811,870 km (0.08 R)
• M23: 18,443,323 km (0.12 R)
• M24: 22,134,052 km (0.1 R)
• M25: 22,237,275 km (0.113 R)
• M26: 22,444,767 km (0.07 R)
• M27: 28,546,714 km (0.053 R)
• M28: 29,911,945 km (0.118 R)
• M29: 31,190,258 km (0.105 R)
• M30: 35,950,911 km (0.103 R)
• M31: 39,178,336 km (0.098 R)
• M32: 46,201,956 km (0.05 R)
• M33: 62,260,390 km (0.087 R)
• M34: 74,266,217 km (0.063 R)
• M35: 79,470,578 km (0.092 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 475 - 13,767 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit