🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.54 AU - 0.72 AU

Year: 220 Days

Day: 13.8 Hours

Environment

Temp: 2 °C

Axial Tilt: 41.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.77 AU - 1.19 AU

Year: 427 Days

Day: 43.3 Hours

Environment

Temp: -66 °C

Axial Tilt: 23.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 55,918,580 km

• M1: 432,637 km (0.112 R)
• M2: 487,390 km (0.119 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.11 AU - 2.69 AU

Year: 1635 Days

Day: 43.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.9

Radius: 10.2

Gravity: 9.53 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.45 AU - 5.27 AU

Year: 4003 Days

Day: 5.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,918,580 km

• M1: 126,859 km (0.102 R)
• M2: 642,373 km (0.106 R)
• M3: 1,416,841 km (0.09 R)
• M4: 1,975,889 km (0.095 R)
• M5: 2,315,326 km (0.027 R)
• M6: 2,676,605 km (0.055 R)
• M7: 4,017,301 km (0.075 R)
• M8: 5,790,036 km (0.119 R)
• M9: 6,751,053 km (0.12 R)
• M10: 7,082,711 km (0.104 R)
• M11: 8,596,941 km (0.109 R)
• M12: 9,186,656 km (0.108 R)
• M13: 9,719,523 km (0.064 R)
• M14: 10,535,131 km (0.081 R)
• M15: 12,499,650 km (0.087 R)
• M16: 14,422,581 km (0.058 R)
• M17: 16,179,309 km (0.042 R)
• M18: 20,044,918 km (0.108 R)
• M19: 21,152,541 km (0.115 R)
• M20: 21,649,804 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.4

Radius: 12.8

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.85 AU - 6.89 AU

Year: 6253 Days

Day: 11.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,918,580 km

• M1: 159,172 km (0.043 R)
• M2: 586,573 km (0.11 R)
• M3: 1,204,263 km (0.081 R)
• M4: 1,693,897 km (0.092 R)
• M5: 2,364,394 km (0.058 R)
• M6: 2,936,307 km (0.032 R)
• M7: 3,347,402 km (0.091 R)
• M8: 3,842,122 km (0.088 R)
• M9: 5,171,000 km (0.102 R)
• M10: 6,172,707 km (0.084 R)
• M11: 7,264,622 km (0.039 R)
• M12: 8,288,620 km (0.09 R)
• M13: 8,835,699 km (0.095 R)
• M14: 10,176,844 km (0.088 R)
• M15: 17,043,087 km (0.073 R)
• M16: 27,083,348 km (0.089 R)
• M17: 28,906,647 km (0.11 R)
• M18: 29,532,265 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.5

Radius: 13.8

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 7.82 AU - 7.92 AU

Year: 9708 Days

Day: 6.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,918,580 km

• M1: 174,581 km (0.111 R)
• M2: 877,242 km (0.071 R)
• M3: 1,623,436 km (0.083 R)
• M4: 2,523,566 km (0.092 R)
• M5: 3,377,621 km (0.083 R)
• M6: 5,530,783 km (0.105 R)
• M7: 6,972,757 km (0.107 R)
• M8: 12,132,387 km (0.09 R)
• M9: 15,149,328 km (0.056 R)
• M10: 15,975,407 km (0.093 R)
• M11: 17,215,424 km (0.103 R)
• M12: 19,704,583 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 333.8

Radius: 4

Gravity: 20.86 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 9.69 AU - 14.11 AU

Year: 18050 Days

Day: 18.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 55,918,580 km

• M1: 50,564 km (0.116 R)
• M2: 184,155 km (0.084 R)
• M3: 483,351 km (0.083 R)
• M4: 694,583 km (0.112 R)
• M5: 1,762,861 km (0.048 R)
• M6: 2,265,061 km (0.083 R)
• M7: 2,766,513 km (0.03 R)
• M8: 3,545,470 km (0.12 R)
• M9: 4,368,856 km (0.075 R)
• M10: 5,140,781 km (0.068 R)
• M11: 6,542,513 km (0.053 R)
• M12: 6,703,481 km (0.103 R)
• M13: 7,373,978 km (0.072 R)
• M14: 7,504,428 km (0.095 R)
• M15: 7,636,523 km (0.098 R)
• M16: 9,193,687 km (0.052 R)
• M17: 10,287,696 km (0.101 R)
• M18: 10,505,510 km (0.115 R)
• M19: 11,234,800 km (0.079 R)
• M20: 15,534,841 km (0.105 R)
• M21: 17,385,217 km (0.104 R)
• M22: 23,151,168 km (0.098 R)
• M23: 24,189,676 km (0.058 R)
• M24: 24,574,891 km (0.03 R)
• M25: 25,655,287 km (0.108 R)
• M26: 26,358,995 km (0.08 R)
• M27: 27,595,272 km (0.119 R)
• M28: 28,977,556 km (0.094 R)
• M29: 30,517,218 km (0.096 R)
• M30: 33,758,256 km (0.11 R)
• M31: 35,214,890 km (0.065 R)
• M32: 38,382,924 km (0.099 R)
• M33: 41,598,082 km (0.049 R)
• M34: 44,410,821 km (0.06 R)
• M35: 45,133,378 km (0.095 R)
• M36: 45,570,653 km (0.114 R)
• M37: 46,750,382 km (0.079 R)
• M38: 48,253,392 km (0.104 R)
• M39: 55,084,778 km (0.118 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 19,908 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit