🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.4 AU - 0.64 AU

Year: 242 Days

Day: 47 Hours

Environment

Temp: -108 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.7

Radius: 8.9

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.63 AU - 0.77 AU

Year: 378 Days

Day: 5.6 Hours

Environment

Temp: -131 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,469,534 km

• M1: 131,646 km (0.106 R)
• M2: 415,882 km (0.085 R)
• M3: 721,211 km (0.108 R)
• M4: 1,030,281 km (0.101 R)
• M5: 1,316,012 km (0.12 R)
• M6: 1,608,476 km (0.103 R)
• M7: 1,998,777 km (0.091 R)
• M8: 2,336,569 km (0.052 R)
• M9: 2,702,635 km (0.041 R)
• M10: 3,301,924 km (0.056 R)
• M11: 3,586,310 km (0.055 R)
• M12: 4,101,375 km (0.101 R)
• M13: 4,390,398 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.1

Radius: 12.8

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.57 AU - 1.75 AU

Year: 1381 Days

Day: 11.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,469,534 km

• M1: 159,172 km (0.096 R)
• M2: 562,787 km (0.04 R)
• M3: 1,007,392 km (0.091 R)
• M4: 1,853,817 km (0.079 R)
• M5: 2,296,926 km (0.034 R)
• M6: 3,329,600 km (0.068 R)
• M7: 3,783,330 km (0.083 R)
• M8: 4,365,116 km (0.107 R)
• M9: 5,521,957 km (0.063 R)
• M10: 6,545,356 km (0.096 R)
• M11: 8,326,169 km (0.102 R)
• M12: 9,110,510 km (0.085 R)
• M13: 10,222,023 km (0.078 R)
• M14: 11,055,731 km (0.033 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.4

Radius: 8.4

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.82 AU - 3.28 AU

Year: 3439 Days

Day: 7.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 159.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,469,534 km

• M1: 104,419 km (0.109 R)
• M2: 379,231 km (0.105 R)
• M3: 671,545 km (0.084 R)
• M4: 2,101,700 km (0.097 R)
• M5: 3,742,490 km (0.079 R)
• M6: 4,686,303 km (0.06 R)
• M7: 5,299,654 km (0.113 R)
• M8: 6,045,699 km (0.11 R)
• M9: 10,620,701 km (0.093 R)
• M10: 12,317,290 km (0.076 R)
• M11: 13,902,579 km (0.066 R)
• M12: 14,573,077 km (0.104 R)
• M13: 15,670,377 km (0.082 R)
• M14: 18,253,783 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.7

Radius: 10.8

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 4.19 AU - 6.37 AU

Year: 7834 Days

Day: 11.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,469,534 km

• M1: 134,488 km (0.077 R)
• M2: 864,526 km (0.118 R)
• M3: 1,385,127 km (0.116 R)
• M4: 2,860,461 km (0.082 R)
• M5: 3,198,253 km (0.077 R)
• M6: 3,783,480 km (0.034 R)
• M7: 5,099,043 km (0.071 R)
• M8: 6,157,897 km (0.111 R)
• M9: 7,094,230 km (0.044 R)
• M10: 8,154,730 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696

Radius: 14.2

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 5.05 AU - 6.91 AU

Year: 9442 Days

Day: 7.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,469,534 km

• M1: 176,675 km (0.083 R)
• M2: 709,842 km (0.066 R)
• M3: 1,399,338 km (0.041 R)
• M4: 3,575,240 km (0.107 R)
• M5: 4,139,223 km (0.088 R)
• M6: 4,586,372 km (0.041 R)
• M7: 5,159,481 km (0.061 R)
• M8: 5,814,271 km (0.109 R)
• M9: 8,509,725 km (0.115 R)
• M10: 9,191,144 km (0.091 R)
• M11: 10,206,165 km (0.105 R)
• M12: 13,219,515 km (0.054 R)
• M13: 13,948,356 km (0.113 R)
• M14: 15,486,671 km (0.09 R)
• M15: 19,127,434 km (0.053 R)
• M16: 19,824,411 km (0.062 R)
• M17: 22,697,438 km (0.117 R)
• M18: 23,655,014 km (0.099 R)
• M19: 27,268,401 km (0.115 R)
• M20: 31,554,828 km (0.085 R)
• M21: 35,570,185 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 508.7

Radius: 6.7

Gravity: 11.33 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.8 AU - 9.08 AU

Year: 14446 Days

Day: 17.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,469,534 km

• M1: 83,326 km (0.117 R)
• M2: 350,657 km (0.072 R)
• M3: 705,803 km (0.107 R)
• M4: 1,102,387 km (0.094 R)
• M5: 2,377,559 km (0.097 R)
• M6: 2,843,556 km (0.115 R)
• M7: 3,984,988 km (0.061 R)
• M8: 4,610,906 km (0.098 R)
• M9: 6,324,100 km (0.098 R)
• M10: 13,540,552 km (0.096 R)
• M11: 16,592,648 km (0.095 R)
• M12: 16,966,194 km (0.083 R)
• M13: 18,837,513 km (0.102 R)
• M14: 19,906,689 km (0.096 R)
• M15: 25,074,548 km (0.057 R)
• M16: 26,978,181 km (0.071 R)
• M17: 27,390,921 km (0.097 R)
• M18: 40,325,452 km (0.058 R)
• M19: 40,865,052 km (0.089 R)
• M20: 42,651,849 km (0.079 R)
• M21: 44,921,697 km (0.098 R)
• M22: 46,676,032 km (0.075 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: 244 - 12,832 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit