🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.02 AU - 1.04 AU

Year: 394 Days

Day: 34.3 Hours

Environment

Temp: 10 °C

Axial Tilt: 18.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.08 AU - 1.52 AU

Year: 558 Days

Day: 25.1 Hours

Environment

Temp: -38 °C

Axial Tilt: 0.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.1 AU - 2.5 AU

Year: 1314 Days

Day: 27.4 Hours

Environment

Temp: -86 °C

Axial Tilt: 2.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 51,629,180 km

• M1: 17,503 km (0.084 R)
• M2: 319,691 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.7

Radius: 8.2

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.07 AU - 4.81 AU

Year: 3525 Days

Day: 7.2 Hours

Environment

Temp: -129 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,629,180 km

• M1: 102,026 km (0.084 R)
• M2: 561,890 km (0.083 R)
• M3: 875,896 km (0.104 R)
• M4: 1,363,884 km (0.111 R)
• M5: 1,876,406 km (0.042 R)
• M6: 2,164,681 km (0.115 R)
• M7: 2,645,339 km (0.052 R)
• M8: 3,958,210 km (0.119 R)
• M9: 4,265,783 km (0.112 R)
• M10: 4,523,241 km (0.118 R)
• M11: 4,929,100 km (0.113 R)
• M12: 5,633,856 km (0.092 R)
• M13: 6,628,382 km (0.074 R)
• M14: 7,767,121 km (0.111 R)
• M15: 8,618,184 km (0.037 R)
• M16: 8,892,097 km (0.099 R)
• M17: 9,529,833 km (0.076 R)
• M18: 10,350,228 km (0.101 R)
• M19: 10,856,766 km (0.111 R)
• M20: 14,778,923 km (0.074 R)
• M21: 15,825,660 km (0.062 R)
• M22: 18,629,273 km (0.119 R)
• M23: 19,145,984 km (0.051 R)
• M24: 19,613,328 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.8

Radius: 11.5

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 6.24 AU - 6.94 AU

Year: 6373 Days

Day: 5 Hours

Environment

Temp: -164 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,629,180 km

• M1: 144,362 km (0.117 R)
• M2: 551,119 km (0.073 R)
• M3: 1,074,562 km (0.1 R)
• M4: 1,489,247 km (0.034 R)
• M5: 2,233,795 km (0.066 R)
• M6: 3,496,850 km (0.09 R)
• M7: 4,728,190 km (0.069 R)
• M8: 6,432,708 km (0.086 R)
• M9: 6,889,281 km (0.102 R)
• M10: 8,808,472 km (0.106 R)
• M11: 9,506,047 km (0.117 R)
• M12: 10,572,979 km (0.098 R)
• M13: 11,160,450 km (0.065 R)
• M14: 15,031,594 km (0.118 R)
• M15: 15,649,284 km (0.031 R)
• M16: 16,869,553 km (0.075 R)
• M17: 18,221,469 km (0.089 R)
• M18: 18,640,792 km (0.094 R)
• M19: 20,085,309 km (0.117 R)
• M20: 20,759,098 km (0.107 R)
• M21: 22,629,819 km (0.046 R)
• M22: 23,033,285 km (0.105 R)
• M23: 32,657,814 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 110.9

Radius: 5.8

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 10.73 AU - 13.91 AU

Year: 16291 Days

Day: 23 Hours

Environment

Temp: -194 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,629,180 km

• M1: 72,106 km (0.052 R)
• M2: 255,812 km (0.056 R)
• M3: 571,165 km (0.044 R)
• M4: 1,841,849 km (0.065 R)
• M5: 2,037,224 km (0.087 R)
• M6: 2,313,681 km (0.104 R)
• M7: 2,596,570 km (0.054 R)
• M8: 2,882,452 km (0.088 R)
• M9: 3,231,613 km (0.062 R)
• M10: 6,343,698 km (0.089 R)
• M11: 6,970,363 km (0.109 R)
• M12: 9,848,776 km (0.051 R)
• M13: 10,497,283 km (0.095 R)
• M14: 13,657,986 km (0.046 R)
• M15: 14,522,512 km (0.102 R)
• M16: 19,902,351 km (0.108 R)
• M17: 22,792,582 km (0.109 R)
• M18: 32,008,708 km (0.115 R)
• M19: 33,426,447 km (0.065 R)
• M20: 34,674,542 km (0.03 R)
• M21: 34,991,241 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 224.1

Radius: 3.4

Gravity: 19.39 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 12.77 AU - 15.05 AU

Year: 19544 Days

Day: 21.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,629,180 km

• M1: 43,383 km (0.119 R)
• M2: 249,679 km (0.108 R)
• M3: 461,210 km (0.101 R)
• M4: 694,882 km (0.083 R)
• M5: 877,691 km (0.082 R)
• M6: 1,186,910 km (0.07 R)
• M7: 2,895,317 km (0.118 R)
• M8: 3,809,959 km (0.042 R)
• M9: 4,347,314 km (0.094 R)
• M10: 5,162,473 km (0.075 R)
• M11: 5,536,168 km (0.118 R)
• M12: 5,747,401 km (0.099 R)
• M13: 6,568,394 km (0.099 R)
• M14: 7,549,756 km (0.115 R)
• M15: 10,799,620 km (0.109 R)
• M16: 12,941,413 km (0.09 R)
• M17: 15,627,293 km (0.108 R)
• M18: 18,350,273 km (0.096 R)
• M19: 19,946,034 km (0.062 R)
• M20: 21,116,487 km (0.101 R)
• M21: 24,711,773 km (0.089 R)
• M22: 28,694,218 km (0.027 R)
• M23: 33,545,976 km (0.045 R)
• M24: 35,317,365 km (0.065 R)
• M25: 38,660,877 km (0.074 R)
• M26: 39,431,605 km (0.118 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 11,127 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit