🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.9

Radius: 14.3

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.87 AU - 0.89 AU

Year: 550 Days

Day: 11.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 13,918,322 km

• M1: 177,872 km (0.108 R)
• M2: 667,805 km (0.055 R)
• M3: 1,257,819 km (0.069 R)
• M4: 1,747,902 km (0.05 R)
• M5: 2,239,630 km (0.118 R)
• M6: 3,548,312 km (0.094 R)
• M7: 4,002,042 km (0.063 R)
• M8: 5,302,347 km (0.079 R)
• M9: 6,315,274 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.6

Radius: 11.8

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.07 AU - 1.23 AU

Year: 822 Days

Day: 9.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 13,918,322 km

• M1: 147,055 km (0.06 R)
• M2: 547,977 km (0.096 R)
• M3: 1,099,694 km (0.094 R)
• M4: 1,627,924 km (0.117 R)
• M5: 2,490,805 km (0.088 R)
• M6: 2,949,472 km (0.037 R)
• M7: 4,328,465 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.4

Radius: 14.5

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.04 AU - 1.7 AU

Year: 1069 Days

Day: 6.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 13,918,322 km

• M1: 180,265 km (0.104 R)
• M2: 834,607 km (0.068 R)
• M3: 1,394,701 km (0.108 R)
• M4: 1,885,980 km (0.119 R)
• M5: 2,913,269 km (0.117 R)
• M6: 3,734,262 km (0.113 R)
• M7: 4,200,110 km (0.118 R)
• M8: 5,581,197 km (0.097 R)
• M9: 6,193,651 km (0.075 R)
• M10: 7,632,334 km (0.108 R)
• M11: 8,642,269 km (0.116 R)
• M12: 9,404,021 km (0.08 R)
• M13: 10,532,288 km (0.027 R)
• M14: 11,333,385 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.7

Radius: 11.2

Gravity: 7.97 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.24 AU - 1.78 AU

Year: 1237 Days

Day: 9.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 13,918,322 km

• M1: 139,724 km (0.113 R)
• M2: 503,696 km (0.101 R)
• M3: 1,164,919 km (0.037 R)
• M4: 1,759,869 km (0.078 R)
• M5: 2,374,417 km (0.072 R)
• M6: 2,732,854 km (0.114 R)
• M7: 3,201,993 km (0.082 R)
• M8: 4,303,632 km (0.097 R)
• M9: 5,043,692 km (0.098 R)
• M10: 5,686,365 km (0.097 R)
• M11: 6,239,278 km (0.069 R)
• M12: 6,802,365 km (0.091 R)
• M13: 7,862,266 km (0.112 R)
• M14: 8,432,084 km (0.12 R)
• M15: 9,463,711 km (0.113 R)
• M16: 10,241,321 km (0.109 R)
• M17: 10,748,607 km (0.091 R)
• M18: 11,272,499 km (0.109 R)
• M19: 12,034,700 km (0.077 R)
• M20: 12,869,606 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.1

Radius: 12

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.36 AU - 1.92 AU

Year: 1401 Days

Day: 14.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 13,918,322 km

• M1: 155,133 km (0.089 R)
• M2: 625,020 km (0.098 R)
• M3: 1,217,577 km (0.041 R)
• M4: 1,670,410 km (0.08 R)
• M5: 3,705,838 km (0.111 R)
• M6: 4,889,008 km (0.077 R)
• M7: 5,334,959 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.1

Radius: 14

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.93 AU - 2.19 AU

Year: 1972 Days

Day: 10.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 13,918,322 km

• M1: 174,132 km (0.108 R)
• M2: 723,605 km (0.109 R)
• M3: 1,278,015 km (0.093 R)
• M4: 1,714,541 km (0.079 R)
• M5: 3,268,414 km (0.113 R)
• M6: 3,716,460 km (0.079 R)
• M7: 4,425,554 km (0.098 R)
• M8: 4,954,681 km (0.069 R)
• M9: 5,914,352 km (0.054 R)
• M10: 6,719,787 km (0.067 R)
• M11: 8,017,698 km (0.082 R)
• M12: 9,138,186 km (0.093 R)
• M13: 10,433,554 km (0.107 R)
• M14: 10,992,302 km (0.068 R)
• M15: 12,539,443 km (0.118 R)
• M16: 13,473,831 km (0.083 R)
• M17: 13,913,799 km (0.102 R)
• M18: 14,683,629 km (0.072 R)
• M19: 15,291,296 km (0.068 R)
• M20: 16,407,595 km (0.115 R)
• M21: 17,011,372 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.3

Radius: 11.3

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.8 AU - 2.94 AU

Year: 2433 Days

Day: 5.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 13,918,322 km

• M1: 140,921 km (0.117 R)
• M2: 653,892 km (0.084 R)
• M3: 1,083,238 km (0.11 R)
• M4: 1,438,384 km (0.104 R)
• M5: 2,203,427 km (0.052 R)
• M6: 2,884,696 km (0.107 R)
• M7: 4,415,680 km (0.081 R)
• M8: 5,050,873 km (0.079 R)
• M9: 5,655,996 km (0.117 R)
• M10: 7,063,263 km (0.093 R)
• M11: 8,512,568 km (0.1 R)
• M12: 9,057,702 km (0.094 R)
• M13: 10,018,121 km (0.074 R)
• M14: 10,488,905 km (0.071 R)
• M15: 11,115,870 km (0.101 R)
• M16: 13,549,678 km (0.102 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 236 - 16,557 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit