🌌 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: 877.5

Radius: 13.8

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.87 AU - 0.89 AU

Year: 560 Days

Day: 6.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,584,400 km

• M1: 173,833 km (0.104 R)
• M2: 648,208 km (0.116 R)
• M3: 1,080,396 km (0.096 R)
• M4: 1,529,189 km (0.097 R)
• M5: 2,024,957 km (0.102 R)
• M6: 2,534,038 km (0.073 R)
• M7: 3,300,877 km (0.04 R)
• M8: 5,858,103 km (0.083 R)
• M9: 6,496,437 km (0.116 R)
• M10: 7,441,596 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173

Radius: 12.5

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.91 AU - 0.97 AU

Year: 618 Days

Day: 7.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,584,400 km

• M1: 156,779 km (0.084 R)
• M2: 584,180 km (0.079 R)
• M3: 1,396,197 km (0.086 R)
• M4: 2,049,790 km (0.115 R)
• M5: 2,545,258 km (0.104 R)
• M6: 3,028,908 km (0.119 R)
• M7: 3,417,863 km (0.096 R)
• M8: 4,323,678 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.2

Radius: 8.6

Gravity: 11.58 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.25 AU - 1.45 AU

Year: 1064 Days

Day: 11.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,584,400 km

• M1: 106,962 km (0.1 R)
• M2: 679,324 km (0.094 R)
• M3: 1,254,378 km (0.091 R)
• M4: 1,525,599 km (0.094 R)
• M5: 2,406,431 km (0.104 R)
• M6: 2,924,638 km (0.099 R)
• M7: 3,608,151 km (0.071 R)
• M8: 4,183,205 km (0.12 R)
• M9: 4,556,751 km (0.118 R)
• M10: 4,856,246 km (0.109 R)
• M11: 5,350,667 km (0.089 R)
• M12: 6,211,004 km (0.114 R)
• M13: 7,110,985 km (0.081 R)
• M14: 9,315,908 km (0.111 R)
• M15: 10,111,021 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.6

Radius: 11.6

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.25 AU - 4.53 AU

Year: 5204 Days

Day: 13.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 70,584,400 km

• M1: 147,204 km (0.094 R)
• M2: 537,505 km (0.107 R)
• M3: 969,095 km (0.064 R)
• M4: 1,396,496 km (0.109 R)
• M5: 2,472,254 km (0.108 R)
• M6: 3,354,134 km (0.074 R)
• M7: 4,083,573 km (0.091 R)
• M8: 5,055,660 km (0.065 R)
• M9: 5,826,687 km (0.113 R)
• M10: 6,339,210 km (0.084 R)
• M11: 7,272,102 km (0.117 R)
• M12: 7,981,944 km (0.029 R)
• M13: 9,892,159 km (0.105 R)
• M14: 10,576,270 km (0.076 R)
• M15: 12,925,406 km (0.097 R)
• M16: 17,039,945 km (0.112 R)
• M17: 20,319,430 km (0.093 R)
• M18: 21,954,535 km (0.049 R)
• M19: 22,337,954 km (0.096 R)
• M20: 23,356,117 km (0.105 R)
• M21: 25,484,895 km (0.112 R)
• M22: 26,944,820 km (0.088 R)
• M23: 29,562,933 km (0.092 R)
• M24: 30,030,875 km (0.092 R)
• M25: 33,345,066 km (0.083 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 136.8

Radius: 7.6

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 5.91 AU - 8.19 AU

Year: 12696 Days

Day: 18.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,584,400 km

• M1: 95,443 km (0.096 R)
• M2: 333,753 km (0.104 R)
• M3: 1,108,670 km (0.119 R)
• M4: 1,821,952 km (0.03 R)
• M5: 2,067,592 km (0.047 R)
• M6: 2,809,448 km (0.118 R)
• M7: 3,180,002 km (0.107 R)
• M8: 6,618,808 km (0.072 R)
• M9: 7,456,706 km (0.102 R)
• M10: 14,759,476 km (0.118 R)
• M11: 17,567,278 km (0.091 R)
• M12: 18,089,375 km (0.059 R)
• M13: 21,963,660 km (0.036 R)
• M14: 23,973,956 km (0.098 R)
• M15: 24,293,797 km (0.084 R)
• M16: 26,103,931 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 257.7

Radius: 3.6

Gravity: 19.88 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 6.02 AU - 8.24 AU

Year: 12913 Days

Day: 18 Hours

Environment

Temp: -230 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,584,400 km

• M1: 47,572 km (0.117 R)
• M2: 429,795 km (0.086 R)
• M3: 765,193 km (0.1 R)
• M4: 964,009 km (0.115 R)
• M5: 1,413,251 km (0.104 R)
• M6: 2,120,849 km (0.08 R)
• M7: 2,293,784 km (0.119 R)
• M8: 2,687,675 km (0.064 R)
• M9: 3,303,570 km (0.116 R)
• M10: 3,754,907 km (0.034 R)
• M11: 6,009,795 km (0.043 R)
• M12: 8,765,986 km (0.086 R)
• M13: 8,986,942 km (0.053 R)
• M14: 11,197,401 km (0.079 R)
• M15: 11,405,192 km (0.037 R)
• M16: 11,989,970 km (0.108 R)
• M17: 15,279,627 km (0.093 R)
• M18: 15,407,085 km (0.068 R)
• M19: 18,179,732 km (0.096 R)
• M20: 18,322,897 km (0.028 R)
• M21: 20,330,051 km (0.104 R)
• M22: 20,639,270 km (0.114 R)
• M23: 21,666,260 km (0.072 R)
• M24: 26,572,471 km (0.074 R)
• M25: 34,088,268 km (0.091 R)
• M26: 35,408,769 km (0.115 R)
• M27: 39,215,287 km (0.084 R)
• M28: 40,909,333 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 581.7

Radius: 6.5

Gravity: 13.77 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 7.63 AU - 11.07 AU

Year: 19391 Days

Day: 21.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,584,400 km

• M1: 80,783 km (0.074 R)
• M2: 300,243 km (0.034 R)
• M3: 556,803 km (0.046 R)
• M4: 821,292 km (0.07 R)
• M5: 1,105,079 km (0.08 R)
• M6: 1,422,825 km (0.095 R)
• M7: 2,348,088 km (0.096 R)
• M8: 3,509,267 km (0.069 R)
• M9: 6,293,732 km (0.054 R)
• M10: 7,447,580 km (0.068 R)
• M11: 8,736,067 km (0.118 R)
• M12: 11,620,015 km (0.09 R)
• M13: 12,462,400 km (0.112 R)
• M14: 13,836,905 km (0.103 R)
• M15: 15,771,056 km (0.092 R)
• M16: 18,304,197 km (0.078 R)
• M17: 28,189,774 km (0.116 R)
• M18: 29,351,102 km (0.057 R)
• M19: 30,665,170 km (0.066 R)
• M20: 37,410,688 km (0.063 R)
• M21: 51,821,301 km (0.099 R)
• M22: 53,737,500 km (0.072 R)
• M23: 58,081,074 km (0.113 R)
• M24: 61,488,315 km (0.044 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 516 - 15,582 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit