🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.7

Radius: 10.2

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.53 AU - 0.55 AU

Year: 274 Days

Day: 13 Hours

Environment

Temp: -152 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,932,405 km

• M1: 126,859 km (0.088 R)
• M2: 458,069 km (0.105 R)
• M3: 777,909 km (0.041 R)
• M4: 1,123,929 km (0.104 R)
• M5: 1,472,193 km (0.027 R)
• M6: 1,940,434 km (0.079 R)
• M7: 2,263,117 km (0.058 R)
• M8: 2,597,019 km (0.119 R)
• M9: 2,954,708 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.4

Radius: 12.2

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.62 AU - 1 AU

Year: 503 Days

Day: 13.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,932,405 km

• M1: 152,590 km (0.115 R)
• M2: 533,167 km (0.063 R)
• M3: 1,011,282 km (0.099 R)
• M4: 1,461,870 km (0.089 R)
• M5: 1,903,334 km (0.091 R)
• M6: 2,335,073 km (0.049 R)
• M7: 2,936,457 km (0.085 R)
• M8: 3,475,009 km (0.117 R)
• M9: 3,912,732 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.1

Radius: 14.7

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.91 AU - 1.15 AU

Year: 722 Days

Day: 13.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,932,405 km

• M1: 182,809 km (0.079 R)
• M2: 713,731 km (0.073 R)
• M3: 1,258,567 km (0.065 R)
• M4: 1,804,749 km (0.047 R)
• M5: 2,338,364 km (0.106 R)
• M6: 2,867,642 km (0.088 R)
• M7: 3,326,907 km (0.117 R)
• M8: 4,063,228 km (0.106 R)
• M9: 4,959,319 km (0.1 R)
• M10: 6,525,310 km (0.096 R)
• M11: 7,122,355 km (0.076 R)
• M12: 8,024,430 km (0.111 R)
• M13: 8,632,545 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.5

Radius: 11

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.39 AU - 2.29 AU

Year: 1723 Days

Day: 9.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,932,405 km

• M1: 137,181 km (0.089 R)
• M2: 602,281 km (0.086 R)
• M3: 1,099,844 km (0.118 R)
• M4: 1,978,731 km (0.109 R)
• M5: 2,575,627 km (0.049 R)
• M6: 3,663,053 km (0.115 R)
• M7: 5,492,785 km (0.119 R)
• M8: 6,127,529 km (0.082 R)
• M9: 6,540,269 km (0.082 R)
• M10: 7,277,637 km (0.112 R)
• M11: 7,765,925 km (0.1 R)
• M12: 8,198,113 km (0.104 R)
• M13: 8,862,926 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250

Radius: 9.7

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 3.32 AU - 4.94 AU

Year: 5793 Days

Day: 10.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,932,405 km

• M1: 125,961 km (0.093 R)
• M2: 439,967 km (0.093 R)
• M3: 833,111 km (0.085 R)
• M4: 1,789,041 km (0.087 R)
• M5: 2,563,958 km (0.059 R)
• M6: 2,873,177 km (0.114 R)
• M7: 3,189,127 km (0.049 R)
• M8: 4,061,133 km (0.069 R)
• M9: 4,576,498 km (0.062 R)
• M10: 5,134,947 km (0.064 R)
• M11: 6,358,508 km (0.102 R)
• M12: 10,765,811 km (0.101 R)
• M13: 11,709,624 km (0.098 R)
• M14: 12,021,236 km (0.085 R)
• M15: 12,429,937 km (0.115 R)
• M16: 13,859,944 km (0.046 R)
• M17: 14,461,626 km (0.068 R)
• M18: 16,649,345 km (0.114 R)
• M19: 20,108,347 km (0.113 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 164.6

Radius: 7.9

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.71 AU - 6.83 AU

Year: 9567 Days

Day: 24.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,932,405 km

• M1: 98,286 km (0.043 R)
• M2: 496,815 km (0.118 R)
• M3: 1,134,550 km (0.11 R)
• M4: 1,999,675 km (0.072 R)
• M5: 3,408,288 km (0.09 R)
• M6: 4,036,899 km (0.062 R)
• M7: 4,869,560 km (0.08 R)
• M8: 5,326,582 km (0.114 R)
• M9: 6,515,286 km (0.068 R)
• M10: 7,308,305 km (0.103 R)
• M11: 8,090,402 km (0.059 R)
• M12: 8,350,553 km (0.065 R)
• M13: 12,656,429 km (0.055 R)
• M14: 17,931,848 km (0.106 R)
• M15: 18,825,396 km (0.091 R)
• M16: 19,548,103 km (0.097 R)
• M17: 19,815,584 km (0.109 R)
• M18: 20,425,944 km (0.078 R)
• M19: 22,187,608 km (0.032 R)
• M20: 25,213,076 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 745.8

Radius: 6.9

Gravity: 15.66 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 5.94 AU - 9.16 AU

Year: 14320 Days

Day: 24.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,932,405 km

• M1: 98,585 km (0.113 R)
• M2: 528,679 km (0.066 R)
• M3: 972,386 km (0.055 R)
• M4: 1,896,003 km (0.105 R)
• M5: 2,334,026 km (0.043 R)
• M6: 2,588,342 km (0.093 R)
• M7: 3,438,058 km (0.071 R)
• M8: 4,429,144 km (0.065 R)
• M9: 4,990,735 km (0.102 R)
• M10: 5,235,327 km (0.056 R)
• M11: 5,711,048 km (0.082 R)
• M12: 7,223,034 km (0.055 R)
• M13: 9,399,683 km (0.086 R)
• M14: 10,494,440 km (0.075 R)
• M15: 12,546,474 km (0.065 R)
• M16: 14,008,494 km (0.104 R)
• M17: 14,852,077 km (0.113 R)
• M18: 16,180,206 km (0.085 R)
• M19: 16,562,728 km (0.101 R)
• M20: 18,400,837 km (0.115 R)
• M21: 22,007,343 km (0.096 R)
• M22: 24,025,268 km (0.09 R)
• M23: 25,643,169 km (0.085 R)
• M24: 30,118,091 km (0.109 R)
• M25: 32,965,237 km (0.039 R)
• M26: 35,986,815 km (0.114 R)
• M27: 40,016,982 km (0.074 R)
• M28: 40,435,856 km (0.074 R)
• M29: 41,282,430 km (0.086 R)
• M30: 42,429,247 km (0.066 R)
• M31: 45,238,247 km (0.058 R)
• M32: 45,692,725 km (0.093 R)
• M33: 49,279,334 km (0.101 R)
• M34: 50,732,527 km (0.103 R)
• M35: 53,217,498 km (0.106 R)
• M36: 54,918,426 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 542.4

Radius: 5.3

Gravity: 19.31 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 8.67 AU - 11.95 AU

Year: 22851 Days

Day: 16.8 Hours

Environment

Temp: -242 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,932,405 km

• M1: 66,122 km (0.107 R)
• M2: 255,064 km (0.08 R)
• M3: 463,903 km (0.082 R)
• M4: 680,820 km (0.041 R)
• M5: 1,325,587 km (0.093 R)
• M6: 1,512,584 km (0.09 R)
• M7: 1,826,590 km (0.083 R)
• M8: 3,742,640 km (0.059 R)
• M9: 4,283,735 km (0.038 R)
• M10: 6,885,242 km (0.069 R)
• M11: 10,202,425 km (0.117 R)
• M12: 16,503,637 km (0.105 R)
• M13: 24,556,490 km (0.109 R)
• M14: 25,981,709 km (0.037 R)
• M15: 29,723,152 km (0.115 R)
• M16: 31,340,455 km (0.112 R)
• M17: 35,021,460 km (0.05 R)
• M18: 42,914,543 km (0.066 R)
• M19: 44,655,712 km (0.102 R)
• M20: 46,114,890 km (0.054 R)
• M21: 59,725,903 km (0.089 R)
• M22: 72,855,809 km (0.197 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 494 - 17,315 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit