🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884

Radius: 11.5

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.79 AU - 1.31 AU

Year: 743 Days

Day: 10.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,222,231 km

• M1: 143,165 km (0.088 R)
• M2: 681,418 km (0.059 R)
• M3: 1,217,577 km (0.12 R)
• M4: 2,007,304 km (0.05 R)
• M5: 2,369,780 km (0.068 R)
• M6: 2,860,910 km (0.098 R)
• M7: 3,323,765 km (0.096 R)
• M8: 3,703,445 km (0.091 R)
• M9: 4,206,991 km (0.117 R)
• M10: 4,618,535 km (0.08 R)
• M11: 5,776,871 km (0.109 R)
• M12: 6,585,597 km (0.078 R)
• M13: 7,051,296 km (0.097 R)
• M14: 8,897,483 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.8

Radius: 12.8

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.97 AU - 1.21 AU

Year: 786 Days

Day: 11 Hours

Environment

Temp: -176 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,222,231 km

• M1: 163,660 km (0.105 R)
• M2: 605,273 km (0.086 R)
• M3: 1,115,851 km (0.094 R)
• M4: 2,334,924 km (0.071 R)
• M5: 2,880,806 km (0.094 R)
• M6: 3,279,335 km (0.109 R)
• M7: 3,900,016 km (0.065 R)
• M8: 4,582,931 km (0.115 R)
• M9: 5,146,316 km (0.079 R)
• M10: 5,933,351 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.9

Radius: 11.7

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.87 AU - 1.33 AU

Year: 796 Days

Day: 15 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,222,231 km

• M1: 145,559 km (0.087 R)
• M2: 720,164 km (0.07 R)
• M3: 1,217,427 km (0.096 R)
• M4: 1,720,974 km (0.076 R)
• M5: 2,284,210 km (0.086 R)
• M6: 2,657,905 km (0.095 R)
• M7: 3,108,345 km (0.09 R)
• M8: 3,492,213 km (0.118 R)
• M9: 5,169,953 km (0.111 R)
• M10: 6,044,352 km (0.109 R)
• M11: 6,546,852 km (0.097 R)
• M12: 7,056,382 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769

Radius: 14.2

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.62 AU - 2.1 AU

Year: 1751 Days

Day: 11.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 86.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,222,231 km

• M1: 176,675 km (0.098 R)
• M2: 644,767 km (0.059 R)
• M3: 1,410,858 km (0.082 R)
• M4: 2,898,309 km (0.092 R)
• M5: 3,675,620 km (0.117 R)
• M6: 5,088,123 km (0.086 R)
• M7: 6,653,964 km (0.079 R)
• M8: 7,269,110 km (0.101 R)
• M9: 8,399,322 km (0.074 R)
• M10: 9,477,474 km (0.064 R)
• M11: 10,153,656 km (0.057 R)
• M12: 10,934,408 km (0.085 R)
• M13: 11,602,661 km (0.104 R)
• M14: 12,898,777 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.3

Radius: 11

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.84 AU - 3.94 AU

Year: 5296 Days

Day: 8.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,222,231 km

• M1: 143,614 km (0.076 R)
• M2: 541,095 km (0.086 R)
• M3: 1,300,305 km (0.119 R)
• M4: 1,819,110 km (0.082 R)
• M5: 2,169,319 km (0.076 R)
• M6: 2,739,885 km (0.066 R)
• M7: 3,296,090 km (0.095 R)
• M8: 3,802,179 km (0.049 R)
• M9: 4,292,711 km (0.049 R)
• M10: 4,682,114 km (0.111 R)
• M11: 5,938,736 km (0.116 R)
• M12: 7,505,325 km (0.069 R)
• M13: 8,740,555 km (0.089 R)
• M14: 9,106,770 km (0.043 R)
• M15: 12,278,993 km (0.063 R)
• M16: 14,038,264 km (0.073 R)
• M17: 14,541,212 km (0.102 R)
• M18: 15,213,056 km (0.025 R)
• M19: 16,342,071 km (0.032 R)
• M20: 18,585,591 km (0.097 R)
• M21: 19,500,681 km (0.115 R)
• M22: 20,638,223 km (0.078 R)
• M23: 21,752,727 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.5

Radius: 13.7

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.5 AU - 4.82 AU

Year: 5857 Days

Day: 7.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,222,231 km

• M1: 172,486 km (0.088 R)
• M2: 720,463 km (0.098 R)
• M3: 1,251,536 km (0.083 R)
• M4: 1,799,214 km (0.028 R)
• M5: 2,359,906 km (0.113 R)
• M6: 2,884,546 km (0.055 R)
• M7: 3,544,123 km (0.108 R)
• M8: 5,117,743 km (0.08 R)
• M9: 6,200,832 km (0.082 R)
• M10: 7,179,351 km (0.11 R)
• M11: 8,570,911 km (0.063 R)
• M12: 9,036,160 km (0.112 R)
• M13: 9,556,013 km (0.058 R)
• M14: 10,056,717 km (0.05 R)
• M15: 10,615,465 km (0.106 R)
• M16: 12,237,255 km (0.113 R)
• M17: 13,107,466 km (0.109 R)
• M18: 14,364,986 km (0.066 R)
• M19: 16,074,890 km (0.074 R)
• M20: 17,974,783 km (0.109 R)
• M21: 18,620,297 km (0.095 R)
• M22: 21,489,285 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253.4

Radius: 6.3

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5 AU - 8.12 AU

Year: 11598 Days

Day: 19.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,222,231 km

• M1: 82,279 km (0.089 R)
• M2: 602,281 km (0.07 R)
• M3: 1,251,835 km (0.117 R)
• M4: 1,542,055 km (0.117 R)
• M5: 2,309,492 km (0.115 R)
• M6: 2,614,971 km (0.09 R)
• M7: 2,926,882 km (0.118 R)
• M8: 3,373,731 km (0.118 R)
• M9: 3,889,395 km (0.089 R)
• M10: 4,483,299 km (0.112 R)
• M11: 5,531,980 km (0.118 R)
• M12: 7,359,766 km (0.071 R)
• M13: 8,265,582 km (0.087 R)
• M14: 11,839,624 km (0.084 R)
• M15: 12,802,885 km (0.102 R)
• M16: 16,915,181 km (0.112 R)
• M17: 21,751,381 km (0.05 R)
• M18: 31,061,155 km (0.039 R)
• M19: 34,886,822 km (0.084 R)
• M20: 37,982,451 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 408.3

Radius: 5

Gravity: 16.33 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 7.12 AU - 9.74 AU

Year: 16895 Days

Day: 23.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 146.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,222,231 km

• M1: 448,046 km (0.095 R)
• M2: 1,952,851 km (0.049 R)
• M3: 2,172,909 km (0.116 R)
• M4: 2,841,761 km (0.105 R)
• M5: 3,198,702 km (0.115 R)
• M6: 3,375,227 km (0.093 R)
• M7: 3,531,707 km (0.091 R)
• M8: 5,921,233 km (0.073 R)
• M9: 6,188,116 km (0.04 R)
• M10: 6,344,147 km (0.116 R)
• M11: 10,100,399 km (0.066 R)
• M12: 12,720,008 km (0.11 R)
• M13: 18,274,128 km (0.066 R)
• M14: 23,224,770 km (0.082 R)
• M15: 24,564,419 km (0.094 R)
• M16: 26,259,363 km (0.064 R)
• M17: 32,275,292 km (0.103 R)
• M18: 35,663,534 km (0.088 R)
• M19: 42,711,688 km (0.096 R)
• M20: 45,301,676 km (0.092 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: 516 - 17,130 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit