🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.1

Radius: 10.2

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.64 AU - 0.96 AU

Year: 462 Days

Day: 12.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 44,399,570 km

• M1: 127,009 km (0.101 R)
• M2: 492,327 km (0.041 R)
• M3: 931,097 km (0.12 R)
• M4: 1,322,744 km (0.066 R)
• M5: 1,919,789 km (0.079 R)
• M6: 2,582,059 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.3

Radius: 8.5

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.1 AU - 1.14 AU

Year: 765 Days

Day: 11.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,399,570 km

• M1: 105,766 km (0.078 R)
• M2: 568,622 km (0.088 R)
• M3: 1,185,114 km (0.067 R)
• M4: 1,754,035 km (0.111 R)
• M5: 2,165,130 km (0.072 R)
• M6: 2,692,762 km (0.05 R)
• M7: 3,266,619 km (0.115 R)
• M8: 3,569,854 km (0.104 R)
• M9: 4,688,098 km (0.059 R)
• M10: 5,483,510 km (0.092 R)
• M11: 5,840,301 km (0.046 R)
• M12: 6,288,945 km (0.111 R)
• M13: 6,660,247 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.3

Radius: 12.6

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.95 AU - 1.35 AU

Year: 796 Days

Day: 7.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,399,570 km

• M1: 156,629 km (0.067 R)
• M2: 605,572 km (0.115 R)
• M3: 1,164,171 km (0.027 R)
• M4: 1,601,296 km (0.111 R)
• M5: 2,011,044 km (0.101 R)
• M6: 3,659,014 km (0.099 R)
• M7: 4,088,659 km (0.057 R)
• M8: 4,603,725 km (0.042 R)
• M9: 5,785,398 km (0.098 R)
• M10: 7,253,851 km (0.078 R)
• M11: 7,687,685 km (0.077 R)
• M12: 8,423,407 km (0.101 R)
• M13: 9,686,163 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.3

Radius: 12.5

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.16 AU - 1.44 AU

Year: 957 Days

Day: 13.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,399,570 km

• M1: 157,078 km (0.062 R)
• M2: 1,038,209 km (0.101 R)
• M3: 1,458,579 km (0.093 R)
• M4: 1,955,992 km (0.087 R)
• M5: 2,405,085 km (0.091 R)
• M6: 2,923,292 km (0.086 R)
• M7: 4,253,516 km (0.104 R)
• M8: 5,342,888 km (0.093 R)
• M9: 5,786,146 km (0.044 R)
• M10: 6,188,714 km (0.056 R)
• M11: 7,169,478 km (0.092 R)
• M12: 8,277,849 km (0.107 R)
• M13: 8,900,924 km (0.042 R)
• M14: 10,180,285 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.9

Radius: 14.6

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.33 AU - 1.41 AU

Year: 1035 Days

Day: 5.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,399,570 km

• M1: 181,612 km (0.104 R)
• M2: 884,722 km (0.083 R)
• M3: 1,476,681 km (0.095 R)
• M4: 1,937,592 km (0.08 R)
• M5: 2,659,701 km (0.111 R)
• M6: 3,660,361 km (0.072 R)
• M7: 4,209,983 km (0.091 R)
• M8: 4,703,058 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.1

Radius: 13.6

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.09 AU - 1.65 AU

Year: 1035 Days

Day: 11 Hours

Environment

Temp: -176 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,399,570 km

• M1: 169,943 km (0.03 R)
• M2: 602,281 km (0.069 R)
• M3: 1,069,774 km (0.092 R)
• M4: 1,534,425 km (0.082 R)
• M5: 2,084,198 km (0.03 R)
• M6: 2,884,247 km (0.077 R)
• M7: 3,525,423 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.3

Radius: 14.2

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.18 AU - 1.68 AU

Year: 1104 Days

Day: 7.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,399,570 km

• M1: 176,525 km (0.079 R)
• M2: 644,318 km (0.076 R)
• M3: 1,513,033 km (0.048 R)
• M4: 2,014,335 km (0.114 R)
• M5: 3,136,319 km (0.101 R)
• M6: 4,303,482 km (0.06 R)
• M7: 6,288,496 km (0.043 R)
• M8: 7,534,646 km (0.059 R)
• M9: 8,002,588 km (0.096 R)
• M10: 8,545,180 km (0.093 R)
• M11: 10,417,397 km (0.027 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.9

Radius: 11.5

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.96 AU - 4.9 AU

Year: 5030 Days

Day: 7.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,399,570 km

• M1: 154,983 km (0.095 R)
• M2: 658,380 km (0.086 R)
• M3: 1,218,175 km (0.073 R)
• M4: 1,633,010 km (0.047 R)
• M5: 2,068,041 km (0.105 R)
• M6: 5,298,906 km (0.085 R)
• M7: 7,781,034 km (0.109 R)
• M8: 8,388,701 km (0.033 R)
• M9: 8,824,629 km (0.12 R)
• M10: 11,188,874 km (0.047 R)
• M11: 13,034,612 km (0.074 R)
• M12: 14,391,614 km (0.055 R)
• M13: 14,845,046 km (0.097 R)
• M14: 18,094,610 km (0.099 R)
• M15: 19,026,456 km (0.111 R)
• M16: 21,716,973 km (0.115 R)
• M17: 22,769,095 km (0.11 R)
• M18: 23,230,455 km (0.1 R)
• M19: 25,713,480 km (0.09 R)
• M20: 29,353,047 km (0.075 R)
• M21: 30,267,688 km (0.065 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550

Radius: 11.1

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 4.01 AU - 5.13 AU

Year: 6308 Days

Day: 6.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,399,570 km

• M1: 157,377 km (0.06 R)
• M2: 809,324 km (0.098 R)
• M3: 2,386,984 km (0.109 R)
• M4: 3,860,672 km (0.096 R)
• M5: 7,435,762 km (0.118 R)
• M6: 9,476,427 km (0.067 R)
• M7: 11,044,811 km (0.063 R)
• M8: 17,096,493 km (0.118 R)
• M9: 18,261,113 km (0.074 R)
• M10: 18,930,713 km (0.027 R)
• M11: 23,141,145 km (0.067 R)
• M12: 26,299,605 km (0.086 R)
• M13: 27,239,977 km (0.113 R)
• M14: 27,674,708 km (0.026 R)
• M15: 30,288,482 km (0.093 R)
• M16: 31,226,760 km (0.074 R)
• M17: 32,280,977 km (0.114 R)
• M18: 32,670,230 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 163.4

Radius: 4.4

Gravity: 8.44 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 7.75 AU - 10.81 AU

Year: 18253 Days

Day: 24.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,399,570 km

• M1: 55,052 km (0.086 R)
• M2: 223,050 km (0.042 R)
• M3: 645,066 km (0.105 R)
• M4: 3,155,917 km (0.11 R)
• M5: 3,988,878 km (0.072 R)
• M6: 4,204,299 km (0.047 R)
• M7: 6,254,089 km (0.083 R)
• M8: 6,471,604 km (0.111 R)
• M9: 6,731,605 km (0.085 R)
• M10: 8,310,311 km (0.111 R)
• M11: 17,662,572 km (0.096 R)
• M12: 19,063,556 km (0.105 R)
• M13: 21,342,380 km (0.075 R)
• M14: 22,589,428 km (0.084 R)
• M15: 23,360,455 km (0.087 R)
• M16: 42,433,885 km (0.088 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 376 - 12,725 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit