🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.7

Radius: 14.6

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.41 AU - 0.65 AU

Year: 262 Days

Day: 14.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 17,793,430 km

• M1: 181,612 km (0.103 R)
• M2: 680,670 km (0.047 R)
• M3: 1,268,590 km (0.03 R)
• M4: 2,231,402 km (0.106 R)
• M5: 2,966,975 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.9

Radius: 10.5

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.49 AU - 0.61 AU

Year: 277 Days

Day: 11.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 17,793,430 km

• M1: 131,048 km (0.054 R)
• M2: 687,402 km (0.067 R)
• M3: 1,573,919 km (0.098 R)
• M4: 1,957,488 km (0.108 R)
• M5: 2,396,259 km (0.081 R)
• M6: 2,798,827 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.9

Radius: 12.2

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.51 AU - 0.65 AU

Year: 300 Days

Day: 9.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 17,793,430 km

• M1: 151,692 km (0.089 R)
• M2: 541,843 km (0.065 R)
• M3: 925,712 km (0.092 R)
• M4: 1,314,666 km (0.088 R)
• M5: 1,717,384 km (0.048 R)
• M6: 2,378,008 km (0.089 R)
• M7: 2,846,249 km (0.074 R)
• M8: 3,232,361 km (0.084 R)
• M9: 3,764,930 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.3

Radius: 14.6

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.46 AU - 0.7 AU

Year: 300 Days

Day: 8.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 17,793,430 km

• M1: 182,210 km (0.093 R)
• M2: 755,918 km (0.117 R)
• M3: 1,467,854 km (0.104 R)
• M4: 2,245,464 km (0.104 R)
• M5: 2,762,773 km (0.112 R)
• M6: 3,805,770 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.1

Radius: 13.2

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.16 AU - 1.3 AU

Year: 925 Days

Day: 14.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 17,793,430 km

• M1: 164,258 km (0.12 R)
• M2: 626,516 km (0.099 R)
• M3: 1,877,004 km (0.068 R)
• M4: 2,620,955 km (0.078 R)
• M5: 3,055,836 km (0.112 R)
• M6: 4,207,291 km (0.105 R)
• M7: 4,901,425 km (0.063 R)
• M8: 5,506,847 km (0.11 R)
• M9: 6,009,346 km (0.065 R)
• M10: 6,680,592 km (0.098 R)
• M11: 7,351,688 km (0.03 R)
• M12: 7,832,346 km (0.065 R)
• M13: 9,227,645 km (0.1 R)
• M14: 10,091,723 km (0.082 R)
• M15: 11,008,907 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.8

Radius: 11.9

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.52 AU - 1.66 AU

Year: 1360 Days

Day: 11.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,793,430 km

• M1: 148,401 km (0.088 R)
• M2: 548,426 km (0.106 R)
• M3: 948,451 km (0.068 R)
• M4: 1,672,953 km (0.117 R)
• M5: 2,188,018 km (0.082 R)
• M6: 2,619,459 km (0.091 R)
• M7: 3,258,242 km (0.111 R)
• M8: 4,034,056 km (0.111 R)
• M9: 7,954,717 km (0.105 R)
• M10: 8,803,087 km (0.103 R)
• M11: 11,456,803 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.1

Radius: 10.5

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.63 AU - 1.69 AU

Year: 1451 Days

Day: 7.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,793,430 km

• M1: 136,583 km (0.12 R)
• M2: 590,762 km (0.058 R)
• M3: 1,705,266 km (0.096 R)
• M4: 2,278,824 km (0.044 R)
• M5: 3,159,357 km (0.079 R)
• M6: 3,677,864 km (0.074 R)
• M7: 4,886,016 km (0.047 R)
• M8: 5,640,588 km (0.05 R)
• M9: 6,256,033 km (0.074 R)
• M10: 7,145,692 km (0.044 R)
• M11: 8,609,058 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.6

Radius: 14.3

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 3.67 AU - 3.79 AU

Year: 4886 Days

Day: 8.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 17,793,430 km

• M1: 177,872 km (0.084 R)
• M2: 626,965 km (0.069 R)
• M3: 1,920,837 km (0.091 R)
• M4: 2,810,944 km (0.057 R)
• M5: 3,448,530 km (0.09 R)
• M6: 4,339,984 km (0.067 R)
• M7: 5,067,329 km (0.083 R)
• M8: 6,828,993 km (0.115 R)
• M9: 7,376,671 km (0.082 R)
• M10: 8,128,999 km (0.094 R)
• M11: 8,819,542 km (0.089 R)
• M12: 9,353,158 km (0.119 R)
• M13: 10,359,802 km (0.085 R)
• M14: 11,128,586 km (0.093 R)
• M15: 14,854,021 km (0.036 R)
• M16: 18,774,982 km (0.047 R)
• M17: 20,573,597 km (0.11 R)
• M18: 21,857,745 km (0.102 R)
• M19: 23,555,531 km (0.044 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 19.5

Radius: 6.3

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 6.53 AU - 8.09 AU

Year: 13405 Days

Day: 22.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 17,793,430 km

• M1: 80,334 km (0.083 R)
• M2: 484,099 km (0.119 R)
• M3: 1,113,158 km (0.071 R)
• M4: 1,976,936 km (0.055 R)
• M5: 2,332,829 km (0.086 R)
• M6: 7,702,346 km (0.057 R)
• M7: 10,391,816 km (0.116 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 188 - 16,667 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit