🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.1

Radius: 12.5

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.47 AU - 0.65 AU

Year: 284 Days

Day: 12.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 75,627,237 km

• M1: 155,432 km (0.064 R)
• M2: 770,579 km (0.079 R)
• M3: 1,165,816 km (0.12 R)
• M4: 1,716,486 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.2

Radius: 12.3

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.49 AU - 0.69 AU

Year: 307 Days

Day: 14 Hours

Environment

Temp: -157 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 75,627,237 km

• M1: 153,338 km (0.109 R)
• M2: 600,336 km (0.11 R)
• M3: 1,257,968 km (0.105 R)
• M4: 1,687,614 km (0.034 R)
• M5: 2,512,347 km (0.119 R)
• M6: 2,993,603 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.3

Radius: 15

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.55 AU - 0.87 AU

Year: 406 Days

Day: 8.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 75,627,237 km

• M1: 186,549 km (0.069 R)
• M2: 665,860 km (0.091 R)
• M3: 1,252,433 km (0.096 R)
• M4: 1,979,329 km (0.086 R)
• M5: 3,567,161 km (0.086 R)

Asteroid Belt

Center: 1.93 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.5

Radius: 8.6

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.5 AU - 3.78 AU

Year: 3774 Days

Day: 6.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 75,627,237 km

• M1: 106,962 km (0.104 R)
• M2: 450,888 km (0.074 R)
• M3: 1,038,359 km (0.102 R)
• M4: 1,383,631 km (0.107 R)
• M5: 2,084,796 km (0.111 R)
• M6: 2,671,968 km (0.089 R)
• M7: 2,955,605 km (0.085 R)
• M8: 3,697,012 km (0.099 R)
• M9: 4,050,512 km (0.074 R)
• M10: 4,383,666 km (0.104 R)
• M11: 4,712,483 km (0.102 R)
• M12: 5,297,261 km (0.064 R)
• M13: 5,670,806 km (0.071 R)
• M14: 5,955,790 km (0.081 R)
• M15: 6,250,498 km (0.054 R)
• M16: 7,313,840 km (0.105 R)
• M17: 8,594,098 km (0.103 R)
• M18: 10,206,315 km (0.089 R)
• M19: 10,825,201 km (0.078 R)
• M20: 11,143,994 km (0.112 R)
• M21: 11,800,280 km (0.101 R)
• M22: 12,137,922 km (0.119 R)
• M23: 12,656,578 km (0.075 R)
• M24: 16,499,598 km (0.094 R)
• M25: 17,297,703 km (0.065 R)
• M26: 18,401,735 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.2

Radius: 14.5

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 5.04 AU - 5.04 AU

Year: 7674 Days

Day: 11.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 75,627,237 km

• M1: 180,265 km (0.104 R)
• M2: 794,664 km (0.111 R)
• M3: 2,889,932 km (0.1 R)
• M4: 3,571,051 km (0.083 R)
• M5: 4,627,810 km (0.1 R)
• M6: 5,854,662 km (0.114 R)
• M7: 7,084,656 km (0.079 R)
• M8: 11,068,148 km (0.077 R)
• M9: 15,360,560 km (0.075 R)
• M10: 18,256,475 km (0.088 R)
• M11: 19,497,390 km (0.09 R)
• M12: 19,968,473 km (0.07 R)
• M13: 22,001,957 km (0.116 R)
• M14: 22,660,188 km (0.108 R)
• M15: 23,939,549 km (0.107 R)
• M16: 25,826,726 km (0.094 R)
• M17: 28,237,496 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.1

Radius: 12.7

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.68 AU - 5.84 AU

Year: 8182 Days

Day: 11.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,627,237 km

• M1: 157,975 km (0.096 R)
• M2: 625,768 km (0.101 R)
• M3: 1,751,641 km (0.114 R)
• M4: 2,547,801 km (0.093 R)
• M5: 3,019,035 km (0.045 R)
• M6: 3,671,581 km (0.101 R)
• M7: 4,676,729 km (0.05 R)
• M8: 8,008,872 km (0.104 R)
• M9: 8,531,118 km (0.109 R)
• M10: 9,547,785 km (0.109 R)
• M11: 12,100,972 km (0.107 R)
• M12: 12,557,395 km (0.068 R)
• M13: 20,537,095 km (0.118 R)
• M14: 25,382,121 km (0.074 R)
• M15: 30,100,288 km (0.064 R)
• M16: 40,212,955 km (0.077 R)
• M17: 40,847,399 km (0.084 R)
• M18: 44,389,279 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 221.5

Radius: 6

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 4.76 AU - 7.86 AU

Year: 10751 Days

Day: 19.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 75,627,237 km

• M1: 186,249 km (0.085 R)
• M2: 723,007 km (0.084 R)
• M3: 1,042,548 km (0.081 R)
• M4: 1,615,956 km (0.054 R)
• M5: 2,590,736 km (0.073 R)
• M6: 3,651,534 km (0.093 R)
• M7: 4,433,034 km (0.12 R)
• M8: 4,835,452 km (0.119 R)
• M9: 7,442,045 km (0.099 R)
• M10: 8,812,811 km (0.109 R)
• M11: 9,319,349 km (0.055 R)
• M12: 10,482,921 km (0.119 R)
• M13: 13,257,812 km (0.03 R)
• M14: 14,377,702 km (0.104 R)
• M15: 18,316,015 km (0.051 R)
• M16: 20,348,751 km (0.105 R)
• M17: 29,241,148 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 894.3

Radius: 5.3

Gravity: 31.84 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 7.02 AU - 10.34 AU

Year: 17345 Days

Day: 17.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 75,627,237 km

• M1: 65,973 km (0.12 R)
• M2: 470,934 km (0.094 R)
• M3: 1,569,730 km (0.089 R)
• M4: 1,778,569 km (0.113 R)
• M5: 2,957,849 km (0.039 R)
• M6: 3,195,859 km (0.063 R)
• M7: 3,893,285 km (0.089 R)
• M8: 4,311,111 km (0.1 R)
• M9: 5,197,778 km (0.065 R)
• M10: 6,679,695 km (0.084 R)
• M11: 8,474,719 km (0.074 R)
• M12: 8,686,251 km (0.115 R)
• M13: 10,207,512 km (0.103 R)
• M14: 11,571,844 km (0.094 R)
• M15: 13,985,755 km (0.05 R)
• M16: 14,207,160 km (0.119 R)
• M17: 15,663,645 km (0.052 R)
• M18: 21,202,357 km (0.027 R)
• M19: 21,494,671 km (0.076 R)
• M20: 22,791,984 km (0.095 R)
• M21: 26,206,256 km (0.037 R)
• M22: 30,191,393 km (0.097 R)
• M23: 39,336,461 km (0.05 R)
• M24: 40,073,829 km (0.064 R)
• M25: 42,186,899 km (0.055 R)
• M26: 51,910,760 km (0.092 R)
• M27: 53,694,266 km (0.119 R)
• M28: 55,334,008 km (0.098 R)
• M29: 62,028,214 km (0.095 R)
• M30: 74,051,544 km (0.095 R)
• M31: 75,627,259 km (0.097 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 17,162 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit