🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448

Radius: 12.8

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.71 AU - 0.97 AU

Year: 497 Days

Day: 12.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,104,829 km

• M1: 159,621 km (0.098 R)
• M2: 850,613 km (0.11 R)
• M3: 1,310,477 km (0.07 R)
• M4: 1,773,782 km (0.087 R)
• M5: 2,190,711 km (0.051 R)
• M6: 2,864,201 km (0.095 R)
• M7: 3,468,726 km (0.115 R)
• M8: 4,237,360 km (0.092 R)
• M9: 4,994,923 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.2

Radius: 11.6

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.72 AU - 1 AU

Year: 515 Days

Day: 6 Hours

Environment

Temp: -149 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,104,829 km

• M1: 144,212 km (0.097 R)
• M2: 509,231 km (0.105 R)
• M3: 896,241 km (0.106 R)
• M4: 1,318,406 km (0.086 R)
• M5: 1,949,111 km (0.083 R)
• M6: 2,344,947 km (0.114 R)
• M7: 2,949,771 km (0.097 R)
• M8: 3,762,237 km (0.086 R)
• M9: 4,149,546 km (0.115 R)
• M10: 4,924,313 km (0.103 R)
• M11: 5,337,951 km (0.116 R)
• M12: 6,235,838 km (0.047 R)
• M13: 6,621,950 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.4

Radius: 9.3

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.48 AU - 1.64 AU

Year: 1258 Days

Day: 14.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,104,829 km

• M1: 170,392 km (0.112 R)
• M2: 557,252 km (0.084 R)
• M3: 1,195,137 km (0.106 R)
• M4: 1,573,321 km (0.071 R)
• M5: 3,027,562 km (0.103 R)
• M6: 3,570,752 km (0.11 R)
• M7: 5,648,666 km (0.102 R)
• M8: 6,170,912 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.3

Radius: 8.3

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.33 AU - 1.89 AU

Year: 1319 Days

Day: 13.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,104,829 km

• M1: 103,223 km (0.074 R)
• M2: 468,092 km (0.05 R)
• M3: 924,216 km (0.088 R)
• M4: 1,847,982 km (0.088 R)
• M5: 2,233,047 km (0.039 R)
• M6: 3,439,853 km (0.112 R)
• M7: 3,882,514 km (0.076 R)
• M8: 4,266,382 km (0.114 R)
• M9: 4,574,254 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.5

Radius: 10.5

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.34 AU - 1.92 AU

Year: 1344 Days

Day: 13.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,104,829 km

• M1: 130,599 km (0.111 R)
• M2: 460,761 km (0.071 R)
• M3: 807,081 km (0.112 R)
• M4: 1,177,036 km (0.041 R)
• M5: 1,687,763 km (0.104 R)
• M6: 2,120,550 km (0.088 R)
• M7: 2,734,948 km (0.075 R)
• M8: 3,239,841 km (0.089 R)
• M9: 3,760,292 km (0.034 R)
• M10: 4,170,340 km (0.12 R)
• M11: 4,627,511 km (0.063 R)
• M12: 5,006,143 km (0.088 R)
• M13: 5,424,868 km (0.099 R)
• M14: 6,268,001 km (0.093 R)
• M15: 7,125,347 km (0.074 R)
• M16: 8,033,406 km (0.089 R)
• M17: 8,906,758 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.2

Radius: 11.9

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.42 AU - 2.36 AU

Year: 1678 Days

Day: 7.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,104,829 km

• M1: 150,495 km (0.067 R)
• M2: 754,871 km (0.089 R)
• M3: 1,418,936 km (0.118 R)
• M4: 2,106,787 km (0.119 R)
• M5: 2,636,363 km (0.09 R)
• M6: 3,060,174 km (0.063 R)
• M7: 3,821,627 km (0.1 R)
• M8: 5,888,920 km (0.07 R)
• M9: 7,509,664 km (0.101 R)
• M10: 7,944,694 km (0.097 R)
• M11: 9,616,151 km (0.04 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 80.6

Radius: 6.5

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 6.68 AU - 11.1 AU

Year: 17115 Days

Day: 23.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,104,829 km

• M1: 80,932 km (0.11 R)
• M2: 369,656 km (0.054 R)
• M3: 643,271 km (0.093 R)
• M4: 941,569 km (0.089 R)
• M5: 1,606,232 km (0.115 R)
• M6: 2,408,376 km (0.074 R)
• M7: 3,035,191 km (0.078 R)
• M8: 4,398,626 km (0.093 R)
• M9: 4,959,917 km (0.05 R)
• M10: 6,966,324 km (0.088 R)
• M11: 14,224,663 km (0.072 R)
• M12: 14,739,878 km (0.108 R)
• M13: 16,051,852 km (0.097 R)
• M14: 23,556,578 km (0.115 R)
• M15: 25,178,818 km (0.047 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98.5

Radius: 7.9

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 10.36 AU - 11.96 AU

Year: 24072 Days

Day: 18.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,104,829 km

• M1: 98,435 km (0.056 R)
• M2: 515,065 km (0.102 R)
• M3: 1,805,497 km (0.114 R)
• M4: 4,952,288 km (0.088 R)
• M5: 6,174,353 km (0.085 R)
• M6: 7,067,751 km (0.11 R)
• M7: 7,343,759 km (0.113 R)
• M8: 13,756,123 km (0.082 R)
• M9: 15,469,467 km (0.086 R)
• M10: 16,138,618 km (0.068 R)
• M11: 17,391,650 km (0.115 R)
• M12: 17,823,390 km (0.08 R)
• M13: 22,204,064 km (0.104 R)
• M14: 28,327,404 km (0.1 R)
• M15: 30,249,138 km (0.078 R)
• M16: 36,182,938 km (0.06 R)
• M17: 37,360,871 km (0.106 R)
• M18: 38,442,614 km (0.074 R)
• M19: 38,930,003 km (0.113 R)
• M20: 42,458,120 km (0.11 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 361 - 13,185 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit