🌌 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: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.3

Radius: 13.8

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.75 AU - 0.83 AU

Year: 446 Days

Day: 5.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,468,924 km

• M1: 171,738 km (0.117 R)
• M2: 712,834 km (0.118 R)
• M3: 1,290,132 km (0.054 R)
• M4: 1,830,180 km (0.118 R)
• M5: 2,414,958 km (0.115 R)
• M6: 2,944,834 km (0.118 R)
• M7: 3,966,737 km (0.115 R)
• M8: 4,590,261 km (0.062 R)
• M9: 5,180,724 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.7

Radius: 14.3

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.87 AU - 1.09 AU

Year: 617 Days

Day: 14.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,468,924 km

• M1: 180,265 km (0.12 R)
• M2: 856,298 km (0.097 R)
• M3: 1,438,084 km (0.1 R)
• M4: 2,256,385 km (0.107 R)
• M5: 2,959,195 km (0.11 R)
• M6: 3,510,314 km (0.051 R)
• M7: 4,063,228 km (0.105 R)
• M8: 4,688,846 km (0.072 R)
• M9: 5,672,452 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.3

Radius: 14.2

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.87 AU - 1.41 AU

Year: 774 Days

Day: 10.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,468,924 km

• M1: 182,509 km (0.067 R)
• M2: 647,609 km (0.053 R)
• M3: 1,129,614 km (0.081 R)
• M4: 1,576,612 km (0.112 R)
• M5: 2,057,270 km (0.063 R)
• M6: 3,010,807 km (0.058 R)
• M7: 3,734,561 km (0.05 R)
• M8: 4,901,574 km (0.066 R)
• M9: 5,359,793 km (0.079 R)
• M10: 5,886,826 km (0.03 R)
• M11: 6,341,753 km (0.074 R)
• M12: 7,511,758 km (0.114 R)
• M13: 8,377,331 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.2

Radius: 12.5

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.32 AU - 1.4 AU

Year: 1008 Days

Day: 9.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,468,924 km

• M1: 155,582 km (0.06 R)
• M2: 645,814 km (0.11 R)
• M3: 1,288,636 km (0.051 R)
• M4: 2,146,281 km (0.111 R)
• M5: 2,783,119 km (0.091 R)
• M6: 3,640,165 km (0.111 R)
• M7: 4,278,200 km (0.04 R)
• M8: 5,346,777 km (0.074 R)
• M9: 7,038,580 km (0.102 R)
• M10: 7,466,280 km (0.092 R)
• M11: 7,983,290 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.3

Radius: 13.8

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.26 AU - 2.32 AU

Year: 2203 Days

Day: 6 Hours

Environment

Temp: -197 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,468,924 km

• M1: 171,589 km (0.107 R)
• M2: 742,903 km (0.08 R)
• M3: 1,184,666 km (0.058 R)
• M4: 1,912,758 km (0.093 R)
• M5: 3,410,981 km (0.029 R)
• M6: 3,853,043 km (0.029 R)
• M7: 4,653,990 km (0.072 R)
• M8: 5,247,893 km (0.093 R)
• M9: 6,450,511 km (0.048 R)
• M10: 7,923,601 km (0.119 R)
• M11: 9,828,281 km (0.096 R)
• M12: 11,124,397 km (0.096 R)
• M13: 13,323,186 km (0.077 R)
• M14: 15,949,527 km (0.112 R)
• M15: 16,461,750 km (0.085 R)
• M16: 17,037,851 km (0.047 R)
• M17: 18,677,893 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.2

Radius: 10.6

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 3.71 AU - 4.81 AU

Year: 5590 Days

Day: 12.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,468,924 km

• M1: 131,945 km (0.086 R)
• M2: 1,675,945 km (0.055 R)
• M3: 2,112,322 km (0.085 R)
• M4: 3,357,874 km (0.048 R)
• M5: 4,985,648 km (0.097 R)
• M6: 5,371,611 km (0.063 R)
• M7: 11,368,690 km (0.066 R)
• M8: 12,535,404 km (0.093 R)
• M9: 13,567,031 km (0.094 R)
• M10: 18,721,725 km (0.1 R)
• M11: 21,334,601 km (0.108 R)
• M12: 23,715,900 km (0.096 R)
• M13: 29,981,358 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.5

Radius: 14

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.84 AU - 4.76 AU

Year: 5669 Days

Day: 11.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,468,924 km

• M1: 177,573 km (0.101 R)
• M2: 1,017,266 km (0.101 R)
• M3: 1,573,620 km (0.098 R)
• M4: 2,960,691 km (0.099 R)
• M5: 3,520,786 km (0.106 R)
• M6: 4,855,947 km (0.074 R)
• M7: 5,488,447 km (0.061 R)
• M8: 7,422,897 km (0.11 R)
• M9: 12,700,111 km (0.076 R)
• M10: 16,730,876 km (0.059 R)
• M11: 17,182,363 km (0.08 R)
• M12: 19,992,708 km (0.062 R)
• M13: 22,623,536 km (0.115 R)
• M14: 23,981,436 km (0.11 R)
• M15: 28,931,630 km (0.102 R)
• M16: 35,363,141 km (0.115 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: 360 - 11,255 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit