🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.3

Radius: 12

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.49 AU - 0.59 AU

Year: 269 Days

Day: 10.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 18,000,691 km

• M1: 150,196 km (0.11 R)
• M2: 528,380 km (0.096 R)
• M3: 979,567 km (0.115 R)
• M4: 1,486,255 km (0.117 R)
• M5: 2,142,690 km (0.12 R)
• M6: 2,927,930 km (0.108 R)
• M7: 3,419,508 km (0.051 R)
• M8: 4,132,641 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.5

Radius: 14.6

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.87 AU - 1.05 AU

Year: 638 Days

Day: 5.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 18,000,691 km

• M1: 181,612 km (0.12 R)
• M2: 917,633 km (0.107 R)
• M3: 1,497,475 km (0.095 R)
• M4: 2,047,247 km (0.115 R)
• M5: 2,709,816 km (0.116 R)
• M6: 3,179,104 km (0.112 R)
• M7: 4,361,825 km (0.119 R)
• M8: 5,254,924 km (0.079 R)
• M9: 5,877,700 km (0.081 R)
• M10: 7,162,596 km (0.094 R)
• M11: 7,930,183 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557

Radius: 9

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.84 AU - 1.12 AU

Year: 658 Days

Day: 11.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,000,691 km

• M1: 112,797 km (0.067 R)
• M2: 478,564 km (0.082 R)
• M3: 1,115,701 km (0.1 R)
• M4: 1,427,612 km (0.089 R)
• M5: 1,717,683 km (0.1 R)
• M6: 2,083,749 km (0.111 R)
• M7: 2,758,435 km (0.082 R)
• M8: 3,288,760 km (0.051 R)
• M9: 3,678,911 km (0.083 R)
• M10: 4,114,390 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.6

Radius: 9.9

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.97 AU - 1.01 AU

Year: 668 Days

Day: 14.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 18,000,691 km

• M1: 123,119 km (0.116 R)
• M2: 459,265 km (0.068 R)
• M3: 864,825 km (0.069 R)
• M4: 1,197,980 km (0.103 R)
• M5: 1,556,566 km (0.066 R)
• M6: 1,954,795 km (0.104 R)
• M7: 2,393,117 km (0.116 R)
• M8: 2,711,013 km (0.078 R)
• M9: 3,385,849 km (0.108 R)
• M10: 3,776,149 km (0.069 R)
• M11: 4,691,240 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.1

Radius: 8

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1 AU - 1.22 AU

Year: 793 Days

Day: 6.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,000,691 km

• M1: 99,483 km (0.091 R)
• M2: 352,303 km (0.098 R)
• M3: 684,111 km (0.037 R)
• M4: 1,014,573 km (0.086 R)
• M5: 1,478,326 km (0.09 R)
• M6: 1,880,595 km (0.095 R)
• M7: 2,402,841 km (0.108 R)
• M8: 2,709,217 km (0.104 R)
• M9: 3,476,056 km (0.107 R)
• M10: 3,735,010 km (0.103 R)
• M11: 4,350,605 km (0.072 R)
• M12: 5,064,636 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.1

Radius: 13.8

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.23 AU - 1.95 AU

Year: 1360 Days

Day: 14.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 18,000,691 km

• M1: 171,738 km (0.1 R)
• M2: 697,874 km (0.084 R)
• M3: 1,629,121 km (0.063 R)
• M4: 2,348,687 km (0.069 R)
• M5: 2,811,542 km (0.032 R)
• M6: 3,621,914 km (0.096 R)
• M7: 4,504,990 km (0.099 R)
• M8: 5,090,666 km (0.087 R)
• M9: 6,064,698 km (0.12 R)
• M10: 6,760,029 km (0.119 R)
• M11: 7,288,857 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.8

Radius: 10.3

Gravity: 9.02 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.97 AU - 2.07 AU

Year: 1947 Days

Day: 13.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 18,000,691 km

• M1: 128,205 km (0.098 R)
• M2: 456,872 km (0.113 R)
• M3: 868,416 km (0.085 R)
• M4: 1,237,922 km (0.118 R)
• M5: 1,579,006 km (0.099 R)
• M6: 1,936,694 km (0.082 R)
• M7: 2,269,699 km (0.101 R)
• M8: 2,973,706 km (0.042 R)
• M9: 4,085,967 km (0.085 R)
• M10: 4,725,946 km (0.102 R)
• M11: 5,196,581 km (0.026 R)
• M12: 6,444,078 km (0.093 R)
• M13: 8,129,597 km (0.073 R)
• M14: 8,806,827 km (0.09 R)
• M15: 9,982,516 km (0.089 R)
• M16: 10,949,816 km (0.03 R)
• M17: 13,596,352 km (0.053 R)
• M18: 15,891,333 km (0.093 R)
• M19: 16,693,477 km (0.094 R)
• M20: 17,365,022 km (0.12 R)
• M21: 17,733,930 km (0.102 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 484 - 14,972 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit