🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.3

Radius: 10.1

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.66 AU - 0.72 AU

Year: 370 Days

Day: 8.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,079,223 km

• M1: 125,662 km (0.049 R)
• M2: 568,472 km (0.052 R)
• M3: 889,210 km (0.092 R)
• M4: 1,219,522 km (0.09 R)
• M5: 1,600,548 km (0.103 R)
• M6: 1,983,518 km (0.111 R)
• M7: 2,828,297 km (0.05 R)
• M8: 3,552,201 km (0.12 R)
• M9: 4,096,139 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.7

Radius: 13.2

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.08 AU - 1.32 AU

Year: 849 Days

Day: 14.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 48,079,223 km

• M1: 164,857 km (0.106 R)
• M2: 606,021 km (0.115 R)
• M3: 1,249,890 km (0.062 R)
• M4: 1,846,337 km (0.078 R)
• M5: 2,782,820 km (0.113 R)
• M6: 3,510,912 km (0.112 R)
• M7: 4,082,675 km (0.108 R)
• M8: 5,754,282 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.7

Radius: 10.1

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.99 AU - 1.45 AU

Year: 870 Days

Day: 12.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 48,079,223 km

• M1: 125,662 km (0.114 R)
• M2: 537,655 km (0.117 R)
• M3: 1,020,557 km (0.107 R)
• M4: 1,386,174 km (0.103 R)
• M5: 1,709,305 km (0.058 R)
• M6: 2,070,734 km (0.077 R)
• M7: 2,461,783 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.9

Radius: 8.3

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.53 AU - 2.03 AU

Year: 1533 Days

Day: 9.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 48,079,223 km

• M1: 103,223 km (0.09 R)
• M2: 470,485 km (0.088 R)
• M3: 892,800 km (0.068 R)
• M4: 1,266,944 km (0.117 R)
• M5: 1,634,207 km (0.117 R)
• M6: 2,008,950 km (0.095 R)
• M7: 3,000,335 km (0.104 R)
• M8: 3,785,275 km (0.091 R)
• M9: 6,015,929 km (0.067 R)
• M10: 7,484,082 km (0.054 R)
• M11: 8,633,443 km (0.075 R)
• M12: 8,916,781 km (0.1 R)
• M13: 9,472,388 km (0.035 R)
• M14: 9,804,495 km (0.09 R)
• M15: 10,206,913 km (0.088 R)
• M16: 10,652,565 km (0.075 R)
• M17: 10,913,015 km (0.102 R)
• M18: 11,177,803 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198

Radius: 14.5

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.29 AU - 2.41 AU

Year: 2326 Days

Day: 14.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,079,223 km

• M1: 185,053 km (0.055 R)
• M2: 644,318 km (0.112 R)
• M3: 1,138,739 km (0.106 R)
• M4: 2,242,622 km (0.102 R)
• M5: 3,104,455 km (0.086 R)
• M6: 3,731,270 km (0.112 R)
• M7: 4,352,700 km (0.046 R)
• M8: 5,161,127 km (0.06 R)
• M9: 5,761,612 km (0.093 R)
• M10: 6,833,930 km (0.051 R)
• M11: 8,089,804 km (0.069 R)
• M12: 10,112,367 km (0.048 R)
• M13: 11,360,612 km (0.09 R)

Asteroid Belt

Center: 2.91 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.9

Radius: 12

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.99 AU - 3.93 AU

Year: 4156 Days

Day: 12.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,079,223 km

• M1: 149,299 km (0.058 R)
• M2: 535,411 km (0.117 R)
• M3: 1,178,682 km (0.11 R)
• M4: 1,553,574 km (0.101 R)
• M5: 2,123,542 km (0.037 R)
• M6: 3,277,689 km (0.078 R)
• M7: 3,816,541 km (0.063 R)
• M8: 4,511,124 km (0.084 R)
• M9: 6,062,304 km (0.116 R)
• M10: 7,623,208 km (0.099 R)
• M11: 8,573,155 km (0.113 R)
• M12: 10,058,961 km (0.109 R)
• M13: 11,292,694 km (0.044 R)
• M14: 12,575,347 km (0.044 R)
• M15: 13,023,841 km (0.105 R)
• M16: 17,187,898 km (0.077 R)
• M17: 17,803,044 km (0.079 R)
• M18: 18,369,123 km (0.113 R)
• M19: 19,803,467 km (0.094 R)
• M20: 20,275,149 km (0.09 R)
• M21: 24,093,485 km (0.082 R)
• M22: 27,109,677 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.9

Radius: 9.5

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.93 AU - 4.57 AU

Year: 5657 Days

Day: 11 Hours

Environment

Temp: -210 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,079,223 km

• M1: 118,182 km (0.074 R)
• M2: 435,330 km (0.078 R)
• M3: 1,371,364 km (0.061 R)
• M4: 3,093,534 km (0.104 R)
• M5: 4,244,690 km (0.119 R)
• M6: 4,725,647 km (0.093 R)
• M7: 5,178,480 km (0.104 R)
• M8: 5,819,507 km (0.092 R)
• M9: 6,789,499 km (0.106 R)
• M10: 11,325,756 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 660

Radius: 3.1

Gravity: 68.68 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 6.2 AU - 6.42 AU

Year: 10234 Days

Day: 17.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 48,079,223 km

• M1: 38,895 km (0.075 R)
• M2: 164,857 km (0.098 R)
• M3: 274,512 km (0.102 R)
• M4: 422,913 km (0.077 R)
• M5: 522,695 km (0.097 R)
• M6: 1,026,840 km (0.095 R)
• M7: 1,687,763 km (0.059 R)
• M8: 2,471,955 km (0.103 R)
• M9: 2,695,454 km (0.12 R)
• M10: 3,349,496 km (0.077 R)
• M11: 3,572,397 km (0.061 R)
• M12: 3,911,685 km (0.093 R)
• M13: 4,714,577 km (0.1 R)
• M14: 5,026,339 km (0.073 R)
• M15: 5,219,769 km (0.118 R)
• M16: 5,418,136 km (0.117 R)
• M17: 5,519,264 km (0.088 R)
• M18: 6,411,166 km (0.103 R)
• M19: 6,715,748 km (0.115 R)
• M20: 7,901,311 km (0.118 R)
• M21: 8,206,939 km (0.118 R)
• M22: 9,123,974 km (0.075 R)
• M23: 9,411,800 km (0.046 R)
• M24: 10,467,363 km (0.095 R)
• M25: 11,936,863 km (0.116 R)
• M26: 14,879,004 km (0.099 R)
• M27: 15,412,171 km (0.106 R)
• M28: 16,872,097 km (0.095 R)
• M29: 17,087,966 km (0.085 R)
• M30: 20,878,477 km (0.103 R)
• M31: 21,800,299 km (0.099 R)
• M32: 26,526,694 km (0.11 R)
• M33: 27,606,941 km (0.094 R)
• M34: 28,921,158 km (0.11 R)
• M35: 32,554,142 km (0.104 R)
• M36: 36,720,144 km (0.12 R)
• M37: 45,670,584 km (0.098 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 15,013 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit