🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.2

Radius: 10.1

Gravity: 8.14 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.43 AU - 0.63 AU

Year: 257 Days

Day: 14.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,203,629 km

• M1: 125,662 km (0.106 R)
• M2: 467,344 km (0.094 R)
• M3: 788,381 km (0.032 R)
• M4: 1,182,422 km (0.113 R)
• M5: 1,498,671 km (0.059 R)
• M6: 1,830,330 km (0.113 R)
• M7: 2,203,427 km (0.113 R)
• M8: 2,765,167 km (0.102 R)
• M9: 3,156,515 km (0.072 R)
• M10: 3,675,021 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.5

Radius: 12.1

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.53 AU - 0.71 AU

Year: 326 Days

Day: 8.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,203,629 km

• M1: 150,795 km (0.079 R)
• M2: 604,675 km (0.068 R)
• M3: 1,046,437 km (0.108 R)
• M4: 1,449,454 km (0.055 R)
• M5: 1,916,050 km (0.116 R)
• M6: 2,449,516 km (0.056 R)
• M7: 2,871,232 km (0.115 R)
• M8: 3,761,788 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38

Radius: 10.2

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.8 AU - 1.04 AU

Year: 588 Days

Day: 6.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 27,203,629 km

• M1: 127,457 km (0.093 R)
• M2: 575,503 km (0.077 R)
• M3: 1,020,407 km (0.093 R)
• M4: 1,764,656 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.7

Radius: 14

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.78 AU - 1.26 AU

Year: 687 Days

Day: 7.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,203,629 km

• M1: 174,132 km (0.056 R)
• M2: 675,135 km (0.061 R)
• M3: 1,229,545 km (0.037 R)
• M4: 1,666,371 km (0.1 R)
• M5: 2,108,133 km (0.101 R)
• M6: 2,814,684 km (0.071 R)
• M7: 3,477,103 km (0.098 R)
• M8: 4,095,092 km (0.111 R)
• M9: 4,673,138 km (0.044 R)
• M10: 5,697,285 km (0.082 R)
• M11: 6,166,125 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.9

Radius: 9.2

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.12 AU - 1.22 AU

Year: 844 Days

Day: 10.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,203,629 km

• M1: 114,442 km (0.082 R)
• M2: 643,121 km (0.105 R)
• M3: 1,253,780 km (0.108 R)
• M4: 2,118,455 km (0.099 R)
• M5: 2,620,506 km (0.095 R)
• M6: 3,099,668 km (0.103 R)
• M7: 3,502,535 km (0.12 R)
• M8: 4,018,797 km (0.118 R)
• M9: 4,879,883 km (0.09 R)
• M10: 5,491,887 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.2

Radius: 13.9

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.42 AU - 1.66 AU

Year: 1274 Days

Day: 13.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,203,629 km

• M1: 174,282 km (0.028 R)
• M2: 613,052 km (0.091 R)
• M3: 1,148,612 km (0.102 R)
• M4: 2,041,113 km (0.113 R)
• M5: 3,517,944 km (0.106 R)
• M6: 3,990,074 km (0.056 R)
• M7: 4,685,705 km (0.069 R)
• M8: 5,183,566 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.9

Radius: 14.7

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.72 AU - 2 AU

Year: 1692 Days

Day: 13.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 27,203,629 km

• M1: 184,753 km (0.101 R)
• M2: 706,252 km (0.094 R)
• M3: 1,203,365 km (0.102 R)
• M4: 2,274,785 km (0.081 R)
• M5: 2,783,717 km (0.067 R)
• M6: 4,773,518 km (0.12 R)
• M7: 7,139,558 km (0.043 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.5

Radius: 11

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.66 AU - 2.16 AU

Year: 1760 Days

Day: 12.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,203,629 km

• M1: 136,882 km (0.036 R)
• M2: 497,263 km (0.04 R)
• M3: 1,189,004 km (0.08 R)
• M4: 1,562,400 km (0.119 R)
• M5: 1,904,830 km (0.069 R)
• M6: 2,373,071 km (0.075 R)
• M7: 2,859,563 km (0.117 R)
• M8: 3,267,367 km (0.068 R)
• M9: 3,696,563 km (0.03 R)
• M10: 4,649,352 km (0.077 R)
• M11: 5,107,870 km (0.073 R)
• M12: 5,735,134 km (0.045 R)
• M13: 6,955,852 km (0.118 R)
• M14: 8,432,832 km (0.085 R)
• M15: 9,770,536 km (0.112 R)
• M16: 10,385,234 km (0.115 R)
• M17: 11,920,258 km (0.073 R)
• M18: 13,105,521 km (0.106 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.3

Radius: 13.6

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.76 AU - 2.48 AU

Year: 2058 Days

Day: 11.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 108.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,203,629 km

• M1: 172,038 km (0.092 R)
• M2: 677,080 km (0.119 R)
• M3: 1,168,359 km (0.1 R)
• M4: 1,925,474 km (0.119 R)
• M5: 2,765,017 km (0.093 R)
• M6: 3,356,378 km (0.112 R)
• M7: 4,856,246 km (0.114 R)
• M8: 5,452,244 km (0.096 R)
• M9: 6,048,840 km (0.081 R)
• M10: 6,587,542 km (0.057 R)
• M11: 8,192,279 km (0.112 R)
• M12: 9,452,192 km (0.108 R)
• M13: 10,010,940 km (0.059 R)
• M14: 10,979,437 km (0.059 R)
• M15: 11,523,524 km (0.051 R)
• M16: 11,971,719 km (0.118 R)
• M17: 12,626,509 km (0.081 R)
• M18: 13,715,582 km (0.108 R)
• M19: 14,219,278 km (0.072 R)

Planet 10 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.4

Radius: 8.9

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.75 AU - 5.17 AU

Year: 6281 Days

Day: 8.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,203,629 km

• M1: 117,135 km (0.083 R)
• M2: 1,023,698 km (0.108 R)
• M3: 1,406,669 km (0.101 R)
• M4: 1,818,811 km (0.109 R)
• M5: 2,612,577 km (0.12 R)
• M6: 3,032,648 km (0.067 R)
• M7: 3,768,370 km (0.12 R)
• M8: 5,479,321 km (0.067 R)
• M9: 6,630,327 km (0.043 R)
• M10: 7,246,222 km (0.082 R)
• M11: 7,654,624 km (0.034 R)
• M12: 8,742,799 km (0.08 R)
• M13: 13,066,776 km (0.083 R)
• M14: 13,775,271 km (0.097 R)
• M15: 14,402,535 km (0.118 R)
• M16: 14,777,278 km (0.098 R)
• M17: 19,210,311 km (0.053 R)
• M18: 21,414,636 km (0.088 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 450 - 12,483 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit