🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.3

Radius: 13.6

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.58 AU - 0.74 AU

Year: 358 Days

Day: 6.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 76,965,377 km

• M1: 173,833 km (0.105 R)
• M2: 787,034 km (0.075 R)
• M3: 1,421,030 km (0.064 R)
• M4: 2,333,876 km (0.051 R)
• M5: 2,905,041 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.9

Radius: 12.9

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.31 AU - 1.33 AU

Year: 1011 Days

Day: 12.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,965,377 km

• M1: 160,519 km (0.104 R)
• M2: 576,999 km (0.062 R)
• M3: 1,053,468 km (0.115 R)
• M4: 1,541,756 km (0.067 R)
• M5: 2,028,547 km (0.089 R)
• M6: 2,654,165 km (0.064 R)
• M7: 3,195,111 km (0.056 R)
• M8: 3,778,244 km (0.084 R)
• M9: 4,895,890 km (0.096 R)
• M10: 5,372,808 km (0.117 R)
• M11: 7,184,288 km (0.107 R)
• M12: 8,428,643 km (0.098 R)
• M13: 9,518,015 km (0.034 R)
• M14: 10,449,112 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.9

Radius: 9.7

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.38 AU - 2.04 AU

Year: 1491 Days

Day: 12.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,965,377 km

• M1: 121,025 km (0.034 R)
• M2: 463,753 km (0.105 R)
• M3: 950,545 km (0.08 R)
• M4: 1,275,920 km (0.062 R)
• M5: 1,732,643 km (0.106 R)
• M6: 2,287,651 km (0.102 R)
• M7: 3,211,567 km (0.026 R)
• M8: 4,233,470 km (0.1 R)
• M9: 4,855,648 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.9

Radius: 13.5

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.87 AU - 2.77 AU

Year: 2356 Days

Day: 10.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,965,377 km

• M1: 181,013 km (0.108 R)
• M2: 612,902 km (0.079 R)
• M3: 1,343,389 km (0.118 R)
• M4: 3,149,783 km (0.111 R)
• M5: 3,603,663 km (0.104 R)
• M6: 4,341,181 km (0.083 R)
• M7: 6,433,307 km (0.105 R)
• M8: 7,269,110 km (0.069 R)
• M9: 7,700,700 km (0.098 R)
• M10: 9,692,147 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.4

Radius: 12.3

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.24 AU - 5.54 AU

Year: 7211 Days

Day: 9 Hours

Environment

Temp: -224 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 76,965,377 km

• M1: 153,039 km (0.101 R)
• M2: 797,955 km (0.117 R)
• M3: 1,206,956 km (0.119 R)
• M4: 1,732,194 km (0.066 R)
• M5: 2,236,488 km (0.117 R)
• M6: 2,958,597 km (0.112 R)
• M7: 3,453,916 km (0.071 R)
• M8: 4,183,205 km (0.101 R)
• M9: 5,529,736 km (0.105 R)
• M10: 6,285,953 km (0.065 R)
• M11: 9,371,858 km (0.068 R)
• M12: 9,969,950 km (0.092 R)
• M13: 10,398,698 km (0.057 R)
• M14: 10,790,195 km (0.12 R)
• M15: 11,812,397 km (0.099 R)
• M16: 12,620,525 km (0.118 R)
• M17: 13,236,420 km (0.077 R)
• M18: 14,227,505 km (0.099 R)
• M19: 15,080,213 km (0.094 R)
• M20: 15,773,899 km (0.027 R)
• M21: 19,271,646 km (0.104 R)
• M22: 20,851,550 km (0.078 R)
• M23: 23,422,838 km (0.08 R)
• M24: 24,698,010 km (0.068 R)
• M25: 25,751,029 km (0.081 R)
• M26: 28,993,414 km (0.12 R)
• M27: 32,498,791 km (0.093 R)
• M28: 34,084,080 km (0.056 R)
• M29: 35,059,757 km (0.115 R)
• M30: 37,522,886 km (0.049 R)
• M31: 39,503,562 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.9

Radius: 9.2

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 4.48 AU - 5.68 AU

Year: 7635 Days

Day: 13.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,965,377 km

• M1: 114,442 km (0.083 R)
• M2: 408,402 km (0.073 R)
• M3: 768,484 km (0.115 R)
• M4: 1,143,676 km (0.103 R)
• M5: 1,556,267 km (0.11 R)
• M6: 1,912,010 km (0.117 R)
• M7: 2,807,952 km (0.042 R)
• M8: 4,029,269 km (0.078 R)
• M9: 6,258,577 km (0.086 R)
• M10: 6,767,658 km (0.082 R)
• M11: 11,183,937 km (0.099 R)
• M12: 11,554,940 km (0.104 R)
• M13: 12,321,629 km (0.114 R)
• M14: 12,969,238 km (0.117 R)
• M15: 16,255,753 km (0.09 R)
• M16: 16,732,223 km (0.042 R)
• M17: 17,034,710 km (0.075 R)
• M18: 19,789,106 km (0.079 R)
• M19: 20,816,095 km (0.069 R)
• M20: 21,806,134 km (0.115 R)
• M21: 22,094,708 km (0.097 R)
• M22: 26,817,961 km (0.104 R)
• M23: 27,651,521 km (0.116 R)
• M24: 28,074,733 km (0.109 R)

Asteroid Belt

Center: 6.29 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 7.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 123.1

Radius: 6.7

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 6.29 AU - 8.72 AU

Year: 13697 Days

Day: 20.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,965,377 km

• M1: 88,263 km (0.1 R)
• M2: 515,215 km (0.108 R)
• M3: 911,799 km (0.079 R)
• M4: 1,246,898 km (0.076 R)
• M5: 1,838,259 km (0.11 R)
• M6: 2,513,693 km (0.105 R)
• M7: 3,494,307 km (0.056 R)
• M8: 3,879,821 km (0.088 R)
• M9: 5,009,584 km (0.095 R)
• M10: 5,411,105 km (0.084 R)
• M11: 6,442,731 km (0.072 R)
• M12: 8,930,095 km (0.094 R)
• M13: 12,044,125 km (0.028 R)
• M14: 13,296,708 km (0.068 R)
• M15: 13,622,980 km (0.103 R)
• M16: 15,875,176 km (0.069 R)
• M17: 17,249,532 km (0.062 R)
• M18: 19,042,313 km (0.086 R)
• M19: 21,695,730 km (0.118 R)
• M20: 22,529,888 km (0.068 R)
• M21: 24,585,961 km (0.079 R)
• M22: 26,764,106 km (0.084 R)
• M23: 28,077,426 km (0.11 R)
• M24: 29,341,528 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 751.9

Radius: 3.7

Gravity: 54.92 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 8.27 AU - 12.03 AU

Year: 21564 Days

Day: 23.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 76,965,377 km

• M1: 49,816 km (0.069 R)
• M2: 168,148 km (0.093 R)
• M3: 594,053 km (0.097 R)
• M4: 912,397 km (0.11 R)
• M5: 1,350,420 km (0.119 R)
• M6: 1,856,659 km (0.095 R)
• M7: 2,956,652 km (0.09 R)
• M8: 3,433,122 km (0.104 R)
• M9: 4,361,077 km (0.113 R)
• M10: 4,976,523 km (0.092 R)
• M11: 5,689,357 km (0.028 R)
• M12: 7,217,050 km (0.107 R)
• M13: 7,713,715 km (0.072 R)
• M14: 8,555,203 km (0.114 R)
• M15: 8,941,914 km (0.062 R)
• M16: 9,340,143 km (0.086 R)
• M17: 9,514,425 km (0.113 R)
• M18: 10,050,284 km (0.099 R)
• M19: 10,294,727 km (0.053 R)
• M20: 11,051,991 km (0.1 R)
• M21: 15,081,410 km (0.071 R)
• M22: 16,814,651 km (0.044 R)
• M23: 20,087,104 km (0.056 R)
• M24: 21,066,073 km (0.116 R)
• M25: 25,076,792 km (0.087 R)
• M26: 29,071,653 km (0.092 R)
• M27: 35,544,304 km (0.083 R)
• M28: 38,589,519 km (0.076 R)
• M29: 39,642,089 km (0.114 R)
• M30: 39,793,931 km (0.077 R)
• M31: 46,530,323 km (0.106 R)
• M32: 54,174,475 km (0.116 R)
• M33: 54,737,113 km (0.117 R)
• M34: 55,873,758 km (0.104 R)
• M35: 57,608,195 km (0.118 R)
• M36: 67,251,872 km (0.104 R)
• M37: 69,875,669 km (0.092 R)
• M38: 78,633,278 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 516.2

Radius: 7.9

Gravity: 8.27 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 9.62 AU - 11.84 AU

Year: 23438 Days

Day: 21.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,965,377 km

• M1: 121,324 km (0.026 R)
• M2: 443,558 km (0.097 R)
• M3: 713,133 km (0.089 R)
• M4: 2,322,357 km (0.111 R)
• M5: 3,337,678 km (0.096 R)
• M6: 5,916,147 km (0.087 R)
• M7: 6,425,378 km (0.053 R)
• M8: 9,031,373 km (0.035 R)
• M9: 13,168,053 km (0.062 R)
• M10: 13,888,666 km (0.09 R)
• M11: 15,018,579 km (0.053 R)
• M12: 17,204,653 km (0.068 R)
• M13: 17,631,605 km (0.08 R)
• M14: 18,506,603 km (0.106 R)
• M15: 23,633,621 km (0.11 R)
• M16: 34,376,693 km (0.056 R)
• M17: 37,139,766 km (0.083 R)
• M18: 40,196,798 km (0.083 R)
• M19: 44,688,325 km (0.095 R)
• M20: 55,575,908 km (0.058 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 150 - 13,852 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit