🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.56 AU - 0.72 AU

Year: 336 Days

Day: 32.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 19 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.8

Radius: 11.4

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.92 AU - 1.26 AU

Year: 747 Days

Day: 5.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,065,551 km

• M1: 142,268 km (0.071 R)
• M2: 503,995 km (0.119 R)
• M3: 941,270 km (0.088 R)
• M4: 1,360,742 km (0.062 R)
• M5: 1,750,893 km (0.069 R)
• M6: 2,147,777 km (0.093 R)
• M7: 2,571,887 km (0.118 R)
• M8: 3,203,489 km (0.118 R)
• M9: 4,193,677 km (0.105 R)
• M10: 5,908,667 km (0.091 R)
• M11: 6,922,941 km (0.115 R)
• M12: 7,346,153 km (0.103 R)
• M13: 7,977,306 km (0.111 R)

Asteroid Belt

Center: 1.4 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.3

Radius: 14.2

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.3 AU - 2.1 AU

Year: 1454 Days

Day: 6.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,065,551 km

• M1: 176,675 km (0.053 R)
• M2: 772,075 km (0.09 R)
• M3: 1,421,329 km (0.098 R)
• M4: 2,046,349 km (0.12 R)
• M5: 2,799,724 km (0.106 R)
• M6: 3,545,320 km (0.108 R)
• M7: 4,251,123 km (0.081 R)
• M8: 5,033,370 km (0.069 R)
• M9: 5,551,128 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.8

Radius: 11.5

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.17 AU - 2.67 AU

Year: 2470 Days

Day: 11.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,065,551 km

• M1: 143,016 km (0.082 R)
• M2: 509,381 km (0.101 R)
• M3: 1,007,093 km (0.072 R)
• M4: 1,388,418 km (0.11 R)
• M5: 1,923,230 km (0.065 R)
• M6: 2,418,399 km (0.049 R)
• M7: 3,121,210 km (0.113 R)
• M8: 3,564,020 km (0.057 R)
• M9: 4,105,115 km (0.084 R)
• M10: 4,932,840 km (0.11 R)
• M11: 5,307,433 km (0.117 R)
• M12: 6,315,125 km (0.092 R)
• M13: 6,784,413 km (0.091 R)
• M14: 7,911,035 km (0.057 R)
• M15: 8,519,300 km (0.096 R)
• M16: 9,456,381 km (0.099 R)
• M17: 10,247,305 km (0.103 R)
• M18: 10,677,249 km (0.113 R)
• M19: 11,496,746 km (0.047 R)
• M20: 12,277,647 km (0.039 R)
• M21: 12,969,088 km (0.053 R)
• M22: 13,901,981 km (0.078 R)
• M23: 14,429,463 km (0.112 R)
• M24: 15,153,367 km (0.114 R)
• M25: 15,665,141 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.7

Radius: 8.8

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.26 AU - 3.56 AU

Year: 3256 Days

Day: 6 Hours

Environment

Temp: -199 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 40,065,551 km

• M1: 109,506 km (0.063 R)
• M2: 740,809 km (0.111 R)
• M3: 1,466,658 km (0.09 R)
• M4: 1,891,067 km (0.094 R)
• M5: 2,307,846 km (0.089 R)
• M6: 2,813,338 km (0.088 R)
• M7: 3,391,085 km (0.049 R)
• M8: 4,027,324 km (0.095 R)
• M9: 4,579,939 km (0.101 R)
• M10: 4,968,744 km (0.086 R)
• M11: 6,293,732 km (0.079 R)
• M12: 6,620,603 km (0.092 R)
• M13: 8,248,527 km (0.089 R)
• M14: 8,701,659 km (0.115 R)
• M15: 9,012,973 km (0.094 R)
• M16: 9,790,582 km (0.11 R)
• M17: 10,682,634 km (0.105 R)
• M18: 11,404,893 km (0.119 R)
• M19: 12,353,044 km (0.113 R)
• M20: 12,667,349 km (0.044 R)
• M21: 13,270,977 km (0.063 R)
• M22: 13,978,126 km (0.07 R)
• M23: 14,448,910 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.5

Radius: 11

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 3.5 AU - 3.84 AU

Year: 4612 Days

Day: 11 Hours

Environment

Temp: -205 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,065,551 km

• M1: 137,630 km (0.055 R)
• M2: 543,190 km (0.077 R)
• M3: 1,145,620 km (0.065 R)
• M4: 1,926,970 km (0.058 R)
• M5: 2,469,412 km (0.091 R)
• M6: 3,388,392 km (0.112 R)
• M7: 4,029,867 km (0.117 R)
• M8: 4,542,240 km (0.078 R)
• M9: 7,123,103 km (0.042 R)
• M10: 7,964,142 km (0.114 R)
• M11: 8,330,956 km (0.113 R)
• M12: 9,739,420 km (0.077 R)
• M13: 14,367,978 km (0.113 R)
• M14: 14,912,963 km (0.091 R)
• M15: 15,851,839 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.7

Radius: 9.7

Gravity: 8.34 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.93 AU - 4.85 AU

Year: 6034 Days

Day: 14.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,065,551 km

• M1: 121,174 km (0.108 R)
• M2: 645,515 km (0.077 R)
• M3: 1,055,712 km (0.1 R)
• M4: 1,987,857 km (0.112 R)
• M5: 2,439,343 km (0.108 R)
• M6: 3,373,133 km (0.107 R)
• M7: 5,866,780 km (0.088 R)
• M8: 6,490,004 km (0.091 R)
• M9: 6,835,576 km (0.07 R)
• M10: 7,868,848 km (0.073 R)
• M11: 9,216,575 km (0.082 R)
• M12: 9,609,419 km (0.091 R)
• M13: 10,382,092 km (0.058 R)
• M14: 10,952,060 km (0.091 R)
• M15: 11,845,907 km (0.03 R)
• M16: 12,574,150 km (0.115 R)
• M17: 13,442,715 km (0.12 R)
• M18: 18,532,633 km (0.087 R)
• M19: 19,371,428 km (0.053 R)
• M20: 21,125,015 km (0.12 R)
• M21: 22,040,254 km (0.093 R)
• M22: 23,543,264 km (0.045 R)
• M23: 24,113,830 km (0.107 R)
• M24: 30,433,443 km (0.091 R)
• M25: 31,110,672 km (0.041 R)
• M26: 31,797,775 km (0.067 R)
• M27: 35,068,733 km (0.054 R)
• M28: 35,706,169 km (0.078 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.8

Radius: 10.1

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 4.01 AU - 6.45 AU

Year: 7846 Days

Day: 12.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,065,551 km

• M1: 132,693 km (0.106 R)
• M2: 803,640 km (0.103 R)
• M3: 1,151,006 km (0.051 R)
• M4: 1,560,904 km (0.114 R)
• M5: 2,838,171 km (0.072 R)
• M6: 3,301,176 km (0.112 R)
• M7: 5,549,333 km (0.107 R)
• M8: 6,379,900 km (0.101 R)
• M9: 8,709,588 km (0.083 R)
• M10: 9,370,661 km (0.072 R)
• M11: 9,876,601 km (0.115 R)
• M12: 10,303,853 km (0.1 R)
• M13: 10,644,786 km (0.12 R)
• M14: 11,246,618 km (0.092 R)
• M15: 11,977,404 km (0.085 R)
• M16: 17,246,241 km (0.117 R)
• M17: 23,128,280 km (0.074 R)
• M18: 24,052,645 km (0.073 R)
• M19: 24,653,729 km (0.062 R)
• M20: 25,441,063 km (0.086 R)
• M21: 26,335,658 km (0.074 R)
• M22: 29,533,911 km (0.086 R)
• M23: 31,531,641 km (0.061 R)
• M24: 34,045,783 km (0.118 R)
• M25: 34,694,589 km (0.047 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: 358 - 16,711 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit