🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.41 AU - 0.61 AU

Year: 239 Days

Day: 17.9 Hours

Environment

Temp: -119 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.4

Radius: 8.7

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.68 AU - 0.94 AU

Year: 478 Days

Day: 7.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,822,812 km

• M1: 108,159 km (0.044 R)
• M2: 446,998 km (0.041 R)
• M3: 773,870 km (0.117 R)
• M4: 1,092,214 km (0.029 R)
• M5: 1,465,910 km (0.113 R)
• M6: 2,345,844 km (0.05 R)
• M7: 2,737,192 km (0.116 R)
• M8: 3,182,695 km (0.077 R)
• M9: 3,470,371 km (0.044 R)
• M10: 4,653,990 km (0.12 R)
• M11: 5,321,944 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.8

Radius: 10.5

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.78 AU - 0.9 AU

Year: 505 Days

Day: 12.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 73.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,822,812 km

• M1: 130,599 km (0.102 R)
• M2: 593,754 km (0.071 R)
• M3: 939,774 km (0.109 R)
• M4: 1,275,621 km (0.072 R)
• M5: 1,603,091 km (0.114 R)
• M6: 2,013,587 km (0.111 R)
• M7: 2,403,888 km (0.08 R)
• M8: 2,756,790 km (0.119 R)
• M9: 3,660,510 km (0.104 R)
• M10: 4,016,404 km (0.032 R)
• M11: 4,471,181 km (0.118 R)
• M12: 5,091,863 km (0.096 R)
• M13: 6,101,499 km (0.119 R)
• M14: 6,624,044 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.4

Radius: 10.8

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.04 AU - 1.72 AU

Year: 1063 Days

Day: 10.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,822,812 km

• M1: 134,339 km (0.085 R)
• M2: 556,654 km (0.076 R)
• M3: 1,267,992 km (0.029 R)
• M4: 1,860,698 km (0.058 R)
• M5: 2,208,065 km (0.067 R)
• M6: 2,560,368 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.3

Radius: 8.9

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.47 AU - 1.49 AU

Year: 1181 Days

Day: 11.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,822,812 km

• M1: 110,702 km (0.059 R)
• M2: 422,165 km (0.062 R)
• M3: 711,039 km (0.105 R)
• M4: 1,261,858 km (0.092 R)
• M5: 1,851,722 km (0.09 R)
• M6: 2,274,336 km (0.099 R)
• M7: 2,976,100 km (0.061 R)
• M8: 5,506,249 km (0.054 R)
• M9: 5,955,042 km (0.048 R)
• M10: 8,024,579 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644

Radius: 13

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.29 AU - 2.93 AU

Year: 2766 Days

Day: 14 Hours

Environment

Temp: -191 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,822,812 km

• M1: 162,463 km (0.073 R)
• M2: 653,892 km (0.052 R)
• M3: 1,099,694 km (0.031 R)
• M4: 1,857,557 km (0.093 R)
• M5: 2,334,774 km (0.048 R)
• M6: 2,862,555 km (0.113 R)
• M7: 3,578,680 km (0.027 R)
• M8: 5,129,412 km (0.037 R)
• M9: 5,950,405 km (0.088 R)
• M10: 6,828,245 km (0.105 R)
• M11: 9,984,760 km (0.111 R)
• M12: 10,476,488 km (0.073 R)
• M13: 11,714,710 km (0.068 R)
• M14: 12,304,874 km (0.077 R)
• M15: 12,738,558 km (0.112 R)
• M16: 16,015,050 km (0.086 R)
• M17: 16,532,509 km (0.112 R)
• M18: 17,710,443 km (0.08 R)
• M19: 18,208,006 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.2

Radius: 11.1

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.28 AU - 4.72 AU

Year: 6262 Days

Day: 7.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,822,812 km

• M1: 138,079 km (0.077 R)
• M2: 862,133 km (0.111 R)
• M3: 1,240,914 km (0.038 R)
• M4: 1,896,303 km (0.077 R)
• M5: 2,573,083 km (0.119 R)
• M6: 3,278,737 km (0.05 R)
• M7: 4,036,599 km (0.099 R)
• M8: 4,560,790 km (0.086 R)
• M9: 5,045,787 km (0.089 R)
• M10: 5,446,709 km (0.082 R)
• M11: 6,881,652 km (0.102 R)
• M12: 7,705,936 km (0.105 R)
• M13: 9,379,188 km (0.093 R)
• M14: 11,820,925 km (0.059 R)
• M15: 12,172,330 km (0.061 R)
• M16: 14,147,770 km (0.072 R)
• M17: 16,576,641 km (0.06 R)
• M18: 17,530,776 km (0.086 R)
• M19: 17,922,722 km (0.09 R)
• M20: 20,904,208 km (0.104 R)
• M21: 23,014,436 km (0.119 R)
• M22: 25,595,896 km (0.043 R)
• M23: 28,275,045 km (0.097 R)
• M24: 30,192,740 km (0.114 R)
• M25: 31,614,668 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747.5

Radius: 7.9

Gravity: 11.98 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 7.34 AU - 9.78 AU

Year: 16429 Days

Day: 22 Hours

Environment

Temp: -225 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,822,812 km

• M1: 99,333 km (0.094 R)
• M2: 429,495 km (0.112 R)
• M3: 1,332,169 km (0.112 R)
• M4: 1,737,280 km (0.118 R)
• M5: 2,388,928 km (0.087 R)
• M6: 3,220,094 km (0.032 R)
• M7: 4,690,043 km (0.08 R)
• M8: 5,181,621 km (0.048 R)
• M9: 5,591,520 km (0.089 R)
• M10: 6,226,263 km (0.115 R)
• M11: 8,521,244 km (0.106 R)
• M12: 9,969,950 km (0.086 R)
• M13: 12,538,994 km (0.119 R)
• M14: 16,057,985 km (0.06 R)
• M15: 19,556,032 km (0.111 R)
• M16: 19,823,812 km (0.094 R)
• M17: 20,919,467 km (0.062 R)
• M18: 30,217,124 km (0.036 R)
• M19: 31,544,057 km (0.107 R)
• M20: 33,926,553 km (0.092 R)
• M21: 35,890,324 km (0.087 R)
• M22: 39,046,690 km (0.114 R)
• M23: 42,682,217 km (0.12 R)
• M24: 43,891,566 km (0.06 R)
• M25: 45,435,267 km (0.096 R)
• M26: 47,656,795 km (0.077 R)
• M27: 54,754,317 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 196.6

Radius: 3.8

Gravity: 13.61 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 7.56 AU - 10.26 AU

Year: 17447 Days

Day: 24.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,822,812 km

• M1: 332,406 km (0.099 R)
• M2: 521,498 km (0.083 R)
• M3: 641,326 km (0.07 R)
• M4: 806,333 km (0.051 R)
• M5: 1,106,875 km (0.055 R)
• M6: 1,707,360 km (0.085 R)
• M7: 2,060,860 km (0.107 R)
• M8: 2,598,964 km (0.09 R)
• M9: 2,911,474 km (0.107 R)
• M10: 3,789,314 km (0.031 R)
• M11: 3,946,541 km (0.046 R)
• M12: 4,590,560 km (0.089 R)
• M13: 6,520,822 km (0.086 R)
• M14: 6,939,696 km (0.109 R)
• M15: 7,457,304 km (0.034 R)
• M16: 7,872,738 km (0.101 R)
• M17: 11,009,655 km (0.077 R)
• M18: 14,377,103 km (0.11 R)
• M19: 16,779,346 km (0.089 R)
• M20: 17,491,282 km (0.082 R)
• M21: 19,904,595 km (0.073 R)
• M22: 20,863,966 km (0.085 R)
• M23: 28,557,934 km (0.107 R)
• M24: 29,061,630 km (0.042 R)
• M25: 29,264,784 km (0.113 R)
• M26: 36,867,198 km (0.093 R)
• M27: 39,046,690 km (0.12 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 343 - 16,176 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit