🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.52 AU - 0.8 AU

Year: 228 Days

Day: 23 Hours

Environment

Temp: 8 °C

Axial Tilt: 10.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.67 AU - 0.67 AU

Year: 233 Days

Day: 35.6 Hours

Environment

Temp: 14 °C

Axial Tilt: 9.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.94 AU - 1.24 AU

Year: 483 Days

Day: 43.3 Hours

Environment

Temp: -68 °C

Axial Tilt: 51.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.02 AU - 2.3 AU

Year: 1348 Days

Day: 24.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 128.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,472,596 km

• M1: 1,589,029 km (0.098 R)

Asteroid Belt

Center: 3.09 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.7

Radius: 12.2

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.2 AU - 4.84 AU

Year: 3422 Days

Day: 11.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,472,596 km

• M1: 151,692 km (0.062 R)
• M2: 546,481 km (0.08 R)
• M3: 1,020,706 km (0.045 R)
• M4: 1,738,327 km (0.042 R)
• M5: 2,183,830 km (0.117 R)
• M6: 3,023,373 km (0.107 R)
• M7: 4,153,286 km (0.091 R)
• M8: 5,059,250 km (0.051 R)
• M9: 7,916,570 km (0.119 R)
• M10: 8,362,970 km (0.048 R)
• M11: 8,754,019 km (0.027 R)
• M12: 9,344,481 km (0.09 R)
• M13: 10,605,442 km (0.112 R)
• M14: 13,559,551 km (0.069 R)
• M15: 15,648,835 km (0.102 R)
• M16: 16,742,395 km (0.054 R)
• M17: 18,180,180 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.8

Radius: 9.8

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.15 AU - 4.95 AU

Year: 4121 Days

Day: 9.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,472,596 km

• M1: 124,914 km (0.049 R)
• M2: 628,161 km (0.056 R)
• M3: 1,557,613 km (0.097 R)
• M4: 2,733,303 km (0.093 R)
• M5: 3,688,036 km (0.068 R)
• M6: 6,498,382 km (0.084 R)
• M7: 11,126,940 km (0.026 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.3

Radius: 11.1

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 5.39 AU - 6.73 AU

Year: 6334 Days

Day: 5.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,472,596 km

• M1: 138,228 km (0.096 R)
• M2: 563,834 km (0.118 R)
• M3: 974,032 km (0.12 R)
• M4: 1,425,219 km (0.059 R)
• M5: 1,806,394 km (0.059 R)
• M6: 2,341,506 km (0.089 R)
• M7: 2,703,982 km (0.072 R)
• M8: 3,521,085 km (0.071 R)
• M9: 4,414,783 km (0.073 R)
• M10: 5,422,324 km (0.056 R)
• M11: 6,577,070 km (0.107 R)
• M12: 7,574,589 km (0.104 R)
• M13: 9,914,748 km (0.099 R)
• M14: 10,339,008 km (0.07 R)
• M15: 10,775,385 km (0.109 R)
• M16: 11,376,469 km (0.111 R)
• M17: 11,999,694 km (0.077 R)
• M18: 12,977,166 km (0.107 R)
• M19: 13,600,092 km (0.072 R)
• M20: 15,400,802 km (0.026 R)
• M21: 16,034,947 km (0.087 R)
• M22: 17,903,424 km (0.096 R)
• M23: 19,106,191 km (0.111 R)
• M24: 22,147,965 km (0.091 R)
• M25: 23,700,043 km (0.064 R)
• M26: 25,323,479 km (0.056 R)
• M27: 32,048,202 km (0.09 R)
• M28: 33,291,361 km (0.053 R)
• M29: 34,244,598 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 890.9

Radius: 4.1

Gravity: 53 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 11.22 AU - 11.52 AU

Year: 16279 Days

Day: 19.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 50,472,596 km

• M1: 52,958 km (0.096 R)
• M2: 225,145 km (0.111 R)
• M3: 425,606 km (0.081 R)
• M4: 821,442 km (0.111 R)
• M5: 1,141,282 km (0.096 R)
• M6: 1,605,484 km (0.103 R)
• M7: 1,761,365 km (0.079 R)
• M8: 2,164,980 km (0.09 R)
• M9: 2,511,898 km (0.046 R)
• M10: 2,746,767 km (0.113 R)
• M11: 2,894,719 km (0.109 R)
• M12: 3,260,635 km (0.112 R)
• M13: 3,598,278 km (0.098 R)
• M14: 4,342,826 km (0.068 R)
• M15: 5,683,971 km (0.117 R)
• M16: 7,185,635 km (0.085 R)
• M17: 9,480,167 km (0.064 R)
• M18: 10,883,544 km (0.07 R)
• M19: 11,698,853 km (0.076 R)
• M20: 12,353,044 km (0.062 R)
• M21: 12,621,572 km (0.11 R)
• M22: 19,465,675 km (0.112 R)
• M23: 19,737,793 km (0.115 R)
• M24: 26,056,060 km (0.099 R)
• M25: 29,369,802 km (0.082 R)
• M26: 30,330,968 km (0.046 R)
• M27: 31,437,095 km (0.063 R)
• M28: 33,082,073 km (0.096 R)
• M29: 35,858,909 km (0.053 R)
• M30: 37,373,737 km (0.113 R)
• M31: 38,787,287 km (0.062 R)
• M32: 47,367,174 km (0.072 R)
• M33: 48,024,357 km (0.039 R)
• M34: 50,372,296 km (0.054 R)
• M35: 51,401,529 km (0.108 R)
• M36: 51,747,699 km (0.025 R)
• M37: 59,953,740 km (0.036 R)
• M38: 63,863,481 km (0.054 R)
• M39: 69,195,747 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 477.4

Radius: 8

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 13.66 AU - 15.26 AU

Year: 23347 Days

Day: 17.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,472,596 km

• M1: 366,964 km (0.083 R)
• M2: 1,081,293 km (0.039 R)
• M3: 2,389,826 km (0.076 R)
• M4: 2,832,785 km (0.084 R)
• M5: 3,301,924 km (0.082 R)
• M6: 3,761,489 km (0.034 R)
• M7: 4,395,185 km (0.076 R)
• M8: 7,953,520 km (0.113 R)
• M9: 9,268,934 km (0.057 R)
• M10: 12,257,152 km (0.061 R)
• M11: 18,073,368 km (0.074 R)
• M12: 37,346,360 km (0.08 R)
• M13: 39,354,113 km (0.118 R)
• M14: 41,735,562 km (0.084 R)
• M15: 49,794,549 km (0.111 R)
• M16: 50,999,560 km (0.094 R)
• M17: 72,792,230 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88.1

Radius: 6.4

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 13.45 AU - 20.83 AU

Year: 30129 Days

Day: 20.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,472,596 km

• M1: 144,811 km (0.051 R)
• M2: 616,194 km (0.054 R)
• M3: 1,874,162 km (0.111 R)
• M4: 2,933,016 km (0.094 R)
• M5: 9,609,868 km (0.032 R)
• M6: 13,043,738 km (0.113 R)
• M7: 13,539,056 km (0.117 R)
• M8: 14,436,045 km (0.07 R)
• M9: 17,737,371 km (0.074 R)
• M10: 31,136,553 km (0.097 R)
• M11: 43,558,711 km (0.039 R)
• M12: 46,930,647 km (0.078 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: 547 - 17,888 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit