🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.63 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.05 AU - 1.45 AU

Year: 521 Days

Day: 29.6 Hours

Environment

Temp: 3 °C

Axial Tilt: 5.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 90,262,735 km

• M1: 634,445 km (0.106 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.15 AU - 1.51 AU

Year: 572 Days

Day: 35.5 Hours

Environment

Temp: -32 °C

Axial Tilt: 42.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.52 AU - 2.94 AU

Year: 1682 Days

Day: 28 Hours

Environment

Temp: -95 °C

Axial Tilt: 59.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.77 AU - 3.57 AU

Year: 2104 Days

Day: 16.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 42.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 90,262,735 km

• M1: 26,030 km (0.107 R)
• M2: 172,636 km (0.078 R)

Asteroid Belt

Center: 4.37 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.9

Radius: 8.4

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 5.41 AU - 5.73 AU

Year: 4900 Days

Day: 13.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 90,262,735 km

• M1: 146,008 km (0.091 R)
• M2: 482,154 km (0.118 R)
• M3: 997,219 km (0.109 R)
• M4: 1,280,857 km (0.034 R)
• M5: 1,786,647 km (0.117 R)
• M6: 2,171,563 km (0.107 R)
• M7: 3,074,984 km (0.074 R)
• M8: 4,802,391 km (0.108 R)
• M9: 5,107,271 km (0.078 R)
• M10: 7,307,407 km (0.103 R)
• M11: 7,806,765 km (0.069 R)
• M12: 8,295,501 km (0.098 R)
• M13: 9,442,618 km (0.061 R)
• M14: 10,035,324 km (0.102 R)
• M15: 12,834,450 km (0.072 R)
• M16: 13,841,393 km (0.058 R)
• M17: 14,172,603 km (0.03 R)
• M18: 15,960,148 km (0.074 R)
• M19: 17,178,024 km (0.088 R)
• M20: 18,060,951 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804

Radius: 12.5

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 6.09 AU - 8.95 AU

Year: 7687 Days

Day: 9.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 90,262,735 km

• M1: 155,731 km (0.065 R)
• M2: 552,615 km (0.1 R)
• M3: 960,119 km (0.069 R)
• M4: 1,702,424 km (0.039 R)
• M5: 2,349,285 km (0.059 R)
• M6: 3,047,757 km (0.098 R)
• M7: 3,707,783 km (0.104 R)
• M8: 4,297,199 km (0.097 R)
• M9: 8,705,998 km (0.069 R)
• M10: 9,105,424 km (0.039 R)
• M11: 10,928,723 km (0.057 R)
• M12: 12,199,108 km (0.071 R)
• M13: 17,147,656 km (0.05 R)
• M14: 18,276,970 km (0.069 R)
• M15: 19,455,353 km (0.116 R)
• M16: 20,371,789 km (0.113 R)
• M17: 24,240,390 km (0.116 R)
• M18: 25,481,305 km (0.033 R)
• M19: 27,802,016 km (0.117 R)
• M20: 30,058,551 km (0.113 R)
• M21: 42,177,175 km (0.043 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.8

Radius: 9.6

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 6.12 AU - 9.9 AU

Year: 8451 Days

Day: 9.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 90,262,735 km

• M1: 119,977 km (0.102 R)
• M2: 452,234 km (0.061 R)
• M3: 761,304 km (0.072 R)
• M4: 1,423,873 km (0.116 R)
• M5: 1,818,661 km (0.106 R)
• M6: 3,291,602 km (0.105 R)
• M7: 6,120,797 km (0.109 R)
• M8: 7,463,587 km (0.12 R)
• M9: 9,714,138 km (0.091 R)
• M10: 10,888,631 km (0.083 R)
• M11: 15,346,797 km (0.074 R)
• M12: 17,049,370 km (0.114 R)
• M13: 19,677,206 km (0.075 R)
• M14: 21,483,451 km (0.104 R)
• M15: 22,770,441 km (0.103 R)
• M16: 23,538,627 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.4

Radius: 4.5

Gravity: 17.16 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 11.61 AU - 15.45 AU

Year: 18552 Days

Day: 17.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 90,262,735 km

• M1: 65,524 km (0.103 R)
• M2: 301,141 km (0.115 R)
• M3: 620,981 km (0.07 R)
• M4: 804,238 km (0.107 R)
• M5: 1,034,619 km (0.071 R)
• M6: 1,612,665 km (0.1 R)
• M7: 3,346,355 km (0.101 R)
• M8: 4,934,037 km (0.053 R)
• M9: 11,658,461 km (0.07 R)
• M10: 12,887,408 km (0.085 R)
• M11: 15,890,286 km (0.063 R)
• M12: 16,859,530 km (0.066 R)
• M13: 22,856,610 km (0.107 R)
• M14: 23,993,254 km (0.065 R)
• M15: 24,575,489 km (0.09 R)
• M16: 27,840,762 km (0.117 R)
• M17: 33,143,408 km (0.095 R)
• M18: 35,091,621 km (0.091 R)
• M19: 36,347,196 km (0.073 R)
• M20: 46,433,533 km (0.055 R)
• M21: 47,336,955 km (0.102 R)
• M22: 54,157,272 km (0.117 R)
• M23: 55,326,080 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 740.8

Radius: 4.9

Gravity: 30.85 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 13.18 AU - 19.7 AU

Year: 24849 Days

Day: 18.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 90,262,735 km

• M1: 89,310 km (0.058 R)
• M2: 377,735 km (0.102 R)
• M3: 1,074,711 km (0.056 R)
• M4: 1,403,826 km (0.085 R)
• M5: 1,797,269 km (0.109 R)
• M6: 2,105,440 km (0.114 R)
• M7: 2,853,579 km (0.073 R)
• M8: 3,995,011 km (0.084 R)
• M9: 4,704,404 km (0.082 R)
• M10: 5,704,915 km (0.117 R)
• M11: 6,323,352 km (0.089 R)
• M12: 6,507,956 km (0.051 R)
• M13: 7,383,702 km (0.041 R)
• M14: 7,902,956 km (0.061 R)
• M15: 9,545,990 km (0.058 R)
• M16: 9,912,355 km (0.088 R)
• M17: 10,869,183 km (0.091 R)
• M18: 12,525,830 km (0.083 R)
• M19: 13,188,099 km (0.033 R)
• M20: 21,767,238 km (0.081 R)
• M21: 22,082,890 km (0.028 R)
• M22: 23,596,072 km (0.109 R)
• M23: 27,556,377 km (0.111 R)
• M24: 37,660,067 km (0.077 R)
• M25: 39,345,586 km (0.119 R)
• M26: 42,866,372 km (0.063 R)
• M27: 49,071,094 km (0.028 R)
• M28: 51,823,844 km (0.082 R)
• M29: 52,574,825 km (0.1 R)
• M30: 67,810,620 km (0.114 R)
• M31: 70,529,263 km (0.061 R)
• M32: 73,791,992 km (0.064 R)
• M33: 75,460,308 km (0.118 R)
• M34: 84,439,471 km (0.072 R)
• M35: 84,958,127 km (0.071 R)
• M36: 87,583,719 km (0.077 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 258 - 11,922 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit