🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.9 AU - 1.5 AU

Year: 488 Days

Day: 32.6 Hours

Environment

Temp: -13 °C

Axial Tilt: 46.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 63,492,066 km

• M1: 46,675 km (0.087 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.14 AU - 2.18 AU

Year: 1177 Days

Day: 16.8 Hours

Environment

Temp: -87 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.28 AU - 2.42 AU

Year: 1336 Days

Day: 28.2 Hours

Environment

Temp: -93 °C

Axial Tilt: 70.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.63 AU - 3.03 AU

Year: 1766 Days

Day: 12.1 Hours

Environment

Temp: -93 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.62 AU - 3.12 AU

Year: 1803 Days

Day: 37.9 Hours

Environment

Temp: -105 °C

Axial Tilt: 12.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 3.99 AU - 4.91 AU

Year: 3481 Days

Day: 29.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 12.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.2

Radius: 9.6

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 4.91 AU - 7.33 AU

Year: 5615 Days

Day: 13.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,492,066 km

• M1: 119,379 km (0.077 R)
• M2: 504,294 km (0.066 R)
• M3: 959,521 km (0.064 R)
• M4: 1,691,204 km (0.066 R)
• M5: 2,346,143 km (0.093 R)
• M6: 3,349,496 km (0.108 R)
• M7: 4,736,717 km (0.092 R)
• M8: 5,667,964 km (0.056 R)
• M9: 6,294,480 km (0.12 R)
• M10: 7,753,209 km (0.044 R)
• M11: 8,417,124 km (0.085 R)
• M12: 8,744,744 km (0.087 R)
• M13: 9,938,535 km (0.102 R)
• M14: 11,951,075 km (0.117 R)
• M15: 12,458,810 km (0.112 R)
• M16: 16,256,053 km (0.109 R)
• M17: 16,936,873 km (0.095 R)
• M18: 19,344,650 km (0.092 R)
• M19: 21,698,872 km (0.087 R)
• M20: 24,311,300 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.4

Radius: 14.7

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 6.23 AU - 10.39 AU

Year: 8884 Days

Day: 13.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,492,066 km

• M1: 183,108 km (0.09 R)
• M2: 657,034 km (0.089 R)
• M3: 1,275,322 km (0.106 R)
• M4: 1,813,725 km (0.079 R)
• M5: 2,280,320 km (0.105 R)
• M6: 3,001,083 km (0.093 R)
• M7: 3,896,725 km (0.073 R)
• M8: 4,718,167 km (0.094 R)
• M9: 6,366,885 km (0.084 R)
• M10: 7,060,571 km (0.109 R)
• M11: 8,328,712 km (0.097 R)
• M12: 8,876,689 km (0.097 R)
• M13: 9,351,662 km (0.072 R)
• M14: 10,147,074 km (0.06 R)
• M15: 11,041,220 km (0.076 R)
• M16: 13,414,291 km (0.074 R)
• M17: 14,753,492 km (0.07 R)
• M18: 15,286,658 km (0.081 R)
• M19: 16,819,139 km (0.083 R)
• M20: 19,544,663 km (0.119 R)
• M21: 21,517,709 km (0.099 R)
• M22: 22,031,129 km (0.113 R)
• M23: 23,440,341 km (0.112 R)
• M24: 33,070,404 km (0.117 R)
• M25: 37,442,103 km (0.109 R)
• M26: 42,452,435 km (0.043 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 426.4

Radius: 4.6

Gravity: 20.15 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 11.55 AU - 16.35 AU

Year: 19323 Days

Day: 15.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 63,492,066 km

• M1: 58,642 km (0.109 R)
• M2: 379,979 km (0.109 R)
• M3: 1,001,558 km (0.056 R)
• M4: 1,264,700 km (0.054 R)
• M5: 2,021,067 km (0.11 R)
• M6: 2,594,775 km (0.072 R)
• M7: 4,365,565 km (0.105 R)
• M8: 4,591,159 km (0.098 R)
• M9: 5,314,764 km (0.089 R)
• M10: 5,915,100 km (0.12 R)
• M11: 7,294,093 km (0.079 R)
• M12: 9,554,816 km (0.071 R)
• M13: 10,611,127 km (0.102 R)
• M14: 11,317,229 km (0.068 R)
• M15: 11,743,134 km (0.06 R)
• M16: 13,019,203 km (0.079 R)
• M17: 15,322,263 km (0.074 R)
• M18: 15,470,065 km (0.094 R)
• M19: 18,544,302 km (0.118 R)
• M20: 20,625,507 km (0.108 R)
• M21: 21,815,409 km (0.06 R)
• M22: 22,953,699 km (0.088 R)
• M23: 23,832,886 km (0.062 R)
• M24: 25,244,940 km (0.116 R)
• M25: 25,762,549 km (0.045 R)
• M26: 26,181,572 km (0.094 R)
• M27: 27,793,788 km (0.061 R)
• M28: 28,792,205 km (0.118 R)
• M29: 31,452,055 km (0.111 R)
• M30: 35,161,334 km (0.116 R)
• M31: 45,534,749 km (0.087 R)
• M32: 47,545,345 km (0.069 R)
• M33: 47,859,949 km (0.104 R)
• M34: 50,100,327 km (0.04 R)
• M35: 50,753,022 km (0.116 R)
• M36: 51,411,403 km (0.111 R)
• M37: 53,931,080 km (0.107 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 530 - 10,995 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit