🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.5 AU - 0.66 AU

Year: 163 Days

Day: 26.5 Hours

Environment

Temp: 138 °C

Axial Tilt: 21.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 56,631,993 km

• M1: 53,855 km (0.09 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.72 AU - 1 AU

Year: 294 Days

Day: 32.2 Hours

Environment

Temp: 147 °C

Axial Tilt: 25.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.87 AU - 4.35 AU

Year: 2531 Days

Day: 27.8 Hours

Environment

Temp: -116 °C

Axial Tilt: 153.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,631,993 km

• M1: 800,947 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 3.85 AU - 3.89 AU

Year: 2809 Days

Day: 15.3 Hours

Environment

Temp: -119 °C

Axial Tilt: 13.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.4

Radius: 9.6

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 5.63 AU - 8.87 AU

Year: 7203 Days

Day: 11.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 56,631,993 km

• M1: 119,379 km (0.11 R)
• M2: 622,028 km (0.112 R)
• M3: 1,020,108 km (0.108 R)
• M4: 1,667,717 km (0.075 R)
• M5: 2,282,864 km (0.04 R)
• M6: 2,838,470 km (0.12 R)
• M7: 3,390,636 km (0.078 R)
• M8: 4,405,508 km (0.043 R)
• M9: 4,737,914 km (0.082 R)
• M10: 5,268,089 km (0.101 R)
• M11: 7,674,670 km (0.116 R)
• M12: 9,318,601 km (0.08 R)
• M13: 9,962,321 km (0.098 R)
• M14: 10,488,756 km (0.098 R)
• M15: 11,338,471 km (0.119 R)
• M16: 12,018,843 km (0.043 R)
• M17: 13,518,412 km (0.071 R)
• M18: 15,452,862 km (0.103 R)
• M19: 18,051,526 km (0.113 R)
• M20: 24,698,459 km (0.082 R)
• M21: 25,397,380 km (0.113 R)
• M22: 25,751,777 km (0.058 R)
• M23: 27,759,979 km (0.092 R)
• M24: 31,982,978 km (0.084 R)
• M25: 32,813,246 km (0.042 R)
• M26: 38,797,759 km (0.1 R)
• M27: 39,267,945 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.1

Radius: 14.9

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 10.22 AU - 12.34 AU

Year: 13978 Days

Day: 5.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,631,993 km

• M1: 185,352 km (0.045 R)
• M2: 1,042,099 km (0.089 R)
• M3: 1,524,402 km (0.032 R)
• M4: 2,235,142 km (0.106 R)
• M5: 3,088,897 km (0.102 R)
• M6: 3,893,285 km (0.054 R)
• M7: 4,361,227 km (0.056 R)
• M8: 5,921,832 km (0.115 R)
• M9: 6,544,308 km (0.055 R)
• M10: 9,640,087 km (0.064 R)
• M11: 10,174,151 km (0.117 R)
• M12: 11,596,378 km (0.113 R)
• M13: 12,262,687 km (0.095 R)
• M14: 15,619,214 km (0.086 R)
• M15: 19,293,787 km (0.103 R)
• M16: 20,666,347 km (0.087 R)
• M17: 23,223,723 km (0.099 R)
• M18: 23,701,688 km (0.095 R)
• M19: 29,849,562 km (0.089 R)
• M20: 30,528,886 km (0.043 R)
• M21: 33,958,717 km (0.098 R)
• M22: 39,505,506 km (0.096 R)
• M23: 41,015,847 km (0.035 R)
• M24: 45,479,548 km (0.092 R)
• M25: 50,257,105 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 187.8

Radius: 3.1

Gravity: 19.54 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 12.49 AU - 20.33 AU

Year: 24527 Days

Day: 24 Hours

Environment

Temp: -206 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 56,631,993 km

• M1: 38,596 km (0.099 R)
• M2: 154,535 km (0.086 R)
• M3: 331,509 km (0.063 R)
• M4: 451,786 km (0.05 R)
• M5: 632,949 km (0.041 R)
• M6: 830,717 km (0.085 R)
• M7: 2,570,540 km (0.043 R)
• M8: 2,745,570 km (0.081 R)
• M9: 2,882,003 km (0.085 R)
• M10: 3,046,860 km (0.099 R)
• M11: 3,268,115 km (0.118 R)
• M12: 3,369,842 km (0.092 R)
• M13: 3,526,471 km (0.066 R)
• M14: 4,201,606 km (0.119 R)
• M15: 4,506,785 km (0.058 R)
• M16: 4,826,626 km (0.102 R)
• M17: 5,765,502 km (0.099 R)
• M18: 6,778,579 km (0.099 R)
• M19: 7,240,836 km (0.116 R)
• M20: 9,402,974 km (0.112 R)
• M21: 11,720,844 km (0.082 R)
• M22: 12,385,357 km (0.088 R)
• M23: 14,666,575 km (0.091 R)
• M24: 14,943,780 km (0.066 R)
• M25: 16,235,109 km (0.061 R)
• M26: 17,755,023 km (0.111 R)
• M27: 21,605,074 km (0.118 R)
• M28: 22,971,501 km (0.113 R)
• M29: 26,586,384 km (0.063 R)
• M30: 29,014,357 km (0.115 R)
• M31: 30,675,043 km (0.045 R)
• M32: 33,462,052 km (0.085 R)
• M33: 33,942,410 km (0.106 R)
• M34: 39,133,756 km (0.041 R)
• M35: 40,475,499 km (0.097 R)
• M36: 46,595,548 km (0.051 R)
• M37: 50,422,411 km (0.086 R)
• M38: 52,170,612 km (0.066 R)
• M39: 54,618,931 km (0.077 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: 538 - 20,426 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit