🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.65 AU - 0.65 AU

Year: 333 Days

Day: 18.1 Hours

Environment

Temp: -123 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,945,098 km

• M1: 35,455 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.3

Radius: 14.4

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.54 AU - 0.86 AU

Year: 372 Days

Day: 10.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,945,098 km

• M1: 179,069 km (0.117 R)
• M2: 732,581 km (0.098 R)
• M3: 1,222,514 km (0.099 R)
• M4: 1,743,713 km (0.048 R)
• M5: 2,414,510 km (0.032 R)
• M6: 2,988,517 km (0.068 R)
• M7: 4,980,412 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.6

Radius: 9.9

Gravity: 7.69 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.65 AU - 0.75 AU

Year: 372 Days

Day: 13.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,945,098 km

• M1: 123,119 km (0.082 R)
• M2: 500,405 km (0.086 R)
• M3: 958,474 km (0.09 R)
• M4: 1,270,984 km (0.067 R)
• M5: 1,723,966 km (0.114 R)
• M6: 2,045,751 km (0.06 R)
• M7: 2,454,153 km (0.061 R)
• M8: 2,905,939 km (0.105 R)
• M9: 3,518,692 km (0.109 R)
• M10: 3,837,185 km (0.072 R)
• M11: 5,341,841 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.5

Radius: 13.5

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.67 AU - 0.77 AU

Year: 388 Days

Day: 5.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,945,098 km

• M1: 167,849 km (0.073 R)
• M2: 1,258,268 km (0.067 R)
• M3: 1,681,929 km (0.085 R)
• M4: 2,103,645 km (0.049 R)
• M5: 2,550,195 km (0.072 R)
• M6: 3,007,516 km (0.11 R)
• M7: 4,143,113 km (0.117 R)
• M8: 4,594,001 km (0.081 R)
• M9: 5,277,663 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.9

Radius: 8.1

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.82 AU - 0.92 AU

Year: 516 Days

Day: 14.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,945,098 km

• M1: 102,475 km (0.031 R)
• M2: 359,184 km (0.114 R)
• M3: 867,668 km (0.098 R)
• M4: 1,125,275 km (0.115 R)
• M5: 1,672,654 km (0.07 R)
• M6: 2,094,370 km (0.091 R)
• M7: 2,362,599 km (0.112 R)
• M8: 2,697,698 km (0.111 R)
• M9: 3,083,362 km (0.115 R)
• M10: 3,474,111 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.8

Radius: 10.3

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.04 AU - 1.06 AU

Year: 684 Days

Day: 13.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,945,098 km

• M1: 128,205 km (0.076 R)
• M2: 527,781 km (0.115 R)
• M3: 1,032,973 km (0.119 R)
• M4: 1,463,217 km (0.093 R)
• M5: 1,830,928 km (0.078 R)
• M6: 2,279,124 km (0.116 R)
• M7: 2,600,759 km (0.065 R)
• M8: 2,975,502 km (0.063 R)
• M9: 3,312,994 km (0.119 R)
• M10: 3,702,398 km (0.106 R)
• M11: 4,136,232 km (0.077 R)
• M12: 4,528,627 km (0.077 R)
• M13: 5,541,704 km (0.054 R)
• M14: 6,001,418 km (0.061 R)
• M15: 6,525,010 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.8

Radius: 8.5

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.44 AU - 3.92 AU

Year: 3606 Days

Day: 10.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 91.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,945,098 km

• M1: 105,766 km (0.105 R)
• M2: 921,074 km (0.035 R)
• M3: 1,317,508 km (0.039 R)
• M4: 1,610,122 km (0.114 R)
• M5: 2,218,686 km (0.12 R)
• M6: 2,777,584 km (0.098 R)
• M7: 3,073,638 km (0.056 R)
• M8: 3,354,433 km (0.07 R)
• M9: 3,867,404 km (0.112 R)
• M10: 4,745,544 km (0.114 R)
• M11: 5,468,101 km (0.044 R)
• M12: 5,829,530 km (0.09 R)
• M13: 6,151,913 km (0.073 R)
• M14: 6,744,770 km (0.117 R)
• M15: 8,309,863 km (0.115 R)
• M16: 8,858,139 km (0.096 R)
• M17: 9,577,106 km (0.067 R)
• M18: 10,727,813 km (0.034 R)
• M19: 12,183,849 km (0.108 R)
• M20: 14,583,848 km (0.108 R)
• M21: 14,979,085 km (0.097 R)
• M22: 17,009,427 km (0.1 R)
• M23: 17,725,104 km (0.095 R)
• M24: 18,118,696 km (0.112 R)
• M25: 19,157,653 km (0.079 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.1

Radius: 10.6

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 4.18 AU - 5.2 AU

Year: 6458 Days

Day: 6.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 36,945,098 km

• M1: 131,945 km (0.112 R)
• M2: 653,593 km (0.058 R)
• M3: 1,145,770 km (0.042 R)
• M4: 1,515,875 km (0.119 R)
• M5: 1,863,690 km (0.115 R)
• M6: 2,315,476 km (0.106 R)
• M7: 2,762,923 km (0.088 R)
• M8: 3,246,423 km (0.097 R)
• M9: 3,599,474 km (0.059 R)
• M10: 4,872,851 km (0.11 R)
• M11: 6,223,271 km (0.059 R)
• M12: 6,949,419 km (0.06 R)
• M13: 7,692,472 km (0.064 R)
• M14: 8,820,889 km (0.085 R)
• M15: 9,336,852 km (0.099 R)
• M16: 10,148,570 km (0.117 R)
• M17: 10,860,506 km (0.077 R)
• M18: 12,016,150 km (0.111 R)
• M19: 14,102,591 km (0.067 R)
• M20: 16,807,620 km (0.116 R)
• M21: 17,736,324 km (0.055 R)
• M22: 18,351,171 km (0.117 R)
• M23: 18,698,836 km (0.085 R)
• M24: 20,653,033 km (0.117 R)
• M25: 21,333,704 km (0.106 R)
• M26: 23,547,154 km (0.099 R)
• M27: 24,373,532 km (0.11 R)
• M28: 27,964,779 km (0.088 R)
• M29: 28,704,540 km (0.099 R)
• M30: 36,177,403 km (0.041 R)
• M31: 36,945,139 km (0.062 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 445 - 20,041 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit