🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.57 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.96 AU - 1.3 AU

Year: 453 Days

Day: 37.7 Hours

Environment

Temp: -9 °C

Axial Tilt: 27.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 48,256,006 km

• M1: 16,007 km (0.038 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.17 AU - 1.33 AU

Year: 526 Days

Day: 35.1 Hours

Environment

Temp: -22 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.75 AU - 1.87 AU

Year: 917 Days

Day: 41.1 Hours

Environment

Temp: -63 °C

Axial Tilt: 43.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.09 AU - 2.37 AU

Year: 1255 Days

Day: 39.9 Hours

Environment

Temp: -93 °C

Axial Tilt: 8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981

Radius: 8.4

Gravity: 13.9 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 4.71 AU - 5.39 AU

Year: 4275 Days

Day: 9 Hours

Environment

Temp: -156 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 48,256,006 km

• M1: 104,419 km (0.094 R)
• M2: 399,726 km (0.098 R)
• M3: 782,546 km (0.027 R)
• M4: 1,316,162 km (0.109 R)
• M5: 1,848,282 km (0.088 R)
• M6: 2,210,458 km (0.118 R)
• M7: 2,585,201 km (0.084 R)
• M8: 3,256,895 km (0.112 R)
• M9: 4,862,978 km (0.072 R)
• M10: 5,356,651 km (0.1 R)
• M11: 5,913,753 km (0.038 R)
• M12: 6,285,055 km (0.076 R)
• M13: 6,573,779 km (0.095 R)
• M14: 7,818,284 km (0.088 R)
• M15: 8,380,622 km (0.065 R)
• M16: 10,012,585 km (0.108 R)
• M17: 10,857,514 km (0.084 R)
• M18: 11,991,915 km (0.052 R)
• M19: 12,337,187 km (0.084 R)
• M20: 13,784,995 km (0.102 R)
• M21: 14,549,889 km (0.079 R)
• M22: 15,632,977 km (0.119 R)
• M23: 17,767,141 km (0.097 R)
• M24: 20,365,805 km (0.116 R)
• M25: 23,976,948 km (0.078 R)
• M26: 25,404,262 km (0.072 R)
• M27: 30,024,891 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.8

Radius: 12.4

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.66 AU - 6.78 AU

Year: 5154 Days

Day: 6.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,256,006 km

• M1: 154,235 km (0.119 R)
• M2: 729,589 km (0.106 R)
• M3: 1,155,793 km (0.092 R)
• M4: 1,579,006 km (0.097 R)
• M5: 2,096,016 km (0.109 R)
• M6: 3,493,110 km (0.097 R)
• M7: 4,984,003 km (0.077 R)
• M8: 5,966,561 km (0.093 R)
• M9: 6,759,281 km (0.074 R)
• M10: 7,208,224 km (0.057 R)
• M11: 8,225,190 km (0.078 R)
• M12: 9,367,819 km (0.088 R)
• M13: 9,893,655 km (0.088 R)
• M14: 11,040,323 km (0.068 R)
• M15: 12,081,225 km (0.077 R)
• M16: 13,973,788 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.8

Radius: 8.5

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 5.71 AU - 7.87 AU

Year: 6665 Days

Day: 13.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,256,006 km

• M1: 136,583 km (0.074 R)
• M2: 420,071 km (0.09 R)
• M3: 829,371 km (0.095 R)
• M4: 1,106,127 km (0.092 R)
• M5: 1,741,918 km (0.106 R)
• M6: 3,537,990 km (0.115 R)
• M7: 3,935,322 km (0.116 R)
• M8: 4,388,454 km (0.12 R)
• M9: 7,305,014 km (0.07 R)
• M10: 9,012,225 km (0.12 R)
• M11: 10,538,572 km (0.109 R)
• M12: 10,872,923 km (0.107 R)
• M13: 12,177,715 km (0.069 R)
• M14: 12,706,394 km (0.116 R)
• M15: 16,331,749 km (0.026 R)
• M16: 19,005,063 km (0.111 R)
• M17: 21,572,312 km (0.113 R)
• M18: 22,190,002 km (0.104 R)
• M19: 22,740,073 km (0.059 R)
• M20: 29,311,758 km (0.078 R)
• M21: 29,974,028 km (0.065 R)
• M22: 30,356,998 km (0.113 R)
• M23: 31,230,500 km (0.115 R)
• M24: 32,020,826 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.8

Radius: 10

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 9.93 AU - 11.13 AU

Year: 12873 Days

Day: 14.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,256,006 km

• M1: 125,363 km (0.071 R)
• M2: 465,100 km (0.077 R)
• M3: 1,262,157 km (0.068 R)
• M4: 1,628,822 km (0.036 R)
• M5: 2,066,695 km (0.085 R)
• M6: 2,602,105 km (0.112 R)
• M7: 6,471,604 km (0.048 R)
• M8: 7,169,029 km (0.053 R)
• M9: 10,995,743 km (0.082 R)
• M10: 20,026,517 km (0.113 R)
• M11: 21,336,546 km (0.108 R)
• M12: 26,565,590 km (0.118 R)
• M13: 34,978,974 km (0.072 R)
• M14: 39,341,098 km (0.115 R)
• M15: 39,720,179 km (0.07 R)
• M16: 40,357,466 km (0.063 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 454 - 16,531 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit