🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.66 AU - 0.76 AU

Year: 219 Days

Day: 46 Hours

Environment

Temp: 146 °C

Axial Tilt: 33.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.75 AU - 1.07 AU

Year: 317 Days

Day: 30.5 Hours

Environment

Temp: 104 °C

Axial Tilt: 3.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 86,215,590 km

• M1: 483,800 km (0.088 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.5 AU - 1.9 AU

Year: 810 Days

Day: 27 Hours

Environment

Temp: -52 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.95 AU - 2.89 AU

Year: 1375 Days

Day: 46.5 Hours

Environment

Temp: -90 °C

Axial Tilt: 42.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935

Radius: 12.4

Gravity: 6.08 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 10.07 AU - 11.07 AU

Year: 12552 Days

Day: 10.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 86,215,590 km

• M1: 160,219 km (0.044 R)
• M2: 725,699 km (0.046 R)
• M3: 1,153,699 km (0.05 R)
• M4: 1,722,470 km (0.086 R)
• M5: 2,351,978 km (0.08 R)
• M6: 2,915,214 km (0.113 R)
• M7: 3,871,742 km (0.07 R)
• M8: 4,376,635 km (0.09 R)
• M9: 7,194,910 km (0.042 R)
• M10: 7,961,599 km (0.101 R)
• M11: 8,982,903 km (0.047 R)
• M12: 10,590,931 km (0.057 R)
• M13: 13,285,787 km (0.042 R)
• M14: 13,888,666 km (0.11 R)
• M15: 14,720,730 km (0.107 R)
• M16: 16,714,570 km (0.067 R)
• M17: 18,058,857 km (0.086 R)
• M18: 19,388,782 km (0.064 R)
• M19: 23,285,357 km (0.118 R)
• M20: 28,659,810 km (0.056 R)
• M21: 34,057,601 km (0.054 R)
• M22: 36,994,955 km (0.104 R)
• M23: 38,727,747 km (0.107 R)
• M24: 39,408,567 km (0.084 R)
• M25: 41,640,418 km (0.038 R)
• M26: 45,445,140 km (0.118 R)
• M27: 48,211,055 km (0.095 R)
• M28: 54,585,421 km (0.032 R)
• M29: 56,132,263 km (0.05 R)
• M30: 56,829,090 km (0.086 R)
• M31: 60,582,351 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 285.7

Radius: 4.6

Gravity: 13.5 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 13.78 AU - 18.76 AU

Year: 23970 Days

Day: 20 Hours

Environment

Temp: -193 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 86,215,590 km

• M1: 57,146 km (0.105 R)
• M2: 252,521 km (0.068 R)
• M3: 463,005 km (0.109 R)
• M4: 1,070,672 km (0.09 R)
• M5: 1,375,552 km (0.105 R)
• M6: 1,787,545 km (0.04 R)
• M7: 3,356,378 km (0.109 R)
• M8: 5,046,684 km (0.103 R)
• M9: 6,925,484 km (0.094 R)
• M10: 7,368,443 km (0.118 R)
• M11: 7,596,879 km (0.107 R)
• M12: 15,854,083 km (0.112 R)
• M13: 21,386,063 km (0.068 R)
• M14: 22,704,918 km (0.114 R)
• M15: 26,132,055 km (0.116 R)
• M16: 28,300,925 km (0.037 R)
• M17: 31,176,795 km (0.083 R)
• M18: 33,488,531 km (0.082 R)
• M19: 35,651,716 km (0.072 R)
• M20: 37,099,823 km (0.108 R)
• M21: 44,479,037 km (0.052 R)
• M22: 45,084,161 km (0.077 R)
• M23: 46,310,714 km (0.119 R)
• M24: 50,123,515 km (0.055 R)
• M25: 53,456,555 km (0.049 R)
• M26: 58,006,275 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 514.9

Radius: 3.8

Gravity: 35.66 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 16.59 AU - 19.35 AU

Year: 27824 Days

Day: 23.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 86,215,590 km

• M1: 85,121 km (0.08 R)
• M2: 939,923 km (0.043 R)
• M3: 1,283,699 km (0.073 R)
• M4: 1,959,134 km (0.115 R)
• M5: 2,818,274 km (0.104 R)
• M6: 3,286,815 km (0.104 R)
• M7: 3,869,798 km (0.117 R)
• M8: 4,203,102 km (0.113 R)
• M9: 5,562,049 km (0.028 R)
• M10: 11,680,452 km (0.105 R)
• M11: 12,303,527 km (0.096 R)
• M12: 12,587,464 km (0.105 R)
• M13: 13,168,353 km (0.073 R)
• M14: 16,600,128 km (0.064 R)
• M15: 17,565,034 km (0.11 R)
• M16: 20,983,645 km (0.054 R)
• M17: 29,984,649 km (0.114 R)
• M18: 32,884,155 km (0.074 R)
• M19: 36,109,485 km (0.116 R)
• M20: 37,723,945 km (0.074 R)
• M21: 41,889,498 km (0.089 R)
• M22: 47,906,175 km (0.096 R)
• M23: 59,775,120 km (0.083 R)
• M24: 64,767,351 km (0.053 R)
• M25: 64,981,276 km (0.061 R)
• M26: 69,805,508 km (0.107 R)
• M27: 76,522,004 km (0.075 R)
• M28: 80,900,135 km (0.106 R)
• M29: 85,699,683 km (0.101 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: 286 - 16,211 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit