🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.84 AU - 1.32 AU

Year: 425 Days

Day: 25 Hours

Environment

Temp: 10 °C

Axial Tilt: 6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.43

Radius: 0.71

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.02 AU - 1.14 AU

Year: 425 Days

Day: 27.4 Hours

Environment

Temp: 2 °C

Axial Tilt: 0.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 98,282,240 km

• M1: 61,186 km (0.119 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.03 AU - 1.47 AU

Year: 529 Days

Day: 46 Hours

Environment

Temp: -36 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.73 AU - 1.93 AU

Year: 938 Days

Day: 19.3 Hours

Environment

Temp: -71 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.82 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.6

Radius: 12.3

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.86 AU - 8.74 AU

Year: 8251 Days

Day: 5.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 98,282,240 km

• M1: 153,188 km (0.067 R)
• M2: 598,840 km (0.082 R)
• M3: 1,281,455 km (0.109 R)
• M4: 2,194,302 km (0.089 R)
• M5: 2,733,303 km (0.104 R)
• M6: 3,222,488 km (0.102 R)
• M7: 4,810,918 km (0.062 R)
• M8: 5,965,365 km (0.063 R)
• M9: 6,571,086 km (0.083 R)
• M10: 7,217,499 km (0.088 R)
• M11: 9,603,435 km (0.082 R)
• M12: 10,386,580 km (0.083 R)
• M13: 11,371,233 km (0.117 R)
• M14: 11,804,020 km (0.076 R)
• M15: 13,346,823 km (0.048 R)
• M16: 18,929,217 km (0.1 R)
• M17: 19,847,449 km (0.116 R)
• M18: 20,317,635 km (0.097 R)
• M19: 21,607,767 km (0.063 R)
• M20: 22,357,103 km (0.028 R)
• M21: 23,995,947 km (0.071 R)
• M22: 27,126,133 km (0.073 R)
• M23: 27,900,452 km (0.116 R)
• M24: 31,356,611 km (0.112 R)
• M25: 38,497,516 km (0.113 R)
• M26: 40,469,814 km (0.057 R)
• M27: 43,817,216 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.4

Radius: 12.6

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 7.77 AU - 11.37 AU

Year: 11213 Days

Day: 5.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 98,282,240 km

• M1: 157,078 km (0.033 R)
• M2: 592,707 km (0.106 R)
• M3: 1,175,839 km (0.095 R)
• M4: 1,607,728 km (0.118 R)
• M5: 2,460,885 km (0.114 R)
• M6: 2,969,817 km (0.112 R)
• M7: 3,692,674 km (0.082 R)
• M8: 4,529,824 km (0.114 R)
• M9: 5,425,765 km (0.106 R)
• M10: 7,177,556 km (0.047 R)
• M11: 7,648,939 km (0.083 R)
• M12: 8,874,295 km (0.076 R)
• M13: 9,983,863 km (0.044 R)
• M14: 11,981,443 km (0.064 R)
• M15: 13,335,902 km (0.08 R)
• M16: 13,749,540 km (0.107 R)
• M17: 23,593,529 km (0.091 R)
• M18: 24,550,656 km (0.089 R)
• M19: 28,737,452 km (0.059 R)
• M20: 30,947,910 km (0.118 R)
• M21: 32,200,194 km (0.104 R)
• M22: 32,946,238 km (0.089 R)
• M23: 35,141,288 km (0.079 R)
• M24: 36,504,124 km (0.075 R)
• M25: 38,614,053 km (0.114 R)
• M26: 40,433,612 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 849.8

Radius: 6.4

Gravity: 20.75 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 14.26 AU - 19.58 AU

Year: 26360 Days

Day: 16.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 98,282,240 km

• M1: 79,885 km (0.101 R)
• M2: 285,582 km (0.092 R)
• M3: 588,069 km (0.119 R)
• M4: 913,295 km (0.095 R)
• M5: 1,125,275 km (0.088 R)
• M6: 1,420,282 km (0.084 R)
• M7: 2,549,746 km (0.096 R)
• M8: 7,618,122 km (0.082 R)
• M9: 8,051,956 km (0.074 R)
• M10: 9,889,766 km (0.115 R)
• M11: 10,537,824 km (0.116 R)
• M12: 11,492,108 km (0.102 R)
• M13: 13,967,504 km (0.078 R)
• M14: 16,507,377 km (0.094 R)
• M15: 17,511,029 km (0.092 R)
• M16: 19,739,888 km (0.072 R)
• M17: 20,043,871 km (0.085 R)
• M18: 22,151,256 km (0.089 R)
• M19: 23,597,419 km (0.082 R)
• M20: 26,308,581 km (0.107 R)
• M21: 29,220,354 km (0.112 R)
• M22: 29,880,679 km (0.064 R)
• M23: 42,342,929 km (0.106 R)
• M24: 46,681,866 km (0.1 R)
• M25: 47,402,479 km (0.061 R)
• M26: 50,927,154 km (0.106 R)
• M27: 51,499,217 km (0.106 R)
• M28: 66,546,668 km (0.057 R)
• M29: 68,380,140 km (0.058 R)
• M30: 78,561,023 km (0.106 R)
• M31: 85,612,468 km (0.109 R)
• M32: 89,984,017 km (0.077 R)
• M33: 90,540,670 km (0.104 R)
• M34: 92,224,544 km (0.091 R)
• M35: 93,358,496 km (0.088 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 20,385 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit