🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.77 AU - 0.87 AU

Year: 281 Days

Day: 16.3 Hours

Environment

Temp: 153 °C

Axial Tilt: 47.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 34,562,281 km

• M1: 726,148 km (0.105 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.85 AU - 1.21 AU

Year: 396 Days

Day: 16.5 Hours

Environment

Temp: 4 °C

Axial Tilt: 32.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.26 AU - 1.98 AU

Year: 781 Days

Day: 18.6 Hours

Environment

Temp: -56 °C

Axial Tilt: 31.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.51 AU - 2.35 AU

Year: 1016 Days

Day: 26.2 Hours

Environment

Temp: -69 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.03 AU - 2.53 AU

Year: 1304 Days

Day: 43.9 Hours

Environment

Temp: -87 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.09 AU - 2.97 AU

Year: 1524 Days

Day: 30.2 Hours

Environment

Temp: -99 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.17 AU - 3.41 AU

Year: 1765 Days

Day: 18.1 Hours

Environment

Temp: -111 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 34,562,281 km

• M1: 553,063 km (0.038 R)

Asteroid Belt

Center: 5.41 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.7

Radius: 11.4

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 6.18 AU - 9.88 AU

Year: 8618 Days

Day: 13.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 163.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 34,562,281 km

• M1: 153,338 km (0.059 R)
• M2: 394,490 km (0.08 R)
• M3: 465,549 km (0.096 R)
• M4: 698,173 km (0.118 R)
• M5: 775,665 km (0.117 R)
• M6: 884,273 km (0.042 R)
• M7: 1,012,927 km (0.108 R)
• M8: 1,242,261 km (0.053 R)
• M9: 1,322,595 km (0.041 R)
• M10: 1,626,877 km (0.109 R)
• M11: 2,482,427 km (0.107 R)
• M12: 2,773,993 km (0.053 R)
• M13: 3,076,630 km (0.063 R)
• M14: 3,390,187 km (0.101 R)
• M15: 3,573,893 km (0.056 R)
• M16: 3,714,066 km (0.03 R)
• M17: 3,903,756 km (0.116 R)
• M18: 4,668,800 km (0.107 R)
• M19: 4,899,629 km (0.097 R)
• M20: 5,029,480 km (0.048 R)
• M21: 6,589,637 km (0.078 R)
• M22: 7,377,419 km (0.047 R)
• M23: 7,466,879 km (0.114 R)
• M24: 7,676,914 km (0.118 R)
• M25: 8,133,487 km (0.075 R)
• M26: 8,536,354 km (0.097 R)
• M27: 8,630,301 km (0.084 R)
• M28: 9,393,998 km (0.115 R)
• M29: 9,523,400 km (0.105 R)
• M30: 10,278,870 km (0.104 R)
• M31: 10,445,671 km (0.098 R)
• M32: 11,122,003 km (0.088 R)
• M33: 11,396,515 km (0.11 R)
• M34: 11,777,541 km (0.095 R)
• M35: 12,588,062 km (0.026 R)
• M36: 12,695,025 km (0.085 R)
• M37: 12,838,190 km (0.069 R)
• M38: 13,489,240 km (0.046 R)
• M39: 13,708,700 km (0.034 R)
• M40: 14,003,109 km (0.099 R)
• M41: 14,710,707 km (0.1 R)
• M42: 15,049,845 km (0.089 R)
• M43: 15,125,542 km (0.082 R)
• M44: 15,697,753 km (0.08 R)
• M45: 16,238,101 km (0.112 R)
• M46: 16,981,303 km (0.101 R)
• M47: 17,099,635 km (0.087 R)
• M48: 17,975,979 km (0.052 R)
• M49: 18,056,313 km (0.102 R)
• M50: 18,744,464 km (0.098 R)
• M51: 18,866,835 km (0.071 R)
• M52: 20,565,369 km (0.057 R)
• M53: 20,649,443 km (0.091 R)
• M54: 20,733,666 km (0.086 R)
• M55: 21,241,402 km (0.116 R)
• M56: 21,496,915 km (0.114 R)
• M57: 21,881,830 km (0.072 R)
• M58: 22,355,607 km (0.116 R)
• M59: 23,576,624 km (0.117 R)
• M60: 23,929,376 km (0.1 R)
• M61: 24,150,781 km (0.119 R)
• M62: 24,239,642 km (0.048 R)
• M63: 25,992,032 km (0.08 R)
• M64: 26,676,891 km (0.104 R)
• M65: 27,367,734 km (0.12 R)
• M66: 28,485,230 km (0.105 R)
• M67: 29,665,108 km (0.1 R)
• M68: 29,950,690 km (0.08 R)
• M69: 30,380,635 km (0.06 R)
• M70: 30,620,440 km (0.071 R)
• M71: 30,860,844 km (0.069 R)
• M72: 30,957,335 km (0.078 R)
• M73: 31,440,536 km (0.111 R)
• M74: 31,780,272 km (0.089 R)
• M75: 32,121,206 km (0.108 R)
• M76: 32,267,812 km (0.039 R)
• M77: 32,856,031 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 58.6

Radius: 7.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 13.44 AU - 15.58 AU

Year: 20934 Days

Day: 23.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 34,562,281 km

• M1: 174,581 km (0.079 R)
• M2: 226,342 km (0.099 R)
• M3: 286,330 km (0.048 R)
• M4: 579,692 km (0.033 R)
• M5: 2,060,561 km (0.09 R)
• M6: 2,599,712 km (0.112 R)
• M7: 2,885,145 km (0.072 R)
• M8: 4,562,286 km (0.056 R)
• M9: 4,773,070 km (0.101 R)
• M10: 5,903,431 km (0.115 R)
• M11: 6,395,459 km (0.097 R)
• M12: 7,635,775 km (0.079 R)
• M13: 7,854,786 km (0.092 R)
• M14: 8,948,197 km (0.045 R)
• M15: 9,647,118 km (0.119 R)
• M16: 10,122,690 km (0.106 R)
• M17: 10,955,950 km (0.057 R)
• M18: 11,026,410 km (0.047 R)
• M19: 11,203,085 km (0.073 R)
• M20: 11,559,427 km (0.108 R)
• M21: 13,245,844 km (0.116 R)
• M22: 14,502,317 km (0.119 R)
• M23: 16,316,341 km (0.101 R)
• M24: 17,331,811 km (0.063 R)
• M25: 17,619,936 km (0.089 R)
• M26: 18,200,675 km (0.098 R)
• M27: 18,619,400 km (0.112 R)
• M28: 21,153,737 km (0.106 R)
• M29: 21,682,267 km (0.086 R)
• M30: 23,203,378 km (0.107 R)
• M31: 23,976,799 km (0.102 R)
• M32: 25,222,500 km (0.084 R)
• M33: 27,154,108 km (0.08 R)
• M34: 27,680,393 km (0.049 R)
• M35: 27,920,647 km (0.079 R)
• M36: 30,907,967 km (0.075 R)
• M37: 31,157,347 km (0.083 R)
• M38: 31,909,375 km (0.085 R)
• M39: 31,959,640 km (0.088 R)
• M40: 33,431,235 km (0.1 R)
• M41: 33,635,884 km (0.099 R)
• M42: 33,687,197 km (0.076 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 17,117 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit