🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.64 AU - 0.72 AU

Year: 196 Days

Day: 17.4 Hours

Environment

Temp: 185 °C

Axial Tilt: 27.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.93 AU - 1.21 AU

Year: 387 Days

Day: 12.5 Hours

Environment

Temp: 119 °C

Axial Tilt: 21 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.12 AU - 1.5 AU

Year: 525 Days

Day: 38.9 Hours

Environment

Temp: 15 °C

Axial Tilt: 21.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 65,912,555 km

• M1: 87,365 km (0.095 R)
• M2: 270,024 km (0.08 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.16 AU - 2.74 AU

Year: 1342 Days

Day: 20.9 Hours

Environment

Temp: -75 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.36 AU - 2.96 AU

Year: 1518 Days

Day: 24.2 Hours

Environment

Temp: -70 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,912,555 km

• M1: 1,195,437 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832

Radius: 13.7

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 5.6 AU - 7.98 AU

Year: 6190 Days

Day: 6.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,912,555 km

• M1: 170,392 km (0.116 R)
• M2: 842,984 km (0.081 R)
• M3: 1,636,451 km (0.099 R)
• M4: 2,414,659 km (0.053 R)
• M5: 2,890,231 km (0.071 R)
• M6: 4,903,968 km (0.104 R)
• M7: 6,024,905 km (0.116 R)
• M8: 9,592,963 km (0.059 R)
• M9: 10,752,197 km (0.044 R)
• M10: 11,241,233 km (0.117 R)
• M11: 12,422,757 km (0.049 R)
• M12: 13,799,207 km (0.057 R)
• M13: 14,554,078 km (0.105 R)
• M14: 15,153,367 km (0.111 R)
• M15: 17,248,485 km (0.12 R)
• M16: 20,186,288 km (0.052 R)
• M17: 22,399,888 km (0.106 R)
• M18: 24,017,938 km (0.091 R)
• M19: 28,495,103 km (0.081 R)
• M20: 29,528,974 km (0.108 R)
• M21: 31,771,446 km (0.112 R)
• M22: 36,373,825 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426

Radius: 10.4

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 5.41 AU - 8.33 AU

Year: 6300 Days

Day: 8.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,912,555 km

• M1: 129,402 km (0.107 R)
• M2: 517,908 km (0.036 R)
• M3: 1,110,315 km (0.113 R)
• M4: 1,878,052 km (0.108 R)
• M5: 2,238,283 km (0.098 R)
• M6: 2,610,632 km (0.109 R)
• M7: 3,651,385 km (0.114 R)
• M8: 5,644,328 km (0.112 R)
• M9: 6,725,920 km (0.058 R)
• M10: 7,977,157 km (0.116 R)
• M11: 8,853,950 km (0.119 R)
• M12: 9,878,695 km (0.09 R)
• M13: 10,309,986 km (0.092 R)
• M14: 12,860,331 km (0.049 R)
• M15: 15,001,824 km (0.078 R)
• M16: 17,185,205 km (0.102 R)
• M17: 17,873,206 km (0.054 R)
• M18: 21,021,343 km (0.078 R)
• M19: 21,519,803 km (0.095 R)
• M20: 22,466,608 km (0.032 R)
• M21: 22,987,807 km (0.11 R)
• M22: 23,440,939 km (0.045 R)
• M23: 26,450,549 km (0.065 R)
• M24: 27,791,544 km (0.117 R)
• M25: 28,652,331 km (0.049 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.2

Radius: 8.4

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 9.4 AU - 10.48 AU

Year: 10964 Days

Day: 9.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,912,555 km

• M1: 104,419 km (0.107 R)
• M2: 449,691 km (0.099 R)
• M3: 803,640 km (0.092 R)
• M4: 1,216,231 km (0.09 R)
• M5: 1,744,461 km (0.093 R)
• M6: 3,079,472 km (0.109 R)
• M7: 5,236,374 km (0.052 R)
• M8: 10,321,804 km (0.105 R)
• M9: 13,519,908 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 598.1

Radius: 7

Gravity: 12.21 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 10.2 AU - 16.7 AU

Year: 17257 Days

Day: 19.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 65,912,555 km

• M1: 87,066 km (0.064 R)
• M2: 759,658 km (0.082 R)
• M3: 1,230,742 km (0.1 R)
• M4: 1,709,156 km (0.065 R)
• M5: 1,936,395 km (0.114 R)
• M6: 2,367,685 km (0.097 R)
• M7: 2,790,150 km (0.106 R)
• M8: 3,261,682 km (0.039 R)
• M9: 3,503,133 km (0.086 R)
• M10: 3,961,800 km (0.076 R)
• M11: 4,791,769 km (0.082 R)
• M12: 6,125,434 km (0.082 R)
• M13: 7,276,141 km (0.11 R)
• M14: 7,736,903 km (0.12 R)
• M15: 8,022,635 km (0.118 R)
• M16: 12,996,913 km (0.111 R)
• M17: 14,881,697 km (0.116 R)
• M18: 15,101,755 km (0.063 R)
• M19: 16,003,980 km (0.068 R)
• M20: 23,448,120 km (0.076 R)
• M21: 30,965,562 km (0.039 R)
• M22: 38,824,088 km (0.075 R)
• M23: 39,662,135 km (0.063 R)
• M24: 42,101,927 km (0.07 R)
• M25: 42,986,499 km (0.094 R)
• M26: 44,488,013 km (0.098 R)
• M27: 45,714,267 km (0.075 R)
• M28: 48,555,280 km (0.039 R)
• M29: 49,039,977 km (0.087 R)
• M30: 49,854,986 km (0.067 R)
• M31: 54,238,802 km (0.056 R)
• M32: 55,110,360 km (0.093 R)
• M33: 56,168,465 km (0.087 R)
• M34: 58,872,896 km (0.108 R)

Kuiper Belt

Range: 31.4 - 55.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 16,223 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit