🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.61 AU - 0.67 AU

Year: 186 Days

Day: 21.7 Hours

Environment

Temp: 163 °C

Axial Tilt: 32.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 50,026,245 km

• M1: 355,145 km (0.116 R)
• M2: 424,708 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.53 AU - 0.77 AU

Year: 190 Days

Day: 34.3 Hours

Environment

Temp: 203 °C

Axial Tilt: 11.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.57 AU - 0.75 AU

Year: 195 Days

Day: 47.7 Hours

Environment

Temp: 201 °C

Axial Tilt: 4.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 50,026,245 km

• M1: 67,469 km (0.088 R)
• M2: 295,007 km (0.044 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.35 AU - 1.67 AU

Year: 674 Days

Day: 23.4 Hours

Environment

Temp: -29 °C

Axial Tilt: 3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.13 AU - 3.31 AU

Year: 1630 Days

Day: 41.9 Hours

Environment

Temp: -96 °C

Axial Tilt: 9.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 50,026,245 km

• M1: 314,006 km (0.118 R)
• M2: 1,055,862 km (0.038 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.85 AU - 4.09 AU

Year: 2875 Days

Day: 43.5 Hours

Environment

Temp: -114 °C

Axial Tilt: 45.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 3.54 AU - 4.7 AU

Year: 3039 Days

Day: 40.2 Hours

Environment

Temp: -116 °C

Axial Tilt: 43.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.5 AU - 4.98 AU

Year: 3751 Days

Day: 25 Hours

Environment

Temp: -141 °C

Axial Tilt: 15.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,026,245 km

• M1: 1,398,890 km (0.115 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.7

Radius: 14.7

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 4.69 AU - 7.55 AU

Year: 5502 Days

Day: 9.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 50,026,245 km

• M1: 252,222 km (0.069 R)
• M2: 360,381 km (0.096 R)
• M3: 482,752 km (0.113 R)
• M4: 616,642 km (0.081 R)
• M5: 1,137,692 km (0.038 R)
• M6: 1,248,245 km (0.105 R)
• M7: 1,351,168 km (0.106 R)
• M8: 1,517,371 km (0.116 R)
• M9: 1,628,074 km (0.114 R)
• M10: 1,871,170 km (0.085 R)
• M11: 2,058,168 km (0.102 R)
• M12: 2,538,676 km (0.087 R)
• M13: 2,762,025 km (0.113 R)
• M14: 3,023,074 km (0.064 R)
• M15: 3,520,337 km (0.051 R)
• M16: 3,787,220 km (0.106 R)
• M17: 3,991,870 km (0.095 R)
• M18: 4,095,691 km (0.093 R)
• M19: 4,252,918 km (0.117 R)
• M20: 4,447,993 km (0.069 R)
• M21: 4,591,757 km (0.07 R)
• M22: 4,828,720 km (0.079 R)
• M23: 4,921,022 km (0.057 R)
• M24: 5,032,472 km (0.106 R)
• M25: 5,295,914 km (0.12 R)
• M26: 5,797,366 km (0.077 R)
• M27: 6,476,391 km (0.102 R)
• M28: 6,701,536 km (0.09 R)
• M29: 6,929,224 km (0.048 R)
• M30: 7,371,136 km (0.093 R)
• M31: 7,865,856 km (0.058 R)
• M32: 8,084,269 km (0.101 R)
• M33: 8,326,917 km (0.098 R)
• M34: 8,751,775 km (0.046 R)
• M35: 8,955,527 km (0.082 R)
• M36: 9,275,666 km (0.083 R)
• M37: 9,437,082 km (0.079 R)
• M38: 9,529,833 km (0.068 R)
• M39: 9,646,071 km (0.092 R)
• M40: 9,974,288 km (0.112 R)
• M41: 10,258,524 km (0.071 R)
• M42: 10,353,968 km (0.108 R)
• M43: 10,665,879 km (0.039 R)
• M44: 10,786,754 km (0.068 R)
• M45: 10,932,313 km (0.055 R)
• M46: 11,200,991 km (0.029 R)
• M47: 11,373,029 km (0.046 R)
• M48: 11,595,630 km (0.093 R)
• M49: 11,869,544 km (0.063 R)
• M50: 12,095,437 km (0.11 R)
• M51: 12,196,116 km (0.049 R)
• M52: 12,373,240 km (0.055 R)
• M53: 12,678,868 km (0.094 R)
• M54: 12,935,429 km (0.055 R)
• M55: 13,142,023 km (0.117 R)
• M56: 13,271,575 km (0.104 R)
• M57: 13,532,175 km (0.116 R)
• M58: 13,847,078 km (0.077 R)
• M59: 14,323,996 km (0.078 R)
• M60: 14,671,811 km (0.079 R)
• M61: 15,022,469 km (0.113 R)
• M62: 16,091,046 km (0.101 R)
• M63: 16,396,824 km (0.056 R)
• M64: 16,817,045 km (0.101 R)
• M65: 17,325,977 km (0.091 R)
• M66: 17,496,668 km (0.119 R)
• M67: 17,753,976 km (0.094 R)
• M68: 18,012,332 km (0.042 R)
• M69: 18,416,994 km (0.044 R)
• M70: 18,707,812 km (0.116 R)
• M71: 18,853,670 km (0.099 R)
• M72: 19,088,090 km (0.073 R)
• M73: 19,648,633 km (0.075 R)

Planet 10 - Ice Giant

Semi-Major Axis: 20.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 72.6

Radius: 7.9

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 18.53 AU - 21.67 AU

Year: 32751 Days

Day: 15.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 50,026,245 km

• M1: 134,040 km (0.079 R)
• M2: 887,714 km (0.118 R)
• M3: 1,335,610 km (0.119 R)
• M4: 2,384,740 km (0.077 R)
• M5: 2,940,945 km (0.114 R)
• M6: 2,998,839 km (0.087 R)
• M7: 3,144,996 km (0.045 R)
• M8: 3,204,237 km (0.056 R)
• M9: 3,444,641 km (0.102 R)
• M10: 3,659,762 km (0.117 R)
• M11: 4,530,422 km (0.078 R)
• M12: 4,698,570 km (0.114 R)
• M13: 5,145,269 km (0.117 R)
• M14: 8,674,133 km (0.066 R)
• M15: 9,391,605 km (0.112 R)
• M16: 9,909,363 km (0.037 R)
• M17: 10,882,647 km (0.099 R)
• M18: 11,655,469 km (0.053 R)
• M19: 11,932,525 km (0.11 R)
• M20: 13,062,138 km (0.03 R)
• M21: 13,301,794 km (0.11 R)
• M22: 13,882,832 km (0.085 R)
• M23: 14,323,996 km (0.093 R)
• M24: 14,620,798 km (0.068 R)
• M25: 15,371,331 km (0.044 R)
• M26: 15,929,780 km (0.092 R)
• M27: 16,083,267 km (0.075 R)
• M28: 20,853,494 km (0.118 R)
• M29: 24,060,873 km (0.102 R)
• M30: 26,262,804 km (0.073 R)
• M31: 27,479,633 km (0.097 R)
• M32: 35,089,527 km (0.045 R)
• M33: 36,092,132 km (0.052 R)
• M34: 39,363,089 km (0.099 R)
• M35: 43,511,438 km (0.068 R)
• M36: 45,093,436 km (0.103 R)
• M37: 45,383,207 km (0.085 R)
• M38: 46,840,739 km (0.098 R)
• M39: 47,575,264 km (0.085 R)

Kuiper Belt

Range: 30.2 - 51.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 343 - 19,307 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit