🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.57 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.11

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.03 AU - 1.25 AU

Year: 456 Days

Day: 21.1 Hours

Environment

Temp: -8 °C

Axial Tilt: 27.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.96 AU - 1.4 AU

Year: 480 Days

Day: 28.7 Hours

Environment

Temp: 7 °C

Axial Tilt: 23.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 97,433,022 km

• M1: 34,856 km (0.096 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.2 AU - 1.7 AU

Year: 654 Days

Day: 40.9 Hours

Environment

Temp: -38 °C

Axial Tilt: 76.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.41 AU - 1.73 AU

Year: 737 Days

Day: 15 Hours

Environment

Temp: -50 °C

Axial Tilt: 5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 97,433,022 km

• M1: 162,164 km (0.115 R)
• M2: 518,955 km (0.105 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.61 AU - 1.83 AU

Year: 845 Days

Day: 23.4 Hours

Environment

Temp: -64 °C

Axial Tilt: 15.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.27 AU - 2.45 AU

Year: 1359 Days

Day: 22.7 Hours

Environment

Temp: -92 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,433,022 km

• M1: 970,142 km (0.074 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.47 AU - 3.53 AU

Year: 1947 Days

Day: 19.3 Hours

Environment

Temp: -99 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,433,022 km

• M1: 377,735 km (0.034 R)

Planet 8 - Terrestrial

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.69

Radius: 1.49

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.62 AU - 3.54 AU

Year: 2026 Days

Day: 38.5 Hours

Environment

Temp: -106 °C

Axial Tilt: 148.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Terrestrial

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 3.29 AU - 3.63 AU

Year: 2412 Days

Day: 21.4 Hours

Environment

Temp: -116 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,433,022 km

• M1: 1,171,651 km (0.075 R)

Asteroid Belt

Center: 9.82 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 10 - Ice Giant

Semi-Major Axis: 16.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 967.2

Radius: 3.8

Gravity: 66.98 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 13.25 AU - 19.11 AU

Year: 24389 Days

Day: 23.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 97,433,022 km

• M1: 47,423 km (0.12 R)
• M2: 173,384 km (0.078 R)
• M3: 297,700 km (0.067 R)
• M4: 431,440 km (0.081 R)
• M5: 615,146 km (0.078 R)
• M6: 1,201,570 km (0.087 R)
• M7: 1,360,144 km (0.025 R)
• M8: 1,497,026 km (0.095 R)
• M9: 2,094,819 km (0.099 R)
• M10: 2,349,435 km (0.109 R)
• M11: 2,756,341 km (0.1 R)
• M12: 2,892,624 km (0.12 R)
• M13: 3,091,141 km (0.115 R)
• M14: 5,182,818 km (0.079 R)
• M15: 7,108,891 km (0.111 R)
• M16: 7,953,371 km (0.106 R)
• M17: 9,775,772 km (0.091 R)
• M18: 11,364,801 km (0.099 R)
• M19: 11,858,922 km (0.096 R)
• M20: 12,739,007 km (0.096 R)
• M21: 13,978,874 km (0.07 R)
• M22: 14,220,026 km (0.106 R)
• M23: 22,589,727 km (0.096 R)
• M24: 23,033,135 km (0.067 R)
• M25: 24,282,577 km (0.079 R)
• M26: 30,668,461 km (0.076 R)
• M27: 41,461,499 km (0.045 R)
• M28: 43,135,648 km (0.099 R)
• M29: 44,334,077 km (0.119 R)
• M30: 45,203,540 km (0.061 R)
• M31: 46,439,817 km (0.109 R)
• M32: 48,062,206 km (0.118 R)
• M33: 61,558,925 km (0.075 R)
• M34: 68,239,368 km (0.109 R)
• M35: 70,805,121 km (0.108 R)
• M36: 76,127,963 km (0.099 R)
• M37: 91,986,833 km (0.097 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 19,325 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit