🌌 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: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.5 AU - 0.76 AU

Year: 183 Days

Day: 43.6 Hours

Environment

Temp: 145 °C

Axial Tilt: 2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.67 AU - 0.73 AU

Year: 214 Days

Day: 17.5 Hours

Environment

Temp: 144 °C

Axial Tilt: 12.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 30,195,381 km

• M1: 620,233 km (0.108 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.04 AU - 1.2 AU

Year: 433 Days

Day: 14.4 Hours

Environment

Temp: 11 °C

Axial Tilt: 32.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.26 AU - 1.5 AU

Year: 592 Days

Day: 46.2 Hours

Environment

Temp: -21 °C

Axial Tilt: 52 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.7 AU - 2.08 AU

Year: 949 Days

Day: 46.4 Hours

Environment

Temp: -66 °C

Axial Tilt: 1.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,195,381 km

• M1: 73,153 km (0.061 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.29 AU - 2.67 AU

Year: 1426 Days

Day: 17.8 Hours

Environment

Temp: -96 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 4.08 AU - 4.7 AU

Year: 3360 Days

Day: 33.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 34 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,195,381 km

• M1: 138,976 km (0.102 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.65 AU - 5.33 AU

Year: 3475 Days

Day: 21.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.6

Radius: 10.2

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 8.29 AU - 9.15 AU

Year: 9405 Days

Day: 10.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 30,195,381 km

• M1: 126,859 km (0.111 R)
• M2: 579,093 km (0.075 R)
• M3: 1,043,146 km (0.063 R)
• M4: 1,506,151 km (0.114 R)
• M5: 2,317,121 km (0.05 R)
• M6: 2,685,731 km (0.1 R)
• M7: 3,093,534 km (0.107 R)
• M8: 3,493,409 km (0.071 R)
• M9: 3,848,405 km (0.08 R)
• M10: 5,825,042 km (0.108 R)
• M11: 8,356,238 km (0.116 R)
• M12: 9,230,637 km (0.038 R)
• M13: 10,472,749 km (0.118 R)
• M14: 11,766,920 km (0.115 R)
• M15: 13,530,679 km (0.093 R)
• M16: 13,966,308 km (0.101 R)
• M17: 15,464,231 km (0.101 R)
• M18: 15,803,519 km (0.073 R)
• M19: 16,638,275 km (0.059 R)
• M20: 20,111,938 km (0.118 R)
• M21: 20,435,069 km (0.115 R)
• M22: 22,883,089 km (0.107 R)
• M23: 25,426,252 km (0.116 R)
• M24: 28,152,075 km (0.042 R)
• M25: 31,716,843 km (0.078 R)
• M26: 32,155,015 km (0.098 R)
• M27: 38,473,580 km (0.06 R)
• M28: 40,493,600 km (0.027 R)
• M29: 41,399,266 km (0.099 R)
• M30: 42,450,789 km (0.109 R)
• M31: 44,606,943 km (0.064 R)

Planet 10 - Gas Giant

Semi-Major Axis: 10.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.2

Radius: 11.2

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 9.55 AU - 11.43 AU

Year: 12409 Days

Day: 8.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 30,195,381 km

• M1: 139,874 km (0.102 R)
• M2: 490,831 km (0.096 R)
• M3: 879,935 km (0.105 R)
• M4: 1,310,178 km (0.077 R)
• M5: 2,256,534 km (0.103 R)
• M6: 3,161,302 km (0.107 R)
• M7: 3,547,115 km (0.116 R)
• M8: 5,823,396 km (0.052 R)
• M9: 6,406,828 km (0.074 R)
• M10: 7,096,474 km (0.116 R)
• M11: 7,547,811 km (0.087 R)
• M12: 8,355,340 km (0.092 R)
• M13: 10,360,401 km (0.092 R)
• M14: 13,333,209 km (0.109 R)
• M15: 14,567,691 km (0.07 R)
• M16: 21,043,484 km (0.118 R)
• M17: 22,123,281 km (0.061 R)
• M18: 25,423,410 km (0.09 R)
• M19: 25,990,087 km (0.061 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 320 - 18,766 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit