🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.89 AU - 0.93 AU

Year: 332 Days

Day: 39.6 Hours

Environment

Temp: 31 °C

Axial Tilt: 23.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.05 AU - 1.37 AU

Year: 510 Days

Day: 34.2 Hours

Environment

Temp: -30 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.51 AU - 2.03 AU

Year: 902 Days

Day: 37.4 Hours

Environment

Temp: -73 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.5 AU - 2.06 AU

Year: 909 Days

Day: 41.8 Hours

Environment

Temp: -76 °C

Axial Tilt: 39.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 95,673,123 km

• M1: 303,833 km (0.089 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.72 AU - 1.92 AU

Year: 940 Days

Day: 39.1 Hours

Environment

Temp: -74 °C

Axial Tilt: 45.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 95,673,123 km

• M1: 203,603 km (0.119 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.76 AU - 2.15 AU

Year: 1043 Days

Day: 16.6 Hours

Environment

Temp: -79 °C

Axial Tilt: 28.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.9

Radius: 13

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.52 AU - 8.3 AU

Year: 6955 Days

Day: 12 Hours

Environment

Temp: -160 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 95,673,123 km

• M1: 161,715 km (0.078 R)
• M2: 733,179 km (0.073 R)
• M3: 1,583,643 km (0.103 R)
• M4: 2,210,757 km (0.116 R)
• M5: 2,820,219 km (0.106 R)
• M6: 3,562,823 km (0.082 R)
• M7: 4,677,477 km (0.11 R)
• M8: 5,720,323 km (0.115 R)
• M9: 6,212,500 km (0.093 R)
• M10: 6,626,587 km (0.096 R)
• M11: 8,512,867 km (0.083 R)
• M12: 9,200,119 km (0.073 R)
• M13: 9,970,548 km (0.105 R)
• M14: 11,130,979 km (0.109 R)
• M15: 17,489,786 km (0.105 R)
• M16: 19,907,587 km (0.083 R)
• M17: 21,822,290 km (0.088 R)
• M18: 23,028,348 km (0.044 R)
• M19: 24,363,210 km (0.094 R)
• M20: 25,049,715 km (0.12 R)
• M21: 25,485,344 km (0.066 R)
• M22: 27,462,429 km (0.053 R)
• M23: 30,815,516 km (0.071 R)
• M24: 32,127,639 km (0.098 R)
• M25: 35,079,803 km (0.035 R)
• M26: 36,621,858 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.9

Radius: 13.1

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 9.15 AU - 9.29 AU

Year: 10719 Days

Day: 12.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 95,673,123 km

• M1: 163,810 km (0.119 R)
• M2: 668,104 km (0.101 R)
• M3: 1,345,782 km (0.047 R)
• M4: 2,105,889 km (0.097 R)
• M5: 5,831,923 km (0.055 R)
• M6: 6,602,502 km (0.115 R)
• M7: 7,476,303 km (0.109 R)
• M8: 7,998,549 km (0.102 R)
• M9: 9,326,380 km (0.119 R)
• M10: 9,756,624 km (0.075 R)
• M11: 13,203,508 km (0.069 R)
• M12: 18,510,941 km (0.045 R)
• M13: 19,819,324 km (0.071 R)
• M14: 28,362,560 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.2

Radius: 6.1

Gravity: 21.02 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 13.72 AU - 19.9 AU

Year: 26389 Days

Day: 15.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 95,673,123 km

• M1: 76,145 km (0.083 R)
• M2: 579,542 km (0.104 R)
• M3: 1,164,769 km (0.107 R)
• M4: 2,431,564 km (0.025 R)
• M5: 4,001,444 km (0.072 R)
• M6: 8,787,229 km (0.078 R)
• M7: 14,714,746 km (0.069 R)
• M8: 16,595,939 km (0.116 R)
• M9: 17,686,807 km (0.092 R)
• M10: 18,155,198 km (0.115 R)
• M11: 21,988,793 km (0.087 R)
• M12: 23,527,257 km (0.083 R)
• M13: 30,002,302 km (0.107 R)
• M14: 41,381,613 km (0.072 R)
• M15: 41,875,286 km (0.056 R)
• M16: 42,874,451 km (0.082 R)
• M17: 44,231,303 km (0.047 R)
• M18: 50,504,840 km (0.087 R)
• M19: 52,785,160 km (0.059 R)
• M20: 55,531,178 km (0.093 R)
• M21: 61,947,880 km (0.073 R)
• M22: 69,302,710 km (0.102 R)
• M23: 78,217,097 km (0.047 R)
• M24: 90,326,895 km (0.107 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: 180 - 16,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit