🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.66 AU - 0.78 AU

Year: 222 Days

Day: 27.7 Hours

Environment

Temp: 193 °C

Axial Tilt: 10.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.68 AU - 0.84 AU

Year: 241 Days

Day: 19.2 Hours

Environment

Temp: 149 °C

Axial Tilt: 38.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 48,995,292 km

• M1: 194,178 km (0.057 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.71

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.8 AU - 2.22 AU

Year: 1036 Days

Day: 16.7 Hours

Environment

Temp: -70 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.75 AU - 2.53 AU

Year: 1138 Days

Day: 21 Hours

Environment

Temp: -62 °C

Axial Tilt: 22.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,995,292 km

• M1: 1,072,168 km (0.118 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.4 AU - 3.3 AU

Year: 1749 Days

Day: 40.6 Hours

Environment

Temp: -91 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 3.72 AU - 3.86 AU

Year: 2682 Days

Day: 23.5 Hours

Environment

Temp: -111 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.28 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.4

Radius: 11

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 5.42 AU - 8.1 AU

Year: 6388 Days

Day: 11.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 48,995,292 km

• M1: 146,606 km (0.099 R)
• M2: 520,002 km (0.096 R)
• M3: 1,076,506 km (0.114 R)
• M4: 1,877,752 km (0.049 R)
• M5: 2,226,914 km (0.044 R)
• M6: 2,602,105 km (0.079 R)
• M7: 3,847,059 km (0.082 R)
• M8: 4,819,445 km (0.037 R)
• M9: 5,393,302 km (0.074 R)
• M10: 6,207,115 km (0.092 R)
• M11: 6,643,791 km (0.074 R)
• M12: 8,078,285 km (0.087 R)
• M13: 9,228,693 km (0.104 R)
• M14: 9,709,351 km (0.091 R)
• M15: 11,700,498 km (0.046 R)
• M16: 12,526,279 km (0.039 R)
• M17: 14,525,654 km (0.036 R)
• M18: 15,971,667 km (0.043 R)
• M19: 16,347,607 km (0.119 R)
• M20: 18,522,460 km (0.105 R)
• M21: 23,680,894 km (0.029 R)
• M22: 27,071,829 km (0.118 R)
• M23: 28,240,188 km (0.119 R)
• M24: 30,389,162 km (0.096 R)
• M25: 31,356,611 km (0.107 R)
• M26: 33,865,068 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.6

Radius: 11

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 7.45 AU - 12.19 AU

Year: 11184 Days

Day: 14 Hours

Environment

Temp: -172 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,995,292 km

• M1: 136,882 km (0.119 R)
• M2: 492,327 km (0.1 R)
• M3: 994,227 km (0.093 R)
• M4: 1,817,315 km (0.116 R)
• M5: 3,063,914 km (0.074 R)
• M6: 4,120,225 km (0.065 R)
• M7: 5,113,854 km (0.073 R)
• M8: 9,737,475 km (0.106 R)
• M9: 13,952,545 km (0.057 R)
• M10: 18,502,863 km (0.098 R)
• M11: 19,719,094 km (0.095 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.8

Radius: 9

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 10.75 AU - 11.93 AU

Year: 13879 Days

Day: 8.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 48,995,292 km

• M1: 151,243 km (0.077 R)
• M2: 564,582 km (0.053 R)
• M3: 961,166 km (0.078 R)
• M4: 1,683,874 km (0.078 R)
• M5: 2,225,867 km (0.06 R)
• M6: 2,879,909 km (0.095 R)
• M7: 3,682,052 km (0.03 R)
• M8: 4,191,433 km (0.062 R)
• M9: 4,596,245 km (0.117 R)
• M10: 5,122,680 km (0.103 R)
• M11: 6,444,975 km (0.083 R)
• M12: 7,266,717 km (0.113 R)
• M13: 8,975,573 km (0.105 R)
• M14: 10,202,724 km (0.075 R)
• M15: 11,207,573 km (0.084 R)
• M16: 13,723,211 km (0.119 R)
• M17: 16,380,967 km (0.098 R)
• M18: 20,162,502 km (0.105 R)
• M19: 23,849,042 km (0.105 R)
• M20: 24,581,324 km (0.094 R)
• M21: 27,961,936 km (0.104 R)
• M22: 28,878,822 km (0.083 R)
• M23: 31,313,078 km (0.113 R)
• M24: 31,640,398 km (0.098 R)
• M25: 37,192,424 km (0.112 R)
• M26: 43,631,715 km (0.101 R)
• M27: 44,588,543 km (0.096 R)

Kuiper Belt

Range: 30.2 - 49.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 398 - 13,949 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit