🌌 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: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.48 AU - 0.8 AU

Year: 194 Days

Day: 45.5 Hours

Environment

Temp: 144 °C

Axial Tilt: 37.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.57 AU - 0.75 AU

Year: 203 Days

Day: 31.4 Hours

Environment

Temp: 139 °C

Axial Tilt: 4.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.99 AU - 1.19 AU

Year: 431 Days

Day: 26.2 Hours

Environment

Temp: 10 °C

Axial Tilt: 41.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.26 AU - 1.3 AU

Year: 548 Days

Day: 18.7 Hours

Environment

Temp: -30 °C

Axial Tilt: 42.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.22 AU - 1.54 AU

Year: 614 Days

Day: 22.1 Hours

Environment

Temp: -38 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,613,866 km

• M1: 51,013 km (0.07 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.44 AU - 1.94 AU

Year: 832 Days

Day: 34.2 Hours

Environment

Temp: -59 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,613,866 km

• M1: 28,723 km (0.118 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.43 AU - 4.51 AU

Year: 2996 Days

Day: 35.5 Hours

Environment

Temp: -122 °C

Axial Tilt: 22.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.5

Radius: 8.5

Gravity: 13.52 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.06 AU - 6.2 AU

Year: 5060 Days

Day: 10 Hours

Environment

Temp: -155 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 48,613,866 km

• M1: 107,262 km (0.062 R)
• M2: 479,312 km (0.074 R)
• M3: 755,619 km (0.097 R)
• M4: 1,193,492 km (0.071 R)
• M5: 1,595,012 km (0.07 R)
• M6: 2,069,687 km (0.072 R)
• M7: 2,955,456 km (0.066 R)
• M8: 3,259,139 km (0.108 R)
• M9: 4,297,797 km (0.057 R)
• M10: 4,824,531 km (0.093 R)
• M11: 6,070,532 km (0.039 R)
• M12: 7,012,400 km (0.101 R)
• M13: 7,408,087 km (0.075 R)
• M14: 8,204,695 km (0.055 R)
• M15: 8,603,673 km (0.048 R)
• M16: 10,701,334 km (0.052 R)
• M17: 12,904,312 km (0.095 R)
• M18: 14,168,714 km (0.117 R)
• M19: 14,685,275 km (0.115 R)
• M20: 15,214,253 km (0.086 R)
• M21: 18,387,822 km (0.108 R)
• M22: 21,150,596 km (0.105 R)
• M23: 28,197,403 km (0.118 R)
• M24: 28,558,682 km (0.119 R)
• M25: 29,475,568 km (0.107 R)
• M26: 29,941,116 km (0.073 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.5

Radius: 14.5

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 6.15 AU - 6.75 AU

Year: 6204 Days

Day: 8.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,613,866 km

• M1: 183,856 km (0.092 R)
• M2: 1,247,197 km (0.066 R)
• M3: 2,043,208 km (0.045 R)
• M4: 3,278,437 km (0.06 R)
• M5: 3,914,378 km (0.062 R)
• M6: 4,675,532 km (0.072 R)
• M7: 5,244,453 km (0.071 R)
• M8: 5,783,154 km (0.114 R)
• M9: 6,632,721 km (0.115 R)
• M10: 10,771,047 km (0.114 R)
• M11: 12,481,100 km (0.042 R)
• M12: 13,222,357 km (0.074 R)
• M13: 15,773,599 km (0.041 R)
• M14: 16,382,463 km (0.065 R)
• M15: 18,919,344 km (0.106 R)

Planet 10 - Gas Giant

Semi-Major Axis: 10.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.8

Radius: 11.3

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 8.7 AU - 13.06 AU

Year: 13592 Days

Day: 11.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,613,866 km

• M1: 145,559 km (0.115 R)
• M2: 602,431 km (0.078 R)
• M3: 1,347,428 km (0.06 R)
• M4: 2,821,416 km (0.093 R)
• M5: 3,809,360 km (0.101 R)
• M6: 4,241,548 km (0.082 R)
• M7: 5,501,312 km (0.044 R)
• M8: 7,688,882 km (0.113 R)
• M9: 10,715,845 km (0.12 R)
• M10: 13,637,641 km (0.079 R)
• M11: 14,916,254 km (0.114 R)
• M12: 15,995,304 km (0.04 R)
• M13: 18,536,373 km (0.106 R)
• M14: 31,731,354 km (0.101 R)
• M15: 36,668,682 km (0.068 R)
• M16: 37,395,877 km (0.063 R)
• M17: 45,623,760 km (0.098 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: 251 - 19,221 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit