🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.76 AU - 1.18 AU

Year: 341 Days

Day: 20.5 Hours

Environment

Temp: 96 °C

Axial Tilt: 26.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 41,883,681 km

• M1: 40,541 km (0.072 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.06 AU - 1.48 AU

Year: 510 Days

Day: 38.8 Hours

Environment

Temp: 12 °C

Axial Tilt: 33.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.25 AU - 2.43 AU

Year: 1276 Days

Day: 19.2 Hours

Environment

Temp: -81 °C

Axial Tilt: 43.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,883,681 km

• M1: 1,182,870 km (0.084 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.74 AU - 3.38 AU

Year: 1908 Days

Day: 22.2 Hours

Environment

Temp: -105 °C

Axial Tilt: 0.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 4.07 AU - 4.71 AU

Year: 3279 Days

Day: 39.4 Hours

Environment

Temp: -124 °C

Axial Tilt: 5.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,883,681 km

• M1: 20,645 km (0.098 R)

Asteroid Belt

Center: 5.27 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.3

Radius: 14.3

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 5.18 AU - 7.12 AU

Year: 5436 Days

Day: 5.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,883,681 km

• M1: 177,872 km (0.061 R)
• M2: 683,812 km (0.1 R)
• M3: 1,156,242 km (0.091 R)
• M4: 1,891,067 km (0.075 R)
• M5: 2,441,736 km (0.1 R)
• M6: 4,105,564 km (0.095 R)
• M7: 4,599,387 km (0.098 R)
• M8: 6,088,933 km (0.101 R)
• M9: 7,218,696 km (0.074 R)
• M10: 8,004,683 km (0.057 R)
• M11: 9,221,213 km (0.068 R)
• M12: 10,633,417 km (0.109 R)
• M13: 11,095,674 km (0.105 R)
• M14: 12,692,033 km (0.047 R)
• M15: 13,612,808 km (0.109 R)
• M16: 16,901,717 km (0.119 R)
• M17: 18,508,697 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.7

Radius: 8.1

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 6.78 AU - 8.94 AU

Year: 7855 Days

Day: 11.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 41,883,681 km

• M1: 100,829 km (0.119 R)
• M2: 407,654 km (0.072 R)
• M3: 866,172 km (0.092 R)
• M4: 1,162,076 km (0.053 R)
• M5: 1,615,059 km (0.111 R)
• M6: 2,024,807 km (0.1 R)
• M7: 2,502,473 km (0.111 R)
• M8: 2,933,165 km (0.104 R)
• M9: 3,282,626 km (0.086 R)
• M10: 3,659,613 km (0.027 R)
• M11: 5,167,858 km (0.114 R)
• M12: 6,560,315 km (0.037 R)
• M13: 10,111,769 km (0.075 R)
• M14: 12,215,713 km (0.089 R)
• M15: 13,177,328 km (0.044 R)
• M16: 14,246,205 km (0.092 R)
• M17: 15,493,552 km (0.114 R)
• M18: 17,202,409 km (0.113 R)
• M19: 18,754,187 km (0.105 R)
• M20: 19,599,864 km (0.088 R)
• M21: 21,901,876 km (0.12 R)
• M22: 23,640,952 km (0.115 R)
• M23: 25,555,355 km (0.071 R)
• M24: 27,035,327 km (0.085 R)
• M25: 29,407,949 km (0.062 R)
• M26: 29,879,482 km (0.049 R)
• M27: 31,619,455 km (0.083 R)
• M28: 32,614,729 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.9

Radius: 13.7

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 7.07 AU - 8.95 AU

Year: 8081 Days

Day: 5.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,883,681 km

• M1: 170,392 km (0.091 R)
• M2: 791,373 km (0.06 R)
• M3: 1,562,999 km (0.094 R)
• M4: 2,495,592 km (0.066 R)
• M5: 3,486,827 km (0.099 R)
• M6: 3,921,110 km (0.099 R)
• M7: 4,418,822 km (0.102 R)
• M8: 4,958,721 km (0.067 R)
• M9: 6,275,631 km (0.115 R)
• M10: 7,224,680 km (0.111 R)
• M11: 8,183,452 km (0.082 R)
• M12: 11,003,073 km (0.039 R)
• M13: 12,054,148 km (0.116 R)
• M14: 22,668,565 km (0.099 R)
• M15: 24,107,846 km (0.071 R)
• M16: 27,733,500 km (0.077 R)
• M17: 30,075,306 km (0.119 R)
• M18: 31,604,345 km (0.113 R)
• M19: 33,506,781 km (0.096 R)
• M20: 33,939,718 km (0.113 R)
• M21: 35,038,364 km (0.057 R)

Kuiper Belt

Range: 30.8 - 57.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 299 - 20,200 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit