🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.63 AU - 0.73 AU

Year: 204 Days

Day: 19.1 Hours

Environment

Temp: 189 °C

Axial Tilt: 5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 63,245,157 km

• M1: 280,945 km (0.062 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.54 AU - 0.86 AU

Year: 213 Days

Day: 20.9 Hours

Environment

Temp: 170 °C

Axial Tilt: 11.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.93 AU - 1.09 AU

Year: 369 Days

Day: 41.2 Hours

Environment

Temp: 24 °C

Axial Tilt: 32.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.07

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.06 AU - 1.18 AU

Year: 431 Days

Day: 46.8 Hours

Environment

Temp: 21 °C

Axial Tilt: 38.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 63,245,157 km

• M1: 117,285 km (0.094 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.96 AU - 1.42 AU

Year: 472 Days

Day: 15.5 Hours

Environment

Temp: 17 °C

Axial Tilt: 23.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 63,245,157 km

• M1: 23,786 km (0.079 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.94 AU - 3.06 AU

Year: 1888 Days

Day: 42 Hours

Environment

Temp: -111 °C

Axial Tilt: 16.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.9 AU - 4.42 AU

Year: 2545 Days

Day: 32.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,245,157 km

• M1: 109,655 km (0.112 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.14 AU - 4.7 AU

Year: 3377 Days

Day: 35 Hours

Environment

Temp: -123 °C

Axial Tilt: 24.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.5

Radius: 11

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.19 AU - 6.05 AU

Year: 4211 Days

Day: 5.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,245,157 km

• M1: 136,882 km (0.069 R)
• M2: 495,019 km (0.095 R)
• M3: 881,879 km (0.08 R)
• M4: 1,289,833 km (0.093 R)
• M5: 1,711,699 km (0.119 R)
• M6: 2,137,903 km (0.077 R)
• M7: 3,020,381 km (0.063 R)
• M8: 4,362,872 km (0.111 R)
• M9: 4,778,605 km (0.117 R)
• M10: 5,167,410 km (0.099 R)
• M11: 5,549,333 km (0.04 R)
• M12: 6,248,254 km (0.116 R)
• M13: 8,474,420 km (0.106 R)
• M14: 11,826,310 km (0.111 R)
• M15: 13,334,406 km (0.089 R)
• M16: 13,692,095 km (0.099 R)
• M17: 16,435,869 km (0.096 R)
• M18: 16,966,044 km (0.091 R)
• M19: 17,386,265 km (0.09 R)
• M20: 18,625,234 km (0.077 R)
• M21: 21,837,848 km (0.099 R)
• M22: 22,623,088 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 315

Radius: 4

Gravity: 19.69 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 13.71 AU - 17.45 AU

Year: 22350 Days

Day: 20.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,245,157 km

• M1: 456,423 km (0.064 R)
• M2: 3,047,608 km (0.105 R)
• M3: 3,827,312 km (0.111 R)
• M4: 5,074,210 km (0.029 R)
• M5: 5,359,942 km (0.07 R)
• M6: 5,543,798 km (0.099 R)
• M7: 6,403,686 km (0.032 R)
• M8: 8,581,532 km (0.046 R)
• M9: 9,194,285 km (0.099 R)
• M10: 11,207,424 km (0.106 R)
• M11: 21,356,293 km (0.117 R)
• M12: 25,554,308 km (0.089 R)
• M13: 27,900,601 km (0.103 R)
• M14: 29,694,579 km (0.05 R)
• M15: 43,115,602 km (0.087 R)
• M16: 47,829,132 km (0.095 R)
• M17: 51,705,662 km (0.061 R)

Kuiper Belt

Range: 30.2 - 55.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 211 - 16,200 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit