🌌 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: 2.47

Radius: 1.44

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.52 AU - 0.84 AU

Year: 200 Days

Day: 29.1 Hours

Environment

Temp: 203 °C

Axial Tilt: 16.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.69 AU - 0.71 AU

Year: 209 Days

Day: 26.3 Hours

Environment

Temp: 189 °C

Axial Tilt: 41.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 46,809,328 km

• M1: 201,957 km (0.112 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.68 AU - 0.94 AU

Year: 260 Days

Day: 45.8 Hours

Environment

Temp: 105 °C

Axial Tilt: 34.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 46,809,328 km

• M1: 39,195 km (0.076 R)
• M2: 157,527 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.73 AU - 0.91 AU

Year: 265 Days

Day: 30.1 Hours

Environment

Temp: 130 °C

Axial Tilt: 39 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 46,809,328 km

• M1: 676,482 km (0.072 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.87 AU - 3.03 AU

Year: 1806 Days

Day: 25.6 Hours

Environment

Temp: -96 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 3.37 AU - 3.37 AU

Year: 2205 Days

Day: 45.1 Hours

Environment

Temp: -113 °C

Axial Tilt: 55 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 3.36 AU - 4.7 AU

Year: 2884 Days

Day: 38.6 Hours

Environment

Temp: -110 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 6.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.4

Radius: 12.5

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 5.7 AU - 6.66 AU

Year: 5476 Days

Day: 12.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,809,328 km

• M1: 155,432 km (0.077 R)
• M2: 637,437 km (0.098 R)
• M3: 1,038,209 km (0.046 R)
• M4: 2,271,344 km (0.114 R)
• M5: 2,829,494 km (0.113 R)
• M6: 3,821,777 km (0.081 R)
• M7: 5,261,507 km (0.083 R)
• M8: 6,707,221 km (0.096 R)
• M9: 7,455,659 km (0.111 R)
• M10: 8,003,636 km (0.077 R)
• M11: 9,972,643 km (0.114 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.7

Radius: 8.1

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 6.26 AU - 6.52 AU

Year: 5758 Days

Day: 7.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,809,328 km

• M1: 100,829 km (0.062 R)
• M2: 529,876 km (0.047 R)
• M3: 2,382,346 km (0.082 R)
• M4: 3,114,927 km (0.081 R)
• M5: 4,483,897 km (0.118 R)
• M6: 5,726,307 km (0.073 R)
• M7: 6,412,662 km (0.11 R)
• M8: 6,731,605 km (0.062 R)
• M9: 7,061,169 km (0.11 R)
• M10: 7,784,924 km (0.086 R)
• M11: 10,690,563 km (0.116 R)
• M12: 14,894,114 km (0.099 R)
• M13: 17,331,512 km (0.06 R)
• M14: 18,353,714 km (0.097 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 155.2

Radius: 7.5

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 13.9 AU - 15.68 AU

Year: 20274 Days

Day: 24.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 46,809,328 km

• M1: 93,349 km (0.117 R)
• M2: 356,791 km (0.11 R)
• M3: 780,302 km (0.09 R)
• M4: 1,354,609 km (0.064 R)
• M5: 1,995,037 km (0.075 R)
• M6: 3,083,063 km (0.071 R)
• M7: 3,432,224 km (0.097 R)
• M8: 4,154,632 km (0.088 R)
• M9: 5,522,405 km (0.083 R)
• M10: 5,759,368 km (0.119 R)
• M11: 10,387,029 km (0.065 R)
• M12: 11,335,180 km (0.077 R)
• M13: 12,922,713 km (0.107 R)
• M14: 13,585,132 km (0.087 R)
• M15: 15,911,678 km (0.113 R)
• M16: 18,947,169 km (0.114 R)
• M17: 22,177,286 km (0.086 R)
• M18: 22,605,285 km (0.112 R)
• M19: 23,566,153 km (0.065 R)
• M20: 31,928,973 km (0.034 R)
• M21: 33,249,174 km (0.099 R)
• M22: 37,790,965 km (0.102 R)

Kuiper Belt

Range: 30.8 - 53.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 233 - 12,838 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit