🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.46

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.5 AU - 0.64 AU

Year: 158 Days

Day: 46.9 Hours

Environment

Temp: 167 °C

Axial Tilt: 15.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.96 AU - 1.52 AU

Year: 507 Days

Day: 20.9 Hours

Environment

Temp: -4 °C

Axial Tilt: 44.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.61 AU - 2.23 AU

Year: 977 Days

Day: 29.2 Hours

Environment

Temp: -60 °C

Axial Tilt: 26.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.23 AU - 2.49 AU

Year: 1331 Days

Day: 17.1 Hours

Environment

Temp: -75 °C

Axial Tilt: 27.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,008,202 km

• M1: 389,403 km (0.113 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.38 AU - 3.5 AU

Year: 1851 Days

Day: 22.9 Hours

Environment

Temp: -101 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,008,202 km

• M1: 984,803 km (0.1 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.49 AU - 3.55 AU

Year: 1927 Days

Day: 40.3 Hours

Environment

Temp: -100 °C

Axial Tilt: 47.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674

Radius: 11.5

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 5.63 AU - 8.09 AU

Year: 6596 Days

Day: 6.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,008,202 km

• M1: 148,401 km (0.107 R)
• M2: 1,507,947 km (0.119 R)
• M3: 1,878,351 km (0.116 R)
• M4: 3,378,219 km (0.092 R)
• M5: 4,048,118 km (0.119 R)
• M6: 7,309,651 km (0.053 R)
• M7: 8,969,739 km (0.07 R)
• M8: 9,753,183 km (0.064 R)
• M9: 11,062,015 km (0.111 R)
• M10: 11,911,730 km (0.074 R)
• M11: 12,326,565 km (0.04 R)
• M12: 13,572,865 km (0.108 R)
• M13: 14,313,524 km (0.032 R)
• M14: 16,633,638 km (0.078 R)
• M15: 17,349,613 km (0.11 R)
• M16: 19,836,977 km (0.091 R)
• M17: 20,940,411 km (0.062 R)
• M18: 22,317,908 km (0.084 R)
• M19: 28,069,647 km (0.066 R)
• M20: 30,028,182 km (0.099 R)
• M21: 32,076,327 km (0.072 R)
• M22: 34,528,984 km (0.117 R)
• M23: 34,949,653 km (0.052 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.3

Radius: 8

Gravity: 8.74 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 6.48 AU - 9.24 AU

Year: 8089 Days

Day: 11.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 67,008,202 km

• M1: 100,081 km (0.093 R)
• M2: 382,821 km (0.096 R)
• M3: 781,350 km (0.098 R)
• M4: 1,178,682 km (0.114 R)
• M5: 1,493,735 km (0.109 R)
• M6: 1,805,945 km (0.086 R)
• M7: 2,994,351 km (0.062 R)
• M8: 3,564,468 km (0.034 R)
• M9: 4,443,805 km (0.043 R)
• M10: 5,681,278 km (0.107 R)
• M11: 6,876,117 km (0.104 R)
• M12: 7,436,361 km (0.086 R)
• M13: 8,437,470 km (0.112 R)
• M14: 8,776,009 km (0.086 R)
• M15: 11,001,427 km (0.073 R)
• M16: 12,460,007 km (0.112 R)
• M17: 15,820,124 km (0.098 R)
• M18: 16,335,639 km (0.107 R)
• M19: 17,879,788 km (0.104 R)
• M20: 19,009,850 km (0.115 R)
• M21: 25,558,198 km (0.055 R)
• M22: 32,528,262 km (0.111 R)
• M23: 33,256,504 km (0.095 R)
• M24: 34,315,807 km (0.069 R)
• M25: 35,397,399 km (0.12 R)
• M26: 37,970,932 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 201.2

Radius: 4.9

Gravity: 8.38 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 16.74 AU - 21.34 AU

Year: 30498 Days

Day: 21.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,008,202 km

• M1: 116,537 km (0.115 R)
• M2: 269,276 km (0.084 R)
• M3: 498,759 km (0.1 R)
• M4: 1,082,041 km (0.117 R)
• M5: 1,265,000 km (0.083 R)
• M6: 1,627,026 km (0.09 R)
• M7: 4,124,563 km (0.1 R)
• M8: 4,675,083 km (0.091 R)
• M9: 5,127,916 km (0.096 R)
• M10: 15,406,636 km (0.076 R)
• M11: 31,830,837 km (0.074 R)
• M12: 32,943,396 km (0.06 R)
• M13: 33,826,323 km (0.039 R)
• M14: 53,563,817 km (0.115 R)
• M15: 53,910,435 km (0.059 R)
• M16: 57,641,256 km (0.103 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 448 - 15,830 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit