🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.65

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.62 AU - 0.86 AU

Year: 240 Days

Day: 36 Hours

Environment

Temp: 100 °C

Axial Tilt: 129.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.64

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.72 AU - 1 AU

Year: 300 Days

Day: 26.3 Hours

Environment

Temp: 22 °C

Axial Tilt: 28.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.36

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.18 AU - 1.44 AU

Year: 565 Days

Day: 26 Hours

Environment

Temp: -25 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,902,647 km

• M1: 205,697 km (0.099 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.47 AU - 1.63 AU

Year: 727 Days

Day: 47.3 Hours

Environment

Temp: -60 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,902,647 km

• M1: 531,072 km (0.089 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.62 AU - 4.04 AU

Year: 2289 Days

Day: 25.6 Hours

Environment

Temp: -125 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273

Radius: 10.8

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 4.44 AU - 6.14 AU

Year: 4584 Days

Day: 5.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,902,647 km

• M1: 135,984 km (0.099 R)
• M2: 522,097 km (0.107 R)
• M3: 989,889 km (0.105 R)
• M4: 1,379,741 km (0.102 R)
• M5: 2,947,228 km (0.094 R)
• M6: 3,470,222 km (0.034 R)
• M7: 3,832,697 km (0.045 R)
• M8: 4,817,201 km (0.049 R)
• M9: 7,718,353 km (0.048 R)
• M10: 9,244,550 km (0.072 R)
• M11: 9,609,419 km (0.085 R)
• M12: 10,213,346 km (0.05 R)
• M13: 12,090,949 km (0.063 R)
• M14: 14,576,667 km (0.074 R)
• M15: 15,526,913 km (0.087 R)
• M16: 16,624,811 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435

Radius: 10.9

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 9.51 AU - 12.91 AU

Year: 14140 Days

Day: 10.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,902,647 km

• M1: 163,062 km (0.053 R)
• M2: 581,487 km (0.111 R)
• M3: 944,411 km (0.105 R)
• M4: 2,843,706 km (0.054 R)
• M5: 4,222,699 km (0.077 R)
• M6: 6,922,043 km (0.101 R)
• M7: 9,976,981 km (0.113 R)
• M8: 14,883,492 km (0.104 R)
• M9: 21,198,018 km (0.103 R)
• M10: 25,561,938 km (0.048 R)
• M11: 34,696,683 km (0.119 R)
• M12: 37,999,654 km (0.073 R)
• M13: 40,314,681 km (0.113 R)
• M14: 44,100,255 km (0.068 R)
• M15: 45,792,806 km (0.111 R)
• M16: 46,799,899 km (0.114 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 233 - 17,157 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit