🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.78 AU - 0.9 AU

Year: 271 Days

Day: 20.4 Hours

Environment

Temp: 155 °C

Axial Tilt: 39 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.86 AU - 0.86 AU

Year: 280 Days

Day: 40.5 Hours

Environment

Temp: 154 °C

Axial Tilt: 6.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 30,766,864 km

• M1: 37,250 km (0.052 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.83 AU - 0.89 AU

Year: 280 Days

Day: 35.6 Hours

Environment

Temp: 179 °C

Axial Tilt: 34.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.27

Radius: 1.61

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.91 AU - 1.95 AU

Year: 942 Days

Day: 26.5 Hours

Environment

Temp: -40 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.9 AU - 2.4 AU

Year: 1108 Days

Day: 20.3 Hours

Environment

Temp: -61 °C

Axial Tilt: 14.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.86 AU - 2.92 AU

Year: 1299 Days

Day: 45 Hours

Environment

Temp: -65 °C

Axial Tilt: 37.5 °

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: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.88 AU - 4.44 AU

Year: 2461 Days

Day: 14.8 Hours

Environment

Temp: -113 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,766,864 km

• M1: 256,261 km (0.029 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.4

Radius: 11.6

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 5.03 AU - 6.47 AU

Year: 4846 Days

Day: 12.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 30,766,864 km

• M1: 144,212 km (0.107 R)
• M2: 646,113 km (0.098 R)
• M3: 1,013,077 km (0.086 R)
• M4: 1,657,993 km (0.068 R)
• M5: 2,953,361 km (0.111 R)
• M6: 3,426,090 km (0.09 R)
• M7: 3,926,346 km (0.107 R)
• M8: 4,993,128 km (0.049 R)
• M9: 5,638,194 km (0.104 R)
• M10: 7,656,419 km (0.109 R)
• M11: 8,022,186 km (0.084 R)
• M12: 9,231,236 km (0.061 R)
• M13: 9,987,004 km (0.12 R)
• M14: 10,647,778 km (0.096 R)
• M15: 11,910,683 km (0.116 R)
• M16: 12,806,475 km (0.081 R)
• M17: 14,509,198 km (0.083 R)
• M18: 15,940,850 km (0.031 R)
• M19: 19,418,851 km (0.115 R)
• M20: 20,101,466 km (0.107 R)
• M21: 20,870,698 km (0.105 R)
• M22: 21,370,505 km (0.103 R)
• M23: 27,577,320 km (0.065 R)
• M24: 28,527,117 km (0.094 R)
• M25: 29,142,862 km (0.104 R)
• M26: 30,309,875 km (0.042 R)

Kuiper Belt

Range: 31.2 - 61.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 299 - 12,694 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit