🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.15 AU - 1.23 AU

Year: 481 Days

Day: 29.2 Hours

Environment

Temp: -8 °C

Axial Tilt: 37.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.15 AU - 1.45 AU

Year: 550 Days

Day: 41.7 Hours

Environment

Temp: -6 °C

Axial Tilt: 7.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 84,352,969 km

• M1: 32,164 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.23 AU - 1.49 AU

Year: 588 Days

Day: 18.4 Hours

Environment

Temp: -39 °C

Axial Tilt: 4.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.65 AU - 1.79 AU

Year: 837 Days

Day: 35.4 Hours

Environment

Temp: -53 °C

Axial Tilt: 36.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.9 AU - 2.34 AU

Year: 1145 Days

Day: 44.8 Hours

Environment

Temp: -72 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 84,352,969 km

• M1: 34,856 km (0.08 R)
• M2: 228,137 km (0.033 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 2.23 AU - 2.95 AU

Year: 1546 Days

Day: 22.5 Hours

Environment

Temp: -103 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,352,969 km

• M1: 30,069 km (0.04 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.7

Radius: 8.4

Gravity: 13.16 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 5.44 AU - 6.9 AU

Year: 5684 Days

Day: 9.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 84,352,969 km

• M1: 106,214 km (0.119 R)
• M2: 440,566 km (0.113 R)
• M3: 764,744 km (0.116 R)
• M4: 1,064,987 km (0.118 R)
• M5: 1,607,878 km (0.036 R)
• M6: 1,913,357 km (0.118 R)
• M7: 2,970,266 km (0.105 R)
• M8: 4,427,199 km (0.051 R)
• M9: 6,343,099 km (0.119 R)
• M10: 6,616,265 km (0.079 R)
• M11: 9,051,270 km (0.049 R)
• M12: 9,574,862 km (0.083 R)
• M13: 10,445,073 km (0.076 R)
• M14: 10,778,676 km (0.107 R)
• M15: 11,467,126 km (0.11 R)
• M16: 11,770,959 km (0.065 R)
• M17: 13,936,388 km (0.091 R)
• M18: 16,100,920 km (0.117 R)
• M19: 16,869,553 km (0.082 R)
• M20: 19,039,022 km (0.072 R)
• M21: 19,681,245 km (0.074 R)
• M22: 21,160,020 km (0.06 R)
• M23: 22,081,992 km (0.101 R)
• M24: 27,546,952 km (0.104 R)
• M25: 29,583,428 km (0.057 R)
• M26: 31,126,231 km (0.03 R)
• M27: 32,117,316 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 665.2

Radius: 5.2

Gravity: 24.6 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 14.09 AU - 17.87 AU

Year: 23690 Days

Day: 16.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 84,352,969 km

• M1: 64,776 km (0.099 R)
• M2: 295,905 km (0.094 R)
• M3: 759,359 km (0.115 R)
• M4: 1,215,333 km (0.112 R)
• M5: 1,413,550 km (0.099 R)
• M6: 2,527,456 km (0.049 R)
• M7: 3,011,854 km (0.102 R)
• M8: 4,163,309 km (0.088 R)
• M9: 4,368,856 km (0.086 R)
• M10: 6,309,440 km (0.106 R)
• M11: 6,766,162 km (0.078 R)
• M12: 8,162,359 km (0.027 R)
• M13: 8,704,502 km (0.035 R)
• M14: 10,984,523 km (0.037 R)
• M15: 11,780,084 km (0.112 R)
• M16: 19,862,708 km (0.084 R)
• M17: 20,152,928 km (0.037 R)
• M18: 21,040,492 km (0.115 R)
• M19: 24,852,096 km (0.11 R)
• M20: 25,872,204 km (0.03 R)
• M21: 27,394,512 km (0.12 R)
• M22: 33,806,576 km (0.104 R)
• M23: 37,948,492 km (0.078 R)
• M24: 43,382,335 km (0.033 R)
• M25: 45,191,572 km (0.108 R)
• M26: 46,538,551 km (0.092 R)
• M27: 61,921,401 km (0.077 R)
• M28: 68,741,119 km (0.058 R)
• M29: 71,422,362 km (0.115 R)
• M30: 78,188,075 km (0.104 R)
• M31: 82,346,148 km (0.106 R)
• M32: 83,596,637 km (0.06 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 14,500 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit