🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.6

Radius: 1.47

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.59 AU - 0.69 AU

Year: 196 Days

Day: 33 Hours

Environment

Temp: 123 °C

Axial Tilt: 19.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 45,726,391 km

• M1: 35,305 km (0.085 R)
• M2: 163,510 km (0.033 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.79 AU - 1.13 AU

Year: 360 Days

Day: 16.7 Hours

Environment

Temp: 4 °C

Axial Tilt: 18.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.62 AU - 2.66 AU

Year: 1199 Days

Day: 34.9 Hours

Environment

Temp: -90 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.18 AU - 2.42 AU

Year: 1336 Days

Day: 25.4 Hours

Environment

Temp: -85 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.06 AU - 3.34 AU

Year: 1699 Days

Day: 21.9 Hours

Environment

Temp: -100 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,726,391 km

• M1: 33,211 km (0.111 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.71 AU - 3.21 AU

Year: 1950 Days

Day: 29.3 Hours

Environment

Temp: -110 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,726,391 km

• M1: 41,139 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.6

Radius: 11.1

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 4.39 AU - 5.53 AU

Year: 4230 Days

Day: 10.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 45,726,391 km

• M1: 142,417 km (0.066 R)
• M2: 525,837 km (0.107 R)
• M3: 1,147,266 km (0.104 R)
• M4: 1,584,989 km (0.092 R)
• M5: 2,133,864 km (0.11 R)
• M6: 2,910,875 km (0.065 R)
• M7: 3,698,059 km (0.087 R)
• M8: 4,086,116 km (0.115 R)
• M9: 4,573,207 km (0.081 R)
• M10: 5,553,821 km (0.11 R)
• M11: 5,977,333 km (0.112 R)
• M12: 7,246,820 km (0.095 R)
• M13: 7,788,215 km (0.053 R)
• M14: 8,392,889 km (0.105 R)
• M15: 8,800,544 km (0.115 R)
• M16: 10,228,455 km (0.069 R)
• M17: 11,577,080 km (0.045 R)
• M18: 11,943,595 km (0.043 R)
• M19: 12,412,584 km (0.1 R)
• M20: 13,538,159 km (0.114 R)
• M21: 15,379,708 km (0.095 R)
• M22: 16,047,962 km (0.069 R)
• M23: 16,793,707 km (0.119 R)
• M24: 17,382,824 km (0.117 R)
• M25: 20,206,334 km (0.108 R)
• M26: 21,008,179 km (0.093 R)
• M27: 22,961,328 km (0.056 R)
• M28: 23,687,327 km (0.108 R)
• M29: 25,957,475 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.2

Radius: 13.5

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.87 AU - 5.27 AU

Year: 4371 Days

Day: 15 Hours

Environment

Temp: -145 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,726,391 km

• M1: 168,746 km (0.061 R)
• M2: 619,186 km (0.116 R)
• M3: 1,059,901 km (0.055 R)
• M4: 1,571,376 km (0.079 R)
• M5: 2,469,861 km (0.091 R)
• M6: 3,669,785 km (0.098 R)
• M7: 4,872,103 km (0.102 R)
• M8: 7,049,351 km (0.074 R)
• M9: 12,680,963 km (0.036 R)
• M10: 16,265,178 km (0.086 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.7

Radius: 9.1

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 8.04 AU - 8.42 AU

Year: 9040 Days

Day: 6 Hours

Environment

Temp: -173 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,726,391 km

• M1: 113,246 km (0.073 R)
• M2: 653,743 km (0.094 R)
• M3: 1,021,005 km (0.053 R)
• M4: 1,858,903 km (0.059 R)
• M5: 2,171,114 km (0.115 R)
• M6: 2,675,857 km (0.07 R)
• M7: 4,409,696 km (0.103 R)
• M8: 5,001,655 km (0.03 R)
• M9: 6,563,756 km (0.065 R)
• M10: 8,516,008 km (0.037 R)
• M11: 11,792,351 km (0.042 R)
• M12: 12,296,047 km (0.079 R)
• M13: 14,079,104 km (0.077 R)
• M14: 15,032,492 km (0.114 R)
• M15: 16,856,090 km (0.116 R)
• M16: 18,596,811 km (0.119 R)
• M17: 19,202,682 km (0.108 R)
• M18: 22,009,736 km (0.111 R)
• M19: 25,725,747 km (0.101 R)
• M20: 30,775,424 km (0.114 R)
• M21: 37,517,201 km (0.065 R)
• M22: 37,878,031 km (0.12 R)
• M23: 40,342,806 km (0.117 R)
• M24: 43,175,591 km (0.091 R)
• M25: 44,237,586 km (0.107 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 378 - 19,011 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit