🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.92 AU - 0.94 AU

Year: 321 Days

Day: 42.8 Hours

Environment

Temp: 110 °C

Axial Tilt: 38.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 71,531,144 km

• M1: 20,046 km (0.09 R)
• M2: 49,218 km (0.092 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.2 AU - 1.88 AU

Year: 684 Days

Day: 14.2 Hours

Environment

Temp: -38 °C

Axial Tilt: 38.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.39 AU - 2.79 AU

Year: 1493 Days

Day: 19.8 Hours

Environment

Temp: -92 °C

Axial Tilt: 14.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.79 AU - 4.11 AU

Year: 2295 Days

Day: 17.6 Hours

Environment

Temp: -118 °C

Axial Tilt: 155.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 71,531,144 km

• M1: 155,283 km (0.113 R)
• M2: 901,028 km (0.051 R)

Asteroid Belt

Center: 4.83 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624

Radius: 9.1

Gravity: 7.54 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 4.73 AU - 7.67 AU

Year: 5529 Days

Day: 7.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 71,531,144 km

• M1: 113,545 km (0.09 R)
• M2: 431,889 km (0.055 R)
• M3: 873,801 km (0.102 R)
• M4: 1,234,033 km (0.108 R)
• M5: 1,629,719 km (0.046 R)
• M6: 1,934,899 km (0.104 R)
• M7: 2,262,668 km (0.039 R)
• M8: 2,806,306 km (0.101 R)
• M9: 3,649,290 km (0.102 R)
• M10: 4,058,740 km (0.029 R)
• M11: 4,574,852 km (0.117 R)
• M12: 4,969,940 km (0.032 R)
• M13: 5,359,045 km (0.101 R)
• M14: 7,764,279 km (0.117 R)
• M15: 8,365,962 km (0.103 R)
• M16: 8,678,472 km (0.042 R)
• M17: 10,050,284 km (0.105 R)
• M18: 12,649,398 km (0.07 R)
• M19: 14,407,472 km (0.058 R)
• M20: 17,372,651 km (0.111 R)
• M21: 18,140,687 km (0.06 R)
• M22: 19,607,045 km (0.067 R)
• M23: 20,159,360 km (0.116 R)
• M24: 20,651,088 km (0.074 R)
• M25: 21,805,236 km (0.105 R)
• M26: 26,938,238 km (0.075 R)
• M27: 30,559,404 km (0.101 R)
• M28: 31,115,310 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 38.2

Radius: 6.3

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 13.49 AU - 14.77 AU

Year: 19023 Days

Day: 21.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,531,144 km

• M1: 78,389 km (0.084 R)
• M2: 527,033 km (0.115 R)
• M3: 748,139 km (0.044 R)
• M4: 1,301,202 km (0.08 R)
• M5: 4,642,022 km (0.084 R)
• M6: 7,885,154 km (0.109 R)
• M7: 22,268,541 km (0.065 R)
• M8: 23,889,882 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 588.2

Radius: 3.8

Gravity: 40.73 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 12.82 AU - 16.08 AU

Year: 19673 Days

Day: 22.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,531,144 km

• M1: 47,722 km (0.112 R)
• M2: 274,362 km (0.039 R)
• M3: 1,454,241 km (0.108 R)
• M4: 1,827,039 km (0.081 R)
• M5: 2,931,819 km (0.108 R)
• M6: 3,138,414 km (0.068 R)
• M7: 3,609,797 km (0.101 R)
• M8: 3,877,577 km (0.042 R)
• M9: 4,320,387 km (0.039 R)
• M10: 4,588,017 km (0.107 R)
• M11: 4,725,946 km (0.097 R)
• M12: 6,219,980 km (0.082 R)
• M13: 7,805,568 km (0.09 R)
• M14: 9,253,526 km (0.12 R)
• M15: 9,529,684 km (0.069 R)
• M16: 11,116,767 km (0.094 R)
• M17: 11,303,466 km (0.106 R)
• M18: 12,533,908 km (0.032 R)
• M19: 13,994,582 km (0.11 R)
• M20: 14,654,009 km (0.108 R)
• M21: 17,415,735 km (0.111 R)
• M22: 18,437,190 km (0.098 R)
• M23: 22,623,387 km (0.104 R)
• M24: 23,735,198 km (0.058 R)
• M25: 24,148,238 km (0.095 R)
• M26: 26,728,502 km (0.094 R)
• M27: 38,177,676 km (0.055 R)
• M28: 40,332,783 km (0.107 R)
• M29: 46,957,425 km (0.06 R)
• M30: 49,764,779 km (0.107 R)
• M31: 55,710,845 km (0.085 R)
• M32: 59,420,573 km (0.1 R)
• M33: 62,113,186 km (0.069 R)
• M34: 64,484,910 km (0.111 R)

Kuiper Belt

Range: 30.6 - 59.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 339 - 10,868 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit