🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.82 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.27 AU - 1.99 AU

Year: 753 Days

Day: 41.5 Hours

Environment

Temp: -44 °C

Axial Tilt: 47.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.92 AU - 2.24 AU

Year: 1085 Days

Day: 38.6 Hours

Environment

Temp: -71 °C

Axial Tilt: 48.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.9 AU - 2.8 AU

Year: 1303 Days

Day: 37.4 Hours

Environment

Temp: -69 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 99,048,359 km

• M1: 75,098 km (0.114 R)
• M2: 199,564 km (0.046 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.67 AU - 2.81 AU

Year: 1640 Days

Day: 14.6 Hours

Environment

Temp: -92 °C

Axial Tilt: 23.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 99,048,359 km

• M1: 263,292 km (0.093 R)

Asteroid Belt

Center: 4.15 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348.4

Radius: 13.9

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 5.02 AU - 6.1 AU

Year: 4741 Days

Day: 12.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 99,048,359 km

• M1: 172,935 km (0.075 R)
• M2: 622,327 km (0.099 R)
• M3: 1,970,653 km (0.085 R)
• M4: 3,849,602 km (0.049 R)
• M5: 10,032,033 km (0.058 R)
• M6: 11,173,315 km (0.074 R)
• M7: 12,354,091 km (0.076 R)
• M8: 17,119,232 km (0.043 R)
• M9: 18,271,734 km (0.109 R)
• M10: 21,707,698 km (0.033 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.3

Radius: 11

Gravity: 7.23 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 5.86 AU - 7.08 AU

Year: 5952 Days

Day: 5.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 99,048,359 km

• M1: 139,126 km (0.108 R)
• M2: 548,875 km (0.087 R)
• M3: 933,042 km (0.119 R)
• M4: 1,293,722 km (0.064 R)
• M5: 2,295,131 km (0.08 R)
• M6: 3,031,750 km (0.089 R)
• M7: 3,478,001 km (0.108 R)
• M8: 4,191,882 km (0.058 R)
• M9: 5,203,612 km (0.039 R)
• M10: 9,436,783 km (0.116 R)
• M11: 11,870,591 km (0.113 R)
• M12: 12,875,739 km (0.088 R)
• M13: 13,483,256 km (0.096 R)
• M14: 15,420,549 km (0.075 R)
• M15: 17,738,568 km (0.072 R)
• M16: 23,621,803 km (0.032 R)
• M17: 25,724,999 km (0.049 R)
• M18: 26,688,859 km (0.05 R)
• M19: 30,883,882 km (0.093 R)
• M20: 31,872,425 km (0.069 R)
• M21: 32,780,185 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.1

Radius: 12.3

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 6.83 AU - 9.73 AU

Year: 8617 Days

Day: 6.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 99,048,359 km

• M1: 153,188 km (0.09 R)
• M2: 581,637 km (0.109 R)
• M3: 1,283,699 km (0.085 R)
• M4: 1,678,189 km (0.094 R)
• M5: 2,868,539 km (0.031 R)
• M6: 3,460,049 km (0.06 R)
• M7: 3,942,652 km (0.089 R)
• M8: 4,441,112 km (0.08 R)
• M9: 6,051,084 km (0.116 R)
• M10: 6,988,614 km (0.104 R)
• M11: 7,513,254 km (0.112 R)
• M12: 8,550,865 km (0.108 R)
• M13: 9,979,524 km (0.107 R)
• M14: 11,617,172 km (0.059 R)
• M15: 13,244,348 km (0.058 R)
• M16: 14,112,614 km (0.087 R)
• M17: 14,496,183 km (0.117 R)
• M18: 17,452,985 km (0.077 R)
• M19: 17,969,696 km (0.111 R)
• M20: 18,649,170 km (0.089 R)
• M21: 23,804,013 km (0.034 R)
• M22: 26,031,525 km (0.06 R)
• M23: 29,007,027 km (0.11 R)
• M24: 30,790,234 km (0.114 R)
• M25: 35,155,500 km (0.109 R)
• M26: 37,424,600 km (0.098 R)
• M27: 38,037,652 km (0.115 R)
• M28: 43,051,425 km (0.111 R)
• M29: 45,230,019 km (0.047 R)
• M30: 48,489,008 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.3

Radius: 12.9

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 7.17 AU - 9.83 AU

Year: 8962 Days

Day: 8.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 99,048,359 km

• M1: 162,014 km (0.089 R)
• M2: 912,098 km (0.105 R)
• M3: 1,427,912 km (0.1 R)
• M4: 2,035,728 km (0.117 R)
• M5: 3,674,124 km (0.119 R)
• M6: 4,209,834 km (0.058 R)
• M7: 5,850,922 km (0.069 R)
• M8: 6,546,253 km (0.118 R)
• M9: 8,873,248 km (0.03 R)
• M10: 9,692,596 km (0.065 R)
• M11: 11,933,422 km (0.12 R)
• M12: 12,871,700 km (0.119 R)
• M13: 13,795,467 km (0.056 R)
• M14: 14,697,093 km (0.048 R)
• M15: 17,195,976 km (0.068 R)
• M16: 18,546,097 km (0.102 R)
• M17: 19,247,262 km (0.1 R)
• M18: 20,619,673 km (0.032 R)
• M19: 24,753,062 km (0.097 R)
• M20: 29,618,882 km (0.102 R)
• M21: 30,362,384 km (0.114 R)
• M22: 31,886,637 km (0.06 R)
• M23: 34,851,966 km (0.068 R)
• M24: 38,371,255 km (0.087 R)
• M25: 39,382,238 km (0.081 R)
• M26: 42,791,125 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747.9

Radius: 6

Gravity: 20.78 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 17.91 AU - 18.79 AU

Year: 28428 Days

Day: 15.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 99,048,359 km

• M1: 74,799 km (0.119 R)
• M2: 587,022 km (0.058 R)
• M3: 1,017,714 km (0.103 R)
• M4: 1,814,173 km (0.09 R)
• M5: 4,138,775 km (0.05 R)
• M6: 4,653,990 km (0.072 R)
• M7: 7,355,129 km (0.056 R)
• M8: 7,618,870 km (0.096 R)
• M9: 9,961,872 km (0.06 R)
• M10: 21,667,456 km (0.116 R)
• M11: 22,209,898 km (0.101 R)
• M12: 27,887,437 km (0.074 R)
• M13: 28,788,614 km (0.096 R)
• M14: 38,735,526 km (0.101 R)
• M15: 39,373,711 km (0.082 R)
• M16: 45,259,340 km (0.061 R)
• M17: 51,705,213 km (0.044 R)
• M18: 51,897,895 km (0.065 R)
• M19: 54,048,813 km (0.112 R)
• M20: 63,027,528 km (0.115 R)
• M21: 69,378,705 km (0.114 R)
• M22: 72,226,450 km (0.045 R)
• M23: 86,821,817 km (0.092 R)
• M24: 93,799,361 km (0.108 R)
• M25: 99,048,301 km (0.045 R)

Kuiper Belt

Range: 30.3 - 60.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 555 - 18,692 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit