🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.71 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.23 AU - 1.61 AU

Year: 628 Days

Day: 30 Hours

Environment

Temp: -46 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.5 AU - 2.2 AU

Year: 933 Days

Day: 20.8 Hours

Environment

Temp: -72 °C

Axial Tilt: 26.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.97 AU - 3.01 AU

Year: 1457 Days

Day: 21.9 Hours

Environment

Temp: -101 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.29 AU - 2.73 AU

Year: 1475 Days

Day: 38.7 Hours

Environment

Temp: -102 °C

Axial Tilt: 28.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.7 AU - 4.2 AU

Year: 2376 Days

Day: 31.5 Hours

Environment

Temp: -107 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,471,490 km

• M1: 35,754 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452

Radius: 10.2

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 7.09 AU - 9.47 AU

Year: 8836 Days

Day: 8.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,471,490 km

• M1: 126,859 km (0.089 R)
• M2: 456,722 km (0.067 R)
• M3: 967,599 km (0.069 R)
• M4: 1,441,525 km (0.11 R)
• M5: 3,434,019 km (0.113 R)
• M6: 3,903,457 km (0.084 R)
• M7: 4,800,147 km (0.102 R)
• M8: 5,860,945 km (0.102 R)
• M9: 6,292,535 km (0.071 R)
• M10: 6,638,705 km (0.106 R)
• M11: 8,275,754 km (0.108 R)
• M12: 8,905,561 km (0.096 R)
• M13: 10,026,049 km (0.043 R)
• M14: 10,741,875 km (0.061 R)
• M15: 12,063,123 km (0.114 R)
• M16: 12,873,046 km (0.102 R)
• M17: 13,834,213 km (0.06 R)
• M18: 14,184,721 km (0.085 R)
• M19: 20,935,773 km (0.106 R)
• M20: 22,503,708 km (0.108 R)
• M21: 26,226,152 km (0.108 R)
• M22: 31,131,616 km (0.1 R)
• M23: 34,010,777 km (0.087 R)
• M24: 35,406,076 km (0.033 R)
• M25: 36,505,022 km (0.088 R)
• M26: 37,287,718 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 301.6

Radius: 4.9

Gravity: 12.56 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 11.72 AU - 13.64 AU

Year: 16745 Days

Day: 23.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,471,490 km

• M1: 60,886 km (0.104 R)
• M2: 402,269 km (0.1 R)
• M3: 630,555 km (0.107 R)
• M4: 1,326,484 km (0.115 R)
• M5: 1,590,973 km (0.098 R)
• M6: 1,743,862 km (0.07 R)
• M7: 1,940,434 km (0.095 R)
• M8: 2,477,191 km (0.084 R)
• M9: 2,662,393 km (0.07 R)
• M10: 3,131,083 km (0.076 R)
• M11: 3,574,791 km (0.101 R)
• M12: 3,785,125 km (0.113 R)
• M13: 4,772,322 km (0.035 R)
• M14: 6,177,644 km (0.116 R)
• M15: 6,519,475 km (0.098 R)
• M16: 8,936,378 km (0.08 R)
• M17: 9,773,977 km (0.1 R)
• M18: 11,718,600 km (0.072 R)
• M19: 17,228,140 km (0.095 R)
• M20: 31,379,949 km (0.106 R)
• M21: 40,315,429 km (0.111 R)
• M22: 43,266,247 km (0.112 R)
• M23: 44,653,917 km (0.099 R)
• M24: 50,046,172 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 472.6

Radius: 6

Gravity: 13.13 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 11.16 AU - 16.64 AU

Year: 19219 Days

Day: 22.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 65,471,490 km

• M1: 75,697 km (0.07 R)
• M2: 265,835 km (0.066 R)
• M3: 468,840 km (0.091 R)
• M4: 697,724 km (0.109 R)
• M5: 912,547 km (0.09 R)
• M6: 1,197,681 km (0.07 R)
• M7: 1,390,662 km (0.113 R)
• M8: 2,361,253 km (0.118 R)
• M9: 3,468,427 km (0.109 R)
• M10: 6,153,858 km (0.076 R)
• M11: 7,581,620 km (0.026 R)
• M12: 8,547,125 km (0.089 R)
• M13: 10,201,528 km (0.034 R)
• M14: 10,777,928 km (0.079 R)
• M15: 11,497,943 km (0.06 R)
• M16: 12,442,354 km (0.111 R)
• M17: 12,966,844 km (0.079 R)
• M18: 17,622,928 km (0.115 R)
• M19: 18,961,530 km (0.05 R)
• M20: 22,505,803 km (0.1 R)
• M21: 25,515,114 km (0.027 R)
• M22: 33,935,978 km (0.077 R)
• M23: 35,607,285 km (0.115 R)
• M24: 37,467,684 km (0.109 R)
• M25: 40,378,410 km (0.059 R)
• M26: 44,186,573 km (0.12 R)
• M27: 46,333,004 km (0.1 R)
• M28: 47,590,224 km (0.09 R)
• M29: 47,907,970 km (0.037 R)
• M30: 53,017,186 km (0.109 R)
• M31: 55,967,406 km (0.081 R)
• M32: 58,114,584 km (0.096 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 515 - 13,108 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit