🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.51 AU - 0.81 AU

Year: 203 Days

Day: 22.6 Hours

Environment

Temp: 106 °C

Axial Tilt: 20 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 87,730,808 km

• M1: 322,383 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.99 AU - 1.53 AU

Year: 536 Days

Day: 17.2 Hours

Environment

Temp: -38 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,730,808 km

• M1: 184,454 km (0.048 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.21 AU - 1.71 AU

Year: 668 Days

Day: 21.7 Hours

Environment

Temp: -44 °C

Axial Tilt: 31.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.73

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.64 AU - 3.74 AU

Year: 2158 Days

Day: 46 Hours

Environment

Temp: -115 °C

Axial Tilt: 6.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.01

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.84 AU - 3.66 AU

Year: 2219 Days

Day: 44.7 Hours

Environment

Temp: -119 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.48 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.4

Radius: 11

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 4.35 AU - 7.05 AU

Year: 5154 Days

Day: 5.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 149.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 87,730,808 km

• M1: 142,417 km (0.107 R)
• M2: 604,525 km (0.068 R)
• M3: 1,172,847 km (0.089 R)
• M4: 1,672,953 km (0.107 R)
• M5: 2,120,849 km (0.12 R)
• M6: 2,681,691 km (0.114 R)
• M7: 3,540,533 km (0.079 R)
• M8: 5,541,704 km (0.06 R)
• M9: 6,149,220 km (0.041 R)
• M10: 7,600,918 km (0.119 R)
• M11: 8,425,502 km (0.06 R)
• M12: 9,072,512 km (0.057 R)
• M13: 9,752,435 km (0.067 R)
• M14: 11,440,647 km (0.086 R)
• M15: 11,809,854 km (0.099 R)
• M16: 13,214,878 km (0.075 R)
• M17: 13,621,485 km (0.089 R)
• M18: 18,347,132 km (0.116 R)
• M19: 19,174,707 km (0.056 R)
• M20: 21,179,468 km (0.067 R)
• M21: 23,765,118 km (0.078 R)
• M22: 24,902,062 km (0.041 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.2

Radius: 8.9

Gravity: 10.7 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.57 AU - 7.81 AU

Year: 6554 Days

Day: 5.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 87,730,808 km

• M1: 111,450 km (0.084 R)
• M2: 393,293 km (0.099 R)
• M3: 872,604 km (0.064 R)
• M4: 1,427,313 km (0.091 R)
• M5: 1,977,534 km (0.118 R)
• M6: 2,569,493 km (0.039 R)
• M7: 3,253,155 km (0.115 R)
• M8: 3,927,842 km (0.082 R)
• M9: 4,720,860 km (0.11 R)
• M10: 7,940,206 km (0.052 R)
• M11: 8,983,651 km (0.064 R)
• M12: 9,425,863 km (0.103 R)
• M13: 9,836,060 km (0.033 R)
• M14: 13,616,997 km (0.088 R)
• M15: 16,637,976 km (0.082 R)
• M16: 17,577,151 km (0.03 R)
• M17: 19,929,877 km (0.112 R)
• M18: 21,142,966 km (0.098 R)
• M19: 21,688,998 km (0.089 R)
• M20: 24,390,138 km (0.075 R)
• M21: 25,338,139 km (0.077 R)
• M22: 26,580,101 km (0.048 R)
• M23: 27,676,504 km (0.03 R)
• M24: 30,648,116 km (0.062 R)
• M25: 31,751,849 km (0.083 R)
• M26: 32,262,127 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 958.4

Radius: 5.9

Gravity: 27.53 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 11.3 AU - 17.72 AU

Year: 20934 Days

Day: 24.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 87,730,808 km

• M1: 88,712 km (0.066 R)
• M2: 511,625 km (0.084 R)
• M3: 703,559 km (0.091 R)
• M4: 2,060,112 km (0.11 R)
• M5: 2,255,786 km (0.119 R)
• M6: 3,579,877 km (0.088 R)
• M7: 4,095,391 km (0.106 R)
• M8: 5,036,811 km (0.095 R)
• M9: 9,116,195 km (0.095 R)
• M10: 9,889,317 km (0.101 R)
• M11: 10,576,719 km (0.098 R)
• M12: 16,564,523 km (0.119 R)
• M13: 17,264,941 km (0.102 R)
• M14: 17,893,850 km (0.085 R)
• M15: 18,818,664 km (0.108 R)
• M16: 21,167,351 km (0.049 R)
• M17: 21,680,172 km (0.094 R)
• M18: 29,246,833 km (0.065 R)
• M19: 32,519,436 km (0.05 R)
• M20: 34,879,043 km (0.083 R)
• M21: 35,738,483 km (0.063 R)
• M22: 36,028,104 km (0.072 R)
• M23: 38,098,987 km (0.062 R)
• M24: 47,177,633 km (0.117 R)
• M25: 50,740,157 km (0.076 R)
• M26: 53,905,947 km (0.086 R)
• M27: 55,634,102 km (0.079 R)
• M28: 56,218,281 km (0.11 R)
• M29: 63,127,459 km (0.054 R)
• M30: 65,046,650 km (0.044 R)
• M31: 70,127,293 km (0.034 R)
• M32: 73,579,563 km (0.087 R)
• M33: 76,902,281 km (0.095 R)
• M34: 77,143,433 km (0.056 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 331 - 17,088 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit