🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.59 AU - 0.77 AU

Year: 210 Days

Day: 21.2 Hours

Environment

Temp: 178 °C

Axial Tilt: 7.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.76 AU - 1.24 AU

Year: 375 Days

Day: 27.1 Hours

Environment

Temp: 11 °C

Axial Tilt: 19.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.59 AU - 3.95 AU

Year: 2216 Days

Day: 40.9 Hours

Environment

Temp: -119 °C

Axial Tilt: 32.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.78 AU - 4.56 AU

Year: 2635 Days

Day: 16.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 14.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 48,567,127 km

• M1: 2,647,583 km (0.115 R)
• M2: 2,934,512 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.3

Radius: 12.1

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 7.2 AU - 10.68 AU

Year: 10017 Days

Day: 12.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,567,127 km

• M1: 155,731 km (0.086 R)
• M2: 1,419,085 km (0.116 R)
• M3: 3,687,887 km (0.085 R)
• M4: 4,173,332 km (0.091 R)
• M5: 5,240,563 km (0.082 R)
• M6: 5,750,243 km (0.083 R)
• M7: 7,565,763 km (0.114 R)
• M8: 8,720,509 km (0.098 R)
• M9: 15,890,585 km (0.045 R)
• M10: 16,384,557 km (0.109 R)
• M11: 17,928,557 km (0.072 R)
• M12: 18,931,760 km (0.04 R)
• M13: 21,134,290 km (0.115 R)
• M14: 23,960,044 km (0.063 R)
• M15: 26,929,113 km (0.111 R)
• M16: 29,495,614 km (0.119 R)
• M17: 30,458,276 km (0.093 R)
• M18: 33,934,931 km (0.11 R)
• M19: 35,229,551 km (0.096 R)
• M20: 36,801,824 km (0.108 R)
• M21: 43,423,475 km (0.071 R)
• M22: 46,366,514 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.3

Radius: 14.5

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 8.61 AU - 10.83 AU

Year: 11356 Days

Day: 10.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,567,127 km

• M1: 181,013 km (0.106 R)
• M2: 1,258,118 km (0.099 R)
• M3: 1,831,078 km (0.105 R)
• M4: 2,721,036 km (0.106 R)
• M5: 3,597,530 km (0.118 R)
• M6: 5,290,678 km (0.08 R)
• M7: 6,697,048 km (0.119 R)
• M8: 7,176,659 km (0.081 R)
• M9: 10,502,219 km (0.102 R)
• M10: 11,374,076 km (0.111 R)
• M11: 17,057,000 km (0.067 R)
• M12: 21,608,664 km (0.093 R)
• M13: 23,839,169 km (0.05 R)
• M14: 26,713,542 km (0.038 R)
• M15: 27,416,203 km (0.054 R)
• M16: 28,858,327 km (0.102 R)
• M17: 29,811,864 km (0.03 R)
• M18: 31,005,655 km (0.099 R)
• M19: 32,913,028 km (0.112 R)
• M20: 36,960,548 km (0.053 R)
• M21: 41,328,805 km (0.062 R)
• M22: 42,404,564 km (0.062 R)
• M23: 45,601,321 km (0.081 R)
• M24: 47,331,420 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.2

Radius: 14.2

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 8.84 AU - 13.58 AU

Year: 14065 Days

Day: 6.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 174.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 48,567,127 km

• M1: 177,722 km (0.072 R)
• M2: 828,922 km (0.087 R)
• M3: 1,296,864 km (0.086 R)
• M4: 1,868,627 km (0.072 R)
• M5: 3,047,009 km (0.039 R)
• M6: 4,159,718 km (0.114 R)
• M7: 5,168,606 km (0.036 R)
• M8: 7,020,030 km (0.073 R)
• M9: 7,462,690 km (0.078 R)
• M10: 11,432,568 km (0.105 R)
• M11: 12,219,004 km (0.083 R)
• M12: 12,981,206 km (0.096 R)
• M13: 14,992,848 km (0.073 R)
• M14: 15,935,464 km (0.049 R)
• M15: 16,632,740 km (0.112 R)
• M16: 19,548,103 km (0.05 R)
• M17: 20,509,868 km (0.068 R)
• M18: 21,251,574 km (0.083 R)
• M19: 25,232,374 km (0.101 R)
• M20: 26,565,889 km (0.061 R)
• M21: 27,151,565 km (0.05 R)
• M22: 30,955,689 km (0.051 R)
• M23: 33,378,726 km (0.097 R)
• M24: 35,101,644 km (0.12 R)
• M25: 35,925,779 km (0.11 R)
• M26: 36,642,353 km (0.111 R)
• M27: 37,612,495 km (0.074 R)
• M28: 46,422,014 km (0.116 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 12,956 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit