🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.69 AU - 1.01 AU

Year: 288 Days

Day: 44.8 Hours

Environment

Temp: 109 °C

Axial Tilt: 10.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.85 AU - 1.13 AU

Year: 362 Days

Day: 19.6 Hours

Environment

Temp: 37 °C

Axial Tilt: 36.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.44 AU - 2.04 AU

Year: 843 Days

Day: 40.1 Hours

Environment

Temp: -45 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,198,702 km

• M1: 34,557 km (0.1 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.05 AU - 4.47 AU

Year: 2676 Days

Day: 48 Hours

Environment

Temp: -131 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 63,198,702 km

• M1: 43,383 km (0.1 R)
• M2: 297,700 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.6

Radius: 9.6

Gravity: 9.58 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 6.32 AU - 6.86 AU

Year: 6210 Days

Day: 10.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 63,198,702 km

• M1: 119,529 km (0.097 R)
• M2: 610,509 km (0.096 R)
• M3: 1,555,070 km (0.055 R)
• M4: 1,899,893 km (0.087 R)
• M5: 2,279,124 km (0.087 R)
• M6: 2,746,916 km (0.108 R)
• M7: 3,128,391 km (0.065 R)
• M8: 3,614,285 km (0.082 R)
• M9: 3,949,234 km (0.097 R)
• M10: 4,304,828 km (0.106 R)
• M11: 4,654,289 km (0.104 R)
• M12: 7,314,289 km (0.111 R)
• M13: 8,965,849 km (0.107 R)
• M14: 9,270,730 km (0.077 R)
• M15: 10,512,990 km (0.089 R)
• M16: 12,498,304 km (0.105 R)
• M17: 13,494,027 km (0.086 R)
• M18: 15,455,704 km (0.11 R)
• M19: 18,708,411 km (0.08 R)
• M20: 19,279,575 km (0.045 R)
• M21: 20,682,803 km (0.038 R)
• M22: 21,448,146 km (0.06 R)
• M23: 24,699,207 km (0.094 R)
• M24: 25,386,609 km (0.049 R)
• M25: 26,263,851 km (0.046 R)
• M26: 26,889,918 km (0.077 R)
• M27: 27,709,415 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.4

Radius: 8.5

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.5 AU - 8.54 AU

Year: 6828 Days

Day: 7.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 115.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,198,702 km

• M1: 119,828 km (0.119 R)
• M2: 727,345 km (0.101 R)
• M3: 1,070,223 km (0.109 R)
• M4: 1,843,195 km (0.11 R)
• M5: 2,349,883 km (0.101 R)
• M6: 4,920,274 km (0.09 R)
• M7: 5,575,812 km (0.12 R)
• M8: 6,381,696 km (0.096 R)
• M9: 7,195,209 km (0.073 R)
• M10: 8,260,495 km (0.078 R)
• M11: 10,656,604 km (0.085 R)
• M12: 11,704,986 km (0.107 R)
• M13: 14,005,203 km (0.116 R)
• M14: 15,544,266 km (0.101 R)
• M15: 16,003,980 km (0.087 R)
• M16: 23,653,667 km (0.095 R)
• M17: 27,879,807 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 222.7

Radius: 4.8

Gravity: 9.67 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 15.38 AU - 19.34 AU

Year: 26552 Days

Day: 15.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 63,198,702 km

• M1: 59,690 km (0.105 R)
• M2: 348,563 km (0.112 R)
• M3: 644,468 km (0.097 R)
• M4: 837,898 km (0.085 R)
• M5: 1,182,272 km (0.082 R)
• M6: 1,730,548 km (0.112 R)
• M7: 2,674,960 km (0.059 R)
• M8: 2,908,332 km (0.081 R)
• M9: 3,469,773 km (0.109 R)
• M10: 3,747,726 km (0.069 R)
• M11: 4,507,533 km (0.111 R)
• M12: 7,904,751 km (0.081 R)
• M13: 8,484,443 km (0.097 R)
• M14: 8,835,549 km (0.091 R)
• M15: 10,224,416 km (0.025 R)
• M16: 11,387,240 km (0.067 R)
• M17: 12,442,653 km (0.082 R)
• M18: 15,400,652 km (0.092 R)
• M19: 22,753,387 km (0.097 R)
• M20: 25,130,049 km (0.084 R)
• M21: 28,216,103 km (0.099 R)
• M22: 28,660,708 km (0.058 R)
• M23: 32,024,566 km (0.032 R)
• M24: 32,751,911 km (0.077 R)
• M25: 34,872,460 km (0.068 R)
• M26: 36,292,443 km (0.096 R)
• M27: 36,554,688 km (0.102 R)
• M28: 37,348,904 km (0.07 R)
• M29: 38,290,024 km (0.077 R)
• M30: 48,586,845 km (0.108 R)
• M31: 54,364,614 km (0.116 R)
• M32: 55,052,764 km (0.081 R)
• M33: 56,622,196 km (0.102 R)
• M34: 58,941,561 km (0.096 R)
• M35: 63,009,426 km (0.066 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 166 - 12,428 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit