🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.54 AU - 0.66 AU

Year: 300 Days

Day: 42.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.7

Radius: 11.8

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.59 AU - 0.97 AU

Year: 445 Days

Day: 9.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 15,330,086 km

• M1: 146,756 km (0.074 R)
• M2: 1,006,644 km (0.03 R)
• M3: 1,511,238 km (0.109 R)
• M4: 1,946,119 km (0.114 R)
• M5: 2,421,541 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.7

Radius: 8.2

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.91 AU - 0.93 AU

Year: 570 Days

Day: 12.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 15,330,086 km

• M1: 102,026 km (0.112 R)
• M2: 401,820 km (0.117 R)
• M3: 662,868 km (0.075 R)
• M4: 974,630 km (0.113 R)
• M5: 1,256,024 km (0.089 R)
• M6: 1,778,719 km (0.11 R)
• M7: 2,500,229 km (0.113 R)
• M8: 2,859,862 km (0.119 R)
• M9: 3,306,861 km (0.091 R)
• M10: 3,649,141 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.5

Radius: 10.6

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.04 AU - 2.76 AU

Year: 2401 Days

Day: 7.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 15,330,086 km

• M1: 131,796 km (0.105 R)
• M2: 641,924 km (0.098 R)
• M3: 1,077,703 km (0.102 R)
• M4: 1,455,587 km (0.11 R)
• M5: 1,922,931 km (0.062 R)
• M6: 2,920,599 km (0.091 R)
• M7: 3,783,181 km (0.089 R)
• M8: 4,213,125 km (0.034 R)
• M9: 4,829,618 km (0.057 R)
• M10: 5,702,521 km (0.098 R)
• M11: 6,085,043 km (0.119 R)
• M12: 6,484,768 km (0.08 R)
• M13: 6,845,299 km (0.102 R)
• M14: 7,307,557 km (0.091 R)
• M15: 9,403,124 km (0.046 R)
• M16: 10,876,214 km (0.103 R)
• M17: 11,346,699 km (0.064 R)
• M18: 15,812,046 km (0.06 R)
• M19: 16,162,853 km (0.102 R)
• M20: 16,827,816 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161

Radius: 13

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.72 AU - 3.72 AU

Year: 3731 Days

Day: 13.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 15,330,086 km

• M1: 166,054 km (0.086 R)
• M2: 617,989 km (0.089 R)
• M3: 1,034,020 km (0.116 R)
• M4: 1,828,684 km (0.052 R)
• M5: 2,644,292 km (0.066 R)
• M6: 3,972,571 km (0.048 R)
• M7: 4,602,229 km (0.104 R)
• M8: 7,927,939 km (0.106 R)
• M9: 10,219,180 km (0.111 R)
• M10: 10,999,782 km (0.069 R)
• M11: 13,166,707 km (0.077 R)
• M12: 13,750,139 km (0.117 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 14,477 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit