🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.57 AU - 0.83 AU

Year: 222 Days

Day: 45.3 Hours

Environment

Temp: 184 °C

Axial Tilt: 46.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 31,416,286 km

• M1: 563,535 km (0.107 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.67 AU - 1.11 AU

Year: 318 Days

Day: 31.4 Hours

Environment

Temp: 30 °C

Axial Tilt: 18.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 31,416,286 km

• M1: 284,834 km (0.046 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.83 AU - 1.15 AU

Year: 373 Days

Day: 33.7 Hours

Environment

Temp: 17 °C

Axial Tilt: 43 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.53 AU - 1.97 AU

Year: 877 Days

Day: 41.9 Hours

Environment

Temp: -66 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.89 AU - 2.39 AU

Year: 1186 Days

Day: 41.4 Hours

Environment

Temp: -77 °C

Axial Tilt: 81.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.72 AU - 2.7 AU

Year: 1244 Days

Day: 13.2 Hours

Environment

Temp: -93 °C

Axial Tilt: 47.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.74 AU - 3.58 AU

Year: 2128 Days

Day: 17.2 Hours

Environment

Temp: -114 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 31,416,286 km

• M1: 932,444 km (0.094 R)
• M2: 1,806,843 km (0.084 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.6

Radius: 12.1

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 5.08 AU - 5.7 AU

Year: 4739 Days

Day: 14.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 31,416,286 km

• M1: 168,746 km (0.057 R)
• M2: 281,543 km (0.093 R)
• M3: 400,623 km (0.119 R)
• M4: 500,106 km (0.118 R)
• M5: 633,098 km (0.088 R)
• M6: 767,138 km (0.102 R)
• M7: 898,036 km (0.068 R)
• M8: 1,153,998 km (0.087 R)
• M9: 1,260,212 km (0.07 R)
• M10: 1,369,868 km (0.032 R)
• M11: 2,003,265 km (0.117 R)
• M12: 2,284,210 km (0.098 R)
• M13: 2,518,331 km (0.071 R)
• M14: 2,678,849 km (0.102 R)
• M15: 2,780,875 km (0.114 R)
• M16: 3,332,891 km (0.12 R)
• M17: 3,532,006 km (0.108 R)
• M18: 3,826,564 km (0.118 R)
• M19: 4,035,253 km (0.104 R)
• M20: 5,058,502 km (0.083 R)
• M21: 5,236,673 km (0.077 R)
• M22: 5,520,909 km (0.114 R)
• M23: 5,704,466 km (0.063 R)
• M24: 6,023,708 km (0.101 R)
• M25: 6,596,668 km (0.064 R)
• M26: 6,763,619 km (0.104 R)
• M27: 6,847,693 km (0.072 R)
• M28: 7,273,000 km (0.072 R)
• M29: 7,736,155 km (0.067 R)
• M30: 8,179,114 km (0.07 R)
• M31: 9,338,049 km (0.12 R)
• M32: 9,431,847 km (0.117 R)
• M33: 9,525,794 km (0.115 R)
• M34: 10,192,701 km (0.083 R)
• M35: 10,450,758 km (0.092 R)
• M36: 10,710,908 km (0.111 R)
• M37: 10,973,303 km (0.09 R)
• M38: 11,271,003 km (0.096 R)
• M39: 11,504,375 km (0.072 R)
• M40: 11,806,862 km (0.072 R)
• M41: 12,010,016 km (0.09 R)
• M42: 12,351,099 km (0.075 R)
• M43: 13,147,708 km (0.104 R)
• M44: 13,534,718 km (0.093 R)
• M45: 13,889,714 km (0.032 R)
• M46: 15,488,017 km (0.117 R)
• M47: 15,896,719 km (0.108 R)
• M48: 16,573,051 km (0.058 R)
• M49: 17,143,916 km (0.081 R)
• M50: 17,759,960 km (0.085 R)
• M51: 17,837,452 km (0.101 R)
• M52: 18,226,705 km (0.113 R)
• M53: 18,422,379 km (0.098 R)
• M54: 19,132,820 km (0.108 R)
• M55: 20,336,484 km (0.082 R)
• M56: 20,580,179 km (0.061 R)
• M57: 21,647,410 km (0.105 R)
• M58: 22,146,020 km (0.076 R)
• M59: 22,816,817 km (0.089 R)
• M60: 22,943,227 km (0.111 R)
• M61: 23,366,589 km (0.087 R)
• M62: 23,451,561 km (0.118 R)
• M63: 23,664,588 km (0.112 R)
• M64: 24,135,223 km (0.104 R)
• M65: 24,350,195 km (0.116 R)
• M66: 24,652,233 km (0.096 R)
• M67: 24,999,001 km (0.055 R)
• M68: 25,303,732 km (0.082 R)
• M69: 25,434,630 km (0.096 R)
• M70: 26,269,386 km (0.093 R)
• M71: 26,579,203 km (0.071 R)
• M72: 26,801,207 km (0.05 R)
• M73: 26,934,797 km (0.096 R)
• M74: 27,068,388 km (0.078 R)
• M75: 27,157,698 km (0.117 R)
• M76: 27,247,158 km (0.104 R)
• M77: 28,055,884 km (0.087 R)
• M78: 28,282,076 km (0.094 R)
• M79: 28,781,583 km (0.036 R)
• M80: 28,963,943 km (0.068 R)
• M81: 29,743,198 km (0.062 R)
• M82: 30,343,834 km (0.111 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 15,258 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit