🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.76 AU - 0.9 AU

Year: 278 Days

Day: 33.3 Hours

Environment

Temp: 116 °C

Axial Tilt: 38 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 63,777,704 km

• M1: 86,019 km (0.066 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.85 AU - 0.97 AU

Year: 319 Days

Day: 28.5 Hours

Environment

Temp: 121 °C

Axial Tilt: 12.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.67 AU - 1.75 AU

Year: 821 Days

Day: 36.8 Hours

Environment

Temp: -59 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.81 AU - 2.05 AU

Year: 984 Days

Day: 35.5 Hours

Environment

Temp: -56 °C

Axial Tilt: 33 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.9

Radius: 11.1

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 6.44 AU - 9.52 AU

Year: 8275 Days

Day: 13.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,777,704 km

• M1: 138,228 km (0.088 R)
• M2: 684,709 km (0.074 R)
• M3: 1,240,466 km (0.06 R)
• M4: 1,689,110 km (0.108 R)
• M5: 2,052,333 km (0.086 R)
• M6: 2,415,557 km (0.058 R)
• M7: 2,763,970 km (0.053 R)
• M8: 3,295,940 km (0.108 R)
• M9: 4,378,131 km (0.092 R)
• M10: 5,162,623 km (0.096 R)
• M11: 9,574,862 km (0.11 R)
• M12: 17,397,484 km (0.078 R)
• M13: 18,288,938 km (0.091 R)
• M14: 19,210,461 km (0.093 R)
• M15: 20,162,651 km (0.077 R)
• M16: 21,924,017 km (0.082 R)
• M17: 26,458,927 km (0.109 R)
• M18: 26,817,812 km (0.086 R)
• M19: 28,192,766 km (0.118 R)
• M20: 29,326,269 km (0.071 R)
• M21: 31,082,847 km (0.109 R)
• M22: 31,987,017 km (0.09 R)
• M23: 33,323,973 km (0.107 R)
• M24: 34,804,992 km (0.12 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 311.8

Radius: 5.6

Gravity: 9.94 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 11.53 AU - 13.39 AU

Year: 16145 Days

Day: 16.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 127.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,777,704 km

• M1: 84,822 km (0.119 R)
• M2: 365,168 km (0.115 R)
• M3: 1,424,172 km (0.087 R)
• M4: 1,668,615 km (0.077 R)
• M5: 1,890,767 km (0.027 R)
• M6: 3,145,594 km (0.099 R)
• M7: 4,874,647 km (0.071 R)
• M8: 5,744,259 km (0.057 R)
• M9: 10,163,081 km (0.114 R)
• M10: 10,852,129 km (0.074 R)
• M11: 12,441,606 km (0.066 R)
• M12: 15,447,925 km (0.087 R)
• M13: 18,283,702 km (0.081 R)
• M14: 19,381,003 km (0.058 R)
• M15: 19,621,706 km (0.084 R)
• M16: 21,619,884 km (0.069 R)
• M17: 22,668,117 km (0.102 R)
• M18: 23,114,666 km (0.059 R)
• M19: 23,385,438 km (0.112 R)
• M20: 25,436,126 km (0.11 R)
• M21: 29,360,676 km (0.112 R)
• M22: 38,763,052 km (0.101 R)
• M23: 39,917,349 km (0.101 R)
• M24: 40,699,597 km (0.055 R)
• M25: 41,491,867 km (0.101 R)
• M26: 45,750,021 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 439.2

Radius: 5.5

Gravity: 14.52 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 11.71 AU - 16.23 AU

Year: 19168 Days

Day: 17.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 63,777,704 km

• M1: 69,862 km (0.047 R)
• M2: 301,141 km (0.095 R)
• M3: 895,194 km (0.065 R)
• M4: 1,350,420 km (0.072 R)
• M5: 2,235,291 km (0.109 R)
• M6: 2,442,185 km (0.117 R)
• M7: 2,730,311 km (0.104 R)
• M8: 4,054,701 km (0.049 R)
• M9: 5,532,428 km (0.114 R)
• M10: 6,896,312 km (0.115 R)
• M11: 7,984,338 km (0.075 R)
• M12: 11,316,780 km (0.104 R)
• M13: 17,726,600 km (0.085 R)
• M14: 19,315,778 km (0.111 R)
• M15: 22,202,867 km (0.113 R)
• M16: 26,200,272 km (0.106 R)
• M17: 29,153,783 km (0.026 R)
• M18: 30,886,874 km (0.083 R)
• M19: 37,158,914 km (0.098 R)
• M20: 41,016,595 km (0.038 R)
• M21: 42,021,144 km (0.118 R)
• M22: 45,284,921 km (0.064 R)
• M23: 47,290,879 km (0.06 R)
• M24: 47,761,963 km (0.11 R)
• M25: 51,644,775 km (0.095 R)
• M26: 51,977,481 km (0.12 R)
• M27: 52,479,232 km (0.118 R)
• M28: 53,662,701 km (0.028 R)
• M29: 54,863,822 km (0.116 R)
• M30: 57,855,181 km (0.109 R)
• M31: 60,398,944 km (0.106 R)
• M32: 63,586,725 km (0.118 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 256 - 20,156 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit