🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.45 AU - 0.63 AU

Year: 143 Days

Day: 35.7 Hours

Environment

Temp: 195 °C

Axial Tilt: 38 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 88,341,959 km

• M1: 32,612 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.59 AU - 0.85 AU

Year: 220 Days

Day: 29.2 Hours

Environment

Temp: 130 °C

Axial Tilt: 32.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.44

Radius: 1.16

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.11 AU - 1.43 AU

Year: 515 Days

Day: 31.6 Hours

Environment

Temp: 13 °C

Axial Tilt: 6.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 88,341,959 km

• M1: 211,980 km (0.065 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.28 AU - 3.28 AU

Year: 1668 Days

Day: 35.5 Hours

Environment

Temp: -101 °C

Axial Tilt: 18.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.1

Radius: 9.2

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 8.3 AU - 8.46 AU

Year: 8730 Days

Day: 10.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 88,341,959 km

• M1: 114,592 km (0.05 R)
• M2: 413,638 km (0.075 R)
• M3: 908,657 km (0.047 R)
• M4: 1,298,510 km (0.115 R)
• M5: 2,406,132 km (0.118 R)
• M6: 2,927,630 km (0.092 R)
• M7: 3,700,453 km (0.119 R)
• M8: 4,002,341 km (0.109 R)
• M9: 5,177,582 km (0.108 R)
• M10: 6,635,563 km (0.062 R)
• M11: 7,514,151 km (0.037 R)
• M12: 8,912,742 km (0.028 R)
• M13: 9,587,129 km (0.101 R)
• M14: 11,325,008 km (0.068 R)
• M15: 11,864,906 km (0.114 R)
• M16: 14,198,184 km (0.053 R)
• M17: 16,758,552 km (0.115 R)
• M18: 17,524,643 km (0.025 R)
• M19: 18,921,288 km (0.056 R)
• M20: 19,402,844 km (0.108 R)
• M21: 20,824,024 km (0.059 R)
• M22: 21,189,940 km (0.105 R)
• M23: 21,560,045 km (0.057 R)
• M24: 23,634,070 km (0.07 R)
• M25: 26,516,073 km (0.112 R)
• M26: 29,716,570 km (0.077 R)
• M27: 30,649,313 km (0.095 R)
• M28: 31,409,569 km (0.047 R)
• M29: 32,279,630 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.7

Radius: 8.3

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 9.4 AU - 11.76 AU

Year: 12385 Days

Day: 9.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 88,341,959 km

• M1: 103,223 km (0.114 R)
• M2: 678,576 km (0.093 R)
• M3: 946,955 km (0.03 R)
• M4: 1,241,214 km (0.073 R)
• M5: 1,624,932 km (0.088 R)
• M6: 2,188,766 km (0.049 R)
• M7: 3,113,880 km (0.106 R)
• M8: 4,389,950 km (0.104 R)
• M9: 4,705,601 km (0.081 R)
• M10: 5,512,382 km (0.114 R)
• M11: 6,628,382 km (0.048 R)
• M12: 8,269,471 km (0.115 R)
• M13: 10,115,658 km (0.051 R)
• M14: 11,293,442 km (0.094 R)
• M15: 11,561,223 km (0.098 R)
• M16: 16,036,144 km (0.088 R)
• M17: 16,648,897 km (0.094 R)
• M18: 17,347,967 km (0.117 R)
• M19: 18,954,499 km (0.072 R)
• M20: 19,639,508 km (0.087 R)
• M21: 21,383,370 km (0.057 R)
• M22: 24,100,367 km (0.061 R)
• M23: 26,096,750 km (0.039 R)
• M24: 27,712,856 km (0.104 R)
• M25: 28,102,708 km (0.075 R)
• M26: 36,221,684 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 705.8

Radius: 7.7

Gravity: 11.9 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 13.53 AU - 19.95 AU

Year: 24649 Days

Day: 23.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 88,341,959 km

• M1: 95,743 km (0.098 R)
• M2: 405,709 km (0.084 R)
• M3: 672,891 km (0.107 R)
• M4: 1,048,232 km (0.063 R)
• M5: 1,393,504 km (0.078 R)
• M6: 2,575,028 km (0.096 R)
• M7: 3,014,547 km (0.054 R)
• M8: 3,295,940 km (0.117 R)
• M9: 3,751,017 km (0.096 R)
• M10: 4,010,569 km (0.118 R)
• M11: 7,063,114 km (0.104 R)
• M12: 7,359,617 km (0.087 R)
• M13: 8,137,227 km (0.106 R)
• M14: 15,100,409 km (0.119 R)
• M15: 15,593,184 km (0.081 R)
• M16: 16,266,973 km (0.068 R)
• M17: 22,691,005 km (0.103 R)
• M18: 25,930,248 km (0.106 R)
• M19: 27,115,212 km (0.096 R)
• M20: 27,599,012 km (0.113 R)
• M21: 28,335,781 km (0.079 R)
• M22: 28,834,092 km (0.069 R)
• M23: 30,886,126 km (0.1 R)
• M24: 35,422,083 km (0.066 R)
• M25: 42,947,006 km (0.118 R)
• M26: 48,396,706 km (0.116 R)
• M27: 49,647,345 km (0.047 R)
• M28: 50,371,697 km (0.111 R)
• M29: 53,339,270 km (0.091 R)
• M30: 55,445,758 km (0.084 R)
• M31: 66,376,575 km (0.076 R)
• M32: 66,815,047 km (0.065 R)
• M33: 77,198,485 km (0.094 R)
• M34: 81,385,281 km (0.081 R)
• M35: 82,898,314 km (0.059 R)

Kuiper Belt

Range: 30.5 - 46.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 415 - 14,815 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit