🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.02 AU - 1.1 AU

Year: 405 Days

Day: 16.3 Hours

Environment

Temp: 16 °C

Axial Tilt: 19.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.74 AU - 1.8 AU

Year: 873 Days

Day: 31 Hours

Environment

Temp: -69 °C

Axial Tilt: 49.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.86 AU - 3.08 AU

Year: 1440 Days

Day: 47.4 Hours

Environment

Temp: -84 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.38 AU - 2.74 AU

Year: 1519 Days

Day: 16.6 Hours

Environment

Temp: -91 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.95 AU - 4.19 AU

Year: 2502 Days

Day: 41.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 85,182,887 km

• M1: 157,078 km (0.068 R)
• M2: 1,424,621 km (0.107 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.84 AU - 4.68 AU

Year: 3261 Days

Day: 35.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 10.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.8

Radius: 14.4

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 10.05 AU - 11.37 AU

Year: 12998 Days

Day: 5.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 85,182,887 km

• M1: 185,352 km (0.059 R)
• M2: 1,114,055 km (0.103 R)
• M3: 1,661,284 km (0.035 R)
• M4: 2,682,739 km (0.119 R)
• M5: 3,692,524 km (0.087 R)
• M6: 4,173,332 km (0.086 R)
• M7: 4,666,107 km (0.096 R)
• M8: 5,197,778 km (0.085 R)
• M9: 5,804,846 km (0.045 R)
• M10: 6,687,623 km (0.118 R)
• M11: 9,385,322 km (0.043 R)
• M12: 12,036,794 km (0.101 R)
• M13: 14,491,546 km (0.052 R)
• M14: 14,953,205 km (0.118 R)
• M15: 17,117,138 km (0.054 R)
• M16: 18,774,682 km (0.119 R)
• M17: 21,628,711 km (0.114 R)
• M18: 23,383,643 km (0.083 R)
• M19: 23,836,925 km (0.101 R)
• M20: 28,594,436 km (0.113 R)
• M21: 31,469,408 km (0.067 R)
• M22: 34,766,545 km (0.032 R)
• M23: 35,834,973 km (0.1 R)
• M24: 38,791,177 km (0.102 R)
• M25: 42,710,491 km (0.055 R)
• M26: 46,886,516 km (0.027 R)
• M27: 48,925,385 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150

Radius: 12.8

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 10.27 AU - 12.69 AU

Year: 14425 Days

Day: 5.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,182,887 km

• M1: 205,398 km (0.118 R)
• M2: 673,190 km (0.093 R)
• M3: 1,274,574 km (0.119 R)
• M4: 1,959,732 km (0.091 R)
• M5: 2,388,330 km (0.095 R)
• M6: 3,058,828 km (0.108 R)
• M7: 3,757,300 km (0.093 R)
• M8: 5,323,141 km (0.12 R)
• M9: 5,974,341 km (0.084 R)
• M10: 6,853,677 km (0.067 R)
• M11: 7,778,790 km (0.105 R)
• M12: 10,959,390 km (0.098 R)
• M13: 11,808,957 km (0.049 R)
• M14: 13,639,735 km (0.113 R)
• M15: 15,162,193 km (0.083 R)
• M16: 24,426,490 km (0.096 R)
• M17: 35,256,628 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 892.7

Radius: 4.3

Gravity: 48.28 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 12.17 AU - 17.09 AU

Year: 20753 Days

Day: 22.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 85,182,887 km

• M1: 53,706 km (0.052 R)
• M2: 323,879 km (0.086 R)
• M3: 501,901 km (0.095 R)
• M4: 808,576 km (0.064 R)
• M5: 1,230,293 km (0.062 R)
• M6: 1,515,426 km (0.057 R)
• M7: 1,766,601 km (0.087 R)
• M8: 1,942,379 km (0.055 R)
• M9: 2,306,350 km (0.115 R)
• M10: 2,445,177 km (0.097 R)
• M11: 3,030,105 km (0.115 R)
• M12: 4,125,460 km (0.089 R)
• M13: 4,911,597 km (0.099 R)
• M14: 5,339,896 km (0.112 R)
• M15: 7,060,720 km (0.083 R)
• M16: 7,656,718 km (0.115 R)
• M17: 8,448,241 km (0.058 R)
• M18: 9,062,190 km (0.053 R)
• M19: 15,245,070 km (0.097 R)
• M20: 17,626,369 km (0.031 R)
• M21: 21,543,141 km (0.079 R)
• M22: 24,416,766 km (0.067 R)
• M23: 26,234,829 km (0.071 R)
• M24: 26,702,921 km (0.068 R)
• M25: 29,503,842 km (0.088 R)
• M26: 29,756,363 km (0.096 R)
• M27: 31,170,512 km (0.101 R)
• M28: 32,360,413 km (0.108 R)
• M29: 34,689,951 km (0.114 R)
• M30: 36,982,389 km (0.089 R)
• M31: 38,315,306 km (0.109 R)
• M32: 44,793,941 km (0.078 R)
• M33: 49,614,433 km (0.116 R)
• M34: 53,448,477 km (0.038 R)
• M35: 53,635,923 km (0.073 R)
• M36: 53,823,668 km (0.048 R)
• M37: 58,463,297 km (0.098 R)
• M38: 67,429,445 km (0.107 R)
• M39: 77,269,245 km (0.085 R)
• M40: 83,407,694 km (0.114 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 16,568 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit