🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.56 AU - 0.74 AU

Year: 220 Days

Day: 17 Hours

Environment

Temp: 20 °C

Axial Tilt: 32.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.75 AU - 0.77 AU

Year: 278 Days

Day: 16.3 Hours

Environment

Temp: 10 °C

Axial Tilt: 28.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.68 AU - 1.04 AU

Year: 334 Days

Day: 17.6 Hours

Environment

Temp: -24 °C

Axial Tilt: 46.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.87 AU - 1.03 AU

Year: 388 Days

Day: 26.1 Hours

Environment

Temp: -30 °C

Axial Tilt: 0.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.94 AU - 1.1 AU

Year: 432 Days

Day: 28.3 Hours

Environment

Temp: -50 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.53 AU - 3.33 AU

Year: 2101 Days

Day: 20.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,859,607 km

• M1: 1,077,553 km (0.051 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.5

Radius: 13.4

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 5.32 AU - 5.54 AU

Year: 5301 Days

Day: 14.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,859,607 km

• M1: 166,652 km (0.093 R)
• M2: 860,786 km (0.068 R)
• M3: 2,119,802 km (0.11 R)
• M4: 2,685,880 km (0.11 R)
• M5: 3,124,950 km (0.043 R)
• M6: 4,452,481 km (0.111 R)
• M7: 5,448,504 km (0.049 R)
• M8: 6,758,383 km (0.06 R)
• M9: 7,469,122 km (0.05 R)
• M10: 9,683,021 km (0.051 R)
• M11: 10,356,212 km (0.057 R)
• M12: 10,774,787 km (0.102 R)
• M13: 14,952,457 km (0.111 R)
• M14: 17,498,014 km (0.119 R)
• M15: 18,026,543 km (0.064 R)
• M16: 20,392,434 km (0.077 R)
• M17: 21,801,346 km (0.113 R)
• M18: 22,490,993 km (0.097 R)
• M19: 25,144,709 km (0.115 R)
• M20: 26,677,040 km (0.073 R)
• M21: 28,090,740 km (0.114 R)
• M22: 29,833,555 km (0.078 R)
• M23: 31,066,840 km (0.06 R)
• M24: 34,144,816 km (0.057 R)
• M25: 34,659,583 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.1

Radius: 9.1

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 5.31 AU - 7.29 AU

Year: 6625 Days

Day: 10.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 49,859,607 km

• M1: 113,694 km (0.102 R)
• M2: 442,361 km (0.108 R)
• M3: 805,435 km (0.095 R)
• M4: 1,156,092 km (0.085 R)
• M5: 1,633,010 km (0.082 R)
• M6: 2,058,616 km (0.059 R)
• M7: 2,377,260 km (0.066 R)
• M8: 2,764,120 km (0.096 R)
• M9: 3,840,327 km (0.065 R)
• M10: 4,497,959 km (0.112 R)
• M11: 6,220,130 km (0.091 R)
• M12: 6,534,435 km (0.064 R)
• M13: 7,194,760 km (0.09 R)
• M14: 8,648,253 km (0.1 R)
• M15: 9,444,114 km (0.103 R)
• M16: 10,953,406 km (0.116 R)
• M17: 12,174,125 km (0.12 R)
• M18: 13,224,601 km (0.098 R)
• M19: 15,504,922 km (0.114 R)
• M20: 18,482,219 km (0.116 R)
• M21: 19,598,518 km (0.098 R)
• M22: 20,003,030 km (0.117 R)
• M23: 21,320,988 km (0.088 R)
• M24: 24,593,591 km (0.098 R)
• M25: 25,301,937 km (0.057 R)
• M26: 26,759,469 km (0.098 R)
• M27: 28,186,632 km (0.029 R)
• M28: 29,136,728 km (0.091 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.6

Radius: 13.1

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.28 AU - 9.08 AU

Year: 10714 Days

Day: 11.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,859,607 km

• M1: 162,912 km (0.091 R)
• M2: 1,337,704 km (0.108 R)
• M3: 3,202,442 km (0.091 R)
• M4: 5,489,045 km (0.076 R)
• M5: 6,337,863 km (0.082 R)
• M6: 8,207,687 km (0.096 R)
• M7: 9,031,523 km (0.087 R)
• M8: 10,112,218 km (0.086 R)
• M9: 13,810,875 km (0.079 R)
• M10: 14,515,631 km (0.102 R)
• M11: 15,379,110 km (0.091 R)
• M12: 22,151,256 km (0.063 R)
• M13: 25,227,886 km (0.071 R)
• M14: 25,798,901 km (0.094 R)
• M15: 33,799,395 km (0.03 R)
• M16: 38,108,861 km (0.106 R)
• M17: 39,495,483 km (0.117 R)
• M18: 48,237,534 km (0.062 R)
• M19: 49,265,571 km (0.06 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 421 - 14,050 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit