🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.95 AU - 0.99 AU

Year: 344 Days

Day: 36.6 Hours

Environment

Temp: 141 °C

Axial Tilt: 20.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.76 AU - 1.76 AU

Year: 840 Days

Day: 42.7 Hours

Environment

Temp: -48 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.5 AU - 2.36 AU

Year: 965 Days

Day: 22.1 Hours

Environment

Temp: -48 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.84 AU - 3.58 AU

Year: 2070 Days

Day: 27.3 Hours

Environment

Temp: -110 °C

Axial Tilt: 19 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 3.69 AU - 4.79 AU

Year: 3142 Days

Day: 14.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,748,685 km

• M1: 3,761,638 km (0.098 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.4 AU - 5.1 AU

Year: 3153 Days

Day: 38.9 Hours

Environment

Temp: -115 °C

Axial Tilt: 3.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,748,685 km

• M1: 45,777 km (0.094 R)

Asteroid Belt

Center: 4.91 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.9

Radius: 10.7

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 4.56 AU - 6.58 AU

Year: 4731 Days

Day: 11.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,748,685 km

• M1: 132,993 km (0.058 R)
• M2: 587,920 km (0.084 R)
• M3: 931,995 km (0.117 R)
• M4: 1,520,812 km (0.071 R)
• M5: 2,410,171 km (0.111 R)
• M6: 2,960,991 km (0.091 R)
• M7: 4,120,524 km (0.064 R)
• M8: 4,465,646 km (0.052 R)
• M9: 4,937,777 km (0.095 R)
• M10: 5,648,965 km (0.025 R)
• M11: 6,492,099 km (0.092 R)
• M12: 6,824,954 km (0.106 R)
• M13: 7,930,333 km (0.092 R)
• M14: 8,427,895 km (0.051 R)
• M15: 9,359,142 km (0.067 R)
• M16: 12,463,896 km (0.107 R)
• M17: 13,563,590 km (0.1 R)
• M18: 14,500,222 km (0.087 R)
• M19: 16,687,343 km (0.103 R)
• M20: 20,687,740 km (0.089 R)
• M21: 21,338,191 km (0.084 R)
• M22: 25,449,590 km (0.118 R)
• M23: 28,348,348 km (0.043 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 913.7

Radius: 4.6

Gravity: 43.18 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 16.58 AU - 18.96 AU

Year: 26959 Days

Day: 23.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 66,748,685 km

• M1: 73,303 km (0.099 R)
• M2: 349,760 km (0.116 R)
• M3: 714,479 km (0.082 R)
• M4: 937,231 km (0.113 R)
• M5: 1,144,873 km (0.092 R)
• M6: 1,316,312 km (0.113 R)
• M7: 1,577,809 km (0.117 R)
• M8: 2,251,897 km (0.12 R)
• M9: 2,446,823 km (0.104 R)
• M10: 3,159,507 km (0.12 R)
• M11: 4,362,124 km (0.064 R)
• M12: 5,796,020 km (0.045 R)
• M13: 6,257,380 km (0.105 R)
• M14: 7,898,618 km (0.093 R)
• M15: 8,349,805 km (0.104 R)
• M16: 8,998,013 km (0.084 R)
• M17: 10,866,939 km (0.119 R)
• M18: 15,350,986 km (0.086 R)
• M19: 17,519,855 km (0.103 R)
• M20: 21,682,865 km (0.105 R)
• M21: 24,876,181 km (0.094 R)
• M22: 32,034,290 km (0.061 R)
• M23: 33,322,776 km (0.066 R)
• M24: 33,468,036 km (0.103 R)
• M25: 42,635,842 km (0.113 R)
• M26: 51,770,737 km (0.034 R)
• M27: 54,342,773 km (0.039 R)
• M28: 61,251,801 km (0.104 R)
• M29: 65,255,938 km (0.113 R)
• M30: 67,786,984 km (0.071 R)
• M31: 72,068,325 km (0.092 R)
• M32: 73,288,894 km (0.107 R)
• M33: 73,780,922 km (0.116 R)
• M34: 76,274,120 km (0.08 R)
• M35: 90,431,165 km (0.08 R)
• M36: 90,997,243 km (0.073 R)
• M37: 92,136,281 km (0.113 R)
• M38: 96,198,013 km (0.072 R)
• M39: 97,380,136 km (0.106 R)
• M40: 98,871,327 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204

Radius: 3.9

Gravity: 13.41 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 19.13 AU - 19.13 AU

Year: 30112 Days

Day: 16.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 92.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,748,685 km

• M1: 62,233 km (0.114 R)
• M2: 251,773 km (0.069 R)
• M3: 430,991 km (0.08 R)
• M4: 566,228 km (0.072 R)
• M5: 798,105 km (0.101 R)
• M6: 2,359,458 km (0.11 R)
• M7: 2,787,457 km (0.094 R)
• M8: 6,086,090 km (0.117 R)
• M9: 7,847,755 km (0.036 R)
• M10: 9,159,130 km (0.073 R)
• M11: 9,866,578 km (0.069 R)
• M12: 20,561,928 km (0.115 R)
• M13: 22,055,513 km (0.116 R)
• M14: 22,247,148 km (0.116 R)
• M15: 30,618,196 km (0.09 R)
• M16: 34,584,634 km (0.101 R)
• M17: 47,866,980 km (0.081 R)
• M18: 53,010,005 km (0.071 R)
• M19: 54,220,103 km (0.103 R)
• M20: 64,963,923 km (0.115 R)
• M21: 65,951,418 km (0.027 R)

Kuiper Belt

Range: 30.5 - 54.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 19,772 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit