🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.9

Radius: 14.3

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.55 AU - 0.55 AU

Year: 277 Days

Day: 6.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 50,992,462 km

• M1: 177,872 km (0.117 R)
• M2: 655,538 km (0.051 R)
• M3: 1,211,743 km (0.051 R)
• M4: 1,891,216 km (0.032 R)
• M5: 2,596,121 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283

Radius: 11.4

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.64 AU - 0.66 AU

Year: 355 Days

Day: 9.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 50,992,462 km

• M1: 141,819 km (0.096 R)
• M2: 743,501 km (0.07 R)
• M3: 1,449,903 km (0.069 R)
• M4: 1,845,589 km (0.11 R)
• M5: 2,465,373 km (0.11 R)
• M6: 2,869,886 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.7

Radius: 8.3

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.79 AU - 1.23 AU

Year: 688 Days

Day: 14.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,992,462 km

• M1: 103,821 km (0.093 R)
• M2: 510,727 km (0.074 R)
• M3: 790,326 km (0.111 R)
• M4: 1,050,626 km (0.082 R)
• M5: 1,552,975 km (0.091 R)
• M6: 1,916,947 km (0.062 R)
• M7: 2,293,335 km (0.094 R)
• M8: 4,289,719 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.4

Radius: 8.7

Gravity: 10.69 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.12 AU - 1.52 AU

Year: 1029 Days

Day: 11.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,992,462 km

• M1: 108,159 km (0.036 R)
• M2: 455,825 km (0.101 R)
• M3: 736,919 km (0.057 R)
• M4: 1,132,306 km (0.079 R)
• M5: 1,404,275 km (0.087 R)
• M6: 1,901,389 km (0.09 R)
• M7: 2,733,751 km (0.112 R)
• M8: 3,091,889 km (0.09 R)
• M9: 3,711,523 km (0.038 R)
• M10: 4,271,767 km (0.057 R)
• M11: 4,608,662 km (0.032 R)
• M12: 5,316,110 km (0.094 R)
• M13: 5,727,504 km (0.083 R)
• M14: 6,204,721 km (0.056 R)
• M15: 7,718,502 km (0.07 R)
• M16: 8,630,900 km (0.061 R)
• M17: 10,256,280 km (0.061 R)
• M18: 10,700,736 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.6

Radius: 11

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.74 AU - 3.98 AU

Year: 4177 Days

Day: 11.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,992,462 km

• M1: 147,055 km (0.047 R)
• M2: 823,686 km (0.106 R)
• M3: 1,205,908 km (0.032 R)
• M4: 1,664,426 km (0.11 R)
• M5: 2,580,114 km (0.071 R)
• M6: 3,480,095 km (0.116 R)
• M7: 4,337,291 km (0.081 R)
• M8: 5,429,206 km (0.119 R)
• M9: 5,945,917 km (0.095 R)
• M10: 8,050,759 km (0.082 R)
• M11: 8,450,335 km (0.032 R)
• M12: 8,897,932 km (0.052 R)
• M13: 9,507,393 km (0.086 R)
• M14: 11,629,140 km (0.102 R)
• M15: 13,026,085 km (0.064 R)
• M16: 14,192,799 km (0.086 R)
• M17: 15,225,772 km (0.1 R)
• M18: 17,166,505 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.9

Radius: 12.6

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.62 AU - 3.8 AU

Year: 4847 Days

Day: 10.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,992,462 km

• M1: 160,818 km (0.076 R)
• M2: 1,106,575 km (0.107 R)
• M3: 3,163,097 km (0.04 R)
• M4: 4,875,694 km (0.073 R)
• M5: 6,639,004 km (0.098 R)
• M6: 8,123,015 km (0.055 R)
• M7: 9,782,504 km (0.09 R)
• M8: 11,817,334 km (0.108 R)
• M9: 13,365,523 km (0.114 R)
• M10: 14,211,349 km (0.063 R)
• M11: 16,810,313 km (0.064 R)
• M12: 17,376,241 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 720.4

Radius: 7.5

Gravity: 12.81 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 5.79 AU - 6.79 AU

Year: 10700 Days

Day: 16.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 50,992,462 km

• M1: 94,546 km (0.107 R)
• M2: 356,791 km (0.085 R)
• M3: 650,152 km (0.093 R)
• M4: 888,611 km (0.046 R)
• M5: 1,128,866 km (0.053 R)
• M6: 1,467,555 km (0.115 R)
• M7: 1,761,066 km (0.111 R)
• M8: 2,294,383 km (0.088 R)
• M9: 2,756,042 km (0.084 R)
• M10: 3,399,911 km (0.118 R)
• M11: 4,824,831 km (0.098 R)
• M12: 5,080,044 km (0.107 R)
• M13: 5,652,256 km (0.073 R)
• M14: 6,266,655 km (0.1 R)
• M15: 8,063,624 km (0.058 R)
• M16: 9,871,066 km (0.106 R)
• M17: 13,125,867 km (0.056 R)
• M18: 13,373,750 km (0.086 R)
• M19: 14,200,877 km (0.108 R)
• M20: 16,959,911 km (0.105 R)
• M21: 23,969,917 km (0.064 R)
• M22: 26,645,326 km (0.108 R)
• M23: 28,986,831 km (0.082 R)
• M24: 33,265,031 km (0.11 R)
• M25: 43,457,882 km (0.095 R)
• M26: 44,844,804 km (0.101 R)
• M27: 46,404,063 km (0.111 R)
• M28: 50,232,721 km (0.098 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 515 - 10,602 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit