🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.4

Radius: 14.1

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.65 AU - 0.85 AU

Year: 413 Days

Day: 6.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,666,088 km

• M1: 176,525 km (0.08 R)
• M2: 672,891 km (0.091 R)
• M3: 1,218,175 km (0.078 R)
• M4: 1,763,011 km (0.096 R)
• M5: 2,341,805 km (0.041 R)
• M6: 2,887,538 km (0.108 R)
• M7: 3,342,016 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.5

Radius: 14.6

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.7 AU - 0.94 AU

Year: 472 Days

Day: 10.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,666,088 km

• M1: 181,612 km (0.09 R)
• M2: 755,320 km (0.094 R)
• M3: 1,349,672 km (0.026 R)
• M4: 2,028,098 km (0.097 R)
• M5: 2,521,771 km (0.089 R)
• M6: 3,085,157 km (0.106 R)
• M7: 3,958,509 km (0.074 R)
• M8: 4,439,616 km (0.029 R)
• M9: 5,235,177 km (0.101 R)
• M10: 5,924,076 km (0.094 R)
• M11: 6,480,131 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.9

Radius: 8.6

Gravity: 12.14 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.71 AU - 1.07 AU

Year: 534 Days

Day: 7.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,666,088 km

• M1: 114,742 km (0.12 R)
• M2: 407,953 km (0.068 R)
• M3: 1,023,249 km (0.054 R)
• M4: 1,574,518 km (0.091 R)
• M5: 1,983,967 km (0.058 R)
• M6: 2,494,245 km (0.052 R)
• M7: 3,162,499 km (0.117 R)
• M8: 3,902,560 km (0.116 R)
• M9: 4,818,547 km (0.111 R)
• M10: 5,558,458 km (0.107 R)
• M11: 6,755,989 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.7

Radius: 8.5

Gravity: 8.07 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.88 AU - 1.24 AU

Year: 694 Days

Day: 10.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,666,088 km

• M1: 106,663 km (0.069 R)
• M2: 382,522 km (0.074 R)
• M3: 785,838 km (0.032 R)
• M4: 1,085,632 km (0.092 R)
• M5: 1,619,846 km (0.092 R)
• M6: 1,970,054 km (0.087 R)
• M7: 2,515,488 km (0.105 R)
• M8: 2,987,918 km (0.049 R)
• M9: 3,491,764 km (0.112 R)
• M10: 3,934,723 km (0.086 R)
• M11: 4,200,110 km (0.119 R)
• M12: 4,636,786 km (0.077 R)
• M13: 5,473,786 km (0.06 R)
• M14: 6,367,783 km (0.052 R)
• M15: 7,115,922 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.8

Radius: 11.3

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 3.13 AU - 3.39 AU

Year: 3742 Days

Day: 11.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,666,088 km

• M1: 140,772 km (0.104 R)
• M2: 531,372 km (0.084 R)
• M3: 958,773 km (0.105 R)
• M4: 1,367,325 km (0.062 R)
• M5: 2,184,877 km (0.04 R)
• M6: 2,641,898 km (0.041 R)
• M7: 3,249,864 km (0.105 R)
• M8: 3,989,476 km (0.113 R)
• M9: 5,194,936 km (0.094 R)
• M10: 6,206,516 km (0.074 R)
• M11: 7,100,513 km (0.054 R)
• M12: 7,468,973 km (0.089 R)
• M13: 8,012,761 km (0.119 R)
• M14: 8,686,251 km (0.109 R)
• M15: 9,360,638 km (0.088 R)
• M16: 10,417,697 km (0.083 R)
• M17: 12,589,409 km (0.051 R)
• M18: 14,356,608 km (0.108 R)
• M19: 16,602,671 km (0.083 R)
• M20: 17,530,178 km (0.06 R)
• M21: 19,309,944 km (0.077 R)
• M22: 20,706,140 km (0.052 R)
• M23: 21,081,182 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.7

Radius: 13.8

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 3.17 AU - 4.37 AU

Year: 4654 Days

Day: 13.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,666,088 km

• M1: 173,234 km (0.074 R)
• M2: 711,039 km (0.091 R)
• M3: 1,575,116 km (0.089 R)
• M4: 2,250,401 km (0.116 R)
• M5: 3,019,783 km (0.119 R)
• M6: 4,548,374 km (0.093 R)
• M7: 5,196,432 km (0.055 R)
• M8: 5,880,692 km (0.11 R)
• M9: 6,624,493 km (0.047 R)
• M10: 8,457,067 km (0.094 R)
• M11: 10,534,084 km (0.097 R)
• M12: 15,106,243 km (0.119 R)
• M13: 16,502,590 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.8

Radius: 11.4

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.02 AU - 6.58 AU

Year: 7758 Days

Day: 14.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,666,088 km

• M1: 141,819 km (0.108 R)
• M2: 694,284 km (0.079 R)
• M3: 1,575,116 km (0.04 R)
• M4: 2,182,483 km (0.115 R)
• M5: 2,635,765 km (0.054 R)
• M6: 3,756,103 km (0.108 R)
• M7: 4,145,357 km (0.067 R)
• M8: 5,197,329 km (0.118 R)
• M9: 6,877,463 km (0.101 R)
• M10: 7,427,983 km (0.062 R)
• M11: 7,896,823 km (0.083 R)
• M12: 8,500,749 km (0.079 R)
• M13: 9,716,382 km (0.085 R)
• M14: 13,310,471 km (0.027 R)
• M15: 15,002,422 km (0.08 R)
• M16: 16,107,951 km (0.053 R)
• M17: 16,833,500 km (0.099 R)
• M18: 23,598,615 km (0.11 R)
• M19: 24,455,811 km (0.092 R)
• M20: 24,852,245 km (0.079 R)
• M21: 26,232,136 km (0.118 R)
• M22: 26,983,118 km (0.05 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.7

Radius: 4.4

Gravity: 38.67 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 6.87 AU - 10.59 AU

Year: 16400 Days

Day: 16.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 68,666,088 km

• M1: 55,202 km (0.063 R)
• M2: 255,364 km (0.077 R)
• M3: 1,246,749 km (0.117 R)
• M4: 1,643,033 km (0.064 R)
• M5: 2,388,330 km (0.096 R)
• M6: 2,704,131 km (0.064 R)
• M7: 2,872,130 km (0.067 R)
• M8: 4,283,286 km (0.117 R)
• M9: 5,065,683 km (0.107 R)
• M10: 5,509,839 km (0.106 R)
• M11: 6,019,669 km (0.079 R)
• M12: 6,908,878 km (0.101 R)
• M13: 13,861,440 km (0.115 R)
• M14: 16,170,483 km (0.094 R)
• M15: 17,956,532 km (0.084 R)
• M16: 18,810,287 km (0.119 R)
• M17: 21,438,572 km (0.112 R)
• M18: 21,819,298 km (0.073 R)
• M19: 22,496,378 km (0.078 R)
• M20: 23,287,153 km (0.05 R)
• M21: 25,770,627 km (0.112 R)
• M22: 31,378,004 km (0.092 R)
• M23: 31,992,253 km (0.046 R)
• M24: 32,614,430 km (0.112 R)
• M25: 34,920,930 km (0.089 R)
• M26: 35,315,569 km (0.079 R)
• M27: 35,713,350 km (0.056 R)
• M28: 39,855,715 km (0.11 R)
• M29: 41,012,107 km (0.073 R)
• M30: 50,406,554 km (0.065 R)
• M31: 55,242,754 km (0.078 R)
• M32: 58,880,376 km (0.103 R)
• M33: 66,426,691 km (0.108 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 382 - 18,886 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit