🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.7

Radius: 14.2

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.53 AU - 0.75 AU

Year: 341 Days

Day: 7 Hours

Environment

Temp: -156 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 66,376,216 km

• M1: 176,525 km (0.053 R)
• M2: 1,167,163 km (0.089 R)
• M3: 2,023,760 km (0.084 R)
• M4: 2,576,973 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.2

Radius: 14.9

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.97 AU - 1.01 AU

Year: 657 Days

Day: 10.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 77.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,376,216 km

• M1: 188,793 km (0.08 R)
• M2: 718,369 km (0.074 R)
• M3: 1,372,112 km (0.118 R)
• M4: 2,082,702 km (0.048 R)
• M5: 3,021,727 km (0.072 R)
• M6: 3,533,203 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.5

Radius: 11.1

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.35 AU - 1.87 AU

Year: 1362 Days

Day: 11.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,376,216 km

• M1: 138,079 km (0.077 R)
• M2: 744,698 km (0.078 R)
• M3: 1,650,364 km (0.078 R)
• M4: 2,141,194 km (0.1 R)
• M5: 2,704,879 km (0.12 R)
• M6: 3,978,256 km (0.079 R)
• M7: 4,514,116 km (0.09 R)
• M8: 6,800,121 km (0.064 R)
• M9: 7,382,356 km (0.104 R)
• M10: 7,997,502 km (0.055 R)
• M11: 8,646,607 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.3

Radius: 12.9

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.76 AU - 2.3 AU

Year: 1929 Days

Day: 5.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,376,216 km

• M1: 160,369 km (0.099 R)
• M2: 594,053 km (0.036 R)
• M3: 1,012,478 km (0.076 R)
• M4: 1,579,155 km (0.112 R)
• M5: 2,078,513 km (0.119 R)
• M6: 2,626,191 km (0.076 R)
• M7: 3,302,223 km (0.101 R)
• M8: 4,150,144 km (0.113 R)
• M9: 4,552,862 km (0.033 R)
• M10: 5,532,279 km (0.076 R)
• M11: 6,251,545 km (0.092 R)
• M12: 6,783,216 km (0.108 R)
• M13: 8,245,835 km (0.115 R)
• M14: 8,985,297 km (0.106 R)
• M15: 10,051,481 km (0.081 R)
• M16: 10,523,013 km (0.081 R)
• M17: 11,549,704 km (0.102 R)
• M18: 14,567,990 km (0.05 R)
• M19: 16,783,385 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.1

Radius: 14.7

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.91 AU - 2.67 AU

Year: 2311 Days

Day: 12.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,376,216 km

• M1: 182,809 km (0.116 R)
• M2: 710,889 km (0.109 R)
• M3: 1,289,982 km (0.068 R)
• M4: 1,760,318 km (0.049 R)
• M5: 3,066,308 km (0.057 R)
• M6: 3,549,359 km (0.119 R)
• M7: 5,357,698 km (0.099 R)
• M8: 6,110,624 km (0.096 R)
• M9: 7,665,245 km (0.114 R)
• M10: 8,770,325 km (0.115 R)
• M11: 9,315,160 km (0.096 R)
• M12: 9,882,435 km (0.077 R)
• M13: 11,367,045 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.7

Radius: 14.9

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.8 AU - 3.26 AU

Year: 3517 Days

Day: 11.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,376,216 km

• M1: 185,501 km (0.114 R)
• M2: 874,998 km (0.093 R)
• M3: 1,941,182 km (0.047 R)
• M4: 2,885,743 km (0.101 R)
• M5: 4,272,515 km (0.096 R)
• M6: 4,829,019 km (0.043 R)
• M7: 5,536,318 km (0.119 R)
• M8: 6,632,721 km (0.111 R)
• M9: 7,382,505 km (0.11 R)
• M10: 8,543,235 km (0.039 R)
• M11: 9,226,000 km (0.106 R)
• M12: 10,508,353 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.1

Radius: 12.5

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 4.89 AU - 5.03 AU

Year: 7366 Days

Day: 7.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 78.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,376,216 km

• M1: 155,432 km (0.108 R)
• M2: 559,496 km (0.084 R)
• M3: 1,276,668 km (0.095 R)
• M4: 1,665,323 km (0.036 R)
• M5: 2,119,802 km (0.113 R)
• M6: 2,893,372 km (0.095 R)
• M7: 3,847,358 km (0.09 R)
• M8: 4,448,143 km (0.097 R)
• M9: 5,027,984 km (0.052 R)
• M10: 5,747,700 km (0.069 R)
• M11: 6,339,808 km (0.081 R)
• M12: 7,250,859 km (0.068 R)
• M13: 9,975,934 km (0.062 R)
• M14: 11,591,741 km (0.064 R)
• M15: 12,848,363 km (0.083 R)
• M16: 14,700,384 km (0.057 R)
• M17: 20,169,982 km (0.103 R)
• M18: 21,392,047 km (0.115 R)
• M19: 22,510,889 km (0.101 R)
• M20: 28,786,669 km (0.114 R)
• M21: 29,326,867 km (0.09 R)
• M22: 31,460,582 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 484.7

Radius: 3.6

Gravity: 37.4 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 7.6 AU - 11.3 AU

Year: 19372 Days

Day: 21 Hours

Environment

Temp: -239 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,376,216 km

• M1: 45,328 km (0.097 R)
• M2: 171,290 km (0.118 R)
• M3: 425,157 km (0.108 R)
• M4: 751,131 km (0.077 R)
• M5: 984,803 km (0.112 R)
• M6: 1,307,336 km (0.071 R)
• M7: 1,454,540 km (0.119 R)
• M8: 1,662,481 km (0.079 R)
• M9: 3,113,880 km (0.078 R)
• M10: 3,404,698 km (0.12 R)
• M11: 3,919,315 km (0.079 R)
• M12: 7,848,652 km (0.105 R)
• M13: 12,654,933 km (0.085 R)
• M14: 13,461,116 km (0.046 R)
• M15: 14,879,752 km (0.118 R)
• M16: 15,853,485 km (0.051 R)
• M17: 22,601,994 km (0.107 R)
• M18: 23,885,993 km (0.054 R)
• M19: 27,472,452 km (0.09 R)
• M20: 31,401,640 km (0.104 R)
• M21: 32,254,498 km (0.114 R)
• M22: 33,373,639 km (0.096 R)
• M23: 34,905,821 km (0.079 R)
• M24: 45,402,056 km (0.11 R)
• M25: 55,138,634 km (0.047 R)
• M26: 56,736,339 km (0.092 R)
• M27: 66,376,276 km (0.094 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 153 - 15,104 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit