🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.9

Radius: 9.3

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.41 AU - 0.65 AU

Year: 266 Days

Day: 9.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 86,647,526 km

• M1: 115,639 km (0.082 R)
• M2: 497,114 km (0.111 R)
• M3: 872,604 km (0.064 R)
• M4: 1,193,941 km (0.086 R)
• M5: 1,579,454 km (0.107 R)
• M6: 1,978,881 km (0.081 R)
• M7: 2,346,143 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910

Radius: 9.3

Gravity: 10.52 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.7 AU - 0.86 AU

Year: 476 Days

Day: 9.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 86,647,526 km

• M1: 115,639 km (0.116 R)
• M2: 457,321 km (0.074 R)
• M3: 781,948 km (0.06 R)
• M4: 1,145,321 km (0.097 R)
• M5: 1,599,201 km (0.095 R)
• M6: 1,906,625 km (0.07 R)
• M7: 2,468,215 km (0.055 R)
• M8: 3,220,244 km (0.108 R)
• M9: 3,519,589 km (0.027 R)
• M10: 3,851,397 km (0.11 R)
• M11: 4,146,255 km (0.113 R)
• M12: 4,686,901 km (0.102 R)
• M13: 5,308,032 km (0.059 R)
• M14: 5,891,015 km (0.099 R)
• M15: 6,895,564 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.5

Radius: 12

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.79 AU - 0.79 AU

Year: 485 Days

Day: 9 Hours

Environment

Temp: -169 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 86,647,526 km

• M1: 149,747 km (0.117 R)
• M2: 530,624 km (0.058 R)
• M3: 907,909 km (0.099 R)
• M4: 1,744,461 km (0.12 R)
• M5: 2,193,554 km (0.116 R)
• M6: 2,568,446 km (0.099 R)
• M7: 3,317,931 km (0.091 R)
• M8: 4,042,583 km (0.112 R)
• M9: 5,877,700 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.1

Radius: 11.1

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.72 AU - 2.3 AU

Year: 1967 Days

Day: 14.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 155.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,647,526 km

• M1: 138,079 km (0.118 R)
• M2: 484,398 km (0.031 R)
• M3: 842,535 km (0.106 R)
• M4: 1,260,960 km (0.076 R)
• M5: 1,829,582 km (0.054 R)
• M6: 2,495,592 km (0.068 R)
• M7: 3,284,122 km (0.114 R)
• M8: 3,674,872 km (0.043 R)
• M9: 4,231,376 km (0.099 R)
• M10: 5,215,879 km (0.074 R)
• M11: 6,713,504 km (0.043 R)
• M12: 7,489,617 km (0.083 R)
• M13: 8,574,052 km (0.085 R)
• M14: 9,386,818 km (0.114 R)
• M15: 10,003,161 km (0.114 R)
• M16: 11,316,929 km (0.099 R)
• M17: 12,415,726 km (0.088 R)
• M18: 13,285,488 km (0.106 R)
• M19: 14,062,948 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.2

Radius: 14.1

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 4.66 AU - 5.9 AU

Year: 8375 Days

Day: 8.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 86,647,526 km

• M1: 175,478 km (0.1 R)
• M2: 678,426 km (0.033 R)
• M3: 1,432,699 km (0.065 R)
• M4: 1,974,841 km (0.054 R)
• M5: 3,225,480 km (0.077 R)
• M6: 4,024,482 km (0.085 R)
• M7: 5,124,774 km (0.109 R)
• M8: 5,761,612 km (0.091 R)
• M9: 7,012,699 km (0.097 R)
• M10: 7,568,755 km (0.113 R)
• M11: 9,549,430 km (0.105 R)
• M12: 10,094,565 km (0.12 R)
• M13: 10,853,625 km (0.072 R)
• M14: 13,249,435 km (0.118 R)
• M15: 14,690,212 km (0.03 R)
• M16: 17,275,712 km (0.089 R)
• M17: 20,373,734 km (0.071 R)
• M18: 24,240,241 km (0.098 R)
• M19: 25,085,469 km (0.059 R)
• M20: 26,835,016 km (0.114 R)
• M21: 28,852,044 km (0.072 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.3

Radius: 6.6

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 5.46 AU - 5.98 AU

Year: 9443 Days

Day: 23.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 86,647,526 km

• M1: 82,129 km (0.082 R)
• M2: 343,327 km (0.064 R)
• M3: 567,724 km (0.098 R)
• M4: 972,685 km (0.07 R)
• M5: 1,867,879 km (0.097 R)
• M6: 2,561,564 km (0.043 R)
• M7: 3,307,011 km (0.11 R)
• M8: 8,349,955 km (0.075 R)
• M9: 10,562,657 km (0.091 R)
• M10: 11,330,393 km (0.099 R)
• M11: 13,193,036 km (0.101 R)
• M12: 16,544,777 km (0.105 R)
• M13: 19,069,989 km (0.047 R)
• M14: 20,061,673 km (0.106 R)
• M15: 20,424,148 km (0.047 R)
• M16: 25,036,101 km (0.109 R)
• M17: 28,166,437 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 471.9

Radius: 7.3

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 5.28 AU - 7.42 AU

Year: 11045 Days

Day: 16.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 86,647,526 km

• M1: 90,806 km (0.061 R)
• M2: 415,284 km (0.11 R)
• M3: 699,370 km (0.116 R)
• M4: 1,488,349 km (0.106 R)
• M5: 1,912,459 km (0.05 R)
• M6: 2,359,009 km (0.027 R)
• M7: 3,089,645 km (0.112 R)
• M8: 3,580,775 km (0.074 R)
• M9: 4,015,506 km (0.085 R)
• M10: 6,698,095 km (0.053 R)
• M11: 7,892,036 km (0.075 R)
• M12: 8,276,203 km (0.03 R)
• M13: 10,901,945 km (0.071 R)
• M14: 12,545,577 km (0.083 R)
• M15: 13,974,535 km (0.11 R)
• M16: 16,661,164 km (0.036 R)
• M17: 21,023,138 km (0.045 R)
• M18: 22,945,172 km (0.071 R)
• M19: 23,816,280 km (0.112 R)
• M20: 24,081,966 km (0.081 R)
• M21: 26,656,845 km (0.025 R)
• M22: 27,814,583 km (0.083 R)
• M23: 28,405,793 km (0.116 R)
• M24: 30,959,878 km (0.073 R)
• M25: 31,382,193 km (0.068 R)
• M26: 31,701,434 km (0.101 R)
• M27: 35,358,205 km (0.083 R)
• M28: 36,052,040 km (0.078 R)
• M29: 40,030,894 km (0.071 R)
• M30: 41,547,368 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 981.2

Radius: 7.4

Gravity: 17.92 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 9 AU - 10.06 AU

Year: 20307 Days

Day: 18.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,647,526 km

• M1: 92,152 km (0.083 R)
• M2: 605,273 km (0.082 R)
• M3: 1,721,124 km (0.088 R)
• M4: 2,572,036 km (0.116 R)
• M5: 2,955,007 km (0.111 R)
• M6: 5,070,021 km (0.1 R)
• M7: 6,013,984 km (0.11 R)
• M8: 6,504,815 km (0.104 R)
• M9: 11,439,151 km (0.116 R)
• M10: 19,642,051 km (0.111 R)
• M11: 20,225,632 km (0.041 R)
• M12: 20,621,019 km (0.074 R)
• M13: 23,210,110 km (0.052 R)
• M14: 24,750,818 km (0.096 R)
• M15: 26,008,338 km (0.099 R)
• M16: 26,711,897 km (0.069 R)
• M17: 28,402,801 km (0.094 R)
• M18: 43,582,647 km (0.119 R)
• M19: 51,393,750 km (0.072 R)
• M20: 54,001,839 km (0.08 R)
• M21: 60,088,378 km (0.042 R)
• M22: 67,491,827 km (0.069 R)
• M23: 78,358,168 km (0.137 R)
• M24: 83,315,542 km (0.103 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 10,304 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit