🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.8

Radius: 9.6

Gravity: 7.73 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.6 AU - 0.8 AU

Year: 397 Days

Day: 6.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,255,308 km

• M1: 119,379 km (0.111 R)
• M2: 460,462 km (0.108 R)
• M3: 920,326 km (0.095 R)
• M4: 1,238,970 km (0.072 R)
• M5: 2,009,847 km (0.03 R)
• M6: 2,417,502 km (0.105 R)
• M7: 2,716,099 km (0.112 R)
• M8: 3,284,421 km (0.108 R)
• M9: 5,093,658 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.7

Radius: 12.2

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.64 AU - 0.9 AU

Year: 458 Days

Day: 7.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,255,308 km

• M1: 158,873 km (0.092 R)
• M2: 558,299 km (0.093 R)
• M3: 1,037,312 km (0.092 R)
• M4: 1,644,529 km (0.094 R)
• M5: 2,137,754 km (0.11 R)
• M6: 2,650,874 km (0.109 R)
• M7: 3,427,886 km (0.077 R)
• M8: 4,732,379 km (0.097 R)
• M9: 5,151,253 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.5

Radius: 14.8

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.09 AU - 1.23 AU

Year: 847 Days

Day: 11.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,255,308 km

• M1: 185,202 km (0.096 R)
• M2: 959,670 km (0.101 R)
• M3: 1,730,997 km (0.085 R)
• M4: 2,304,854 km (0.091 R)
• M5: 4,250,225 km (0.082 R)
• M6: 4,950,194 km (0.055 R)
• M7: 6,446,621 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.5

Radius: 13.7

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.15 AU - 1.71 AU

Year: 1160 Days

Day: 13.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,255,308 km

• M1: 170,542 km (0.103 R)
• M2: 778,208 km (0.038 R)
• M3: 1,288,636 km (0.117 R)
• M4: 1,761,515 km (0.077 R)
• M5: 2,498,883 km (0.059 R)
• M6: 2,940,645 km (0.101 R)
• M7: 3,391,683 km (0.091 R)
• M8: 3,841,823 km (0.111 R)
• M9: 4,809,272 km (0.093 R)
• M10: 5,321,495 km (0.053 R)
• M11: 6,591,731 km (0.049 R)
• M12: 7,822,921 km (0.094 R)
• M13: 8,698,069 km (0.086 R)
• M14: 10,269,595 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.9

Radius: 12.8

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.29 AU - 1.69 AU

Year: 1234 Days

Day: 6.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,255,308 km

• M1: 159,172 km (0.085 R)
• M2: 670,797 km (0.116 R)
• M3: 1,658,143 km (0.099 R)
• M4: 2,232,449 km (0.105 R)
• M5: 2,964,132 km (0.11 R)
• M6: 3,552,201 km (0.06 R)
• M7: 4,030,915 km (0.09 R)
• M8: 4,462,654 km (0.049 R)
• M9: 5,040,999 km (0.062 R)
• M10: 5,732,740 km (0.077 R)
• M11: 6,235,688 km (0.048 R)
• M12: 7,305,762 km (0.101 R)
• M13: 7,766,822 km (0.118 R)
• M14: 8,522,441 km (0.108 R)
• M15: 9,091,811 km (0.116 R)
• M16: 9,505,449 km (0.087 R)
• M17: 10,434,302 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.8

Radius: 9.5

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.04 AU - 2.42 AU

Year: 2259 Days

Day: 8 Hours

Environment

Temp: -204 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,255,308 km

• M1: 118,332 km (0.025 R)
• M2: 450,140 km (0.073 R)
• M3: 956,379 km (0.085 R)
• M4: 1,273,227 km (0.094 R)
• M5: 2,005,958 km (0.092 R)
• M6: 2,600,909 km (0.088 R)
• M7: 3,339,922 km (0.037 R)
• M8: 4,034,056 km (0.059 R)
• M9: 4,722,655 km (0.048 R)
• M10: 5,357,997 km (0.119 R)
• M11: 6,874,770 km (0.094 R)
• M12: 8,193,924 km (0.031 R)
• M13: 9,234,377 km (0.117 R)
• M14: 11,830,200 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.6

Radius: 10.9

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.82 AU - 3.9 AU

Year: 5144 Days

Day: 7.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,255,308 km

• M1: 135,835 km (0.12 R)
• M2: 586,723 km (0.119 R)
• M3: 1,032,973 km (0.102 R)
• M4: 2,079,261 km (0.108 R)
• M5: 2,693,210 km (0.116 R)
• M6: 3,091,590 km (0.101 R)
• M7: 3,690,280 km (0.036 R)
• M8: 5,051,770 km (0.117 R)
• M9: 5,661,681 km (0.091 R)
• M10: 7,789,860 km (0.047 R)
• M11: 8,637,183 km (0.103 R)
• M12: 10,184,773 km (0.116 R)
• M13: 14,317,863 km (0.033 R)
• M14: 15,014,390 km (0.087 R)
• M15: 16,175,868 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.9

Radius: 14.2

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 4.92 AU - 5.48 AU

Year: 8043 Days

Day: 5.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 61.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,255,308 km

• M1: 177,573 km (0.054 R)
• M2: 625,170 km (0.074 R)
• M3: 1,457,382 km (0.119 R)
• M4: 3,356,527 km (0.116 R)
• M5: 4,317,544 km (0.036 R)
• M6: 4,863,128 km (0.084 R)
• M7: 5,585,386 km (0.111 R)
• M8: 6,560,315 km (0.113 R)
• M9: 7,205,830 km (0.1 R)
• M10: 8,492,372 km (0.108 R)
• M11: 10,123,138 km (0.059 R)
• M12: 12,573,252 km (0.091 R)
• M13: 13,332,013 km (0.12 R)
• M14: 14,621,995 km (0.109 R)
• M15: 20,784,530 km (0.047 R)
• M16: 24,077,179 km (0.111 R)
• M17: 28,390,385 km (0.109 R)
• M18: 32,538,434 km (0.06 R)
• M19: 36,251,603 km (0.065 R)
• M20: 40,238,686 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 818.1

Radius: 4.7

Gravity: 37.03 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.64 AU - 6.48 AU

Year: 10118 Days

Day: 17.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,255,308 km

• M1: 58,493 km (0.118 R)
• M2: 352,153 km (0.073 R)
• M3: 649,404 km (0.045 R)
• M4: 897,438 km (0.099 R)
• M5: 1,583,643 km (0.059 R)
• M6: 2,823,660 km (0.113 R)
• M7: 3,072,142 km (0.117 R)
• M8: 5,139,884 km (0.066 R)
• M9: 5,935,445 km (0.106 R)
• M10: 6,970,363 km (0.108 R)
• M11: 8,030,862 km (0.089 R)
• M12: 9,995,980 km (0.068 R)
• M13: 11,339,668 km (0.096 R)
• M14: 13,416,535 km (0.095 R)
• M15: 18,929,666 km (0.117 R)
• M16: 22,710,602 km (0.105 R)
• M17: 25,109,255 km (0.087 R)
• M18: 40,841,715 km (0.061 R)
• M19: 42,717,672 km (0.026 R)
• M20: 46,208,837 km (0.045 R)
• M21: 50,187,692 km (0.09 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: 347 - 11,253 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit