🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.2

Radius: 10.3

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.79 AU - 0.81 AU

Year: 485 Days

Day: 5.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 51,019,077 km

• M1: 128,804 km (0.079 R)
• M2: 515,963 km (0.114 R)
• M3: 867,219 km (0.051 R)
• M4: 1,330,972 km (0.1 R)
• M5: 1,826,141 km (0.071 R)
• M6: 2,161,390 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.6

Radius: 10.3

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.92 AU - 1.26 AU

Year: 772 Days

Day: 10.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,019,077 km

• M1: 128,056 km (0.101 R)
• M2: 448,345 km (0.102 R)
• M3: 826,977 km (0.102 R)
• M4: 1,148,164 km (0.109 R)
• M5: 1,547,889 km (0.096 R)
• M6: 2,013,288 km (0.086 R)
• M7: 2,354,072 km (0.11 R)
• M8: 2,985,674 km (0.101 R)
• M9: 3,617,725 km (0.048 R)
• M10: 4,522,792 km (0.097 R)
• M11: 5,234,579 km (0.119 R)
• M12: 5,981,222 km (0.114 R)
• M13: 7,484,531 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.5

Radius: 11.6

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.21 AU - 1.29 AU

Year: 948 Days

Day: 9.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 155.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,019,077 km

• M1: 144,212 km (0.092 R)
• M2: 741,108 km (0.1 R)
• M3: 1,189,153 km (0.035 R)
• M4: 1,993,541 km (0.099 R)
• M5: 2,412,266 km (0.111 R)
• M6: 2,812,290 km (0.106 R)
• M7: 3,313,892 km (0.085 R)
• M8: 4,153,136 km (0.115 R)
• M9: 5,051,621 km (0.088 R)
• M10: 6,941,940 km (0.056 R)
• M11: 7,682,898 km (0.095 R)
• M12: 9,034,215 km (0.046 R)
• M13: 9,736,577 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.7

Radius: 11.3

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.4 AU - 1.82 AU

Year: 1386 Days

Day: 6.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,019,077 km

• M1: 140,472 km (0.08 R)
• M2: 515,365 km (0.112 R)
• M3: 1,065,436 km (0.068 R)
• M4: 1,840,054 km (0.068 R)
• M5: 2,226,764 km (0.1 R)
• M6: 3,026,963 km (0.036 R)
• M7: 4,009,373 km (0.11 R)
• M8: 4,392,493 km (0.094 R)
• M9: 5,691,750 km (0.083 R)
• M10: 7,007,164 km (0.101 R)
• M11: 7,359,168 km (0.118 R)
• M12: 8,571,958 km (0.119 R)
• M13: 10,039,214 km (0.112 R)
• M14: 11,151,474 km (0.103 R)
• M15: 11,984,734 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.7

Radius: 12.8

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.85 AU - 2.66 AU

Year: 2289 Days

Day: 8.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,019,077 km

• M1: 159,322 km (0.112 R)
• M2: 612,154 km (0.076 R)
• M3: 1,079,797 km (0.088 R)
• M4: 2,037,972 km (0.109 R)
• M5: 2,685,431 km (0.118 R)
• M6: 3,382,109 km (0.113 R)
• M7: 4,917,132 km (0.115 R)
• M8: 5,551,876 km (0.096 R)
• M9: 6,063,202 km (0.102 R)
• M10: 6,500,027 km (0.087 R)
• M11: 7,265,520 km (0.069 R)
• M12: 8,121,070 km (0.089 R)
• M13: 8,557,447 km (0.099 R)
• M14: 9,075,504 km (0.079 R)
• M15: 9,477,624 km (0.104 R)
• M16: 9,961,872 km (0.051 R)
• M17: 10,608,883 km (0.099 R)
• M18: 11,017,883 km (0.081 R)
• M19: 12,349,304 km (0.079 R)
• M20: 13,181,068 km (0.069 R)
• M21: 14,498,427 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.3

Radius: 8.5

Gravity: 11.95 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.56 AU - 3.06 AU

Year: 3195 Days

Day: 14.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,019,077 km

• M1: 105,766 km (0.092 R)
• M2: 430,543 km (0.119 R)
• M3: 823,387 km (0.057 R)
• M4: 1,220,419 km (0.106 R)
• M5: 1,890,618 km (0.089 R)
• M6: 2,622,899 km (0.107 R)
• M7: 3,009,909 km (0.111 R)
• M8: 3,301,475 km (0.086 R)
• M9: 4,179,765 km (0.116 R)
• M10: 5,180,425 km (0.033 R)
• M11: 5,987,356 km (0.079 R)
• M12: 6,630,477 km (0.046 R)
• M13: 6,906,634 km (0.084 R)
• M14: 7,416,464 km (0.062 R)
• M15: 7,883,060 km (0.081 R)
• M16: 11,190,070 km (0.071 R)
• M17: 11,983,537 km (0.05 R)
• M18: 13,195,280 km (0.025 R)
• M19: 14,080,750 km (0.119 R)
• M20: 15,005,265 km (0.105 R)
• M21: 18,140,537 km (0.116 R)
• M22: 18,500,469 km (0.087 R)
• M23: 20,501,042 km (0.025 R)
• M24: 21,822,141 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21

Radius: 12.4

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.65 AU - 3.27 AU

Year: 3454 Days

Day: 8.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,019,077 km

• M1: 162,164 km (0.087 R)
• M2: 583,132 km (0.112 R)
• M3: 1,085,482 km (0.114 R)
• M4: 1,919,640 km (0.082 R)
• M5: 2,602,704 km (0.094 R)
• M6: 4,011,317 km (0.094 R)
• M7: 4,517,108 km (0.085 R)
• M8: 5,014,969 km (0.107 R)
• M9: 6,692,710 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 944.5

Radius: 7.2

Gravity: 18.22 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 5.7 AU - 5.8 AU

Year: 9352 Days

Day: 16.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 51,019,077 km

• M1: 91,853 km (0.105 R)
• M2: 322,533 km (0.102 R)
• M3: 595,699 km (0.046 R)
• M4: 953,986 km (0.107 R)
• M5: 1,344,586 km (0.1 R)
• M6: 1,681,330 km (0.064 R)
• M7: 2,199,089 km (0.059 R)
• M8: 2,485,569 km (0.099 R)
• M9: 3,422,949 km (0.094 R)
• M10: 4,855,348 km (0.066 R)
• M11: 5,721,969 km (0.093 R)
• M12: 7,168,281 km (0.109 R)
• M13: 8,020,391 km (0.111 R)
• M14: 8,379,426 km (0.059 R)
• M15: 10,026,498 km (0.065 R)
• M16: 10,602,599 km (0.084 R)
• M17: 10,871,726 km (0.104 R)
• M18: 11,936,115 km (0.11 R)
• M19: 16,316,341 km (0.079 R)
• M20: 16,603,120 km (0.061 R)
• M21: 18,862,197 km (0.102 R)
• M22: 23,613,425 km (0.11 R)
• M23: 24,165,442 km (0.071 R)
• M24: 27,863,351 km (0.072 R)
• M25: 28,170,476 km (0.082 R)
• M26: 29,953,383 km (0.065 R)
• M27: 30,383,627 km (0.035 R)
• M28: 31,477,187 km (0.1 R)
• M29: 35,152,807 km (0.086 R)
• M30: 35,751,797 km (0.112 R)
• M31: 38,722,212 km (0.09 R)
• M32: 40,528,756 km (0.066 R)
• M33: 41,987,036 km (0.057 R)
• M34: 47,585,138 km (0.118 R)
• M35: 50,107,807 km (0.089 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 346 - 11,043 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit