🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.5

Radius: 8

Gravity: 11.95 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.6 AU - 0.62 AU

Year: 329 Days

Day: 7.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,264,260 km

• M1: 99,483 km (0.099 R)
• M2: 387,309 km (0.106 R)
• M3: 656,286 km (0.103 R)
• M4: 1,021,305 km (0.041 R)
• M5: 1,368,671 km (0.049 R)
• M6: 1,830,629 km (0.082 R)
• M7: 2,168,571 km (0.11 R)
• M8: 2,585,500 km (0.119 R)
• M9: 3,249,116 km (0.108 R)
• M10: 3,723,192 km (0.09 R)
• M11: 4,499,156 km (0.096 R)
• M12: 4,794,761 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.2

Radius: 9.3

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.59 AU - 0.85 AU

Year: 422 Days

Day: 14.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,264,260 km

• M1: 119,529 km (0.053 R)
• M2: 421,417 km (0.102 R)
• M3: 744,100 km (0.086 R)
• M4: 1,094,608 km (0.119 R)
• M5: 1,436,439 km (0.076 R)
• M6: 1,891,964 km (0.111 R)
• M7: 2,408,077 km (0.104 R)
• M8: 3,226,078 km (0.062 R)
• M9: 3,906,000 km (0.083 R)
• M10: 4,243,194 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.6

Radius: 8.2

Gravity: 9.72 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.93 AU - 1.01 AU

Year: 659 Days

Day: 11.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,264,260 km

• M1: 103,223 km (0.098 R)
• M2: 377,585 km (0.085 R)
• M3: 685,457 km (0.096 R)
• M4: 979,866 km (0.042 R)
• M5: 1,339,051 km (0.107 R)
• M6: 1,662,930 km (0.067 R)
• M7: 1,922,183 km (0.082 R)
• M8: 2,257,432 km (0.102 R)
• M9: 2,664,488 km (0.114 R)
• M10: 3,694,918 km (0.09 R)
• M11: 4,066,818 km (0.112 R)
• M12: 4,802,540 km (0.115 R)
• M13: 5,106,823 km (0.085 R)
• M14: 6,314,526 km (0.043 R)
• M15: 6,638,854 km (0.065 R)
• M16: 7,103,206 km (0.094 R)
• M17: 7,387,592 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.7

Radius: 9.4

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.64 AU - 3.24 AU

Year: 3480 Days

Day: 12.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 31,264,260 km

• M1: 188,942 km (0.118 R)
• M2: 496,665 km (0.115 R)
• M3: 4,137,279 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.1

Radius: 14.4

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.77 AU - 3.79 AU

Year: 5073 Days

Day: 5.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,264,260 km

• M1: 179,069 km (0.114 R)
• M2: 744,848 km (0.115 R)
• M3: 1,313,320 km (0.118 R)
• M4: 1,945,520 km (0.101 R)
• M5: 2,534,637 km (0.107 R)
• M6: 4,682,862 km (0.115 R)
• M7: 5,297,410 km (0.092 R)
• M8: 5,911,958 km (0.093 R)
• M9: 6,573,929 km (0.092 R)
• M10: 7,042,320 km (0.116 R)
• M11: 7,659,411 km (0.102 R)
• M12: 8,583,776 km (0.098 R)
• M13: 9,288,681 km (0.081 R)
• M14: 9,804,944 km (0.036 R)
• M15: 10,814,729 km (0.113 R)
• M16: 14,214,042 km (0.055 R)
• M17: 15,101,157 km (0.115 R)
• M18: 17,425,609 km (0.085 R)
• M19: 18,269,939 km (0.096 R)
• M20: 19,200,588 km (0.091 R)
• M21: 19,979,693 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.5

Radius: 12.5

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.15 AU - 6.01 AU

Year: 7903 Days

Day: 13 Hours

Environment

Temp: -232 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 31,264,260 km

• M1: 155,432 km (0.112 R)
• M2: 585,526 km (0.05 R)
• M3: 1,041,949 km (0.11 R)
• M4: 1,441,974 km (0.075 R)
• M5: 2,319,365 km (0.085 R)
• M6: 4,035,253 km (0.091 R)
• M7: 4,848,766 km (0.1 R)
• M8: 5,544,097 km (0.105 R)
• M9: 8,576,895 km (0.116 R)
• M10: 9,412,548 km (0.09 R)
• M11: 9,967,856 km (0.066 R)
• M12: 10,544,855 km (0.031 R)
• M13: 11,713,214 km (0.098 R)
• M14: 13,022,644 km (0.077 R)
• M15: 13,889,115 km (0.094 R)
• M16: 14,609,728 km (0.112 R)
• M17: 15,418,305 km (0.052 R)
• M18: 16,388,148 km (0.116 R)
• M19: 21,937,181 km (0.098 R)
• M20: 26,932,853 km (0.057 R)
• M21: 30,588,426 km (0.099 R)
• M22: 32,849,448 km (0.111 R)
• M23: 33,913,089 km (0.051 R)
• M24: 34,889,963 km (0.099 R)
• M25: 36,899,811 km (0.071 R)
• M26: 37,471,574 km (0.033 R)
• M27: 38,867,920 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.2

Radius: 8.5

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 5.31 AU - 5.33 AU

Year: 8470 Days

Day: 14.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,264,260 km

• M1: 105,766 km (0.114 R)
• M2: 491,429 km (0.105 R)
• M3: 1,128,866 km (0.048 R)
• M4: 1,413,251 km (0.106 R)
• M5: 1,732,792 km (0.11 R)
• M6: 2,955,456 km (0.093 R)
• M7: 8,061,380 km (0.115 R)
• M8: 9,810,030 km (0.103 R)
• M9: 10,703,877 km (0.089 R)
• M10: 11,797,737 km (0.106 R)
• M11: 12,499,052 km (0.053 R)
• M12: 13,765,697 km (0.109 R)
• M13: 17,176,379 km (0.028 R)
• M14: 17,816,358 km (0.092 R)
• M15: 19,693,363 km (0.112 R)
• M16: 20,182,398 km (0.051 R)
• M17: 21,624,522 km (0.059 R)
• M18: 22,370,866 km (0.082 R)
• M19: 23,366,439 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 56.4

Radius: 7.4

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 8.74 AU - 9.08 AU

Year: 18358 Days

Day: 18.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,264,260 km

• M1: 130,150 km (0.06 R)
• M2: 533,765 km (0.075 R)
• M3: 783,743 km (0.116 R)
• M4: 1,338,901 km (0.112 R)
• M5: 1,816,118 km (0.098 R)
• M6: 2,057,270 km (0.09 R)
• M7: 2,894,868 km (0.088 R)
• M8: 3,287,264 km (0.114 R)
• M9: 3,918,866 km (0.111 R)
• M10: 5,956,538 km (0.118 R)
• M11: 6,592,329 km (0.111 R)
• M12: 12,419,017 km (0.096 R)
• M13: 14,998,982 km (0.107 R)
• M14: 15,813,991 km (0.096 R)
• M15: 17,595,702 km (0.119 R)
• M16: 20,477,854 km (0.082 R)
• M17: 23,274,138 km (0.085 R)
• M18: 24,843,419 km (0.109 R)
• M19: 30,522,154 km (0.084 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 516 - 20,142 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit