🌌 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: 249.7

Radius: 13.3

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.61 AU - 0.79 AU

Year: 404 Days

Day: 5.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 65.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,837,039 km

• M1: 178,171 km (0.109 R)
• M2: 614,847 km (0.103 R)
• M3: 1,034,768 km (0.058 R)
• M4: 1,567,337 km (0.105 R)
• M5: 2,057,868 km (0.112 R)
• M6: 2,524,015 km (0.065 R)
• M7: 3,266,470 km (0.116 R)
• M8: 3,739,348 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.3

Radius: 12.4

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.72 AU - 0.92 AU

Year: 513 Days

Day: 10.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,837,039 km

• M1: 154,235 km (0.086 R)
• M2: 600,336 km (0.057 R)
• M3: 1,010,384 km (0.108 R)
• M4: 1,610,870 km (0.104 R)
• M5: 2,134,612 km (0.061 R)
• M6: 2,892,624 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275

Radius: 11.5

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.9 AU - 1.22 AU

Year: 753 Days

Day: 7.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 83.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,837,039 km

• M1: 143,016 km (0.115 R)
• M2: 511,475 km (0.116 R)
• M3: 1,179,729 km (0.098 R)
• M4: 1,605,036 km (0.082 R)
• M5: 2,284,659 km (0.076 R)
• M6: 2,661,197 km (0.117 R)
• M7: 3,034,593 km (0.054 R)
• M8: 3,654,826 km (0.075 R)
• M9: 4,651,596 km (0.051 R)
• M10: 5,213,935 km (0.066 R)
• M11: 5,768,793 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.1

Radius: 10.3

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.78 AU - 1.92 AU

Year: 1737 Days

Day: 10 Hours

Environment

Temp: -199 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,837,039 km

• M1: 128,056 km (0.053 R)
• M2: 486,642 km (0.104 R)
• M3: 1,009,636 km (0.077 R)
• M4: 2,147,178 km (0.075 R)
• M5: 3,498,197 km (0.098 R)
• M6: 4,724,899 km (0.116 R)
• M7: 6,641,697 km (0.11 R)
• M8: 7,572,046 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.9

Radius: 12.5

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.45 AU - 2.27 AU

Year: 1751 Days

Day: 6.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,837,039 km

• M1: 155,432 km (0.095 R)
• M2: 667,356 km (0.056 R)
• M3: 1,097,450 km (0.102 R)
• M4: 1,608,476 km (0.068 R)
• M5: 2,082,253 km (0.118 R)
• M6: 3,350,992 km (0.069 R)
• M7: 3,836,437 km (0.051 R)
• M8: 4,270,271 km (0.115 R)
• M9: 4,778,904 km (0.093 R)
• M10: 5,192,392 km (0.117 R)
• M11: 5,869,921 km (0.053 R)
• M12: 6,927,728 km (0.052 R)
• M13: 7,545,567 km (0.095 R)
• M14: 8,699,266 km (0.093 R)
• M15: 9,452,641 km (0.107 R)
• M16: 11,936,564 km (0.099 R)
• M17: 13,889,414 km (0.061 R)
• M18: 15,382,401 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.8

Radius: 10.5

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 4.33 AU - 5.07 AU

Year: 7033 Days

Day: 9.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,837,039 km

• M1: 131,646 km (0.081 R)
• M2: 756,965 km (0.065 R)
• M3: 2,769,655 km (0.104 R)
• M4: 3,700,004 km (0.1 R)
• M5: 6,686,875 km (0.059 R)
• M6: 7,614,831 km (0.106 R)
• M7: 8,143,809 km (0.115 R)
• M8: 10,792,140 km (0.101 R)
• M9: 14,963,976 km (0.085 R)
• M10: 18,063,344 km (0.116 R)
• M11: 19,732,258 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.6

Radius: 11.7

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.95 AU - 6.27 AU

Year: 7973 Days

Day: 11.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,837,039 km

• M1: 145,559 km (0.08 R)
• M2: 843,732 km (0.088 R)
• M3: 1,320,800 km (0.094 R)
• M4: 1,869,674 km (0.117 R)
• M5: 3,804,423 km (0.112 R)
• M6: 5,379,839 km (0.104 R)
• M7: 6,368,531 km (0.078 R)
• M8: 8,302,383 km (0.105 R)
• M9: 8,738,760 km (0.084 R)
• M10: 10,368,628 km (0.106 R)
• M11: 12,538,097 km (0.07 R)
• M12: 15,142,596 km (0.025 R)
• M13: 15,897,317 km (0.106 R)
• M14: 16,362,118 km (0.113 R)
• M15: 16,836,044 km (0.041 R)
• M16: 19,169,471 km (0.096 R)
• M17: 19,874,077 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 787.9

Radius: 5.1

Gravity: 30.29 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 5.64 AU - 7.8 AU

Year: 12024 Days

Day: 21.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 43,837,039 km

• M1: 63,579 km (0.105 R)
• M2: 347,067 km (0.053 R)
• M3: 627,264 km (0.1 R)
• M4: 971,189 km (0.12 R)
• M5: 2,821,865 km (0.113 R)
• M6: 3,054,789 km (0.096 R)
• M7: 3,376,873 km (0.081 R)
• M8: 4,147,302 km (0.067 R)
• M9: 4,862,679 km (0.118 R)
• M10: 5,336,754 km (0.088 R)
• M11: 6,860,558 km (0.081 R)
• M12: 9,145,516 km (0.071 R)
• M13: 9,347,623 km (0.116 R)
• M14: 11,188,724 km (0.116 R)
• M15: 13,780,058 km (0.09 R)
• M16: 14,383,237 km (0.087 R)
• M17: 17,124,618 km (0.087 R)
• M18: 24,964,893 km (0.111 R)
• M19: 25,559,395 km (0.098 R)
• M20: 28,781,882 km (0.099 R)
• M21: 29,765,788 km (0.052 R)
• M22: 30,210,093 km (0.101 R)
• M23: 31,685,128 km (0.056 R)
• M24: 33,207,287 km (0.11 R)
• M25: 33,805,528 km (0.107 R)
• M26: 48,087,488 km (0.077 R)
• M27: 51,996,330 km (0.094 R)
• M28: 52,802,812 km (0.104 R)
• M29: 53,617,522 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 188.9

Radius: 3.6

Gravity: 14.58 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 6.53 AU - 10.17 AU

Year: 16655 Days

Day: 15.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,837,039 km

• M1: 46,525 km (0.086 R)
• M2: 186,698 km (0.064 R)
• M3: 486,043 km (0.086 R)
• M4: 805,585 km (0.097 R)
• M5: 1,134,999 km (0.09 R)
• M6: 1,548,039 km (0.072 R)
• M7: 1,827,488 km (0.106 R)
• M8: 2,262,967 km (0.113 R)
• M9: 2,702,934 km (0.118 R)
• M10: 2,975,502 km (0.065 R)
• M11: 3,174,766 km (0.116 R)
• M12: 3,575,389 km (0.104 R)
• M13: 4,335,197 km (0.062 R)
• M14: 9,176,633 km (0.1 R)
• M15: 9,790,582 km (0.118 R)
• M16: 11,470,866 km (0.057 R)
• M17: 14,682,582 km (0.091 R)
• M18: 14,937,198 km (0.064 R)
• M19: 15,520,629 km (0.063 R)
• M20: 17,790,478 km (0.109 R)
• M21: 19,959,647 km (0.074 R)
• M22: 24,190,424 km (0.1 R)
• M23: 30,709,301 km (0.066 R)
• M24: 31,440,236 km (0.096 R)
• M25: 42,023,388 km (0.07 R)
• M26: 42,923,818 km (0.097 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: 504 - 16,460 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit