🌌 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: 97.8

Radius: 12.7

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.52 AU - 0.7 AU

Year: 323 Days

Day: 5.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 24,898,218 km

• M1: 157,975 km (0.104 R)
• M2: 576,550 km (0.108 R)
• M3: 996,771 km (0.119 R)
• M4: 1,406,070 km (0.09 R)
• M5: 2,044,554 km (0.089 R)
• M6: 2,470,758 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.1

Radius: 9.4

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.63 AU - 2.57 AU

Year: 2064 Days

Day: 9.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,898,218 km

• M1: 117,135 km (0.084 R)
• M2: 442,660 km (0.077 R)
• M3: 794,365 km (0.069 R)
• M4: 1,451,399 km (0.12 R)
• M5: 1,753,885 km (0.083 R)
• M6: 3,350,992 km (0.039 R)
• M7: 3,690,579 km (0.092 R)
• M8: 4,034,355 km (0.082 R)
• M9: 5,241,311 km (0.072 R)
• M10: 6,621,202 km (0.074 R)
• M11: 6,940,144 km (0.116 R)
• M12: 7,325,209 km (0.074 R)
• M13: 8,692,085 km (0.062 R)
• M14: 10,256,729 km (0.099 R)
• M15: 10,976,445 km (0.089 R)
• M16: 12,964,151 km (0.045 R)
• M17: 13,464,706 km (0.111 R)
• M18: 13,805,490 km (0.118 R)
• M19: 14,151,959 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.4

Radius: 12.8

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.07 AU - 2.23 AU

Year: 2138 Days

Day: 8.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 24,898,218 km

• M1: 159,621 km (0.075 R)
• M2: 692,189 km (0.106 R)
• M3: 1,178,083 km (0.064 R)
• M4: 1,947,315 km (0.115 R)
• M5: 3,270,808 km (0.042 R)
• M6: 4,328,764 km (0.113 R)
• M7: 5,209,596 km (0.064 R)
• M8: 8,697,321 km (0.103 R)
• M9: 14,042,453 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.5

Radius: 13.6

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 3.53 AU - 4.45 AU

Year: 5406 Days

Day: 12 Hours

Environment

Temp: -214 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 24,898,218 km

• M1: 183,407 km (0.084 R)
• M2: 1,359,994 km (0.055 R)
• M3: 1,818,213 km (0.054 R)
• M4: 2,365,591 km (0.116 R)
• M5: 3,819,982 km (0.049 R)
• M6: 5,036,362 km (0.093 R)
• M7: 6,040,463 km (0.028 R)
• M8: 8,594,697 km (0.042 R)
• M9: 9,736,877 km (0.091 R)
• M10: 11,567,207 km (0.115 R)
• M11: 12,859,134 km (0.046 R)
• M12: 13,310,471 km (0.081 R)
• M13: 15,390,330 km (0.095 R)
• M14: 18,112,263 km (0.042 R)
• M15: 22,054,616 km (0.109 R)
• M16: 23,215,196 km (0.08 R)
• M17: 27,516,284 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466

Radius: 9.8

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.8 AU - 4.26 AU

Year: 5487 Days

Day: 13.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 24,898,218 km

• M1: 121,922 km (0.066 R)
• M2: 525,537 km (0.059 R)
• M3: 1,026,541 km (0.078 R)
• M4: 1,348,924 km (0.101 R)
• M5: 1,702,424 km (0.062 R)
• M6: 2,421,690 km (0.087 R)
• M7: 2,807,054 km (0.112 R)
• M8: 3,252,707 km (0.093 R)
• M9: 4,146,554 km (0.078 R)
• M10: 5,062,542 km (0.092 R)
• M11: 5,442,371 km (0.11 R)
• M12: 6,891,974 km (0.079 R)
• M13: 8,283,832 km (0.026 R)
• M14: 11,943,146 km (0.11 R)
• M15: 13,783,050 km (0.084 R)
• M16: 15,128,533 km (0.099 R)
• M17: 16,856,239 km (0.09 R)
• M18: 17,582,836 km (0.114 R)
• M19: 17,953,839 km (0.077 R)
• M20: 19,098,562 km (0.075 R)
• M21: 20,291,156 km (0.114 R)
• M22: 24,779,840 km (0.046 R)
• M23: 26,519,663 km (0.106 R)
• M24: 27,419,644 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.3

Radius: 14.2

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 4.07 AU - 5.15 AU

Year: 6713 Days

Day: 10.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 24,898,218 km

• M1: 176,675 km (0.101 R)
• M2: 657,333 km (0.073 R)
• M3: 1,576,612 km (0.11 R)
• M4: 3,396,021 km (0.12 R)
• M5: 4,386,210 km (0.106 R)
• M6: 5,330,771 km (0.115 R)
• M7: 6,786,507 km (0.058 R)
• M8: 8,493,569 km (0.119 R)
• M9: 9,428,855 km (0.087 R)
• M10: 11,719,198 km (0.082 R)
• M11: 13,156,684 km (0.113 R)
• M12: 13,773,177 km (0.104 R)
• M13: 18,584,244 km (0.07 R)
• M14: 22,085,732 km (0.1 R)
• M15: 22,552,328 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 798.5

Radius: 4.6

Gravity: 37.74 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 6.36 AU - 8.12 AU

Year: 13213 Days

Day: 16.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 24,898,218 km

• M1: 57,894 km (0.11 R)
• M2: 209,886 km (0.094 R)
• M3: 677,379 km (0.107 R)
• M4: 834,756 km (0.037 R)
• M5: 1,040,004 km (0.111 R)
• M6: 2,008,651 km (0.077 R)
• M7: 2,257,881 km (0.1 R)
• M8: 4,715,774 km (0.118 R)
• M9: 5,333,164 km (0.088 R)
• M10: 6,895,115 km (0.034 R)
• M11: 7,196,854 km (0.108 R)
• M12: 10,153,806 km (0.087 R)
• M13: 10,886,686 km (0.12 R)
• M14: 11,354,927 km (0.063 R)
• M15: 12,457,463 km (0.071 R)
• M16: 13,967,654 km (0.07 R)
• M17: 16,341,323 km (0.06 R)
• M18: 21,869,114 km (0.07 R)
• M19: 22,519,715 km (0.104 R)
• M20: 23,278,925 km (0.075 R)
• M21: 26,174,391 km (0.106 R)
• M22: 29,638,031 km (0.083 R)
• M23: 29,977,469 km (0.084 R)
• M24: 30,205,306 km (0.069 R)
• M25: 32,188,675 km (0.072 R)
• M26: 40,851,289 km (0.076 R)
• M27: 41,271,809 km (0.11 R)
• M28: 41,553,801 km (0.113 R)
• M29: 45,187,682 km (0.081 R)
• M30: 48,086,889 km (0.056 R)
• M31: 54,930,992 km (0.1 R)
• M32: 55,272,075 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 48.3

Radius: 7.1

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 6.96 AU - 8.16 AU

Year: 14099 Days

Day: 19.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,898,218 km

• M1: 302,038 km (0.084 R)
• M2: 674,836 km (0.037 R)
• M3: 1,504,057 km (0.093 R)
• M4: 7,923,750 km (0.097 R)
• M5: 8,525,433 km (0.074 R)
• M6: 14,532,236 km (0.091 R)
• M7: 16,995,515 km (0.114 R)
• M8: 18,054,369 km (0.092 R)
• M9: 20,892,988 km (0.087 R)
• M10: 23,654,266 km (0.069 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 391 - 20,141 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit