🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.8

Radius: 12.8

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.51 AU - 0.67 AU

Year: 302 Days

Day: 14.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 61.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,907,826 km

• M1: 159,172 km (0.087 R)
• M2: 628,760 km (0.114 R)
• M3: 1,081,293 km (0.119 R)
• M4: 1,602,642 km (0.09 R)
• M5: 2,509,504 km (0.097 R)
• M6: 3,309,404 km (0.069 R)
• M7: 4,003,389 km (0.107 R)
• M8: 4,527,430 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.6

Radius: 11.8

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.17 AU - 1.25 AU

Year: 888 Days

Day: 10.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,907,826 km

• M1: 146,756 km (0.075 R)
• M2: 585,825 km (0.095 R)
• M3: 1,074,412 km (0.107 R)
• M4: 1,776,924 km (0.045 R)
• M5: 2,378,457 km (0.089 R)
• M6: 2,890,081 km (0.036 R)
• M7: 3,271,257 km (0.111 R)
• M8: 3,850,799 km (0.064 R)
• M9: 5,267,939 km (0.082 R)
• M10: 5,896,998 km (0.09 R)
• M11: 6,636,012 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.1

Radius: 11.9

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.88 AU - 1.88 AU

Year: 1719 Days

Day: 6 Hours

Environment

Temp: -201 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,907,826 km

• M1: 149,448 km (0.095 R)
• M2: 943,963 km (0.065 R)
• M3: 1,353,412 km (0.102 R)
• M4: 1,872,517 km (0.086 R)
• M5: 2,415,557 km (0.117 R)
• M6: 3,156,515 km (0.105 R)
• M7: 3,537,690 km (0.099 R)
• M8: 3,912,732 km (0.107 R)
• M9: 4,807,328 km (0.043 R)
• M10: 5,223,958 km (0.118 R)
• M11: 6,755,092 km (0.095 R)
• M12: 7,682,898 km (0.034 R)
• M13: 11,280,876 km (0.059 R)
• M14: 11,744,181 km (0.113 R)
• M15: 12,422,158 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.6

Radius: 8.4

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.96 AU - 4.02 AU

Year: 4348 Days

Day: 8.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,907,826 km

• M1: 110,254 km (0.036 R)
• M2: 463,305 km (0.072 R)
• M3: 1,376,450 km (0.053 R)
• M4: 1,749,248 km (0.118 R)
• M5: 2,202,829 km (0.116 R)
• M6: 3,789,015 km (0.084 R)
• M7: 6,586,944 km (0.084 R)
• M8: 10,956,997 km (0.041 R)
• M9: 12,825,474 km (0.095 R)
• M10: 13,410,252 km (0.098 R)
• M11: 14,320,555 km (0.118 R)
• M12: 19,372,176 km (0.04 R)
• M13: 21,810,921 km (0.095 R)
• M14: 22,086,330 km (0.106 R)
• M15: 22,573,720 km (0.047 R)
• M16: 23,860,112 km (0.109 R)
• M17: 24,968,932 km (0.115 R)
• M18: 25,345,918 km (0.033 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 276.9

Radius: 4.8

Gravity: 12.02 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.85 AU - 6.87 AU

Year: 9460 Days

Day: 19.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 61,907,826 km

• M1: 61,784 km (0.089 R)
• M2: 233,223 km (0.118 R)
• M3: 496,515 km (0.086 R)
• M4: 816,206 km (0.118 R)
• M5: 1,115,252 km (0.03 R)
• M6: 1,423,424 km (0.093 R)
• M7: 1,703,920 km (0.034 R)
• M8: 1,990,100 km (0.103 R)
• M9: 2,341,356 km (0.118 R)
• M10: 2,621,852 km (0.114 R)
• M11: 3,125,249 km (0.075 R)
• M12: 3,759,843 km (0.1 R)
• M13: 4,398,477 km (0.099 R)
• M14: 4,825,878 km (0.119 R)
• M15: 5,428,159 km (0.061 R)
• M16: 5,670,358 km (0.074 R)
• M17: 6,176,298 km (0.061 R)
• M18: 6,340,407 km (0.107 R)
• M19: 6,850,236 km (0.104 R)
• M20: 8,996,966 km (0.103 R)
• M21: 10,922,141 km (0.094 R)
• M22: 11,803,870 km (0.112 R)
• M23: 14,849,234 km (0.041 R)
• M24: 21,443,808 km (0.097 R)
• M25: 22,977,934 km (0.081 R)
• M26: 24,583,717 km (0.096 R)
• M27: 24,913,730 km (0.106 R)
• M28: 26,781,160 km (0.064 R)
• M29: 29,382,817 km (0.102 R)
• M30: 33,040,186 km (0.086 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 470.7

Radius: 4.6

Gravity: 22.24 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.16 AU - 8.18 AU

Year: 11487 Days

Day: 21.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 61,907,826 km

• M1: 57,146 km (0.045 R)
• M2: 301,290 km (0.097 R)
• M3: 524,191 km (0.082 R)
• M4: 1,210,845 km (0.111 R)
• M5: 1,451,099 km (0.114 R)
• M6: 1,604,288 km (0.115 R)
• M7: 2,660,449 km (0.119 R)
• M8: 3,022,775 km (0.054 R)
• M9: 3,465,734 km (0.104 R)
• M10: 3,614,285 km (0.09 R)
• M11: 4,508,880 km (0.096 R)
• M12: 4,898,881 km (0.055 R)
• M13: 5,884,133 km (0.037 R)
• M14: 7,641,010 km (0.109 R)
• M15: 8,282,187 km (0.026 R)
• M16: 8,866,367 km (0.059 R)
• M17: 11,533,697 km (0.033 R)
• M18: 11,865,654 km (0.114 R)
• M19: 12,549,017 km (0.106 R)
• M20: 14,820,661 km (0.079 R)
• M21: 15,345,600 km (0.087 R)
• M22: 16,363,015 km (0.093 R)
• M23: 16,923,558 km (0.099 R)
• M24: 17,137,034 km (0.079 R)
• M25: 17,352,455 km (0.081 R)
• M26: 17,569,522 km (0.106 R)
• M27: 19,605,549 km (0.098 R)
• M28: 24,139,412 km (0.113 R)
• M29: 28,313,491 km (0.079 R)
• M30: 31,527,003 km (0.076 R)
• M31: 32,175,809 km (0.071 R)
• M32: 33,612,098 km (0.055 R)
• M33: 33,836,794 km (0.113 R)
• M34: 34,175,783 km (0.075 R)
• M35: 36,730,765 km (0.082 R)
• M36: 39,534,977 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 665.5

Radius: 7.4

Gravity: 12.15 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 7.69 AU - 8.17 AU

Year: 14892 Days

Day: 19.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 61,907,826 km

• M1: 127,308 km (0.061 R)
• M2: 616,792 km (0.068 R)
• M3: 1,507,947 km (0.11 R)
• M4: 2,233,646 km (0.047 R)
• M5: 2,500,229 km (0.031 R)
• M6: 3,098,022 km (0.056 R)
• M7: 4,803,887 km (0.113 R)
• M8: 5,075,706 km (0.101 R)
• M9: 5,991,993 km (0.097 R)
• M10: 6,509,901 km (0.093 R)
• M11: 6,885,691 km (0.116 R)
• M12: 8,486,388 km (0.117 R)
• M13: 14,541,212 km (0.045 R)
• M14: 22,030,082 km (0.08 R)
• M15: 24,238,445 km (0.042 R)
• M16: 26,907,571 km (0.115 R)
• M17: 28,093,583 km (0.046 R)
• M18: 29,994,523 km (0.113 R)
• M19: 33,678,969 km (0.093 R)
• M20: 46,521,198 km (0.056 R)
• M21: 56,684,279 km (0.095 R)
• M22: 59,167,603 km (0.092 R)
• M23: 61,907,788 km (0.103 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: 464 - 19,191 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit