🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.2

Radius: 12

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.43 AU - 0.63 AU

Year: 257 Days

Day: 14.7 Hours

Environment

Temp: -132 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 56,267,059 km

• M1: 149,448 km (0.071 R)
• M2: 530,773 km (0.111 R)
• M3: 977,024 km (0.064 R)
• M4: 1,515,127 km (0.117 R)
• M5: 1,892,712 km (0.117 R)
• M6: 2,516,087 km (0.057 R)
• M7: 3,471,119 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.6

Radius: 9

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.61 AU - 0.65 AU

Year: 333 Days

Day: 10.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,267,059 km

• M1: 111,899 km (0.085 R)
• M2: 444,306 km (0.073 R)
• M3: 742,454 km (0.059 R)
• M4: 1,212,640 km (0.107 R)
• M5: 1,511,387 km (0.046 R)
• M6: 1,904,530 km (0.041 R)
• M7: 2,357,812 km (0.119 R)
• M8: 2,787,756 km (0.057 R)
• M9: 3,121,210 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788

Radius: 12.9

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.62 AU - 0.84 AU

Year: 416 Days

Day: 14.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,267,059 km

• M1: 160,519 km (0.073 R)
• M2: 582,983 km (0.115 R)
• M3: 1,059,153 km (0.109 R)
• M4: 1,593,217 km (0.076 R)
• M5: 2,415,407 km (0.082 R)
• M6: 2,902,797 km (0.113 R)
• M7: 3,349,048 km (0.025 R)
• M8: 3,751,765 km (0.083 R)
• M9: 4,339,685 km (0.1 R)
• M10: 5,003,899 km (0.085 R)
• M11: 5,599,897 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.8

Radius: 9.4

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.65 AU - 1.07 AU

Year: 532 Days

Day: 8.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,267,059 km

• M1: 116,836 km (0.054 R)
• M2: 462,108 km (0.088 R)
• M3: 834,307 km (0.096 R)
• M4: 1,164,171 km (0.104 R)
• M5: 1,482,964 km (0.118 R)
• M6: 1,780,065 km (0.116 R)
• M7: 2,108,432 km (0.118 R)
• M8: 2,558,273 km (0.102 R)
• M9: 3,638,669 km (0.066 R)
• M10: 4,332,803 km (0.096 R)
• M11: 4,837,546 km (0.064 R)
• M12: 5,228,894 km (0.103 R)
• M13: 5,536,318 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.4

Radius: 8

Gravity: 9.16 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.34 AU - 1.44 AU

Year: 1093 Days

Day: 7.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,267,059 km

• M1: 99,483 km (0.102 R)
• M2: 350,807 km (0.094 R)
• M3: 784,042 km (0.072 R)
• M4: 1,050,925 km (0.053 R)
• M5: 1,326,634 km (0.098 R)
• M6: 1,633,459 km (0.099 R)
• M7: 2,615,120 km (0.096 R)
• M8: 2,877,216 km (0.077 R)
• M9: 3,268,414 km (0.062 R)
• M10: 3,850,051 km (0.117 R)
• M11: 4,411,641 km (0.107 R)
• M12: 6,250,349 km (0.088 R)
• M13: 7,387,891 km (0.107 R)
• M14: 8,712,430 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.5

Radius: 11.6

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.88 AU - 3.38 AU

Year: 3693 Days

Day: 11.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,267,059 km

• M1: 207,642 km (0.113 R)
• M2: 616,642 km (0.088 R)
• M3: 1,005,148 km (0.098 R)
• M4: 1,532,929 km (0.102 R)
• M5: 2,390,724 km (0.077 R)
• M6: 2,786,410 km (0.046 R)
• M7: 5,298,607 km (0.048 R)
• M8: 6,136,205 km (0.07 R)
• M9: 8,106,709 km (0.082 R)
• M10: 9,903,379 km (0.09 R)
• M11: 12,376,082 km (0.102 R)
• M12: 18,005,450 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.5

Radius: 13.9

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 5.06 AU - 6.4 AU

Year: 9147 Days

Day: 10.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,267,059 km

• M1: 172,935 km (0.077 R)
• M2: 880,832 km (0.103 R)
• M3: 2,773,245 km (0.039 R)
• M4: 3,415,768 km (0.115 R)
• M5: 3,852,594 km (0.117 R)
• M6: 5,365,328 km (0.06 R)
• M7: 6,083,397 km (0.116 R)
• M8: 7,350,791 km (0.107 R)
• M9: 13,456,029 km (0.114 R)
• M10: 20,050,752 km (0.117 R)
• M11: 22,757,875 km (0.065 R)
• M12: 29,519,250 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 65.9

Radius: 3.1

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 6.5 AU - 7.46 AU

Year: 12297 Days

Day: 18.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,267,059 km

• M1: 431,889 km (0.088 R)
• M2: 671,694 km (0.112 R)
• M3: 1,850,675 km (0.09 R)
• M4: 2,271,644 km (0.114 R)
• M5: 2,585,799 km (0.112 R)
• M6: 6,453,203 km (0.106 R)
• M7: 8,058,538 km (0.104 R)
• M8: 8,164,603 km (0.091 R)
• M9: 8,379,725 km (0.04 R)
• M10: 10,156,199 km (0.034 R)
• M11: 10,321,505 km (0.113 R)
• M12: 11,755,550 km (0.089 R)
• M13: 17,075,550 km (0.09 R)
• M14: 17,427,254 km (0.063 R)
• M15: 24,909,242 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64.2

Radius: 5.6

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 8.02 AU - 8.54 AU

Year: 15888 Days

Day: 21.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,267,059 km

• M1: 69,713 km (0.082 R)
• M2: 2,388,480 km (0.084 R)
• M3: 4,373,943 km (0.089 R)
• M4: 6,586,794 km (0.096 R)
• M5: 7,255,796 km (0.077 R)
• M6: 10,389,273 km (0.037 R)
• M7: 10,835,224 km (0.095 R)
• M8: 11,340,566 km (0.107 R)
• M9: 13,624,925 km (0.049 R)
• M10: 17,165,009 km (0.093 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338.4

Radius: 3

Gravity: 37.6 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 6.91 AU - 11.15 AU

Year: 18095 Days

Day: 16 Hours

Environment

Temp: -229 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,267,059 km

• M1: 41,139 km (0.065 R)
• M2: 198,367 km (0.106 R)
• M3: 1,932,206 km (0.038 R)
• M4: 2,189,365 km (0.087 R)
• M5: 2,574,280 km (0.067 R)
• M6: 2,908,631 km (0.099 R)
• M7: 3,246,124 km (0.089 R)
• M8: 3,555,642 km (0.079 R)
• M9: 6,139,945 km (0.108 R)
• M10: 12,800,342 km (0.105 R)
• M11: 16,276,697 km (0.096 R)
• M12: 21,288,375 km (0.057 R)
• M13: 22,455,388 km (0.114 R)
• M14: 23,569,893 km (0.086 R)
• M15: 32,072,736 km (0.071 R)
• M16: 33,603,571 km (0.105 R)
• M17: 39,677,544 km (0.073 R)
• M18: 42,550,272 km (0.111 R)
• M19: 47,490,143 km (0.084 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 19,314 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit