🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.9

Radius: 12.4

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.54 AU - 0.8 AU

Year: 385 Days

Day: 8.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 145.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,523,780 km

• M1: 154,235 km (0.091 R)
• M2: 618,138 km (0.11 R)
• M3: 1,031,777 km (0.119 R)
• M4: 1,518,269 km (0.048 R)
• M5: 1,989,652 km (0.118 R)
• M6: 3,631,937 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.8

Radius: 11

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.65 AU - 1.05 AU

Year: 551 Days

Day: 11.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,523,780 km

• M1: 136,882 km (0.097 R)
• M2: 491,728 km (0.112 R)
• M3: 972,237 km (0.106 R)
• M4: 1,688,212 km (0.111 R)
• M5: 2,124,739 km (0.037 R)
• M6: 2,627,238 km (0.078 R)
• M7: 4,052,756 km (0.091 R)
• M8: 4,442,907 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.1

Radius: 8.5

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.74 AU - 1.06 AU

Year: 600 Days

Day: 13.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 43,523,780 km

• M1: 105,766 km (0.117 R)
• M2: 370,853 km (0.034 R)
• M3: 665,561 km (0.084 R)
• M4: 1,003,353 km (0.101 R)
• M5: 1,322,744 km (0.111 R)
• M6: 1,679,535 km (0.054 R)
• M7: 1,986,510 km (0.111 R)
• M8: 2,340,459 km (0.117 R)
• M9: 2,747,066 km (0.057 R)
• M10: 3,176,561 km (0.077 R)
• M11: 3,495,653 km (0.109 R)
• M12: 4,433,183 km (0.088 R)
• M13: 4,817,051 km (0.099 R)
• M14: 5,273,175 km (0.054 R)
• M15: 5,901,636 km (0.066 R)
• M16: 6,501,523 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.1

Radius: 10.9

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.9 AU - 1.04 AU

Year: 672 Days

Day: 9.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 51.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,523,780 km

• M1: 136,134 km (0.078 R)
• M2: 500,704 km (0.11 R)
• M3: 847,622 km (0.106 R)
• M4: 1,290,431 km (0.094 R)
• M5: 1,685,519 km (0.117 R)
• M6: 2,067,143 km (0.102 R)
• M7: 2,453,704 km (0.063 R)
• M8: 2,888,735 km (0.055 R)
• M9: 3,521,833 km (0.056 R)
• M10: 5,403,026 km (0.026 R)
• M11: 6,026,251 km (0.08 R)
• M12: 6,488,508 km (0.029 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96

Radius: 10.8

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.87 AU - 1.37 AU

Year: 833 Days

Day: 6.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,523,780 km

• M1: 134,339 km (0.072 R)
• M2: 569,070 km (0.097 R)
• M3: 1,002,605 km (0.053 R)
• M4: 1,467,256 km (0.081 R)
• M5: 1,996,982 km (0.112 R)
• M6: 2,506,213 km (0.088 R)
• M7: 3,111,037 km (0.071 R)
• M8: 3,555,193 km (0.118 R)
• M9: 3,906,748 km (0.047 R)
• M10: 4,585,324 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.6

Radius: 12.2

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.31 AU - 1.45 AU

Year: 1140 Days

Day: 14.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,523,780 km

• M1: 151,692 km (0.082 R)
• M2: 569,968 km (0.086 R)
• M3: 1,082,191 km (0.117 R)
• M4: 1,640,939 km (0.119 R)
• M5: 2,155,107 km (0.078 R)
• M6: 2,763,073 km (0.048 R)
• M7: 3,206,481 km (0.109 R)
• M8: 3,728,577 km (0.072 R)
• M9: 5,623,982 km (0.083 R)
• M10: 6,073,823 km (0.076 R)
• M11: 6,478,485 km (0.119 R)
• M12: 7,468,225 km (0.118 R)
• M13: 8,173,280 km (0.093 R)
• M14: 9,991,343 km (0.12 R)
• M15: 10,397,800 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.9

Radius: 9.9

Gravity: 9.27 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.75 AU - 2.87 AU

Year: 3311 Days

Day: 12.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 178.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,523,780 km

• M1: 123,568 km (0.096 R)
• M2: 452,833 km (0.087 R)
• M3: 814,112 km (0.075 R)
• M4: 1,171,202 km (0.111 R)
• M5: 1,890,319 km (0.101 R)
• M6: 3,609,797 km (0.101 R)
• M7: 4,504,990 km (0.12 R)
• M8: 5,249,090 km (0.119 R)
• M9: 6,072,926 km (0.113 R)
• M10: 6,576,622 km (0.097 R)
• M11: 7,012,251 km (0.086 R)
• M12: 9,722,366 km (0.113 R)
• M13: 11,709,923 km (0.11 R)
• M14: 12,727,787 km (0.058 R)
• M15: 14,106,930 km (0.119 R)
• M16: 14,991,502 km (0.097 R)
• M17: 16,358,976 km (0.091 R)
• M18: 17,044,134 km (0.098 R)
• M19: 20,497,003 km (0.088 R)
• M20: 21,699,022 km (0.111 R)
• M21: 23,089,085 km (0.066 R)
• M22: 25,058,691 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.9

Radius: 13.9

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.29 AU - 5.15 AU

Year: 6094 Days

Day: 7.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,523,780 km

• M1: 178,470 km (0.038 R)
• M2: 990,338 km (0.059 R)
• M3: 1,955,095 km (0.096 R)
• M4: 2,647,882 km (0.119 R)
• M5: 5,320,747 km (0.07 R)
• M6: 7,458,651 km (0.086 R)
• M7: 8,487,585 km (0.112 R)
• M8: 9,116,793 km (0.088 R)
• M9: 10,602,300 km (0.108 R)
• M10: 11,054,983 km (0.059 R)
• M11: 13,887,619 km (0.055 R)
• M12: 15,043,711 km (0.08 R)
• M13: 16,144,153 km (0.109 R)
• M14: 20,455,714 km (0.105 R)
• M15: 22,838,209 km (0.057 R)
• M16: 24,525,973 km (0.091 R)
• M17: 26,875,856 km (0.105 R)
• M18: 30,358,644 km (0.093 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.6

Radius: 11.7

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 4.45 AU - 5.29 AU

Year: 7554 Days

Day: 14.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 43,523,780 km

• M1: 145,559 km (0.063 R)
• M2: 839,693 km (0.098 R)
• M3: 1,412,952 km (0.097 R)
• M4: 2,798,677 km (0.073 R)
• M5: 3,815,494 km (0.094 R)
• M6: 4,735,969 km (0.081 R)
• M7: 5,567,734 km (0.084 R)
• M8: 6,422,536 km (0.069 R)
• M9: 7,969,228 km (0.111 R)
• M10: 8,521,843 km (0.045 R)
• M11: 9,943,172 km (0.104 R)
• M12: 10,433,853 km (0.042 R)
• M13: 10,889,079 km (0.092 R)
• M14: 11,516,792 km (0.069 R)
• M15: 12,279,592 km (0.12 R)
• M16: 13,250,631 km (0.077 R)
• M17: 14,833,826 km (0.08 R)
• M18: 15,671,125 km (0.088 R)
• M19: 16,607,757 km (0.113 R)
• M20: 17,866,324 km (0.104 R)
• M21: 19,949,175 km (0.11 R)
• M22: 20,969,134 km (0.085 R)
• M23: 22,188,955 km (0.092 R)
• M24: 23,113,170 km (0.083 R)
• M25: 31,979,537 km (0.067 R)
• M26: 32,942,050 km (0.105 R)
• M27: 35,375,857 km (0.1 R)
• M28: 36,985,680 km (0.085 R)
• M29: 42,619,237 km (0.076 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 18,121 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit