🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.1

Radius: 8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.63 AU - 0.87 AU

Year: 457 Days

Day: 8.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,980,573 km

• M1: 99,483 km (0.068 R)
• M2: 361,728 km (0.113 R)
• M3: 618,138 km (0.1 R)
• M4: 882,179 km (0.113 R)
• M5: 1,210,097 km (0.062 R)
• M6: 1,657,096 km (0.074 R)
• M7: 1,913,656 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.5

Radius: 8.9

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.6 AU - 0.92 AU

Year: 466 Days

Day: 6.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,980,573 km

• M1: 110,702 km (0.066 R)
• M2: 505,790 km (0.1 R)
• M3: 896,839 km (0.099 R)
• M4: 1,242,111 km (0.048 R)
• M5: 2,738,987 km (0.092 R)
• M6: 3,503,433 km (0.097 R)
• M7: 4,078,936 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.9

Radius: 14.2

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.65 AU - 0.91 AU

Year: 484 Days

Day: 11.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,980,573 km

• M1: 178,919 km (0.104 R)
• M2: 648,357 km (0.054 R)
• M3: 1,194,240 km (0.089 R)
• M4: 2,035,728 km (0.098 R)
• M5: 3,211,268 km (0.098 R)
• M6: 3,817,438 km (0.1 R)
• M7: 4,455,324 km (0.053 R)
• M8: 5,839,702 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.9

Radius: 12.4

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.71 AU - 1.11 AU

Year: 610 Days

Day: 12.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,980,573 km

• M1: 154,235 km (0.034 R)
• M2: 735,573 km (0.12 R)
• M3: 1,255,725 km (0.088 R)
• M4: 1,716,785 km (0.095 R)
• M5: 2,170,366 km (0.119 R)
• M6: 2,823,361 km (0.105 R)
• M7: 3,275,745 km (0.059 R)
• M8: 3,803,526 km (0.116 R)
• M9: 4,447,844 km (0.078 R)
• M10: 5,436,387 km (0.106 R)
• M11: 6,123,041 km (0.037 R)
• M12: 6,566,150 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.8

Radius: 11.9

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.94 AU - 1.18 AU

Year: 767 Days

Day: 9.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,980,573 km

• M1: 148,102 km (0.087 R)
• M2: 607,068 km (0.08 R)
• M3: 1,023,997 km (0.091 R)
• M4: 1,425,518 km (0.096 R)
• M5: 1,908,121 km (0.119 R)
• M6: 2,315,775 km (0.113 R)
• M7: 2,770,553 km (0.112 R)
• M8: 3,222,039 km (0.102 R)
• M9: 3,626,402 km (0.109 R)
• M10: 4,020,892 km (0.069 R)
• M11: 5,398,838 km (0.064 R)
• M12: 6,245,262 km (0.106 R)
• M13: 7,757,996 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.4

Radius: 13.2

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.19 AU - 1.59 AU

Year: 1152 Days

Day: 5.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,980,573 km

• M1: 164,109 km (0.102 R)
• M2: 588,219 km (0.116 R)
• M3: 1,112,559 km (0.063 R)
• M4: 1,545,346 km (0.083 R)
• M5: 2,031,689 km (0.082 R)
• M6: 2,596,421 km (0.108 R)
• M7: 3,572,248 km (0.117 R)
• M8: 4,212,826 km (0.04 R)
• M9: 4,816,453 km (0.12 R)
• M10: 5,316,559 km (0.11 R)
• M11: 5,745,755 km (0.119 R)
• M12: 6,242,420 km (0.12 R)
• M13: 6,957,348 km (0.114 R)
• M14: 7,623,807 km (0.051 R)
• M15: 8,198,113 km (0.118 R)
• M16: 9,228,992 km (0.11 R)
• M17: 9,670,904 km (0.064 R)
• M18: 10,470,355 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.2

Radius: 13

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.2 AU - 4.64 AU

Year: 6532 Days

Day: 6.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 49,980,573 km

• M1: 163,510 km (0.109 R)
• M2: 625,319 km (0.081 R)
• M3: 1,238,970 km (0.112 R)
• M4: 1,967,511 km (0.081 R)
• M5: 2,613,774 km (0.102 R)
• M6: 5,280,805 km (0.105 R)
• M7: 5,721,969 km (0.115 R)
• M8: 8,104,315 km (0.05 R)
• M9: 9,265,943 km (0.04 R)
• M10: 12,295,748 km (0.106 R)
• M11: 14,793,135 km (0.093 R)
• M12: 15,674,566 km (0.063 R)
• M13: 17,473,181 km (0.063 R)
• M14: 17,961,020 km (0.085 R)
• M15: 18,601,747 km (0.085 R)
• M16: 21,635,742 km (0.044 R)
• M17: 23,270,098 km (0.034 R)
• M18: 26,508,443 km (0.098 R)
• M19: 27,808,599 km (0.098 R)
• M20: 28,666,542 km (0.056 R)
• M21: 30,036,111 km (0.057 R)
• M22: 31,448,913 km (0.085 R)
• M23: 33,223,294 km (0.094 R)
• M24: 35,506,456 km (0.083 R)
• M25: 37,314,795 km (0.066 R)
• M26: 38,593,109 km (0.093 R)
• M27: 39,900,445 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 752.6

Radius: 5.2

Gravity: 27.83 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 5.92 AU - 9.82 AU

Year: 15519 Days

Day: 18.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 49,980,573 km

• M1: 64,626 km (0.055 R)
• M2: 356,791 km (0.116 R)
• M3: 946,356 km (0.049 R)
• M4: 1,630,467 km (0.101 R)
• M5: 1,999,974 km (0.112 R)
• M6: 2,808,251 km (0.111 R)
• M7: 3,154,869 km (0.093 R)
• M8: 8,244,937 km (0.113 R)
• M9: 9,981,320 km (0.092 R)
• M10: 10,207,063 km (0.063 R)
• M11: 10,436,247 km (0.119 R)
• M12: 11,024,316 km (0.119 R)
• M13: 12,266,277 km (0.111 R)
• M14: 12,460,306 km (0.116 R)
• M15: 13,736,974 km (0.09 R)
• M16: 15,773,899 km (0.077 R)
• M17: 16,705,295 km (0.117 R)
• M18: 17,346,322 km (0.085 R)
• M19: 22,108,172 km (0.11 R)
• M20: 23,770,503 km (0.099 R)
• M21: 27,013,187 km (0.066 R)
• M22: 45,509,767 km (0.051 R)
• M23: 53,340,467 km (0.113 R)
• M24: 58,298,739 km (0.061 R)
• M25: 61,643,448 km (0.042 R)
• M26: 63,942,767 km (0.12 R)
• M27: 66,100,118 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 222.2

Radius: 3.4

Gravity: 19.22 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 8.29 AU - 9.53 AU

Year: 18695 Days

Day: 18.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,980,573 km

• M1: 42,635 km (0.081 R)
• M2: 154,535 km (0.101 R)
• M3: 333,454 km (0.113 R)
• M4: 758,910 km (0.066 R)
• M5: 1,431,502 km (0.108 R)
• M6: 1,694,046 km (0.093 R)
• M7: 3,848,854 km (0.107 R)
• M8: 4,684,508 km (0.119 R)
• M9: 5,462,117 km (0.094 R)
• M10: 6,209,957 km (0.114 R)
• M11: 6,823,757 km (0.065 R)
• M12: 11,944,044 km (0.118 R)
• M13: 18,993,993 km (0.061 R)
• M14: 19,151,519 km (0.085 R)
• M15: 25,706,749 km (0.077 R)
• M16: 31,255,034 km (0.06 R)
• M17: 34,540,054 km (0.089 R)
• M18: 39,055,516 km (0.06 R)
• M19: 47,912,458 km (0.066 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 346 - 15,077 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit