🌌 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 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.45 AU - 0.63 AU

Year: 256 Days

Day: 46.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.49 AU - 0.63 AU

Year: 271 Days

Day: 29.6 Hours

Environment

Temp: -122 °C

Axial Tilt: 8.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,077,185 km

• M1: 304,432 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.8

Radius: 8.2

Gravity: 12.27 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.65 AU - 0.73 AU

Year: 370 Days

Day: 11.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 43,077,185 km

• M1: 102,026 km (0.072 R)
• M2: 385,963 km (0.107 R)
• M3: 661,073 km (0.092 R)
• M4: 963,111 km (0.092 R)
• M5: 1,479,224 km (0.115 R)
• M6: 1,752,090 km (0.059 R)
• M7: 2,034,082 km (0.081 R)
• M8: 2,319,066 km (0.039 R)
• M9: 2,601,357 km (0.069 R)
• M10: 2,917,308 km (0.036 R)
• M11: 3,374,479 km (0.086 R)
• M12: 3,917,519 km (0.085 R)
• M13: 4,603,874 km (0.115 R)
• M14: 4,915,188 km (0.119 R)
• M15: 5,224,556 km (0.097 R)
• M16: 5,663,027 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.2

Radius: 12

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.86 AU - 0.9 AU

Year: 533 Days

Day: 9.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,077,185 km

• M1: 151,094 km (0.091 R)
• M2: 560,992 km (0.114 R)
• M3: 947,254 km (0.093 R)
• M4: 1,364,482 km (0.102 R)
• M5: 1,760,468 km (0.087 R)
• M6: 2,437,099 km (0.098 R)
• M7: 3,029,806 km (0.099 R)
• M8: 3,797,991 km (0.118 R)
• M9: 5,014,072 km (0.045 R)
• M10: 5,775,375 km (0.113 R)
• M11: 6,415,355 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.3

Radius: 11.5

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.3 AU - 1.72 AU

Year: 1198 Days

Day: 10.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 54 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,077,185 km

• M1: 213,327 km (0.095 R)
• M2: 578,046 km (0.119 R)
• M3: 1,039,256 km (0.055 R)
• M4: 1,784,703 km (0.093 R)
• M5: 2,432,761 km (0.059 R)
• M6: 2,925,536 km (0.101 R)
• M7: 3,378,967 km (0.054 R)
• M8: 4,759,905 km (0.045 R)
• M9: 5,147,663 km (0.037 R)
• M10: 5,683,522 km (0.105 R)
• M11: 7,262,528 km (0.105 R)
• M12: 8,263,188 km (0.085 R)
• M13: 10,248,202 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.6

Radius: 12.3

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.56 AU - 2.5 AU

Year: 1867 Days

Day: 9.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,077,185 km

• M1: 153,039 km (0.091 R)
• M2: 660,923 km (0.062 R)
• M3: 1,074,711 km (0.049 R)
• M4: 2,401,495 km (0.08 R)
• M5: 2,809,448 km (0.116 R)
• M6: 3,535,895 km (0.074 R)
• M7: 4,430,640 km (0.109 R)
• M8: 5,240,114 km (0.115 R)
• M9: 5,708,356 km (0.111 R)
• M10: 6,483,273 km (0.061 R)
• M11: 7,662,104 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.6

Radius: 8.5

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 4.12 AU - 4.42 AU

Year: 5697 Days

Day: 8.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,077,185 km

• M1: 106,514 km (0.082 R)
• M2: 417,079 km (0.054 R)
• M3: 737,817 km (0.11 R)
• M4: 1,270,684 km (0.04 R)
• M5: 2,321,460 km (0.058 R)
• M6: 3,447,034 km (0.089 R)
• M7: 3,846,760 km (0.118 R)
• M8: 4,877,639 km (0.109 R)
• M9: 6,055,423 km (0.085 R)
• M10: 6,610,281 km (0.12 R)
• M11: 8,178,815 km (0.115 R)
• M12: 9,209,694 km (0.112 R)
• M13: 11,035,685 km (0.117 R)
• M14: 11,403,247 km (0.057 R)
• M15: 12,033,802 km (0.116 R)
• M16: 12,776,406 km (0.071 R)
• M17: 15,439,248 km (0.114 R)
• M18: 17,443,860 km (0.088 R)
• M19: 18,853,520 km (0.111 R)
• M20: 19,794,641 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.7

Radius: 8.8

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 4.29 AU - 6.05 AU

Year: 7590 Days

Day: 11.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 43,077,185 km

• M1: 109,506 km (0.074 R)
• M2: 443,109 km (0.041 R)
• M3: 1,219,821 km (0.115 R)
• M4: 1,502,860 km (0.086 R)
• M5: 1,886,878 km (0.104 R)
• M6: 2,489,159 km (0.105 R)
• M7: 2,893,223 km (0.115 R)
• M8: 3,856,932 km (0.057 R)
• M9: 4,853,254 km (0.086 R)
• M10: 5,516,272 km (0.046 R)
• M11: 7,456,407 km (0.109 R)
• M12: 7,793,600 km (0.114 R)
• M13: 8,180,311 km (0.067 R)
• M14: 8,579,887 km (0.066 R)
• M15: 11,256,342 km (0.102 R)
• M16: 12,836,844 km (0.028 R)
• M17: 13,707,952 km (0.082 R)
• M18: 15,326,601 km (0.118 R)
• M19: 19,077,917 km (0.103 R)
• M20: 20,794,852 km (0.11 R)
• M21: 22,302,350 km (0.066 R)
• M22: 23,320,513 km (0.1 R)
• M23: 24,863,765 km (0.054 R)
• M24: 26,129,362 km (0.096 R)
• M25: 27,260,472 km (0.097 R)
• M26: 29,713,578 km (0.091 R)
• M27: 30,658,288 km (0.116 R)
• M28: 33,107,654 km (0.088 R)
• M29: 33,714,274 km (0.068 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 535.9

Radius: 5.6

Gravity: 17.09 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 5.69 AU - 6.43 AU

Year: 9632 Days

Day: 19.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 100.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 43,077,185 km

• M1: 69,713 km (0.071 R)
• M2: 255,962 km (0.11 R)
• M3: 642,224 km (0.069 R)
• M4: 843,134 km (0.12 R)
• M5: 1,277,865 km (0.038 R)
• M6: 1,945,371 km (0.055 R)
• M7: 2,213,001 km (0.073 R)
• M8: 2,410,919 km (0.112 R)
• M9: 2,781,024 km (0.063 R)
• M10: 3,033,695 km (0.1 R)
• M11: 5,191,645 km (0.039 R)
• M12: 5,774,627 km (0.099 R)
• M13: 6,151,764 km (0.1 R)
• M14: 6,328,588 km (0.091 R)
• M15: 8,504,340 km (0.086 R)
• M16: 9,312,916 km (0.044 R)
• M17: 10,171,458 km (0.078 R)
• M18: 10,419,043 km (0.104 R)
• M19: 10,874,868 km (0.073 R)
• M20: 11,771,856 km (0.113 R)
• M21: 12,490,375 km (0.102 R)
• M22: 14,758,129 km (0.116 R)
• M23: 16,122,163 km (0.115 R)
• M24: 17,996,624 km (0.038 R)
• M25: 20,794,553 km (0.108 R)
• M26: 21,274,014 km (0.107 R)
• M27: 21,679,275 km (0.067 R)
• M28: 31,422,135 km (0.119 R)
• M29: 33,016,100 km (0.079 R)
• M30: 34,329,420 km (0.104 R)
• M31: 35,450,058 km (0.065 R)
• M32: 36,595,080 km (0.12 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 14,743 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit