🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.64 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.6

Radius: 9.1

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.25 AU - 1.31 AU

Year: 950 Days

Day: 12.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,156,589 km

• M1: 113,096 km (0.089 R)
• M2: 427,700 km (0.067 R)
• M3: 787,034 km (0.103 R)
• M4: 1,205,908 km (0.109 R)
• M5: 1,539,362 km (0.065 R)
• M6: 1,862,793 km (0.084 R)
• M7: 2,359,308 km (0.113 R)
• M8: 2,751,404 km (0.113 R)
• M9: 3,232,660 km (0.112 R)
• M10: 4,609,709 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.2

Radius: 9.5

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.45 AU - 1.63 AU

Year: 1254 Days

Day: 7.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,156,589 km

• M1: 118,482 km (0.036 R)
• M2: 449,841 km (0.071 R)
• M3: 777,161 km (0.107 R)
• M4: 1,220,270 km (0.041 R)
• M5: 2,010,745 km (0.094 R)
• M6: 2,613,176 km (0.111 R)
• M7: 3,003,177 km (0.032 R)
• M8: 3,714,366 km (0.101 R)
• M9: 4,621,976 km (0.114 R)
• M10: 5,024,095 km (0.087 R)
• M11: 5,752,936 km (0.117 R)
• M12: 6,573,031 km (0.057 R)
• M13: 8,391,393 km (0.095 R)
• M14: 9,766,198 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.3

Radius: 12.2

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.19 AU - 1.91 AU

Year: 1266 Days

Day: 11.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,156,589 km

• M1: 155,432 km (0.043 R)
• M2: 617,390 km (0.104 R)
• M3: 1,173,296 km (0.047 R)
• M4: 1,616,106 km (0.09 R)
• M5: 2,383,543 km (0.108 R)
• M6: 2,904,293 km (0.116 R)
• M7: 3,500,441 km (0.108 R)
• M8: 4,768,133 km (0.112 R)
• M9: 6,504,815 km (0.075 R)
• M10: 7,251,009 km (0.12 R)
• M11: 7,736,155 km (0.065 R)
• M12: 9,896,946 km (0.075 R)
• M13: 10,303,404 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.4

Radius: 8.5

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.4 AU - 1.84 AU

Year: 1353 Days

Day: 7.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,156,589 km

• M1: 106,214 km (0.058 R)
• M2: 910,752 km (0.111 R)
• M3: 1,384,229 km (0.027 R)
• M4: 1,731,147 km (0.043 R)
• M5: 2,074,324 km (0.101 R)
• M6: 3,042,372 km (0.067 R)
• M7: 3,545,619 km (0.104 R)
• M8: 4,352,400 km (0.083 R)
• M9: 5,393,003 km (0.107 R)
• M10: 5,815,617 km (0.116 R)
• M11: 9,304,539 km (0.11 R)
• M12: 9,854,012 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.8

Radius: 10.3

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.79 AU - 3.39 AU

Year: 3563 Days

Day: 12.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,156,589 km

• M1: 128,056 km (0.07 R)
• M2: 635,492 km (0.092 R)
• M3: 1,019,061 km (0.076 R)
• M4: 1,715,738 km (0.079 R)
• M5: 2,268,053 km (0.091 R)
• M6: 3,437,310 km (0.103 R)
• M7: 3,870,995 km (0.098 R)
• M8: 4,296,750 km (0.088 R)
• M9: 4,636,337 km (0.102 R)
• M10: 5,819,208 km (0.092 R)
• M11: 6,732,652 km (0.065 R)
• M12: 7,130,134 km (0.075 R)
• M13: 7,608,099 km (0.078 R)
• M14: 8,347,711 km (0.111 R)
• M15: 9,320,097 km (0.032 R)
• M16: 10,650,022 km (0.074 R)
• M17: 12,462,400 km (0.113 R)
• M18: 15,187,176 km (0.059 R)
• M19: 15,872,484 km (0.06 R)
• M20: 21,717,871 km (0.114 R)
• M21: 22,791,684 km (0.044 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 478.9

Radius: 3.8

Gravity: 33.16 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 4.83 AU - 7.61 AU

Year: 10176 Days

Day: 24.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 60,156,589 km

• M1: 47,572 km (0.114 R)
• M2: 247,435 km (0.028 R)
• M3: 386,112 km (0.096 R)
• M4: 511,326 km (0.075 R)
• M5: 847,322 km (0.057 R)
• M6: 1,021,753 km (0.082 R)
• M7: 1,592,320 km (0.091 R)
• M8: 1,938,489 km (0.072 R)
• M9: 2,207,466 km (0.096 R)
• M10: 2,350,931 km (0.107 R)
• M11: 2,558,572 km (0.103 R)
• M12: 3,465,584 km (0.04 R)
• M13: 3,659,912 km (0.119 R)
• M14: 5,817,712 km (0.055 R)
• M15: 6,268,600 km (0.037 R)
• M16: 7,516,994 km (0.081 R)
• M17: 8,435,824 km (0.064 R)
• M18: 8,832,408 km (0.106 R)
• M19: 9,149,406 km (0.105 R)
• M20: 10,244,313 km (0.107 R)
• M21: 12,690,836 km (0.092 R)
• M22: 13,685,512 km (0.117 R)
• M23: 15,305,508 km (0.102 R)
• M24: 15,894,774 km (0.049 R)
• M25: 21,731,484 km (0.116 R)
• M26: 25,257,656 km (0.05 R)
• M27: 26,919,389 km (0.051 R)
• M28: 27,489,207 km (0.106 R)
• M29: 36,329,992 km (0.117 R)
• M30: 37,848,112 km (0.105 R)
• M31: 41,385,802 km (0.048 R)
• M32: 42,527,084 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 991.9

Radius: 6.7

Gravity: 22.1 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 6.72 AU - 6.92 AU

Year: 11684 Days

Day: 19.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 121.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,156,589 km

• M1: 83,326 km (0.11 R)
• M2: 343,477 km (0.118 R)
• M3: 578,495 km (0.119 R)
• M4: 853,007 km (0.119 R)
• M5: 1,332,618 km (0.104 R)
• M6: 1,689,110 km (0.066 R)
• M7: 2,382,496 km (0.081 R)
• M8: 3,302,223 km (0.079 R)
• M9: 4,408,051 km (0.115 R)
• M10: 6,084,445 km (0.034 R)
• M11: 7,458,052 km (0.103 R)
• M12: 7,958,756 km (0.036 R)
• M13: 8,875,791 km (0.12 R)
• M14: 9,701,272 km (0.065 R)
• M15: 10,520,470 km (0.077 R)
• M16: 11,563,467 km (0.108 R)
• M17: 13,853,361 km (0.086 R)
• M18: 17,590,765 km (0.066 R)
• M19: 19,903,847 km (0.08 R)
• M20: 20,600,225 km (0.042 R)
• M21: 21,584,280 km (0.029 R)
• M22: 22,319,254 km (0.085 R)
• M23: 23,356,865 km (0.083 R)
• M24: 23,839,169 km (0.076 R)
• M25: 27,189,413 km (0.075 R)
• M26: 29,927,353 km (0.119 R)
• M27: 30,610,716 km (0.071 R)
• M28: 35,816,273 km (0.084 R)
• M29: 39,505,506 km (0.119 R)
• M30: 41,582,374 km (0.034 R)
• M31: 45,952,427 km (0.107 R)
• M32: 54,741,152 km (0.12 R)
• M33: 57,844,111 km (0.083 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 14,826 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit