🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.56 AU - 0.66 AU

Year: 313 Days

Day: 39.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 10.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.7

Radius: 14.9

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.74 AU - 0.82 AU

Year: 452 Days

Day: 14.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 17,758,353 km

• M1: 185,352 km (0.115 R)
• M2: 713,133 km (0.071 R)
• M3: 1,438,533 km (0.057 R)
• M4: 2,374,866 km (0.071 R)
• M5: 2,885,593 km (0.081 R)
• M6: 3,402,454 km (0.118 R)
• M7: 4,381,422 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.5

Radius: 12

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.77 AU - 0.91 AU

Year: 505 Days

Day: 8.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 17,758,353 km

• M1: 149,448 km (0.101 R)
• M2: 547,229 km (0.116 R)
• M3: 1,070,522 km (0.101 R)
• M4: 1,495,081 km (0.045 R)
• M5: 2,097,811 km (0.118 R)
• M6: 2,725,374 km (0.082 R)
• M7: 3,283,075 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.8

Radius: 13

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.28 AU - 1.38 AU

Year: 1006 Days

Day: 6.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 17,758,353 km

• M1: 161,715 km (0.089 R)
• M2: 596,746 km (0.116 R)
• M3: 1,209,200 km (0.091 R)
• M4: 2,076,718 km (0.057 R)
• M5: 2,880,058 km (0.059 R)
• M6: 3,488,922 km (0.111 R)
• M7: 4,374,242 km (0.098 R)
• M8: 5,162,323 km (0.031 R)
• M9: 5,846,135 km (0.107 R)
• M10: 6,755,241 km (0.101 R)
• M11: 7,169,179 km (0.044 R)
• M12: 8,183,752 km (0.115 R)
• M13: 8,825,526 km (0.119 R)
• M14: 9,591,318 km (0.108 R)
• M15: 10,021,711 km (0.055 R)
• M16: 11,121,255 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.2

Radius: 10.6

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.89 AU - 2.95 AU

Year: 2470 Days

Day: 14.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 17,758,353 km

• M1: 131,796 km (0.11 R)
• M2: 505,342 km (0.096 R)
• M3: 1,562,101 km (0.117 R)
• M4: 1,994,289 km (0.102 R)
• M5: 2,564,556 km (0.111 R)
• M6: 3,418,461 km (0.033 R)
• M7: 4,583,380 km (0.114 R)
• M8: 5,136,293 km (0.078 R)
• M9: 5,968,805 km (0.072 R)
• M10: 6,403,686 km (0.074 R)
• M11: 7,125,496 km (0.088 R)
• M12: 7,678,260 km (0.077 R)
• M13: 8,062,428 km (0.057 R)
• M14: 8,869,508 km (0.107 R)
• M15: 9,473,136 km (0.071 R)
• M16: 10,683,532 km (0.093 R)
• M17: 12,036,794 km (0.084 R)
• M18: 13,640,035 km (0.077 R)
• M19: 15,889,837 km (0.12 R)
• M20: 16,462,498 km (0.034 R)
• M21: 16,887,505 km (0.12 R)
• M22: 17,319,843 km (0.083 R)
• M23: 19,240,530 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.4

Radius: 11.5

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.79 AU - 3.85 AU

Year: 3968 Days

Day: 12.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 17,758,353 km

• M1: 143,016 km (0.052 R)
• M2: 506,389 km (0.115 R)
• M3: 1,461,272 km (0.053 R)
• M4: 1,849,927 km (0.03 R)
• M5: 2,381,897 km (0.057 R)
• M6: 2,859,115 km (0.103 R)
• M7: 4,248,131 km (0.084 R)
• M8: 4,639,329 km (0.101 R)
• M9: 6,016,378 km (0.068 R)
• M10: 6,571,236 km (0.094 R)
• M11: 7,223,932 km (0.11 R)
• M12: 8,022,335 km (0.106 R)
• M13: 9,290,925 km (0.09 R)
• M14: 10,194,496 km (0.1 R)
• M15: 12,222,296 km (0.092 R)
• M16: 13,947,757 km (0.038 R)
• M17: 15,238,039 km (0.058 R)
• M18: 19,901,902 km (0.098 R)
• M19: 21,334,302 km (0.095 R)
• M20: 22,556,666 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.8

Radius: 14.8

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.65 AU - 6.83 AU

Year: 9021 Days

Day: 9.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 17,758,353 km

• M1: 186,549 km (0.084 R)
• M2: 653,892 km (0.069 R)
• M3: 1,404,126 km (0.098 R)
• M4: 2,394,015 km (0.099 R)
• M5: 4,352,251 km (0.086 R)
• M6: 6,058,415 km (0.035 R)
• M7: 8,848,864 km (0.057 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: 345 - 19,109 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit