🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.65 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.7

Radius: 13.2

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.23 AU - 1.37 AU

Year: 1042 Days

Day: 7.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,683,062 km

• M1: 164,258 km (0.116 R)
• M2: 738,265 km (0.106 R)
• M3: 1,156,092 km (0.104 R)
• M4: 1,763,011 km (0.073 R)
• M5: 2,374,866 km (0.084 R)
• M6: 3,101,762 km (0.113 R)
• M7: 3,944,597 km (0.112 R)
• M8: 5,427,560 km (0.081 R)
• M9: 7,362,459 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.1

Radius: 9.1

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.17 AU - 1.77 AU

Year: 1253 Days

Day: 13.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,683,062 km

• M1: 117,285 km (0.116 R)
• M2: 921,822 km (0.12 R)
• M3: 1,259,913 km (0.057 R)
• M4: 2,305,602 km (0.077 R)
• M5: 2,766,962 km (0.11 R)
• M6: 3,300,727 km (0.095 R)
• M7: 5,321,346 km (0.099 R)
• M8: 5,803,949 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.4

Radius: 12.8

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.59 AU - 1.83 AU

Year: 1572 Days

Day: 15 Hours

Environment

Temp: -205 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,683,062 km

• M1: 165,006 km (0.092 R)
• M2: 582,684 km (0.088 R)
• M3: 1,444,367 km (0.098 R)
• M4: 1,884,185 km (0.086 R)
• M5: 2,300,815 km (0.085 R)
• M6: 3,084,708 km (0.118 R)
• M7: 4,039,741 km (0.078 R)
• M8: 4,911,747 km (0.093 R)
• M9: 5,608,574 km (0.09 R)
• M10: 6,860,110 km (0.108 R)
• M11: 8,564,628 km (0.09 R)
• M12: 11,156,261 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.9

Radius: 10.7

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.58 AU - 2.14 AU

Year: 1783 Days

Day: 10.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,683,062 km

• M1: 133,591 km (0.1 R)
• M2: 499,806 km (0.081 R)
• M3: 1,065,735 km (0.082 R)
• M4: 1,736,382 km (0.111 R)
• M5: 3,082,763 km (0.077 R)
• M6: 3,872,790 km (0.042 R)
• M7: 5,248,043 km (0.117 R)
• M8: 6,246,309 km (0.071 R)
• M9: 7,623,059 km (0.099 R)
• M10: 8,336,940 km (0.103 R)
• M11: 12,959,963 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.2

Radius: 8.8

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.6 AU - 2.22 AU

Year: 1855 Days

Day: 10.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,683,062 km

• M1: 110,254 km (0.059 R)
• M2: 456,274 km (0.043 R)
• M3: 758,760 km (0.04 R)
• M4: 1,071,869 km (0.092 R)
• M5: 1,515,726 km (0.098 R)
• M6: 1,796,371 km (0.051 R)
• M7: 2,539,573 km (0.078 R)
• M8: 2,981,635 km (0.067 R)
• M9: 3,334,836 km (0.098 R)
• M10: 4,415,381 km (0.096 R)
• M11: 5,179,377 km (0.098 R)
• M12: 6,028,794 km (0.041 R)
• M13: 6,620,304 km (0.1 R)
• M14: 7,069,846 km (0.099 R)
• M15: 8,057,641 km (0.059 R)
• M16: 10,537,375 km (0.056 R)
• M17: 12,826,073 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432

Radius: 12.4

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 3.1 AU - 4 AU

Year: 4702 Days

Day: 13.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 71,683,062 km

• M1: 154,235 km (0.095 R)
• M2: 1,795,025 km (0.103 R)
• M3: 2,851,784 km (0.118 R)
• M4: 4,108,706 km (0.082 R)
• M5: 4,515,163 km (0.073 R)
• M6: 6,448,715 km (0.089 R)
• M7: 7,385,198 km (0.094 R)
• M8: 8,846,021 km (0.081 R)
• M9: 11,386,642 km (0.09 R)
• M10: 15,430,422 km (0.087 R)
• M11: 17,159,175 km (0.078 R)
• M12: 18,890,322 km (0.071 R)
• M13: 19,703,087 km (0.074 R)
• M14: 22,007,044 km (0.07 R)
• M15: 22,836,863 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 167.8

Radius: 4.5

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 7.96 AU - 8.16 AU

Year: 16085 Days

Day: 20.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,683,062 km

• M1: 57,446 km (0.032 R)
• M2: 272,567 km (0.026 R)
• M3: 1,079,648 km (0.075 R)
• M4: 2,329,987 km (0.091 R)
• M5: 2,513,843 km (0.082 R)
• M6: 2,747,066 km (0.086 R)
• M7: 5,770,887 km (0.08 R)
• M8: 6,177,345 km (0.064 R)
• M9: 6,387,530 km (0.095 R)
• M10: 7,710,573 km (0.092 R)
• M11: 13,918,586 km (0.103 R)
• M12: 15,854,682 km (0.098 R)
• M13: 16,717,412 km (0.116 R)
• M14: 17,263,594 km (0.112 R)
• M15: 21,665,063 km (0.118 R)
• M16: 28,556,139 km (0.112 R)
• M17: 30,734,883 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 853.4

Radius: 7.7

Gravity: 14.39 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 7.52 AU - 8.8 AU

Year: 16385 Days

Day: 18.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 71,683,062 km

• M1: 95,743 km (0.085 R)
• M2: 347,217 km (0.11 R)
• M3: 1,036,713 km (0.036 R)
• M4: 1,536,370 km (0.11 R)
• M5: 1,915,002 km (0.066 R)
• M6: 2,228,410 km (0.078 R)
• M7: 2,934,362 km (0.119 R)
• M8: 3,721,845 km (0.103 R)
• M9: 6,404,135 km (0.048 R)
• M10: 7,386,694 km (0.114 R)
• M11: 9,206,253 km (0.034 R)
• M12: 12,870,802 km (0.076 R)
• M13: 16,424,799 km (0.088 R)
• M14: 19,127,135 km (0.094 R)
• M15: 19,394,766 km (0.096 R)
• M16: 22,605,136 km (0.09 R)
• M17: 23,612,827 km (0.079 R)
• M18: 28,173,917 km (0.096 R)
• M19: 32,905,248 km (0.108 R)
• M20: 34,593,012 km (0.08 R)
• M21: 35,659,794 km (0.052 R)
• M22: 41,028,413 km (0.082 R)
• M23: 47,398,889 km (0.063 R)
• M24: 54,398,274 km (0.076 R)
• M25: 55,658,337 km (0.03 R)
• M26: 58,423,653 km (0.052 R)
• M27: 61,472,907 km (0.09 R)
• M28: 63,431,592 km (0.064 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 211 - 10,634 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit