🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.53 AU - 0.59 AU

Year: 275 Days

Day: 47.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 47.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.7

Radius: 9.5

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.99 AU - 1.01 AU

Year: 656 Days

Day: 8.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,521,470 km

• M1: 119,080 km (0.088 R)
• M2: 456,722 km (0.102 R)
• M3: 801,994 km (0.084 R)
• M4: 1,125,724 km (0.092 R)
• M5: 1,445,714 km (0.116 R)
• M6: 1,888,972 km (0.038 R)
• M7: 2,257,133 km (0.117 R)
• M8: 2,564,556 km (0.102 R)
• M9: 2,953,361 km (0.1 R)
• M10: 3,994,114 km (0.071 R)
• M11: 4,504,541 km (0.108 R)
• M12: 5,539,160 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.8

Radius: 10.6

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.88 AU - 1.22 AU

Year: 706 Days

Day: 7.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,521,470 km

• M1: 132,394 km (0.04 R)
• M2: 500,854 km (0.102 R)
• M3: 867,368 km (0.118 R)
• M4: 1,913,058 km (0.096 R)
• M5: 3,084,409 km (0.064 R)
• M6: 4,083,872 km (0.096 R)
• M7: 5,220,666 km (0.093 R)
• M8: 6,499,429 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.3

Radius: 8.3

Gravity: 13.23 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.36 AU - 1.4 AU

Year: 1063 Days

Day: 5.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,521,470 km

• M1: 105,466 km (0.113 R)
• M2: 377,585 km (0.097 R)
• M3: 669,002 km (0.031 R)
• M4: 1,042,398 km (0.078 R)
• M5: 1,368,372 km (0.052 R)
• M6: 2,230,205 km (0.11 R)
• M7: 2,739,586 km (0.097 R)
• M8: 3,008,413 km (0.082 R)
• M9: 3,429,830 km (0.051 R)
• M10: 3,726,782 km (0.094 R)
• M11: 4,075,196 km (0.108 R)
• M12: 4,666,406 km (0.094 R)
• M13: 5,952,798 km (0.114 R)
• M14: 6,523,664 km (0.095 R)
• M15: 7,695,165 km (0.087 R)
• M16: 8,289,218 km (0.088 R)
• M17: 8,942,662 km (0.109 R)
• M18: 11,693,168 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.1

Radius: 13.7

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.78 AU - 2.24 AU

Year: 1869 Days

Day: 15 Hours

Environment

Temp: -198 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,521,470 km

• M1: 170,392 km (0.088 R)
• M2: 642,822 km (0.1 R)
• M3: 1,320,351 km (0.098 R)
• M4: 2,024,807 km (0.088 R)
• M5: 2,478,388 km (0.063 R)
• M6: 3,061,221 km (0.058 R)
• M7: 3,841,374 km (0.075 R)
• M8: 4,269,673 km (0.11 R)
• M9: 6,114,514 km (0.107 R)
• M10: 7,077,475 km (0.085 R)
• M11: 7,524,175 km (0.12 R)
• M12: 8,630,002 km (0.047 R)
• M13: 9,807,188 km (0.094 R)
• M14: 10,328,387 km (0.119 R)
• M15: 10,758,480 km (0.074 R)
• M16: 12,319,684 km (0.039 R)
• M17: 14,333,720 km (0.074 R)
• M18: 15,051,491 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.8

Radius: 11.9

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.32 AU - 2.36 AU

Year: 2348 Days

Day: 9.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 25,521,470 km

• M1: 147,952 km (0.119 R)
• M2: 562,039 km (0.051 R)
• M3: 1,011,132 km (0.105 R)
• M4: 1,726,359 km (0.049 R)
• M5: 2,251,448 km (0.055 R)
• M6: 2,994,949 km (0.072 R)
• M7: 3,371,038 km (0.063 R)
• M8: 5,727,803 km (0.074 R)
• M9: 6,506,011 km (0.07 R)
• M10: 7,819,630 km (0.12 R)
• M11: 9,267,289 km (0.101 R)
• M12: 11,329,346 km (0.077 R)
• M13: 12,908,202 km (0.116 R)
• M14: 13,820,300 km (0.038 R)
• M15: 15,268,557 km (0.108 R)
• M16: 16,922,362 km (0.097 R)
• M17: 17,572,364 km (0.083 R)
• M18: 18,182,724 km (0.063 R)
• M19: 18,578,410 km (0.073 R)
• M20: 20,279,487 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.6

Radius: 10.4

Gravity: 7.47 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.02 AU - 2.78 AU

Year: 2439 Days

Day: 12.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 25,521,470 km

• M1: 129,851 km (0.049 R)
• M2: 524,490 km (0.077 R)
• M3: 901,178 km (0.116 R)
• M4: 1,543,102 km (0.066 R)
• M5: 2,116,660 km (0.087 R)
• M6: 2,482,427 km (0.059 R)
• M7: 2,987,320 km (0.034 R)
• M8: 3,361,165 km (0.046 R)
• M9: 3,804,573 km (0.12 R)
• M10: 4,478,063 km (0.042 R)
• M11: 4,900,826 km (0.112 R)
• M12: 5,350,069 km (0.05 R)
• M13: 6,580,661 km (0.093 R)
• M14: 6,923,090 km (0.026 R)
• M15: 7,737,651 km (0.078 R)
• M16: 8,381,071 km (0.106 R)
• M17: 9,341,639 km (0.115 R)
• M18: 10,412,012 km (0.118 R)
• M19: 11,685,987 km (0.048 R)
• M20: 14,067,286 km (0.115 R)
• M21: 15,124,195 km (0.106 R)
• M22: 16,913,535 km (0.086 R)
• M23: 18,275,325 km (0.046 R)
• M24: 18,782,910 km (0.105 R)
• M25: 19,767,563 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.4

Radius: 9.2

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.09 AU - 3.91 AU

Year: 4295 Days

Day: 6.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 25,521,470 km

• M1: 114,442 km (0.029 R)
• M2: 481,406 km (0.088 R)
• M3: 939,175 km (0.073 R)
• M4: 1,417,440 km (0.068 R)
• M5: 2,131,620 km (0.114 R)
• M6: 2,486,915 km (0.109 R)
• M7: 2,864,949 km (0.116 R)
• M8: 3,372,983 km (0.084 R)
• M9: 3,678,163 km (0.054 R)
• M10: 5,238,618 km (0.04 R)
• M11: 5,571,025 km (0.052 R)
• M12: 6,306,747 km (0.056 R)
• M13: 6,653,814 km (0.085 R)
• M14: 7,707,432 km (0.092 R)
• M15: 8,690,739 km (0.096 R)
• M16: 9,231,086 km (0.119 R)
• M17: 13,002,149 km (0.093 R)
• M18: 15,458,846 km (0.059 R)
• M19: 15,931,724 km (0.052 R)
• M20: 16,577,239 km (0.113 R)
• M21: 17,017,207 km (0.077 R)
• M22: 17,634,896 km (0.072 R)
• M23: 19,577,724 km (0.078 R)
• M24: 19,945,735 km (0.06 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.5

Radius: 14

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.85 AU - 4.55 AU

Year: 4669 Days

Day: 6 Hours

Environment

Temp: -207 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,521,470 km

• M1: 174,132 km (0.1 R)
• M2: 648,956 km (0.065 R)
• M3: 1,119,291 km (0.088 R)
• M4: 1,616,854 km (0.068 R)
• M5: 2,341,057 km (0.047 R)
• M6: 2,950,519 km (0.101 R)
• M7: 3,475,907 km (0.098 R)
• M8: 4,794,462 km (0.118 R)
• M9: 5,639,989 km (0.079 R)
• M10: 6,424,032 km (0.076 R)
• M11: 7,109,340 km (0.073 R)
• M12: 10,350,976 km (0.118 R)
• M13: 11,019,379 km (0.114 R)
• M14: 15,026,059 km (0.092 R)
• M15: 17,077,943 km (0.104 R)
• M16: 18,203,069 km (0.114 R)
• M17: 19,112,026 km (0.117 R)
• M18: 20,462,595 km (0.086 R)
• M19: 22,459,128 km (0.11 R)
• M20: 26,016,416 km (0.109 R)
• M21: 26,836,811 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 106.9

Radius: 5.5

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.46 AU - 6.7 AU

Year: 9835 Days

Day: 19.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 25,521,470 km

• M1: 68,366 km (0.095 R)
• M2: 346,917 km (0.114 R)
• M3: 520,900 km (0.115 R)
• M4: 776,413 km (0.06 R)
• M5: 1,025,344 km (0.08 R)
• M6: 1,399,937 km (0.096 R)
• M7: 1,954,197 km (0.078 R)
• M8: 2,796,283 km (0.079 R)
• M9: 4,166,002 km (0.091 R)
• M10: 4,538,351 km (0.089 R)
• M11: 4,831,862 km (0.096 R)
• M12: 5,649,115 km (0.091 R)
• M13: 6,312,432 km (0.096 R)
• M14: 11,962,295 km (0.12 R)
• M15: 14,517,127 km (0.096 R)
• M16: 15,262,573 km (0.093 R)
• M17: 17,003,294 km (0.118 R)
• M18: 19,630,981 km (0.085 R)
• M19: 20,873,690 km (0.115 R)
• M20: 21,822,440 km (0.094 R)
• M21: 22,029,334 km (0.078 R)
• M22: 23,878,214 km (0.115 R)
• M23: 24,915,525 km (0.043 R)
• M24: 25,217,264 km (0.115 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 204 - 11,433 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit