🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.55 AU - 0.79 AU

Year: 354 Days

Day: 41.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 21.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.5

Radius: 10

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.78 AU - 1.02 AU

Year: 551 Days

Day: 6.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,210,803 km

• M1: 126,261 km (0.086 R)
• M2: 465,848 km (0.118 R)
• M3: 929,302 km (0.077 R)
• M4: 1,489,995 km (0.088 R)
• M5: 1,840,652 km (0.116 R)
• M6: 2,467,018 km (0.066 R)
• M7: 2,995,548 km (0.099 R)
• M8: 3,825,068 km (0.096 R)
• M9: 4,252,170 km (0.072 R)
• M10: 4,710,987 km (0.072 R)
• M11: 5,346,777 km (0.069 R)
• M12: 5,796,170 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.4

Radius: 11.1

Gravity: 6.08 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.06 AU - 1.22 AU

Year: 786 Days

Day: 11.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,210,803 km

• M1: 138,079 km (0.114 R)
• M2: 616,194 km (0.105 R)
• M3: 973,134 km (0.091 R)
• M4: 1,722,021 km (0.109 R)
• M5: 2,114,267 km (0.096 R)
• M6: 2,466,420 km (0.079 R)
• M7: 2,870,334 km (0.092 R)
• M8: 3,441,200 km (0.115 R)
• M9: 4,164,655 km (0.109 R)
• M10: 5,579,851 km (0.091 R)
• M11: 8,008,722 km (0.05 R)
• M12: 8,511,520 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.8

Radius: 13.5

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.11 AU - 1.19 AU

Year: 796 Days

Day: 7.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,210,803 km

• M1: 174,282 km (0.096 R)
• M2: 739,313 km (0.104 R)
• M3: 1,194,539 km (0.118 R)
• M4: 1,709,604 km (0.118 R)
• M5: 2,322,058 km (0.112 R)
• M6: 3,016,641 km (0.118 R)
• M7: 3,618,623 km (0.107 R)
• M8: 4,221,951 km (0.104 R)
• M9: 4,909,054 km (0.091 R)
• M10: 5,881,590 km (0.065 R)
• M11: 6,612,675 km (0.079 R)
• M12: 7,245,174 km (0.071 R)
• M13: 7,989,573 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.2

Radius: 10.8

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.08 AU - 1.46 AU

Year: 924 Days

Day: 14 Hours

Environment

Temp: -175 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 56,210,803 km

• M1: 134,339 km (0.108 R)
• M2: 494,720 km (0.098 R)
• M3: 965,056 km (0.119 R)
• M4: 1,469,350 km (0.116 R)
• M5: 2,145,084 km (0.083 R)
• M6: 2,678,550 km (0.111 R)
• M7: 5,399,586 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.7

Radius: 13.8

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.87 AU - 2.95 AU

Year: 2416 Days

Day: 9.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,210,803 km

• M1: 171,738 km (0.079 R)
• M2: 611,107 km (0.051 R)
• M3: 1,974,393 km (0.06 R)
• M4: 2,544,660 km (0.071 R)
• M5: 3,390,785 km (0.104 R)
• M6: 4,138,027 km (0.056 R)
• M7: 5,104,728 km (0.045 R)
• M8: 6,666,829 km (0.067 R)
• M9: 7,167,084 km (0.111 R)
• M10: 7,933,773 km (0.096 R)
• M11: 8,820,141 km (0.03 R)
• M12: 9,666,266 km (0.083 R)
• M13: 10,272,138 km (0.04 R)
• M14: 11,247,815 km (0.105 R)
• M15: 14,685,873 km (0.042 R)
• M16: 15,248,810 km (0.059 R)
• M17: 15,826,258 km (0.099 R)
• M18: 16,368,251 km (0.115 R)
• M19: 17,127,311 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.9

Radius: 10.9

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 4.21 AU - 5.89 AU

Year: 7327 Days

Day: 13.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 56,210,803 km

• M1: 135,835 km (0.082 R)
• M2: 601,383 km (0.093 R)
• M3: 1,288,486 km (0.086 R)
• M4: 1,638,545 km (0.104 R)
• M5: 2,021,366 km (0.038 R)
• M6: 2,482,427 km (0.082 R)
• M7: 3,317,183 km (0.106 R)
• M8: 3,738,750 km (0.071 R)
• M9: 5,929,611 km (0.082 R)
• M10: 7,375,175 km (0.112 R)
• M11: 7,973,866 km (0.075 R)
• M12: 8,604,570 km (0.114 R)
• M13: 10,598,112 km (0.113 R)
• M14: 12,159,764 km (0.107 R)
• M15: 14,596,713 km (0.114 R)
• M16: 14,969,661 km (0.093 R)
• M17: 18,186,164 km (0.05 R)
• M18: 20,570,156 km (0.053 R)
• M19: 21,595,649 km (0.075 R)
• M20: 22,161,728 km (0.116 R)
• M21: 23,071,283 km (0.081 R)
• M22: 27,901,200 km (0.089 R)
• M23: 28,766,923 km (0.088 R)
• M24: 31,678,097 km (0.032 R)
• M25: 32,409,182 km (0.098 R)
• M26: 35,223,417 km (0.069 R)
• M27: 36,919,109 km (0.087 R)
• M28: 38,432,291 km (0.043 R)
• M29: 39,144,377 km (0.078 R)
• M30: 40,107,488 km (0.112 R)
• M31: 41,581,775 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.7

Radius: 14.5

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.52 AU - 6.36 AU

Year: 9347 Days

Day: 8 Hours

Environment

Temp: -219 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,210,803 km

• M1: 180,265 km (0.12 R)
• M2: 837,598 km (0.102 R)
• M3: 1,922,033 km (0.089 R)
• M4: 3,250,612 km (0.092 R)
• M5: 4,308,867 km (0.1 R)
• M6: 6,105,687 km (0.067 R)
• M7: 7,032,745 km (0.098 R)
• M8: 7,938,112 km (0.046 R)
• M9: 9,546,887 km (0.088 R)
• M10: 10,292,932 km (0.118 R)
• M11: 12,001,340 km (0.105 R)
• M12: 13,187,800 km (0.079 R)
• M13: 14,793,584 km (0.05 R)
• M14: 15,733,507 km (0.093 R)
• M15: 19,202,083 km (0.12 R)
• M16: 19,896,367 km (0.106 R)
• M17: 23,385,588 km (0.07 R)
• M18: 25,898,832 km (0.118 R)
• M19: 28,947,188 km (0.072 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 911.9

Radius: 7.8

Gravity: 14.99 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 8.7 AU - 9.42 AU

Year: 17608 Days

Day: 23.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,210,803 km

• M1: 99,782 km (0.065 R)
• M2: 530,025 km (0.116 R)
• M3: 914,641 km (0.063 R)
• M4: 1,431,203 km (0.068 R)
• M5: 3,009,909 km (0.113 R)
• M6: 3,277,839 km (0.115 R)
• M7: 3,831,052 km (0.108 R)
• M8: 11,724,584 km (0.107 R)
• M9: 12,188,786 km (0.114 R)
• M10: 12,527,774 km (0.118 R)
• M11: 13,873,707 km (0.048 R)
• M12: 16,354,338 km (0.071 R)
• M13: 17,699,074 km (0.112 R)
• M14: 20,991,573 km (0.118 R)
• M15: 21,874,350 km (0.107 R)
• M16: 23,713,806 km (0.089 R)
• M17: 25,653,940 km (0.032 R)
• M18: 30,587,977 km (0.086 R)
• M19: 31,849,536 km (0.059 R)
• M20: 32,493,106 km (0.107 R)
• M21: 40,755,846 km (0.089 R)
• M22: 46,100,678 km (0.106 R)
• M23: 50,142,663 km (0.068 R)
• M24: 56,264,358 km (0.048 R)
• M25: 73,037,720 km (0.074 R)

Asteroid Belt

Center: 9.63 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 10 - Ice Giant

Semi-Major Axis: 10.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 249.7

Radius: 4

Gravity: 15.61 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 9.47 AU - 10.93 AU

Year: 21034 Days

Day: 15.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 56,210,803 km

• M1: 49,816 km (0.07 R)
• M2: 345,571 km (0.104 R)
• M3: 505,790 km (0.119 R)
• M4: 655,987 km (0.075 R)
• M5: 1,059,751 km (0.104 R)
• M6: 1,282,652 km (0.068 R)
• M7: 1,959,882 km (0.117 R)
• M8: 3,180,301 km (0.086 R)
• M9: 3,330,198 km (0.089 R)
• M10: 9,393,549 km (0.112 R)
• M11: 9,912,505 km (0.116 R)
• M12: 11,642,753 km (0.099 R)
• M13: 12,672,286 km (0.061 R)
• M14: 13,564,488 km (0.055 R)
• M15: 15,331,089 km (0.066 R)
• M16: 16,491,220 km (0.111 R)
• M17: 17,398,831 km (0.078 R)
• M18: 19,561,717 km (0.067 R)
• M19: 20,924,553 km (0.102 R)
• M20: 24,028,111 km (0.119 R)
• M21: 24,800,485 km (0.076 R)
• M22: 25,589,314 km (0.095 R)
• M23: 30,676,539 km (0.111 R)
• M24: 32,394,671 km (0.104 R)
• M25: 33,455,619 km (0.092 R)
• M26: 38,452,487 km (0.093 R)
• M27: 41,539,439 km (0.104 R)
• M28: 41,953,975 km (0.104 R)
• M29: 46,547,527 km (0.052 R)
• M30: 47,595,161 km (0.101 R)
• M31: 48,811,691 km (0.045 R)
• M32: 49,737,402 km (0.069 R)
• M33: 50,989,985 km (0.097 R)
• M34: 52,103,143 km (0.073 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 19,476 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit