🌌 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: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.55 AU - 0.79 AU

Year: 349 Days

Day: 46.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 21.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.4

Radius: 12.7

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.92 AU - 1.32 AU

Year: 754 Days

Day: 7.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 150 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,697,705 km

• M1: 157,975 km (0.116 R)
• M2: 570,417 km (0.117 R)
• M3: 1,105,079 km (0.111 R)
• M4: 1,835,267 km (0.09 R)
• M5: 2,855,973 km (0.094 R)
• M6: 3,253,006 km (0.114 R)
• M7: 4,420,019 km (0.069 R)
• M8: 5,173,693 km (0.114 R)
• M9: 5,630,565 km (0.064 R)
• M10: 6,302,857 km (0.081 R)
• M11: 7,613,933 km (0.102 R)
• M12: 8,385,559 km (0.108 R)
• M13: 9,018,208 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.6

Radius: 13.8

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.26 AU - 1.4 AU

Year: 975 Days

Day: 8.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,697,705 km

• M1: 171,589 km (0.056 R)
• M2: 634,744 km (0.104 R)
• M3: 1,164,769 km (0.067 R)
• M4: 2,014,485 km (0.085 R)
• M5: 2,488,561 km (0.077 R)
• M6: 3,089,346 km (0.076 R)
• M7: 3,595,136 km (0.102 R)
• M8: 4,568,121 km (0.026 R)
• M9: 5,116,995 km (0.094 R)
• M10: 5,709,852 km (0.112 R)
• M11: 6,852,480 km (0.105 R)
• M12: 7,383,253 km (0.085 R)
• M13: 9,391,605 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.5

Radius: 10.7

Gravity: 8.07 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.47 AU - 1.79 AU

Year: 1323 Days

Day: 11.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,697,705 km

• M1: 133,142 km (0.111 R)
• M2: 600,486 km (0.107 R)
• M3: 1,113,307 km (0.118 R)
• M4: 1,502,112 km (0.117 R)
• M5: 1,876,256 km (0.11 R)
• M6: 2,628,285 km (0.063 R)
• M7: 3,769,866 km (0.082 R)
• M8: 5,343,486 km (0.058 R)
• M9: 6,373,767 km (0.075 R)
• M10: 7,183,540 km (0.04 R)
• M11: 8,290,415 km (0.045 R)
• M12: 9,895,002 km (0.118 R)
• M13: 10,667,076 km (0.1 R)
• M14: 12,067,611 km (0.115 R)
• M15: 12,870,653 km (0.043 R)
• M16: 13,546,386 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.8

Radius: 9.3

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.65 AU - 1.87 AU

Year: 1485 Days

Day: 10.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,697,705 km

• M1: 116,986 km (0.088 R)
• M2: 614,698 km (0.106 R)
• M3: 1,004,998 km (0.114 R)
• M4: 1,989,801 km (0.05 R)
• M5: 3,477,103 km (0.082 R)
• M6: 3,790,660 km (0.045 R)
• M7: 4,248,879 km (0.099 R)
• M8: 6,718,740 km (0.072 R)
• M9: 7,791,955 km (0.107 R)
• M10: 8,206,939 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.2

Radius: 11

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.66 AU - 1.96 AU

Year: 1548 Days

Day: 13.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,697,705 km

• M1: 136,732 km (0.028 R)
• M2: 484,548 km (0.057 R)
• M3: 865,872 km (0.089 R)
• M4: 1,363,285 km (0.055 R)
• M5: 1,773,333 km (0.041 R)
• M6: 2,125,935 km (0.088 R)
• M7: 2,525,960 km (0.077 R)
• M8: 3,213,512 km (0.092 R)
• M9: 4,057,543 km (0.065 R)
• M10: 4,919,526 km (0.033 R)
• M11: 6,157,897 km (0.102 R)
• M12: 8,099,079 km (0.093 R)
• M13: 8,448,689 km (0.113 R)
• M14: 10,762,520 km (0.035 R)
• M15: 11,437,505 km (0.066 R)
• M16: 11,990,120 km (0.091 R)
• M17: 12,406,750 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.5

Radius: 14.9

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.65 AU - 2.47 AU

Year: 1880 Days

Day: 10.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,697,705 km

• M1: 185,501 km (0.103 R)
• M2: 729,439 km (0.091 R)
• M3: 1,284,747 km (0.051 R)
• M4: 1,774,380 km (0.099 R)
• M5: 2,454,303 km (0.115 R)
• M6: 3,104,904 km (0.071 R)
• M7: 3,782,582 km (0.105 R)
• M8: 4,656,533 km (0.114 R)
• M9: 7,177,407 km (0.112 R)
• M10: 7,814,394 km (0.09 R)
• M11: 8,918,277 km (0.048 R)
• M12: 9,655,495 km (0.117 R)
• M13: 10,226,211 km (0.051 R)
• M14: 11,621,211 km (0.097 R)
• M15: 12,384,310 km (0.085 R)
• M16: 13,018,605 km (0.052 R)
• M17: 13,591,266 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.2

Radius: 13.9

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.98 AU - 3.48 AU

Year: 3691 Days

Day: 8 Hours

Environment

Temp: -211 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,697,705 km

• M1: 172,935 km (0.118 R)
• M2: 633,697 km (0.079 R)
• M3: 1,074,412 km (0.119 R)
• M4: 1,512,434 km (0.119 R)
• M5: 2,106,488 km (0.114 R)
• M6: 3,447,333 km (0.062 R)
• M7: 4,121,721 km (0.067 R)
• M8: 6,661,593 km (0.11 R)
• M9: 7,739,446 km (0.073 R)
• M10: 8,510,772 km (0.091 R)
• M11: 9,747,199 km (0.113 R)
• M12: 10,375,061 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.9

Radius: 7.2

Gravity: 17.71 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 9.33 AU - 10.77 AU

Year: 20257 Days

Day: 23.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 57,697,705 km

• M1: 89,609 km (0.094 R)
• M2: 321,486 km (0.037 R)
• M3: 574,306 km (0.105 R)
• M4: 807,081 km (0.095 R)
• M5: 1,228,947 km (0.074 R)
• M6: 1,524,103 km (0.112 R)
• M7: 1,964,818 km (0.111 R)
• M8: 2,858,965 km (0.061 R)
• M9: 3,440,751 km (0.074 R)
• M10: 4,132,043 km (0.094 R)
• M11: 5,337,802 km (0.114 R)
• M12: 5,621,140 km (0.115 R)
• M13: 6,262,017 km (0.092 R)
• M14: 6,486,115 km (0.111 R)
• M15: 8,155,926 km (0.088 R)
• M16: 9,319,798 km (0.075 R)
• M17: 14,074,018 km (0.078 R)
• M18: 14,931,663 km (0.064 R)
• M19: 17,981,963 km (0.114 R)
• M20: 18,435,993 km (0.066 R)
• M21: 20,722,895 km (0.027 R)
• M22: 24,831,451 km (0.1 R)
• M23: 26,081,641 km (0.078 R)
• M24: 29,956,375 km (0.079 R)
• M25: 34,198,073 km (0.097 R)
• M26: 34,895,050 km (0.054 R)
• M27: 36,606,599 km (0.105 R)
• M28: 38,823,639 km (0.088 R)
• M29: 44,506,713 km (0.109 R)
• M30: 46,009,424 km (0.104 R)
• M31: 48,065,197 km (0.045 R)
• M32: 60,072,072 km (0.055 R)
• M33: 61,086,346 km (0.087 R)
• M34: 72,093,308 km (0.099 R)
• M35: 75,330,606 km (0.119 R)
• M36: 77,223,468 km (0.102 R)
• M37: 84,350,460 km (0.046 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.6

Radius: 7.3

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 9.57 AU - 12.03 AU

Year: 22567 Days

Day: 24.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 57,697,705 km

• M1: 90,806 km (0.091 R)
• M2: 344,823 km (0.087 R)
• M3: 616,642 km (0.085 R)
• M4: 917,334 km (0.104 R)
• M5: 1,584,840 km (0.044 R)
• M6: 1,891,366 km (0.036 R)
• M7: 2,335,073 km (0.118 R)
• M8: 2,603,302 km (0.03 R)
• M9: 3,614,135 km (0.073 R)
• M10: 4,964,555 km (0.084 R)
• M11: 5,625,179 km (0.043 R)
• M12: 6,342,950 km (0.102 R)
• M13: 9,212,237 km (0.101 R)
• M14: 9,992,240 km (0.071 R)
• M15: 10,985,420 km (0.082 R)
• M16: 11,505,871 km (0.111 R)
• M17: 13,166,408 km (0.089 R)
• M18: 13,953,442 km (0.071 R)
• M19: 14,632,916 km (0.057 R)
• M20: 20,448,683 km (0.064 R)
• M21: 21,862,382 km (0.095 R)
• M22: 23,529,202 km (0.112 R)
• M23: 25,279,198 km (0.061 R)
• M24: 30,366,573 km (0.114 R)
• M25: 31,161,236 km (0.096 R)
• M26: 33,029,714 km (0.064 R)
• M27: 33,870,155 km (0.087 R)
• M28: 36,604,355 km (0.065 R)
• M29: 47,481,467 km (0.055 R)
• M30: 47,938,189 km (0.095 R)
• M31: 53,156,462 km (0.108 R)
• M32: 53,813,496 km (0.111 R)
• M33: 57,009,205 km (0.077 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 493 - 11,261 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit