🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.9

Radius: 9.2

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.55 AU - 0.75 AU

Year: 349 Days

Day: 13.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,607,204 km

• M1: 114,442 km (0.108 R)
• M2: 438,172 km (0.074 R)
• M3: 905,516 km (0.067 R)
• M4: 1,212,341 km (0.105 R)
• M5: 1,520,513 km (0.088 R)
• M6: 2,234,244 km (0.117 R)
• M7: 2,576,524 km (0.08 R)
• M8: 2,865,697 km (0.103 R)
• M9: 3,155,917 km (0.095 R)
• M10: 3,622,812 km (0.092 R)
• M11: 3,963,296 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.1

Radius: 13

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.63 AU - 0.75 AU

Year: 382 Days

Day: 7.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,607,204 km

• M1: 161,715 km (0.054 R)
• M2: 699,520 km (0.116 R)
• M3: 1,107,922 km (0.077 R)
• M4: 1,609,673 km (0.093 R)
• M5: 2,114,566 km (0.038 R)
• M6: 2,783,568 km (0.119 R)
• M7: 3,578,231 km (0.12 R)
• M8: 4,223,597 km (0.074 R)
• M9: 5,048,629 km (0.026 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.4

Radius: 9.5

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.71 AU - 0.87 AU

Year: 468 Days

Day: 12.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,607,204 km

• M1: 118,332 km (0.101 R)
• M2: 413,937 km (0.061 R)
• M3: 726,298 km (0.094 R)
• M4: 1,227,899 km (0.056 R)
• M5: 1,925,175 km (0.108 R)
• M6: 2,281,218 km (0.091 R)
• M7: 2,994,949 km (0.095 R)
• M8: 3,597,978 km (0.075 R)
• M9: 3,981,398 km (0.097 R)
• M10: 4,740,906 km (0.083 R)
• M11: 5,076,753 km (0.117 R)
• M12: 5,444,914 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.8

Radius: 11.2

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.1 AU - 1.26 AU

Year: 855 Days

Day: 11.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,607,204 km

• M1: 139,276 km (0.111 R)
• M2: 515,065 km (0.113 R)
• M3: 945,309 km (0.095 R)
• M4: 1,403,826 km (0.064 R)
• M5: 2,037,523 km (0.099 R)
• M6: 2,484,671 km (0.1 R)
• M7: 2,984,926 km (0.115 R)
• M8: 3,875,782 km (0.041 R)
• M9: 4,918,329 km (0.068 R)
• M10: 5,413,498 km (0.087 R)
• M11: 5,806,641 km (0.065 R)
• M12: 6,421,788 km (0.111 R)
• M13: 6,841,410 km (0.119 R)
• M14: 7,234,703 km (0.058 R)
• M15: 7,782,680 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.6

Radius: 13.8

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.53 AU - 2.75 AU

Year: 2860 Days

Day: 15 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,607,204 km

• M1: 173,683 km (0.09 R)
• M2: 743,352 km (0.076 R)
• M3: 1,316,312 km (0.082 R)
• M4: 2,083,001 km (0.049 R)
• M5: 2,773,694 km (0.117 R)
• M6: 3,248,518 km (0.106 R)
• M7: 4,364,817 km (0.101 R)
• M8: 5,012,277 km (0.085 R)
• M9: 5,673,649 km (0.107 R)
• M10: 6,942,837 km (0.092 R)
• M11: 8,013,360 km (0.116 R)
• M12: 9,467,750 km (0.096 R)
• M13: 11,130,830 km (0.079 R)
• M14: 12,052,502 km (0.109 R)
• M15: 13,111,505 km (0.084 R)
• M16: 14,556,322 km (0.061 R)
• M17: 17,389,256 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.3

Radius: 8.5

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 3.6 AU - 4.02 AU

Year: 4959 Days

Day: 5.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,607,204 km

• M1: 106,364 km (0.085 R)
• M2: 669,301 km (0.094 R)
• M3: 1,766,152 km (0.107 R)
• M4: 2,129,376 km (0.118 R)
• M5: 2,798,079 km (0.061 R)
• M6: 4,251,422 km (0.119 R)
• M7: 5,496,675 km (0.047 R)
• M8: 7,059,374 km (0.116 R)
• M9: 8,128,101 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10

Radius: 11.3

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 4.94 AU - 5.12 AU

Year: 7523 Days

Day: 6.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 80,607,204 km

• M1: 215,720 km (0.088 R)
• M2: 942,915 km (0.115 R)
• M3: 1,370,316 km (0.074 R)
• M4: 1,853,817 km (0.037 R)
• M5: 3,734,711 km (0.112 R)
• M6: 4,105,115 km (0.054 R)
• M7: 6,130,222 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.8

Radius: 8.7

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.04 AU - 6.24 AU

Year: 7771 Days

Day: 9.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 80,607,204 km

• M1: 108,309 km (0.119 R)
• M2: 454,329 km (0.054 R)
• M3: 1,271,283 km (0.105 R)
• M4: 1,656,198 km (0.114 R)
• M5: 2,733,303 km (0.09 R)
• M6: 3,675,470 km (0.066 R)
• M7: 5,416,939 km (0.094 R)
• M8: 6,404,285 km (0.036 R)
• M9: 7,865,108 km (0.043 R)
• M10: 8,968,093 km (0.112 R)
• M11: 9,913,552 km (0.118 R)
• M12: 14,752,744 km (0.079 R)
• M13: 15,775,544 km (0.119 R)
• M14: 19,863,456 km (0.058 R)
• M15: 20,341,870 km (0.081 R)
• M16: 24,217,801 km (0.03 R)
• M17: 25,638,681 km (0.113 R)
• M18: 27,449,863 km (0.045 R)
• M19: 28,993,863 km (0.059 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 755

Radius: 7.4

Gravity: 13.79 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 9.06 AU - 10.74 AU

Year: 20772 Days

Day: 20.4 Hours

Environment

Temp: -245 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 80,607,204 km

• M1: 93,499 km (0.081 R)
• M2: 347,815 km (0.103 R)
• M3: 585,526 km (0.115 R)
• M4: 870,061 km (0.105 R)
• M5: 1,110,465 km (0.115 R)
• M6: 1,365,230 km (0.061 R)
• M7: 1,641,837 km (0.117 R)
• M8: 2,376,512 km (0.1 R)
• M9: 3,038,482 km (0.045 R)
• M10: 3,514,652 km (0.067 R)
• M11: 4,236,911 km (0.069 R)
• M12: 4,615,543 km (0.075 R)
• M13: 5,361,887 km (0.064 R)
• M14: 6,950,616 km (0.107 R)
• M15: 9,164,366 km (0.117 R)
• M16: 9,506,645 km (0.065 R)
• M17: 9,798,511 km (0.104 R)
• M18: 10,772,393 km (0.117 R)
• M19: 11,478,495 km (0.036 R)
• M20: 14,768,751 km (0.104 R)
• M21: 15,398,707 km (0.105 R)
• M22: 17,483,354 km (0.102 R)
• M23: 19,749,013 km (0.115 R)
• M24: 20,416,968 km (0.113 R)
• M25: 25,297,000 km (0.095 R)
• M26: 34,059,396 km (0.102 R)
• M27: 35,019,366 km (0.117 R)
• M28: 35,716,043 km (0.057 R)
• M29: 43,039,756 km (0.054 R)
• M30: 45,797,593 km (0.081 R)
• M31: 51,304,141 km (0.115 R)
• M32: 54,960,911 km (0.091 R)
• M33: 61,166,829 km (0.026 R)
• M34: 67,180,365 km (0.05 R)
• M35: 71,996,668 km (0.11 R)
• M36: 74,488,819 km (0.082 R)
• M37: 76,803,996 km (0.211 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 13,311 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit