🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.3

Radius: 8.6

Gravity: 8.83 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.97 AU - 1.21 AU

Year: 759 Days

Day: 9.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,423,286 km

• M1: 106,962 km (0.057 R)
• M2: 418,126 km (0.12 R)
• M3: 703,708 km (0.06 R)
• M4: 973,882 km (0.081 R)
• M5: 1,260,811 km (0.1 R)
• M6: 1,573,321 km (0.097 R)
• M7: 1,892,563 km (0.118 R)
• M8: 2,175,003 km (0.051 R)
• M9: 3,057,780 km (0.063 R)
• M10: 3,845,264 km (0.097 R)
• M11: 4,382,170 km (0.116 R)
• M12: 4,744,646 km (0.113 R)
• M13: 5,362,784 km (0.114 R)
• M14: 5,855,709 km (0.083 R)
• M15: 6,566,748 km (0.04 R)
• M16: 7,020,329 km (0.048 R)
• M17: 7,870,194 km (0.048 R)
• M18: 8,258,251 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.8

Radius: 8

Gravity: 10.51 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.97 AU - 1.35 AU

Year: 833 Days

Day: 11.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,423,286 km

• M1: 99,782 km (0.075 R)
• M2: 431,440 km (0.038 R)
• M3: 723,605 km (0.065 R)
• M4: 991,684 km (0.05 R)
• M5: 1,853,368 km (0.084 R)
• M6: 2,754,994 km (0.072 R)
• M7: 3,861,570 km (0.056 R)
• M8: 4,431,388 km (0.072 R)
• M9: 4,719,364 km (0.064 R)
• M10: 5,678,735 km (0.074 R)
• M11: 6,080,405 km (0.076 R)
• M12: 6,415,355 km (0.029 R)
• M13: 8,077,537 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.7

Radius: 9.1

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.05 AU - 1.63 AU

Year: 1034 Days

Day: 12.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,423,286 km

• M1: 113,246 km (0.084 R)
• M2: 446,400 km (0.111 R)
• M3: 806,333 km (0.103 R)
• M4: 2,236,937 km (0.081 R)
• M5: 2,840,116 km (0.115 R)
• M6: 3,160,255 km (0.1 R)
• M7: 3,708,382 km (0.071 R)
• M8: 4,220,605 km (0.103 R)
• M9: 5,234,579 km (0.099 R)
• M10: 6,731,755 km (0.107 R)
• M11: 8,288,470 km (0.093 R)
• M12: 8,865,918 km (0.114 R)
• M13: 9,330,270 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.6

Radius: 13.9

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2 AU - 2.44 AU

Year: 2206 Days

Day: 5.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,423,286 km

• M1: 173,234 km (0.103 R)
• M2: 681,418 km (0.027 R)
• M3: 1,243,458 km (0.103 R)
• M4: 2,076,418 km (0.03 R)
• M5: 2,648,481 km (0.12 R)
• M6: 3,646,897 km (0.047 R)
• M7: 4,487,338 km (0.098 R)
• M8: 4,972,035 km (0.099 R)
• M9: 5,627,423 km (0.097 R)
• M10: 7,700,700 km (0.089 R)
• M11: 8,816,700 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662

Radius: 11

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 3.76 AU - 5.02 AU

Year: 6134 Days

Day: 7.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 84,423,286 km

• M1: 172,935 km (0.119 R)
• M2: 625,768 km (0.096 R)
• M3: 1,029,533 km (0.074 R)
• M4: 1,452,595 km (0.032 R)
• M5: 2,006,556 km (0.077 R)
• M6: 2,922,245 km (0.118 R)
• M7: 3,881,766 km (0.112 R)
• M8: 4,791,171 km (0.12 R)
• M9: 5,837,010 km (0.078 R)
• M10: 7,570,849 km (0.096 R)
• M11: 8,062,876 km (0.118 R)
• M12: 9,153,295 km (0.052 R)
• M13: 9,581,295 km (0.085 R)
• M14: 9,977,729 km (0.055 R)
• M15: 10,663,037 km (0.098 R)
• M16: 12,855,095 km (0.119 R)
• M17: 15,272,596 km (0.047 R)
• M18: 15,632,529 km (0.106 R)
• M19: 16,620,024 km (0.084 R)
• M20: 17,322,685 km (0.058 R)
• M21: 18,787,398 km (0.11 R)
• M22: 22,343,788 km (0.092 R)
• M23: 22,886,081 km (0.089 R)
• M24: 23,516,486 km (0.059 R)
• M25: 24,402,255 km (0.07 R)
• M26: 25,645,713 km (0.1 R)
• M27: 26,843,842 km (0.116 R)
• M28: 27,545,157 km (0.032 R)
• M29: 27,989,612 km (0.102 R)
• M30: 28,892,884 km (0.047 R)
• M31: 29,444,003 km (0.103 R)
• M32: 31,235,886 km (0.084 R)
• M33: 32,899,863 km (0.081 R)
• M34: 33,703,054 km (0.045 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 31.8

Radius: 3.2

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 4.91 AU - 7.97 AU

Year: 10898 Days

Day: 22.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,423,286 km

• M1: 77,940 km (0.053 R)
• M2: 406,158 km (0.074 R)
• M3: 1,487,152 km (0.052 R)
• M4: 3,135,123 km (0.112 R)
• M5: 3,253,903 km (0.075 R)
• M6: 3,855,137 km (0.101 R)
• M7: 3,991,570 km (0.115 R)
• M8: 5,839,852 km (0.107 R)
• M9: 9,221,213 km (0.106 R)
• M10: 18,134,852 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50.7

Radius: 6.2

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 6.83 AU - 10.19 AU

Year: 16555 Days

Day: 24.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,423,286 km

• M1: 77,641 km (0.091 R)
• M2: 298,448 km (0.12 R)
• M3: 593,904 km (0.075 R)
• M4: 1,123,630 km (0.098 R)
• M5: 1,558,211 km (0.088 R)
• M6: 1,834,519 km (0.071 R)
• M7: 2,846,698 km (0.118 R)
• M8: 3,694,319 km (0.08 R)
• M9: 4,211,330 km (0.068 R)
• M10: 4,956,925 km (0.104 R)
• M11: 6,578,417 km (0.088 R)
• M12: 8,078,734 km (0.095 R)
• M13: 8,638,529 km (0.112 R)
• M14: 10,824,603 km (0.118 R)
• M15: 13,715,582 km (0.086 R)
• M16: 14,511,442 km (0.05 R)
• M17: 18,004,104 km (0.112 R)
• M18: 19,217,342 km (0.086 R)
• M19: 21,242,299 km (0.091 R)
• M20: 24,310,252 km (0.111 R)
• M21: 26,836,960 km (0.113 R)
• M22: 27,827,897 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.2

Radius: 7.4

Gravity: 13.66 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 8.67 AU - 12.13 AU

Year: 22366 Days

Day: 23.5 Hours

Environment

Temp: -244 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 84,423,286 km

• M1: 92,302 km (0.07 R)
• M2: 406,009 km (0.063 R)
• M3: 736,770 km (0.119 R)
• M4: 2,508,307 km (0.119 R)
• M5: 2,907,584 km (0.071 R)
• M6: 3,319,577 km (0.111 R)
• M7: 4,260,547 km (0.116 R)
• M8: 4,503,644 km (0.099 R)
• M9: 4,792,966 km (0.085 R)
• M10: 5,133,002 km (0.114 R)
• M11: 5,408,711 km (0.094 R)
• M12: 5,694,144 km (0.071 R)
• M13: 8,625,963 km (0.05 R)
• M14: 9,418,383 km (0.112 R)
• M15: 12,295,000 km (0.089 R)
• M16: 20,093,388 km (0.118 R)
• M17: 22,721,224 km (0.04 R)
• M18: 28,158,508 km (0.113 R)
• M19: 32,763,729 km (0.034 R)
• M20: 36,965,484 km (0.116 R)
• M21: 37,257,798 km (0.097 R)
• M22: 42,465,151 km (0.086 R)
• M23: 58,943,805 km (0.113 R)
• M24: 61,364,747 km (0.102 R)
• M25: 69,467,716 km (0.088 R)
• M26: 71,486,091 km (0.119 R)
• M27: 76,821,050 km (0.058 R)
• M28: 82,166,780 km (0.099 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 150 - 18,870 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit