🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.2

Radius: 11.2

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.77 AU - 0.91 AU

Year: 489 Days

Day: 8.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,936,806 km

• M1: 139,276 km (0.06 R)
• M2: 538,552 km (0.103 R)
• M3: 920,326 km (0.11 R)
• M4: 1,442,123 km (0.07 R)
• M5: 1,987,857 km (0.034 R)
• M6: 2,657,307 km (0.104 R)
• M7: 3,827,462 km (0.079 R)
• M8: 4,898,133 km (0.103 R)
• M9: 5,296,363 km (0.111 R)
• M10: 5,734,236 km (0.06 R)
• M11: 6,763,021 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.8

Radius: 11.3

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.96 AU - 1.22 AU

Year: 724 Days

Day: 8.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,936,806 km

• M1: 140,472 km (0.113 R)
• M2: 596,896 km (0.09 R)
• M3: 1,113,307 km (0.114 R)
• M4: 1,582,446 km (0.072 R)
• M5: 2,126,534 km (0.114 R)
• M6: 2,514,142 km (0.079 R)
• M7: 3,185,537 km (0.086 R)
• M8: 4,034,804 km (0.113 R)
• M9: 4,446,198 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.2

Radius: 13.4

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.72 AU - 2.78 AU

Year: 2146 Days

Day: 10.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,936,806 km

• M1: 166,652 km (0.073 R)
• M2: 1,044,193 km (0.118 R)
• M3: 2,518,630 km (0.117 R)
• M4: 3,526,471 km (0.12 R)
• M5: 4,636,487 km (0.059 R)
• M6: 5,145,868 km (0.093 R)
• M7: 5,692,498 km (0.118 R)
• M8: 6,598,762 km (0.06 R)
• M9: 7,158,557 km (0.107 R)
• M10: 8,246,433 km (0.096 R)
• M11: 8,764,042 km (0.073 R)
• M12: 9,234,677 km (0.115 R)
• M13: 12,465,392 km (0.077 R)
• M14: 13,901,532 km (0.088 R)
• M15: 15,885,648 km (0.057 R)
• M16: 17,414,090 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.9

Radius: 8.1

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.39 AU - 2.41 AU

Year: 2364 Days

Day: 7.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,936,806 km

• M1: 100,829 km (0.083 R)
• M2: 360,830 km (0.103 R)
• M3: 681,418 km (0.033 R)
• M4: 942,766 km (0.088 R)
• M5: 1,827,338 km (0.097 R)
• M6: 2,936,157 km (0.099 R)
• M7: 3,901,961 km (0.059 R)
• M8: 5,439,678 km (0.04 R)
• M9: 6,310,038 km (0.12 R)
• M10: 6,908,430 km (0.075 R)
• M11: 7,953,969 km (0.066 R)
• M12: 8,569,564 km (0.079 R)
• M13: 9,566,485 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.6

Radius: 8.8

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.4 AU - 3.32 AU

Year: 3075 Days

Day: 8.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,936,806 km

• M1: 109,506 km (0.085 R)
• M2: 401,969 km (0.117 R)
• M3: 720,164 km (0.073 R)
• M4: 1,011,431 km (0.06 R)
• M5: 1,489,845 km (0.08 R)
• M6: 2,697,998 km (0.115 R)
• M7: 3,264,824 km (0.103 R)
• M8: 3,567,760 km (0.048 R)
• M9: 3,850,500 km (0.079 R)
• M10: 4,768,133 km (0.096 R)
• M11: 6,799,522 km (0.086 R)
• M12: 7,660,757 km (0.058 R)
• M13: 8,828,967 km (0.071 R)
• M14: 10,000,318 km (0.064 R)
• M15: 11,392,925 km (0.109 R)
• M16: 11,760,337 km (0.116 R)
• M17: 14,180,681 km (0.106 R)
• M18: 15,039,972 km (0.075 R)
• M19: 15,782,276 km (0.101 R)
• M20: 16,704,846 km (0.078 R)
• M21: 17,990,490 km (0.048 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.7

Radius: 9.5

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.57 AU - 4.27 AU

Year: 4935 Days

Day: 12.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,936,806 km

• M1: 118,332 km (0.088 R)
• M2: 475,422 km (0.104 R)
• M3: 812,316 km (0.086 R)
• M4: 1,111,063 km (0.118 R)
• M5: 1,541,905 km (0.071 R)
• M6: 2,608,388 km (0.116 R)
• M7: 3,860,373 km (0.115 R)
• M8: 4,316,198 km (0.098 R)
• M9: 5,067,329 km (0.116 R)
• M10: 6,509,153 km (0.08 R)
• M11: 7,427,085 km (0.103 R)
• M12: 9,357,347 km (0.091 R)
• M13: 13,969,599 km (0.093 R)
• M14: 17,728,993 km (0.059 R)
• M15: 20,443,895 km (0.074 R)
• M16: 23,573,034 km (0.099 R)
• M17: 24,250,413 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.5

Radius: 9.4

Gravity: 10.69 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 5.32 AU - 6.04 AU

Year: 8607 Days

Day: 6.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,936,806 km

• M1: 116,836 km (0.116 R)
• M2: 609,013 km (0.068 R)
• M3: 1,023,249 km (0.115 R)
• M4: 2,697,250 km (0.088 R)
• M5: 3,017,688 km (0.079 R)
• M6: 3,892,537 km (0.075 R)
• M7: 4,417,924 km (0.077 R)
• M8: 4,865,671 km (0.068 R)
• M9: 6,430,016 km (0.088 R)
• M10: 6,927,279 km (0.081 R)
• M11: 7,286,314 km (0.085 R)
• M12: 8,041,783 km (0.111 R)
• M13: 11,263,972 km (0.105 R)
• M14: 11,649,635 km (0.037 R)
• M15: 13,587,526 km (0.082 R)
• M16: 18,773,635 km (0.117 R)
• M17: 19,631,130 km (0.074 R)
• M18: 20,351,743 km (0.103 R)
• M19: 22,446,263 km (0.103 R)
• M20: 22,794,377 km (0.098 R)
• M21: 25,804,137 km (0.115 R)
• M22: 30,533,973 km (0.119 R)
• M23: 39,102,340 km (0.096 R)
• M24: 41,666,448 km (0.099 R)
• M25: 44,613,975 km (0.087 R)
• M26: 45,580,227 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.8

Radius: 12.1

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 5.49 AU - 6.15 AU

Year: 8927 Days

Day: 7.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,936,806 km

• M1: 150,795 km (0.089 R)
• M2: 714,031 km (0.102 R)
• M3: 2,317,720 km (0.085 R)
• M4: 2,799,126 km (0.058 R)
• M5: 3,483,386 km (0.078 R)
• M6: 3,990,972 km (0.099 R)
• M7: 4,947,052 km (0.094 R)
• M8: 5,463,913 km (0.107 R)
• M9: 5,916,297 km (0.119 R)
• M10: 7,045,312 km (0.099 R)
• M11: 7,700,850 km (0.059 R)
• M12: 8,566,572 km (0.085 R)
• M13: 9,587,877 km (0.057 R)
• M14: 10,540,367 km (0.094 R)
• M15: 11,555,089 km (0.078 R)
• M16: 12,032,456 km (0.063 R)
• M17: 13,140,378 km (0.107 R)
• M18: 13,778,263 km (0.073 R)
• M19: 16,538,045 km (0.093 R)
• M20: 17,350,511 km (0.082 R)
• M21: 26,813,174 km (0.038 R)
• M22: 32,001,528 km (0.106 R)
• M23: 35,549,391 km (0.108 R)
• M24: 36,221,534 km (0.097 R)
• M25: 36,788,061 km (0.117 R)
• M26: 37,245,681 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 302.8

Radius: 7

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 7.81 AU - 9.75 AU

Year: 16542 Days

Day: 22.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,936,806 km

• M1: 262,544 km (0.064 R)
• M2: 2,648,630 km (0.096 R)
• M3: 3,374,479 km (0.06 R)
• M4: 3,973,319 km (0.106 R)
• M5: 6,383,790 km (0.099 R)
• M6: 8,159,816 km (0.098 R)
• M7: 12,004,182 km (0.111 R)
• M8: 24,188,480 km (0.077 R)
• M9: 24,468,078 km (0.084 R)
• M10: 29,556,051 km (0.066 R)
• M11: 33,084,467 km (0.083 R)
• M12: 35,068,434 km (0.105 R)
• M13: 42,163,561 km (0.105 R)
• M14: 42,976,177 km (0.12 R)
• M15: 45,618,375 km (0.085 R)
• M16: 47,487,301 km (0.12 R)
• M17: 49,108,044 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223

Radius: 3.1

Gravity: 23.2 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 8.66 AU - 13.78 AU

Year: 23896 Days

Day: 17.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,936,806 km

• M1: 39,045 km (0.1 R)
• M2: 270,922 km (0.116 R)
• M3: 468,541 km (0.098 R)
• M4: 793,168 km (0.075 R)
• M5: 1,097,749 km (0.095 R)
• M6: 1,968,558 km (0.049 R)
• M7: 3,613,537 km (0.107 R)
• M8: 4,127,704 km (0.027 R)
• M9: 4,786,982 km (0.073 R)
• M10: 5,586,583 km (0.072 R)
• M11: 6,593,077 km (0.089 R)
• M12: 6,757,934 km (0.118 R)
• M13: 15,406,187 km (0.077 R)
• M14: 28,529,810 km (0.04 R)
• M15: 29,856,444 km (0.031 R)
• M16: 31,922,690 km (0.071 R)
• M17: 34,328,074 km (0.097 R)
• M18: 38,158,378 km (0.101 R)
• M19: 38,423,316 km (0.042 R)
• M20: 40,450,367 km (0.084 R)
• M21: 41,141,509 km (0.058 R)
• M22: 48,336,718 km (0.119 R)
• M23: 50,696,026 km (0.116 R)
• M24: 50,856,095 km (0.104 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 340 - 19,839 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit