🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.4

Radius: 14.7

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.43 AU - 0.69 AU

Year: 279 Days

Day: 12.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,458,752 km

• M1: 182,809 km (0.104 R)
• M2: 680,521 km (0.076 R)
• M3: 1,261,858 km (0.097 R)
• M4: 1,832,724 km (0.081 R)
• M5: 2,902,797 km (0.085 R)
• M6: 3,589,152 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.3

Radius: 11

Gravity: 6.98 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.47 AU - 0.65 AU

Year: 279 Days

Day: 5.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 124.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,458,752 km

• M1: 136,882 km (0.114 R)
• M2: 641,924 km (0.05 R)
• M3: 1,221,616 km (0.107 R)
• M4: 1,607,579 km (0.075 R)
• M5: 2,021,965 km (0.082 R)
• M6: 3,039,679 km (0.116 R)
• M7: 3,532,155 km (0.11 R)
• M8: 4,127,256 km (0.089 R)
• M9: 4,650,549 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 192.3

Radius: 9.6

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.57 AU - 0.77 AU

Year: 366 Days

Day: 13 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 72,458,752 km

• M1: 123,269 km (0.082 R)
• M2: 483,949 km (0.117 R)
• M3: 847,771 km (0.088 R)
• M4: 2,069,986 km (0.086 R)
• M5: 2,480,931 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.2

Radius: 13.5

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.94 AU - 2.74 AU

Year: 2387 Days

Day: 13.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,458,752 km

• M1: 170,242 km (0.089 R)
• M2: 914,043 km (0.1 R)
• M3: 1,374,954 km (0.088 R)
• M4: 1,948,063 km (0.059 R)
• M5: 2,439,193 km (0.084 R)
• M6: 3,076,929 km (0.074 R)
• M7: 3,586,310 km (0.101 R)
• M8: 4,519,352 km (0.113 R)
• M9: 4,953,485 km (0.08 R)
• M10: 5,559,655 km (0.099 R)
• M11: 5,982,568 km (0.05 R)
• M12: 6,480,729 km (0.094 R)
• M13: 7,441,746 km (0.091 R)
• M14: 8,366,560 km (0.036 R)
• M15: 9,160,626 km (0.096 R)
• M16: 10,004,208 km (0.088 R)
• M17: 11,887,196 km (0.118 R)
• M18: 13,458,124 km (0.093 R)
• M19: 15,404,691 km (0.077 R)
• M20: 17,060,889 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.4

Radius: 12.1

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.66 AU - 2.84 AU

Year: 3041 Days

Day: 9.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 95.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,458,752 km

• M1: 150,495 km (0.065 R)
• M2: 537,206 km (0.053 R)
• M3: 988,543 km (0.114 R)
• M4: 1,424,172 km (0.059 R)
• M5: 2,429,170 km (0.084 R)
• M6: 3,715,712 km (0.112 R)
• M7: 5,121,483 km (0.107 R)
• M8: 6,434,055 km (0.103 R)
• M9: 7,294,691 km (0.102 R)
• M10: 7,782,231 km (0.1 R)
• M11: 9,544,494 km (0.076 R)
• M12: 10,198,835 km (0.037 R)
• M13: 11,067,849 km (0.09 R)
• M14: 12,342,722 km (0.111 R)
• M15: 12,829,813 km (0.114 R)
• M16: 13,627,319 km (0.05 R)
• M17: 15,367,591 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.9

Radius: 8.5

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.71 AU - 3.23 AU

Year: 3413 Days

Day: 9.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,458,752 km

• M1: 105,766 km (0.108 R)
• M2: 436,975 km (0.055 R)
• M3: 938,577 km (0.036 R)
• M4: 1,346,231 km (0.118 R)
• M5: 2,184,727 km (0.117 R)
• M6: 2,770,403 km (0.073 R)
• M7: 3,133,327 km (0.092 R)
• M8: 4,072,054 km (0.099 R)
• M9: 5,691,002 km (0.031 R)
• M10: 6,386,184 km (0.119 R)
• M11: 6,712,905 km (0.115 R)
• M12: 8,101,323 km (0.05 R)
• M13: 8,387,653 km (0.095 R)
• M14: 9,391,156 km (0.057 R)
• M15: 12,625,013 km (0.116 R)
• M16: 13,849,771 km (0.113 R)
• M17: 14,444,572 km (0.095 R)
• M18: 14,913,711 km (0.041 R)
• M19: 17,099,336 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 570.1

Radius: 3.8

Gravity: 39.48 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 5.78 AU - 8.5 AU

Year: 12723 Days

Day: 20.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,458,752 km

• M1: 54,304 km (0.058 R)
• M2: 311,762 km (0.116 R)
• M3: 445,502 km (0.119 R)
• M4: 733,628 km (0.114 R)
• M5: 1,233,434 km (0.071 R)
• M6: 1,446,911 km (0.093 R)
• M7: 2,640,402 km (0.111 R)
• M8: 6,193,950 km (0.044 R)
• M9: 6,462,329 km (0.066 R)
• M10: 9,586,830 km (0.092 R)
• M11: 10,636,109 km (0.116 R)
• M12: 12,290,213 km (0.073 R)
• M13: 12,775,060 km (0.109 R)
• M14: 16,097,928 km (0.103 R)
• M15: 17,196,874 km (0.114 R)
• M16: 18,580,504 km (0.081 R)
• M17: 19,788,806 km (0.043 R)
• M18: 23,633,771 km (0.038 R)
• M19: 24,954,271 km (0.085 R)
• M20: 27,535,882 km (0.059 R)
• M21: 35,237,778 km (0.084 R)
• M22: 35,480,277 km (0.117 R)
• M23: 36,584,907 km (0.103 R)
• M24: 38,991,787 km (0.106 R)
• M25: 43,558,562 km (0.109 R)
• M26: 52,306,297 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.7

Radius: 4.7

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 7.05 AU - 8.75 AU

Year: 14807 Days

Day: 15.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,458,752 km

• M1: 58,493 km (0.077 R)
• M2: 645,066 km (0.065 R)
• M3: 1,794,875 km (0.071 R)
• M4: 2,922,843 km (0.12 R)
• M5: 3,444,341 km (0.058 R)
• M6: 7,598,375 km (0.083 R)
• M7: 11,362,407 km (0.099 R)
• M8: 22,816,368 km (0.115 R)
• M9: 31,115,310 km (0.078 R)
• M10: 31,795,980 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 443

Radius: 3.9

Gravity: 29.13 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 8.4 AU - 12.86 AU

Year: 23112 Days

Day: 17.6 Hours

Environment

Temp: -242 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,458,752 km

• M1: 48,619 km (0.068 R)
• M2: 226,641 km (0.11 R)
• M3: 645,365 km (0.099 R)
• M4: 1,521,859 km (0.067 R)
• M5: 1,707,211 km (0.111 R)
• M6: 2,184,877 km (0.037 R)
• M7: 3,959,407 km (0.117 R)
• M8: 4,682,713 km (0.096 R)
• M9: 7,662,702 km (0.091 R)
• M10: 7,907,295 km (0.11 R)
• M11: 8,884,318 km (0.087 R)
• M12: 11,074,581 km (0.094 R)
• M13: 12,293,953 km (0.119 R)
• M14: 13,039,399 km (0.032 R)
• M15: 15,224,575 km (0.101 R)
• M16: 21,535,661 km (0.116 R)
• M17: 26,405,371 km (0.038 R)
• M18: 33,364,364 km (0.053 R)
• M19: 34,675,889 km (0.084 R)
• M20: 35,885,388 km (0.11 R)
• M21: 54,255,707 km (0.098 R)
• M22: 60,383,385 km (0.11 R)
• M23: 66,135,423 km (0.111 R)
• M24: 71,163,109 km (0.043 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 252 - 13,423 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit