🌌 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: 534.4

Radius: 12.7

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.59 AU - 0.71 AU

Year: 362 Days

Day: 6.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,361,213 km

• M1: 157,975 km (0.094 R)
• M2: 720,763 km (0.113 R)
• M3: 1,156,242 km (0.113 R)
• M4: 1,606,532 km (0.095 R)
• M5: 2,339,412 km (0.117 R)
• M6: 2,769,805 km (0.091 R)
• M7: 3,210,969 km (0.106 R)
• M8: 3,828,808 km (0.11 R)
• M9: 4,756,614 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.2

Radius: 8.8

Gravity: 12.64 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.54 AU - 1.58 AU

Year: 1345 Days

Day: 5.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,361,213 km

• M1: 115,639 km (0.105 R)
• M2: 481,705 km (0.107 R)
• M3: 787,782 km (0.105 R)
• M4: 1,348,774 km (0.063 R)
• M5: 1,635,853 km (0.087 R)
• M6: 2,348,836 km (0.114 R)
• M7: 2,968,770 km (0.119 R)
• M8: 3,477,702 km (0.076 R)
• M9: 4,396,681 km (0.102 R)
• M10: 5,016,765 km (0.095 R)
• M11: 5,315,362 km (0.093 R)
• M12: 8,093,394 km (0.118 R)
• M13: 8,625,514 km (0.079 R)
• M14: 10,813,233 km (0.116 R)
• M15: 11,941,052 km (0.103 R)
• M16: 12,244,436 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497

Radius: 13.9

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.52 AU - 1.84 AU

Year: 1503 Days

Day: 9.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,361,213 km

• M1: 174,132 km (0.068 R)
• M2: 912,547 km (0.073 R)
• M3: 1,567,786 km (0.11 R)
• M4: 2,191,758 km (0.115 R)
• M5: 2,714,005 km (0.085 R)
• M6: 3,349,048 km (0.05 R)
• M7: 3,847,956 km (0.119 R)
• M8: 4,396,681 km (0.075 R)
• M9: 5,869,024 km (0.098 R)
• M10: 6,599,211 km (0.051 R)
• M11: 7,036,186 km (0.064 R)
• M12: 7,780,884 km (0.104 R)
• M13: 9,218,071 km (0.057 R)
• M14: 9,734,483 km (0.114 R)
• M15: 10,464,072 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.3

Radius: 13.3

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.77 AU - 3.21 AU

Year: 3569 Days

Day: 13.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,361,213 km

• M1: 165,605 km (0.115 R)
• M2: 776,712 km (0.096 R)
• M3: 1,193,492 km (0.12 R)
• M4: 2,013,587 km (0.054 R)
• M5: 2,628,435 km (0.106 R)
• M6: 6,520,373 km (0.1 R)
• M7: 7,035,438 km (0.093 R)
• M8: 7,709,077 km (0.117 R)
• M9: 9,185,758 km (0.118 R)
• M10: 10,969,264 km (0.044 R)
• M11: 13,790,829 km (0.097 R)
• M12: 14,540,315 km (0.072 R)
• M13: 15,106,991 km (0.053 R)
• M14: 17,987,947 km (0.077 R)
• M15: 21,021,343 km (0.088 R)
• M16: 21,679,873 km (0.113 R)
• M17: 22,488,300 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.1

Radius: 10.9

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.15 AU - 4.17 AU

Year: 4833 Days

Day: 7.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,361,213 km

• M1: 135,536 km (0.114 R)
• M2: 800,049 km (0.101 R)
• M3: 1,394,551 km (0.096 R)
• M4: 2,459,838 km (0.12 R)
• M5: 3,555,941 km (0.033 R)
• M6: 4,636,487 km (0.071 R)
• M7: 5,087,076 km (0.117 R)
• M8: 5,480,069 km (0.118 R)
• M9: 5,893,259 km (0.091 R)
• M10: 6,984,276 km (0.056 R)
• M11: 7,832,047 km (0.101 R)
• M12: 8,281,140 km (0.065 R)
• M13: 8,906,459 km (0.118 R)
• M14: 9,689,604 km (0.115 R)
• M15: 11,111,531 km (0.098 R)
• M16: 11,775,596 km (0.084 R)
• M17: 12,566,820 km (0.116 R)
• M18: 13,340,241 km (0.085 R)
• M19: 17,063,582 km (0.056 R)
• M20: 20,152,329 km (0.088 R)
• M21: 20,783,632 km (0.104 R)
• M22: 21,645,765 km (0.091 R)
• M23: 22,308,034 km (0.031 R)
• M24: 28,712,918 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.5

Radius: 9.1

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.03 AU - 4.35 AU

Year: 5920 Days

Day: 12.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,361,213 km

• M1: 118,631 km (0.117 R)
• M2: 852,259 km (0.071 R)
• M3: 3,298,184 km (0.095 R)
• M4: 5,727,953 km (0.119 R)
• M5: 6,982,181 km (0.078 R)
• M6: 7,969,677 km (0.09 R)
• M7: 9,716,382 km (0.073 R)
• M8: 10,903,890 km (0.034 R)
• M9: 12,141,214 km (0.11 R)
• M10: 12,634,288 km (0.08 R)
• M11: 13,001,102 km (0.102 R)
• M12: 17,804,839 km (0.118 R)
• M13: 19,273,591 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359.7

Radius: 9.1

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.33 AU - 4.71 AU

Year: 6633 Days

Day: 7.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,361,213 km

• M1: 113,246 km (0.029 R)
• M2: 425,157 km (0.06 R)
• M3: 715,826 km (0.117 R)
• M4: 1,055,413 km (0.082 R)
• M5: 1,585,289 km (0.077 R)
• M6: 2,237,685 km (0.099 R)
• M7: 2,608,987 km (0.108 R)
• M8: 3,353,386 km (0.118 R)
• M9: 4,450,537 km (0.084 R)
• M10: 4,882,276 km (0.031 R)
• M11: 5,369,666 km (0.076 R)
• M12: 6,763,469 km (0.082 R)
• M13: 7,439,353 km (0.053 R)
• M14: 8,384,362 km (0.048 R)
• M15: 9,164,066 km (0.094 R)
• M16: 10,205,866 km (0.082 R)
• M17: 12,622,620 km (0.049 R)
• M18: 16,208,780 km (0.096 R)
• M19: 16,805,526 km (0.104 R)
• M20: 19,340,312 km (0.091 R)
• M21: 23,528,454 km (0.076 R)
• M22: 24,682,302 km (0.081 R)
• M23: 26,278,960 km (0.1 R)
• M24: 26,688,709 km (0.04 R)
• M25: 27,353,073 km (0.103 R)
• M26: 28,113,479 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 151.1

Radius: 3.5

Gravity: 12.33 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.95 AU - 7.09 AU

Year: 10195 Days

Day: 16 Hours

Environment

Temp: -218 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,361,213 km

• M1: 80,484 km (0.096 R)
• M2: 363,972 km (0.046 R)
• M3: 613,800 km (0.077 R)
• M4: 950,395 km (0.043 R)
• M5: 1,288,786 km (0.065 R)
• M6: 1,715,289 km (0.106 R)
• M7: 1,876,556 km (0.025 R)
• M8: 2,607,640 km (0.052 R)
• M9: 3,705,390 km (0.072 R)
• M10: 5,848,379 km (0.092 R)
• M11: 7,438,455 km (0.074 R)
• M12: 8,125,708 km (0.078 R)
• M13: 9,459,223 km (0.093 R)
• M14: 10,528,249 km (0.079 R)
• M15: 21,115,590 km (0.086 R)
• M16: 25,961,364 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.4

Radius: 5.7

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 5.46 AU - 7.98 AU

Year: 12024 Days

Day: 24.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,361,213 km

• M1: 71,209 km (0.103 R)
• M2: 418,276 km (0.105 R)
• M3: 979,866 km (0.091 R)
• M4: 1,951,654 km (0.07 R)
• M5: 2,850,139 km (0.106 R)
• M6: 3,559,681 km (0.049 R)
• M7: 6,082,949 km (0.073 R)
• M8: 6,678,049 km (0.106 R)
• M9: 8,836,896 km (0.104 R)
• M10: 10,483,520 km (0.114 R)
• M11: 11,129,932 km (0.091 R)
• M12: 15,066,450 km (0.104 R)
• M13: 15,732,460 km (0.059 R)
• M14: 19,180,990 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 765.2

Radius: 5.8

Gravity: 22.75 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 6.44 AU - 9.18 AU

Year: 15066 Days

Day: 24.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 57.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,361,213 km

• M1: 255,214 km (0.095 R)
• M2: 478,863 km (0.101 R)
• M3: 845,976 km (0.09 R)
• M4: 1,232,986 km (0.085 R)
• M5: 2,171,712 km (0.071 R)
• M6: 3,974,815 km (0.092 R)
• M7: 5,372,508 km (0.114 R)
• M8: 7,158,109 km (0.084 R)
• M9: 11,113,327 km (0.072 R)
• M10: 12,355,139 km (0.063 R)
• M11: 13,277,559 km (0.044 R)
• M12: 13,755,674 km (0.088 R)
• M13: 18,419,088 km (0.099 R)
• M14: 19,884,998 km (0.061 R)
• M15: 22,658,841 km (0.087 R)
• M16: 26,314,864 km (0.099 R)
• M17: 28,619,419 km (0.117 R)
• M18: 32,877,274 km (0.109 R)
• M19: 33,250,072 km (0.06 R)
• M20: 36,202,236 km (0.049 R)
• M21: 42,035,805 km (0.067 R)
• M22: 55,872,710 km (0.043 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 251 - 10,996 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit